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Sample records for ga tennessee tn

  1. Tennessee

    U.S. Energy Information Administration (EIA) (indexed site)

    Tennessee

  2. ,"Tennessee Natural Gas Summary"

    U.S. Energy Information Administration (EIA) (indexed site)

    Prices" "Sourcekey","N3050TN3","N3010TN3","N3020TN3","N3035TN3","N3045TN3" "Date","Natural Gas Citygate Price in Tennessee (Dollars per Thousand Cubic Feet)","Tennessee Price of ...

  3. Middle Tennessee E M C | Open Energy Information

    Open Energy Information (Open El) [EERE & EIA]

    Tennessee E M C Place: Tennessee Website: www.mtemc.com Twitter: @MidTnElectric Facebook: https:www.facebook.comMiddleTennesseeElectric?refts Outage Hotline:...

  4. US ESC TN Site Consumption

    U.S. Energy Information Administration (EIA) (indexed site)

    ESC TN Site Consumption million Btu $0 $500 $1,000 $1,500 $2,000 $2,500 US ESC TN Expenditures dollars ALL ENERGY average per household (excl. transportation) 0 4,000 8,000 12,000 16,000 US ESC TN Site Consumption kilowatthours $0 $400 $800 $1,200 $1,600 US ESC TN Expenditures dollars ELECTRICITY ONLY average per household * Tennessee households consume an average of 79 million Btu per year, about 12% less than the U.S. average. * Average electricity consumption for Tennessee households is 33%

  5. Tennessee - Compare - U.S. Energy Information Administration (EIA)

    U.S. Energy Information Administration (EIA) (indexed site)

    Tennessee Tennessee

  6. Tennessee - Rankings - U.S. Energy Information Administration (EIA)

    U.S. Energy Information Administration (EIA) (indexed site)

    Tennessee Tennessee

  7. Tennessee - Search - U.S. Energy Information Administration (EIA)

    U.S. Energy Information Administration (EIA) (indexed site)

    Tennessee Tennessee

  8. City of Alcoa Utilities, Tennessee | Open Energy Information

    Open Energy Information (Open El) [EERE & EIA]

    Alcoa Utilities, Tennessee Jump to: navigation, search Name: City of Alcoa Utilities Place: Tennessee Phone Number: (865) 380-4700 Website: www.cityofalcoa-tn.gov Facebook:...

  9. K-1435 Wastewater Treatment System for the Toxic Substances Control Act Incinerator Wastewater at the East Tennessee Technology Park, Oak Ridge, TN

    SciTech Connect (OSTI)

    Beck, Ch.A.; Tiepel, E.W.; Swientoniewski, M.D.; Crow, K.R.

    2008-07-01

    This paper will discuss the design and performance of a wastewater treatment system installed to support the operation of a hazardous waste incinerator. The Oak Ridge Toxic Substances Control Act Incinerator (TSCAI), located at the East Tennessee Technology Park (ETTP), is designed and permitted to treat Resource Conservation and Recovery Act (RCRA) wastes including characteristic and listed wastes and polychlorinated biphenyl (PCB)-contaminated mixed waste. The incinerator process generates acidic gases and particulates which consist of salts, metals, and radionuclides. These off-gases from the incinerator are treated with a wet off-gas scrubber system. The recirculated water is continuously purged (blow down), resulting in a wastewater to be treated. Additional water sources are also collected on the site for treatment, including storm water that infiltrates into diked areas and fire water from the incinerator's suppression system. To meet regulatory requirements for discharge, a wastewater treatment system (WWTS) was designed, constructed, and operated to treat these water sources. The WWTS was designed to provide for periodic fluctuation of contaminant concentrations due to various feed streams to the incinerator. Blow down consists of total suspended solids (TSS) and total dissolved solids (TDS), encompassing metals, radionuclide contamination and trace organics. The system design flow rate range is 7.95 to 17 cubic meters per hour (m3/hr) (35 to 75 gallons per minute; gpm). The system is designed with redundancy to minimize time off-line and to reduce impacts to the TSCAI operations. A novel treatment system uses several unit operations, including chemical feed systems, two-stage chemical reaction treatment, micro-filtration, sludge storage and dewatering, neutralization, granular activated carbon, effluent neutralization, and a complete programmable logic controller (PLC) and human-machine interface (HMI) control system. To meet the space requirements and to

  10. K-1435 Wastewater Treatment System for the Toxic Substances Control Act Incinerator Wastewater at the East Tennessee Technology Park, Oak Ridge, TN

    SciTech Connect (OSTI)

    Swientoniewski M.D.

    2008-02-24

    This paper discusses the design and performance of a wastewater treatment system installed to support the operation of a hazardous waste incinerator. The Oak Ridge Toxic Substances Control Act Incinerator (TSCAI), located at the East Tennessee Technology Park (ETTP), is designed and permitted to treat Resource ConservatioN and Recovery Act (RCRA) wastes including characteristic and listed wastes and polychlorinated biphenyl (PCB)-contaminated mixed waste. the incinerator process generates acidic gases and particulates which consist of salts, metals, and radionuclides. These off-gases from the incinerator are treated with a wet off-gas scrubber system. The recirculated water is continuously purged (below down), resulting in a wastewater to be treated. Additional water sources are also collected on the site for treatment, including storm water that infiltrates into diked areas and fire water from the incinerator's suppression system. To meet regulatory requirements for discharge, a wastewater treatment system (WWTS) was designed, constructed, and operated to treat these water sources. The WWTS was designed to provide for periodic fluctuation of contaminant concentrations due to various feed streams to the incinverator. Blow down consists of total suspended solids (TSS) and total dissolved solids (TDS), encompassing metals, radionuclide contamination and trace organics. The system design flow rate range is 35 to 75 gallons per minute (gpm). The system is designed with redundancy to minimize time off-line and to reduce impacts to the TSCAI operations. A novel treatment system uses several unit operations, including chemical feed systems, two-stage chemical reaction treatment, microfiltration, sludge storage and dewatering, neutralization, granular activated carbon, effluent neutralization, and a complete programmable logic controller (PLC) and human-machine interface (HMI) control system. To meet the space requirements and to provide portability of the WWTS to other

  11. Michael Allen; Dongarra, Jack. [University of Tennessee, Knoxville...

    Office of Scientific and Technical Information (OSTI)

    Toward a new metric for ranking high performance computing systems. Heroux, Michael Allen; Dongarra, Jack. University of Tennessee, Knoxville, TN The High Performance Linpack...

  12. Climate Action Champions: Knoxville, TN | Department of Energy

    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

    Climate Action Champions: Knoxville, TN Climate Action Champions: Knoxville, TN Located on the banks of the Tennessee River and in the foothills of the Great Smoky Mountains, the City of Knoxville is a leader in protecting natural resources while promoting economic and social vitality. | Photo courtesy of the City of Knoxville. Located on the banks of the Tennessee River and in the foothills of the Great Smoky Mountains, the City of Knoxville is a leader in protecting natural resources while

  13. TN Energy Efficient Schools Initiative GSHP Program | Department of Energy

    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

    TN Energy Efficient Schools Initiative GSHP Program TN Energy Efficient Schools Initiative GSHP Program Project objectives: Develop methods to make GSHPs more affordable for Tennessee school districts, by innovative design techniques, reducing the up-front cost of the technology, and by providing an innovative method of financing construction. Three school districts have been chosen as test beds for the innovations. gshp_townsend_tn_schools.pdf (170.01 KB) More Documents & Publications

  14. Tennessee State Historic Preservation Programmatic Agreement | Department

    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

    of Energy Tennessee State Historic Preservation Programmatic Agreement Tennessee State Historic Preservation Programmatic Agreement Fully executed programmatic agreement between DOE, State Energy Office and State Historic Preservation Office. state_historic_preservation_programmatic_agreement_tn.pdf (3.7

  15. Marion County, Tennessee: Energy Resources | Open Energy Information

    Open Energy Information (Open El) [EERE & EIA]

    Marion County, Tennessee Jasper, Tennessee Kimball, Tennessee Monteagle, Tennessee New Hope, Tennessee Orme, Tennessee Powells Crossroads, Tennessee South Pittsburg, Tennessee...

  16. Sullivan County, Tennessee: Energy Resources | Open Energy Information

    Open Energy Information (Open El) [EERE & EIA]

    Tennessee Bluff City, Tennessee Bristol, Tennessee Colonial Heights, Tennessee Johnson City, Tennessee Kingsport, Tennessee Spurgeon, Tennessee Walnut Hill, Tennessee...

  17. Carter County, Tennessee: Energy Resources | Open Energy Information

    Open Energy Information (Open El) [EERE & EIA]

    Carter County, Tennessee Central, Tennessee Elizabethton, Tennessee Hunter, Tennessee Johnson City, Tennessee Pine Crest, Tennessee Roan Mountain, Tennessee Watauga, Tennessee...

  18. Hardeman County, Tennessee: Energy Resources | Open Energy Information

    Open Energy Information (Open El) [EERE & EIA]

    Tennessee Grand Junction, Tennessee Hickory Valley, Tennessee Hornsby, Tennessee Middleton, Tennessee Saulsbury, Tennessee Silerton, Tennessee Toone, Tennessee Whiteville,...

  19. File:USDA-CE-Production-GIFmaps-TN.pdf | Open Energy Information

    Open Energy Information (Open El) [EERE & EIA]

    TN.pdf Jump to: navigation, search File File history File usage Tennessee Ethanol Plant Locations Size of this preview: 776 600 pixels. Full resolution (1,650 1,275...

  20. City of Fayetteville, Tennessee (Utility Company) | Open Energy...

    Open Energy Information (Open El) [EERE & EIA]

    search Name: City of Fayetteville Place: Tennessee Phone Number: (931)433-1522 Toll Free 800-379-2534 Website: www.fpu-tn.com Outage Hotline: (931)433-1522 Toll Free...

  1. Deputy Secretary Poneman Attends Ground Breaking at Tennessee Advanced

    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

    Vehicle Battery Plant | Department of Energy Attends Ground Breaking at Tennessee Advanced Vehicle Battery Plant Deputy Secretary Poneman Attends Ground Breaking at Tennessee Advanced Vehicle Battery Plant May 26, 2010 - 12:00am Addthis Smyrna, TN - Today, U.S. Deputy Secretary of Energy Daniel Poneman participated in the groundbreaking ceremony for Nissan North America's advanced battery manufacturing facility in Smyrna, Tennessee. This past January the Department closed a $1.4 billion loan

  2. Lessons-Learned from D and D Activities at the Five Gaseous Diffusion Buildings (K-25, K- 27, K-29, K-31 and K-33) East Tennessee Technology Park, Oak Ridge, TN - 13574

    SciTech Connect (OSTI)

    Kopotic, James D.; Ferri, Mark S.; Buttram, Claude

    2013-07-01

    The East Tennessee Technology Park (ETTP) is the site of five former gaseous diffusion plant (GDP) process buildings that were used to enrich uranium from 1945 to 1985. The process equipment in the original two buildings (K-25 and K-27) was used for the production of highly enriched uranium (HEU), while that in the three later buildings (K-29, K-31 and K-33) produced low enriched uranium (LEU). Equipment was contaminated primarily with uranium and to a lesser extent technetium (Tc). Decommissioning of the GDP process buildings has presented several unique challenges and produced many lessons-learned. Among these is the importance of good, up-front characterization in developing the best demolition approach. Also, chemical cleaning of process gas equipment and piping (PGE) prior to shutdown should be considered to minimize the amount of hold-up material that must be removed by demolition crews. Another lesson learned is to maintain shutdown buildings in a dry state to minimize structural degradation which can significantly complicate characterization, deactivation and demolition efforts. Perhaps the most important lesson learned is that decommissioning GDP process buildings is first and foremost a waste logistics challenge. Innovative solutions are required to effectively manage the sheer volume of waste generated from decontamination and demolition (D and D) of these enormous facilities. Finally, close coordination with Security is mandatory to effectively manage Special Nuclear Material (SNM) and classified equipment issues. (authors)

  3. Washington County, Tennessee: Energy Resources | Open Energy...

    Open Energy Information (Open El) [EERE & EIA]

    4 Climate Zone Subtype A. Places in Washington County, Tennessee Fall Branch, Tennessee Gray, Tennessee Johnson City, Tennessee Jonesborough, Tennessee Midway, Tennessee Oak Grove,...

  4. Blount County, Tennessee: Energy Resources | Open Energy Information

    Open Energy Information (Open El) [EERE & EIA]

    Louisville, Tennessee Maryville, Tennessee Rockford, Tennessee Seymour, Tennessee Townsend, Tennessee Vonore, Tennessee Retrieved from "http:en.openei.orgw...

  5. Hamilton County, Tennessee: Energy Resources | Open Energy Information

    Open Energy Information (Open El) [EERE & EIA]

    Tennessee Lookout Mountain, Tennessee Middle Valley, Tennessee Ooltewah, Tennessee Red Bank, Tennessee Ridgeside, Tennessee Signal Mountain, Tennessee Soddy-Daisy, Tennessee...

  6. The University of Tennessee, Knoxville

    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

    The University of Tennessee, Knoxville Southeast Regional Energy Innovation Workshop Chattanooga, TN * May 23, 2016 Exploring Regional Opportunities in the U.S. for Clean Energy Technology Innovation * Volume 2 4-2 Southeast R egional E nergy I nnovation Workshop R eport Carbon F iber T echnology F acility / P hoto b y O RNL Hosted b y t he U niversity o f T ennessee, K noxville a nd O ak R idge N ational Laboratory --- M ay 2 3, 2 016 Report A uthors * Susanna S utherland, P hD C andidate, T

  7. DOE-NNSA and State of TN Participate in Regional CAPSTONE Exercise | Y-12

    U.S. Department of Energy (DOE) all webpages (Extended Search)

    National Security Complex DOE-NNSA and State of TN ... DOE-NNSA and State of TN Participate in Regional CAPSTONE Exercise Posted: June 2, 2014 - 8:21am The U.S. Department of Energy's National Nuclear Security Administration's Radiological Assistance Program, and the State of Tennessee's Offices of Emergency Management & Division of Radiological Health will participate in a Regional CAPSTONE exercise with activities to be conducted by Field Monitoring Teams in the public sector on

  8. Tennessee: Tennessee's Clean Energy Resources and Economy

    SciTech Connect (OSTI)

    2013-03-25

    This document highlights the Office of Energy Efficiency and Renewable Energy's investments and impacts in the state of Tennessee.

  9. US ESC TN Site Consumption

    Gasoline and Diesel Fuel Update

    ... Yes Yes No No 0% 20% 40% 60% 80% 100% US TN No Car CAR IS PARKED WITHIN 20 FT OF ELECTRICAL OUTLET More highlights from RECS on housing characteristics and energy-related ...

  10. Tennessee/Incentives | Open Energy Information

    Open Energy Information (Open El) [EERE & EIA]

    Yes Tennessee - Green Power Purchase (Tennessee) Green Power Purchasing No Tennessee Solar Panel Installation Specialty and Solar Thermal-Geothermal Licensing (Tennessee)...

  11. East Tennessee Technology Park | Department of Energy

    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

    East Tennessee Technology Park East Tennessee Technology Park East Tennessee Technology Park | September 2012 Aerial View East Tennessee Technology Park | September 2012 Aerial ...

  12. Analysis of natural gases, AL, AR, FL, GA, IL, IN, IA, KY, LA, MD, MI, MS, MO, NJ, NY, NC, OH, PA, TN, VA, and WV; 1951-1991 (for microcomputers). Data file

    SciTech Connect (OSTI)

    Not Available

    1991-01-01

    The U.S. Bureau of Mines diskette contains analysis and related source data for 2,357 natural gas samples collected from miscellaneous states, which include the following states: Alabama, Arkansas (except Arkoma Basin), Florida, Georgia, Illinois, Indiana, Iowa, Kentucky, Louisiana, Maryland, Michigan, Mississippi, Missouri, New Jersey, New York, North Carolina, Ohio, Pennsylvania, Tennessee, Virginia, and West Virginia. All samples were obtained and analyzed as part of the Bureau's investigations of occurrences of helium in natural gases of countries with free market economies. The survey has been conducted since 1917. The analysis contained on the diskette contain the full range of component analysis data. Five files are on the diskette: READ.ME, MISC.TXT, MISC.DBF, USHEANAL.DBF, and BASINCDE.TXT.

  13. Putnam County, Tennessee: Energy Resources | Open Energy Information

    Open Energy Information (Open El) [EERE & EIA]

    Number 4 Climate Zone Subtype A. Places in Putnam County, Tennessee Algood, Tennessee Baxter, Tennessee Cookeville, Tennessee Monterey, Tennessee Retrieved from "http:...

  14. Madison County, Tennessee: Energy Resources | Open Energy Information

    Open Energy Information (Open El) [EERE & EIA]

    3 Climate Zone Subtype A. Places in Madison County, Tennessee Humboldt, Tennessee Jackson, Tennessee Medon, Tennessee Three Way, Tennessee Retrieved from "http:...

  15. Sevier County, Tennessee: Energy Resources | Open Energy Information

    Open Energy Information (Open El) [EERE & EIA]

    Tennessee Pigeon Forge, Tennessee Pittman Center, Tennessee Sevierville, Tennessee Seymour, Tennessee Retrieved from "http:en.openei.orgwindex.php?titleSevierCounty,Tenn...

  16. Loudon County, Tennessee: Energy Resources | Open Energy Information

    Open Energy Information (Open El) [EERE & EIA]

    Farragut, Tennessee Greenback, Tennessee Lenoir City, Tennessee Loudon, Tennessee Philadelphia, Tennessee Retrieved from "http:en.openei.orgwindex.php?titleLoudonCounty,Te...

  17. University of Tennessee | Open Energy Information

    Open Energy Information (Open El) [EERE & EIA]

    Testing Facilities Name University of Tennessee Address University of Tennessee Space Center, 411 B.H. Goethert Parkway Place Tullahoma, Tennessee Zip 37388 Sector Hydro...

  18. Chattanooga, Tennessee: Energy Resources | Open Energy Information

    Open Energy Information (Open El) [EERE & EIA]

    Energy Companies in Chattanooga, Tennessee 3 Utility Companies in Chattanooga, Tennessee 4 References US Recovery Act Smart Grid Projects in Chattanooga, Tennessee Electric Power...

  19. Williamson County, Tennessee: Energy Resources | Open Energy...

    Open Energy Information (Open El) [EERE & EIA]

    4 Climate Zone Subtype A. Registered Energy Companies in Williamson County, Tennessee Eco Energy Inc Places in Williamson County, Tennessee Brentwood, Tennessee Fairview,...

  20. Kentucky Utilities Co (Tennessee) | Open Energy Information

    Open Energy Information (Open El) [EERE & EIA]

    Co (Tennessee) Jump to: navigation, search Name: Kentucky Utilities Co (Tennessee) Place: Tennessee Phone Number: 800-981-0600 Website: lge-ku.comcustomer-serviceou Outage...

  1. Tennessee: Tennessee's Clean Energy Resources and Economy (Brochure)

    SciTech Connect (OSTI)

    Not Available

    2013-03-01

    This document highlights the Office of Energy Efficiency and Renewable Energy's investments and impacts in the state of Tennessee.

  2. Tennessee Nuclear Profile - Power Plants

    U.S. Energy Information Administration (EIA) (indexed site)

    Tennessee nuclear power plants, summer capacity and net generation, 2010" "Plant name...23","9,738",35.1,"Tennessee Valley Authority" "2 Plants 3 Reactors","3,401","27,739",100.0

  3. East Tennessee Technology Park overview

    Energy.gov [DOE]

    This fact sheet provides an overview of OREM’s activities and vision for the East Tennessee Technology Park.

  4. Tennessee Natural Gas Processed in Tennessee (Million Cubic Feet)

    U.S. Energy Information Administration (EIA) (indexed site)

    in Tennessee (Million Cubic Feet) Tennessee Natural Gas Processed in Tennessee (Million Cubic Feet) Decade Year-0 Year-1 Year-2 Year-3 Year-4 Year-5 Year-6 Year-7 Year-8 Year-9 2010's 6,200 6,304 5,721 5,000 4,612 - = No Data Reported; -- = Not Applicable; NA = Not Available; W = Withheld to avoid disclosure of individual company data. Release Date: 10/31/2016 Next Release Date: 11/30/2016 Referring Pages: Natural Gas Processed Tennessee-Tennessee Natural Gas Plant Processing

  5. Energy conservation in Tennessee

    SciTech Connect (OSTI)

    Carlsmith, R.S.

    1981-12-01

    The ratio of energy consumption to gross state product is discussed. This ratio, showing the amount of energy Tennessee uses to produce one dollar's worth of goods and services, has decreased by 4.5% during the period from 1973 to 1979 as compared to 10.4% for the same period for the US as a whole. Changes of energy consumption at the national level since the Arab oil embargo are analyzed. Funding for state conservation programs are discussed. The impact that sharp curtailment of Federal funding will have on some Tennessee programs is noted. (MCW)

  6. DOE - Office of Legacy Management -- Knoxville Iron Co - TN 07

    Office of Legacy Management (LM)

    TN.07-1 Site Disposition: Eliminated - AEC license TN.07-2 Radioactive Materials Handled: Yes Primary Radioactive Materials Handled: Limited Quantities of Uranium Contained in Slag ...

  7. Knoxville, Tennessee: Energy Resources | Open Energy Information

    Open Energy Information (Open El) [EERE & EIA]

    Board Smart Grid Project Registered Research Institutions in Knoxville, Tennessee Solar Labs Registered Policy Organizations in Knoxville, Tennessee Southern Alliance for...

  8. Memphis, Tennessee: Energy Resources | Open Energy Information

    Open Energy Information (Open El) [EERE & EIA]

    Act Smart Grid Projects in Memphis, Tennessee Memphis Light, Gas and Water Division Smart Grid Project Registered Energy Companies in Memphis, Tennessee Biofuels America Inc...

  9. Tennessee Valley Authority | Open Energy Information

    Open Energy Information (Open El) [EERE & EIA]

    Authority Jump to: navigation, search Name: Tennessee Valley Authority Place: Tennessee Phone Number: (865) 632-2101 Website: www.tva.gov Twitter: @tvanewsroom Facebook: https:...

  10. Blountville, Tennessee: Energy Resources | Open Energy Information

    Open Energy Information (Open El) [EERE & EIA]

    You can help OpenEI by expanding it. Blountville is a census-designated place in Sullivan County, Tennessee.1 Registered Energy Companies in Blountville, Tennessee Nu...

  11. Carolina, Tennessee, and Washington.

    U.S. Department of Energy (DOE) all webpages (Extended Search)

    June 2016 The U.S. Department of Energy is responsible for one of the largest nuclear cleanup efforts in the world, managing the legacy of five decades of nuclear weapons production. At its peak, this national weapons complex consisted of 16 major facilities, including vast reservations of land in the States of Idaho, Nevada, South Carolina, Tennessee, and Washington. Nowhere in the DOE Complex is cleanup more challenging than at the Hanford Site in southeastern Washington. Hanford made more

  12. Carolina, Tennessee, and Washington.

    U.S. Department of Energy (DOE) all webpages (Extended Search)

    March 2016 The U.S. Department of Energy is responsible for one of the largest nuclear cleanup efforts in the world, managing the legacy of five decades of nuclear weapons production. At its peak, this national weapons complex consisted of 16 major facilities, including vast reservations of land in the States of Idaho, Nevada, South Carolina, Tennessee, and Washington. Nowhere in the DOE Complex is cleanup more challenging than at the Hanford Site in southeastern Washington. Hanford made more

  13. Carolina, Tennessee, and Washington.

    U.S. Department of Energy (DOE) all webpages (Extended Search)

    April 2016 The U.S. Department of Energy is responsible for one of the largest nuclear cleanup efforts in the world, managing the legacy of five decades of nuclear weapons production. At its peak, this national weapons complex consisted of 16 major facilities, including vast reservations of land in the States of Idaho, Nevada, South Carolina, Tennessee, and Washington. Nowhere in the DOE Complex is cleanup more challenging than at the Hanford Site in southeastern Washington. Hanford made more

  14. Tennessee Regions | U.S. DOE Office of Science (SC)

    Office of Science (SC) [DOE]

    state, county, city, or district. For more information, please visit the Middle School Coach page. Tennessee Region Middle School Regional Tennessee Tennessee Regional Middle...

  15. Tennessee Regions | U.S. DOE Office of Science (SC)

    Office of Science (SC) [DOE]

    for your school's state, county, city, or district. For more information, please visit the High School Coach page. Tennessee Region High School Regional Tennessee Tennessee...

  16. Sumner County, Tennessee: Energy Resources | Open Energy Information

    Open Energy Information (Open El) [EERE & EIA]

    Zone Subtype A. Registered Energy Companies in Sumner County, Tennessee Energy Automation Systems Inc Places in Sumner County, Tennessee Gallatin, Tennessee Goodlettsville,...

  17. Macon County, Tennessee: Energy Resources | Open Energy Information

    Open Energy Information (Open El) [EERE & EIA]

    Number 4 Climate Zone Subtype A. Places in Macon County, Tennessee Lafayette, Tennessee Red Boiling Springs, Tennessee Retrieved from "http:en.openei.orgwindex.php?titleMacon...

  18. White County, Tennessee: Energy Resources | Open Energy Information

    Open Energy Information (Open El) [EERE & EIA]

    Number 4 Climate Zone Subtype A. Places in White County, Tennessee Doyle, Tennessee Sparta, Tennessee Retrieved from "http:en.openei.orgwindex.php?titleWhiteCounty,Tennes...

  19. Tennessee Natural Gas Plant Liquids Production Extracted in Tennessee

    Gasoline and Diesel Fuel Update

    (Million Cubic Feet) Extracted in Tennessee (Million Cubic Feet) Tennessee Natural Gas Plant Liquids Production Extracted in Tennessee (Million Cubic Feet) Decade Year-0 Year-1 Year-2 Year-3 Year-4 Year-5 Year-6 Year-7 Year-8 Year-9 2010's 382 339 - = No Data Reported; -- = Not Applicable; NA = Not Available; W = Withheld to avoid disclosure of individual company data. Release Date: 10/31/2016 Next Release Date: 11/30/2016 Referring Pages: NGPL Production, Gaseous Equivalent

  20. East Tennessee Technology Park | Department of Energy

    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

    East Tennessee Technology Park East Tennessee Technology Park An aerial view of East Tennessee Technology Park prior to demolition. An aerial view of East Tennessee Technology Park prior to demolition. For 40 years, the 2,200-acre East Tennessee Technology Park was home to a complex of facilities that enriched uranium. The site dates back to the World War II Manhattan Project. In addition to defense missions, the plant produced enriched uranium for the commercial nuclear power industry from 1945

  1. Tennessee Nuclear Profile - Power Plants

    U.S. Energy Information Administration (EIA) (indexed site)

    Tennessee nuclear power plants, summer capacity and net generation, 2010" "Plant name/total reactors","Summer capacity (mw)","Net generation (thousand mwh)","Share of State nuclear net generation (percent)","Owner" "Sequoyah Unit 1, Unit 2","2,278","18,001",64.9,"Tennessee Valley Authority" "Watts Bar Nuclear Plant Unit 1","1,123","9,738",35.1,"Tennessee Valley

  2. Regulatory Facility Guide for Tennessee

    SciTech Connect (OSTI)

    Anderson, S.S.; Bock, R.E.; Francis, M.W.; Gove, R.M.; Johnson, P.E.; Kovac, F.M.; Mynatt, J.O.; Rymer, A.C.

    1994-02-28

    This guide provides detailed compilations of international, federal, and state transportation related regulations applicable to shipments originating at or destined to Tennessee facilities. Information on preferred routes is also given.

  3. East Tennessee Technology Park Cleanup

    Office of Energy Efficiency and Renewable Energy (EERE)

    This fact sheet provides an update on all of the current cleanup projects at the site, and it also lists the major projects that were completed at the East Tennessee Technology Park.

  4. Adams, Tennessee: Energy Resources | Open Energy Information

    Open Energy Information (Open El) [EERE & EIA]

    Hide Map This article is a stub. You can help OpenEI by expanding it. Adams is a city in Robertson County, Tennessee. It falls under Tennessee's 6th congressional...

  5. AT-TN: Mr. R. L. Rudolph

    Office of Legacy Management (LM)

    MAR 1 ? 7982 3echW tiational, Inc. AT-TN: Mr. R. L. Rudolph PO Box 350 Oak Ridge, TFi 37830 Gentlemen: CRITERIA FOR REMEDIAL ACTION AT ACID/PUEBLO AND BAY0 CANYONS; REQUEST FOR COST/BENEFIT ANALYSES OF REMEDIAL ACTION OPTIONS AT THE CANYONS Enclosed are several pieces of cqrespondence related to AcldjPueblo * and Bayo Canyons. . . . . . . . . . . . . . First, EP has concurred with the remedial action DATE criteria for the New Mexico sftes that were proposed to them on August 20, 1987 (wfth the

  6. East Tennessee Technology Park by the Numbers | Department of Energy

    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

    East Tennessee Technology Park by the Numbers East Tennessee Technology Park by the Numbers September 13, 2016 - 12:15pm Addthis East Tennessee Technology Park by the Numbers East Tennessee Technology Park by the Numbers East Tennessee Technology Park by the Numbers East Tennessee Technology Park by the Numbers Statistics associated with decontaminating, decommissioning and demolishing the five gaseous diffusion buildings at the East Tennessee Technology Park. Notable figures from the EM

  7. Work plan addendum for David Witherspoon, Inc., 901 Site Building Characterization, Knoxville, Tennessee

    SciTech Connect (OSTI)

    1997-01-01

    This building characterization plan was developed as an addendum to the existing site characterization work plan documents, which are in Appendix B of the David Witherspoon, Inc., (DWI) preliminary remedial investigation (RI)/feasibility study (FS). All building characterization activities will be conducted in accordance with the rules of the Hazardous Substance Remedial Action Program under the direction of the Tennessee Department of Environment and Conservation, Division of Superfund (TN Rules 1200-1-3) and its implementing regulations. Additional rules of the state of Tennessee, Comprehensive Environmental Response, Compensation, and Liability Act of 1980, and the U.S. Environmental Protection Agency guidance were consulted during development of this plan. Activities at the DWI site were concerned with scrap metal processing and scrap metal resale.

  8. National Lab., TN (United States)] 54 ENVIRONMENTAL SCIENCES...

    Office of Scientific and Technical Information (OSTI)

    G.M. Oak Ridge National Lab., TN (United States) 54 ENVIRONMENTAL SCIENCES; GROUND WATER; REMEDIAL ACTION; TECHNETIUM 99; SORPTION; PERTECHNETATES Groundwater used for...

  9. ,"Tennessee Natural Gas Underground Storage Volume (MMcf)"

    U.S. Energy Information Administration (EIA) (indexed site)

    Volume (MMcf)" ,"Click worksheet name or tab at bottom for data" ,"Worksheet Name","Description","# Of Series","Frequency","Latest Data for" ,"Data 1","Tennessee Natural Gas Underground Storage Volume (MMcf)",1,"Monthly","8/2016" ,"Release Date:","10/31/2016" ,"Next Release Date:","11/30/2016" ,"Excel File Name:","n5030tn2m.xls"

  10. Solar Field Gives Tennessee Economy a Boost | Department of Energy

    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

    Field Gives Tennessee Economy a Boost Solar Field Gives Tennessee Economy a Boost September 14, 2010 - 6:24pm Addthis Efficient Energy of Tennessee installs panels at a 1-MW solar farm outside Knoxville in July. | Photo by Harvey Abouelata and courtesy of Efficient Energy of Tennessee Efficient Energy of Tennessee installs panels at a 1-MW solar farm outside Knoxville in July. | Photo by Harvey Abouelata and courtesy of Efficient Energy of Tennessee Lorelei Laird Writer, Energy Empowers Outside

  11. DOE - Office of Legacy Management -- Oak Ridge TN Warehouse Site...

    Office of Legacy Management (LM)

    FACT SHEET This fact sheet provides information about the Oak Ridge, Tennessee, Warehouses Site. This site is managed by the U.S. Department of Energy Office of Legacy Management. ...

  12. Oak Ridge, Tennessee, Warehouses Site Fact Sheet

    Office of Legacy Management (LM)

    Oak Ridge, Tennessee, Warehouses Site. This site is managed by the U.S. Department of Energy Office of Legacy Management under the Formerly Utilized Sites Remedial Action Program. Oak Ridge, Tennessee, Warehouses Site Oak Ridge Warehouses Site Knoxville Oak Ridge 40 75 640 140 75 321 411 70 441 11 129 27 25W M:\LTS\111\0001\10\S03066\S0306600.mxd smithw 09/13/2011 2:35:09 PM 0 10 20 Miles Nashville TENNESSEE Location of the Oak Ridge, Tennessee, Warehouses Site Site Description and History The

  13. Memphis, Tennessee: Energy Resources | Open Energy Information

    Open Energy Information (Open El) [EERE & EIA]

    Tennessee (Utility Company) References US Census Bureau Incorporated place and minor civil division population dataset (All States, all geography) US Census Bureau...

  14. Alamo, Tennessee: Energy Resources | Open Energy Information

    Open Energy Information (Open El) [EERE & EIA]

    Alamo, Tennessee: Energy Resources Jump to: navigation, search Equivalent URI DBpedia Coordinates 35.7847949, -89.1172883 Show Map Loading map... "minzoom":false,"mappingservi...

  15. Independent Oversight Inspection, East Tennessee Technology Park...

    Office of Environmental Management (EM)

    November 2008 Inspection of Environment, Safety, and Health Programs at the East Tennessee Technology Park This report provides the results of an inspection of the environment, ...

  16. Tennessee/Wind Resources | Open Energy Information

    Open Energy Information (Open El) [EERE & EIA]

    Guidebook >> Tennessee Wind Resources WindTurbine-icon.png Small Wind Guidebook * Introduction * First, How Can I Make My Home More Energy Efficient? * Is Wind Energy Practical...

  17. Nashville, Tennessee: Energy Resources | Open Energy Information

    Open Energy Information (Open El) [EERE & EIA]

    Companies in Nashville, Tennessee Agri Energy Inc Nashville Electric Service NES Universal Lighting Technologies References US Census Bureau Incorporated place and minor...

  18. ,"Tennessee Underground Natural Gas Storage - All Operators"

    U.S. Energy Information Administration (EIA) (indexed site)

    ...282016 11:29:54 AM" "Back to Contents","Data 1: Total Underground Storage" ... Natural Gas in Underground Storage (Base Gas) (MMcf)","Tennessee Natural Gas in ...

  19. City of Oak Ridge, Tennessee (Utility Company) | Open Energy...

    Open Energy Information (Open El) [EERE & EIA]

    Tennessee (Utility Company) Jump to: navigation, search Name: City of Oak Ridge Place: Tennessee Phone Number: (865) 425-1803 Website: www.oakridgetn.govdepartment Twitter:...

  20. Knox County, Tennessee: Energy Resources | Open Energy Information

    Open Energy Information (Open El) [EERE & EIA]

    Board Smart Grid Project Registered Research Institutions in Knox County, Tennessee Solar Labs Registered Policy Organizations in Knox County, Tennessee Southern Alliance for...

  1. City of Dickson, Tennessee (Utility Company) | Open Energy Information

    Open Energy Information (Open El) [EERE & EIA]

    Dickson, Tennessee (Utility Company) Jump to: navigation, search Name: City of Dickson Place: Tennessee Phone Number: (615) 446-9051 Website: www.dicksonelectric.com Twitter:...

  2. CX: Categorical Determination-Alcoa Tennessee Automotive Sheet...

    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

    CX: Categorical Determination-Alcoa Tennessee Automotive Sheet Expansion Project CX: Categorical Determination-Alcoa Tennessee Automotive Sheet Expansion Project Categorical ...

  3. Tennessee's 9th congressional district: Energy Resources | Open...

    Open Energy Information (Open El) [EERE & EIA]

    Projects in Tennessee's 9th congressional district Memphis Light, Gas and Water Division Smart Grid Project Registered Energy Companies in Tennessee's 9th congressional district...

  4. Anderson County, Tennessee ASHRAE 169-2006 Climate Zone | Open...

    Open Energy Information (Open El) [EERE & EIA]

    Anderson County, Tennessee ASHRAE 169-2006 Climate Zone Jump to: navigation, search County Climate Zone Place Anderson County, Tennessee ASHRAE Standard ASHRAE 169-2006 Climate...

  5. City of Paris, Tennessee (Utility Company) | Open Energy Information

    Open Energy Information (Open El) [EERE & EIA]

    City of Paris, Tennessee (Utility Company) Jump to: navigation, search Name: City of Paris Place: Tennessee Website: parisbpu.com Facebook: https:www.facebook.com...

  6. CNS, University of Tennessee partner on new fire protection program...

    U.S. Department of Energy (DOE) all webpages (Extended Search)

    Tennessee partner on new fire protection program Posted: September 2, 2015 - 3:55pm Students in the University of Tennessee's Fire Protection Engineering program attend a test...

  7. Tennessee's 3rd congressional district: Energy Resources | Open...

    Open Energy Information (Open El) [EERE & EIA]

    Utility Companies in Tennessee's 3rd congressional district EPB Retrieved from "http:en.openei.orgwindex.php?titleTennessee%27s3rdcongressionaldistrict&oldid204321...

  8. Tennessee's 2nd congressional district: Energy Resources | Open...

    Open Energy Information (Open El) [EERE & EIA]

    in Tennessee's 2nd congressional district Knoxville Utilities Board Retrieved from "http:en.openei.orgwindex.php?titleTennessee%27s2ndcongressionaldistrict&oldid204320...

  9. Davidson County, Tennessee: Energy Resources | Open Energy Information

    Open Energy Information (Open El) [EERE & EIA]

    in Davidson County, Tennessee Agri Energy Inc Nashville Electric Service NES Universal Lighting Technologies Energy Generation Facilities in Davidson County, Tennessee MM...

  10. City of Sparta, Tennessee (Utility Company) | Open Energy Information

    Open Energy Information (Open El) [EERE & EIA]

    Tennessee (Utility Company) Jump to: navigation, search Name: City of Sparta Place: Tennessee Phone Number: (931) 738-2281 Website: spartaelectricsystem.comPubli Outage Hotline:...

  11. Middle Tennessee EMC- Residential Energy Efficiency Rebate Program

    Energy.gov [DOE]

    Middle Tennessee Electric Membership Corporation (MTEMC) and the Tennessee Valley Authority (TVA) offer incentives for residential customers through the eScore Program by:

  12. Recovery Act State Memos Tennessee

    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

    Recovery Act State Memos Tennessee For questions about DOE's Recovery Act activities, please contact the DOE Recovery Act Clearinghouse: 1-888-DOE-RCVY (888-363-7289), Monday through Friday, 9 a.m. to 7 p.m. Eastern Time https://recoveryclearinghouse.energy.gov/contactUs.htm. All numbers and projects listed as of June 1, 2010 TABLE OF CONTENTS RECOVERY ACT SNAPSHOT................................................................................... 1 FUNDING ALLOCATION

  13. Tennessee | National Nuclear Security Administration

    National Nuclear Security Administration (NNSA)

    Tennessee NNSA's systems administrators keep the computers running For Systems Administrator (SysAdmin) Day, meet some of the men & women keeping NNSA going. Thanks for all you do! Michelle Swinkels, Senior Systems and Network Technologist at NNSA's Lawrence Livermore National Laboratory What excites you about your work for NNSA? I'... Klotz visits Y-12 to see progress on new projects and ongoing work on NNSA's national security missions Last week, NNSA Administrator Lt. Gen. Frank Klotz

  14. P.O. Box 117, Oak Ridge, TN 37831

    U.S. Department of Energy (DOE) all webpages (Extended Search)

    Box 117, Oak Ridge, TN 37831 g (865) 241-8893 g IVsurveys@orau.org On the Web: www.orau.orgenvironmental-assessments-health-physics Oak Ridge Associated Universities (ORAU) is a...

  15. University of Tennessee | National Nuclear Security Administration

    National Nuclear Security Administration (NNSA)

    University of Tennessee Materials Science: the science of everything Y-12 Senior Metallurgist Steven Dekanich and NASA Materials Science Branch Chief Steve McDanels teamed up to lead a weeklong materials science camp that took at the University of Tennessee in Knoxville. The camp, which has been held since 2004, was jointly sponsored by Consolidated Nuclear Services

  16. Alternative Fuels Data Center: Tennessee Reduces Pollution With Propane

    Alternative Fuels and Advanced Vehicles Data Center

    Hybrid Trolleys Tennessee Reduces Pollution With Propane Hybrid Trolleys to someone by E-mail Share Alternative Fuels Data Center: Tennessee Reduces Pollution With Propane Hybrid Trolleys on Facebook Tweet about Alternative Fuels Data Center: Tennessee Reduces Pollution With Propane Hybrid Trolleys on Twitter Bookmark Alternative Fuels Data Center: Tennessee Reduces Pollution With Propane Hybrid Trolleys on Google Bookmark Alternative Fuels Data Center: Tennessee Reduces Pollution With

  17. Benefits of Biofuel Production and Use in Tennessee

    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

    Tennessee is the leading ethanol-producing state in the Southeast. The Bioenergy Technologies Office (BETO) enables the development of novel technologies that Tennessee can use to leverage its existing bioenergy infrastructure and biomass resources to become a leader in advanced biofuels. Tennessee In 2012, Tennessee consumed 340 times more petroleum than it produced. Biofuels produced from local biomass can create jobs and reduce dependence on petroleum. Tennessee's transportation- related

  18. DOE_StrategicPlan_Draft_tn.jpg | OSTI, US Dept of Energy Office of

    Office of Scientific and Technical Information (OSTI)

    Scientific and Technical Information DOE_StrategicPlan_Draft_tn.jpg

  19. Tennessee Valley Electric Coop | Open Energy Information

    Open Energy Information (Open El) [EERE & EIA]

    Electric Coop Place: Tennessee Phone Number: 1-866-925-4916 Website: www.tvec.com Facebook: https:www.facebook.comtveccom Outage Hotline: 1-866-925-4916 References: EIA Form...

  20. Tennessee Natural Gas Repressuring (Million Cubic Feet)

    Gasoline and Diesel Fuel Update

    Repressuring (Million Cubic Feet) Tennessee Natural Gas Repressuring (Million Cubic Feet) Decade Year-0 Year-1 Year-2 Year-3 Year-4 Year-5 Year-6 Year-7 Year-8 Year-9 1960's 0 0 0 ...

  1. Tennessee Valley Authority (Mississippi) | Open Energy Information

    Open Energy Information (Open El) [EERE & EIA]

    Name: Tennessee Valley Authority Place: Mississippi References: Energy Information Administration.1 EIA Form 861 Data Utility Id 18642 This article is a stub. You can help OpenEI...

  2. Harrison, Tennessee: Energy Resources | Open Energy Information

    Open Energy Information (Open El) [EERE & EIA]

    Hide Map This article is a stub. You can help OpenEI by expanding it. Harrison is a census-designated place in Hamilton County, Tennessee.1 References US...

  3. Montgomery County, Tennessee: Energy Resources | Open Energy...

    Open Energy Information (Open El) [EERE & EIA]

    Hide Map This article is a stub. You can help OpenEI by expanding it. Montgomery County is a county in Tennessee. Its FIPS County Code is 125. It is classified as...

  4. Signal Mountain, Tennessee: Energy Resources | Open Energy Information

    Open Energy Information (Open El) [EERE & EIA]

    Hide Map This article is a stub. You can help OpenEI by expanding it. Signal Mountain is a town in Hamilton County, Tennessee. It falls under Tennessee's 3rd...

  5. Harvesting the Sun at the West Tennessee Solar Farm | Department...

    Office of Environmental Management (EM)

    ... Abouelata and courtesy of Efficient Energy of Tennessee Solar Field Gives Tennessee Economy a Boost The Race is On: Clean Energy and New Jobs in America, Starting in Michigan

  6. Tri-State Electric Member Corp (Tennessee) | Open Energy Information

    Open Energy Information (Open El) [EERE & EIA]

    Tri-State Electric Member Corp (Tennessee) Jump to: navigation, search Name: Tri-State Electric Member Corp Place: Tennessee Phone Number: 706-492-3251 Website: www.tsemc.net...

  7. Southwest Tennessee E M C | Open Energy Information

    Open Energy Information (Open El) [EERE & EIA]

    Southwest Tennessee E M C Place: Tennessee Phone Number: 1.888.440.1990 Website: www.stemc.com Twitter: @stemctn Facebook: https:www.facebook.comstemconline Outage Hotline:...

  8. Oliver Springs, Tennessee: Energy Resources | Open Energy Information

    Open Energy Information (Open El) [EERE & EIA]

    article is a stub. You can help OpenEI by expanding it. Oliver Springs is a town in Anderson County and Morgan County and Roane County, Tennessee. It falls under Tennessee's 3rd...

  9. Oak Ridge, Tennessee: Energy Resources | Open Energy Information

    Open Energy Information (Open El) [EERE & EIA]

    This article is a stub. You can help OpenEI by expanding it. Oak Ridge is a city in Anderson County and Roane County, Tennessee. It falls under Tennessee's 3rd congressional...

  10. Red Bank, Tennessee: Energy Resources | Open Energy Information

    Open Energy Information (Open El) [EERE & EIA]

    Hide Map This article is a stub. You can help OpenEI by expanding it. Red Bank is a city in Hamilton County, Tennessee. It falls under Tennessee's 3rd...

  11. The University of Tennessee - Knoxville | OSTI, US Dept of Energy...

    Office of Scientific and Technical Information (OSTI)

    UT's Tennessee Today RSS Feed Follow UT Knoxville on Twitter UT Knoxville on YouTube University of Tennessee, Knoxville is on Facebook Simberloff Wins World's Top Prize for Ecology ...

  12. Alternative Fuels Data Center: Tennessee Transportation Data for

    Alternative Fuels and Advanced Vehicles Data Center

    Alternative Fuels and Vehicles Tennessee Transportation Data for Alternative Fuels and Vehicles to someone by E-mail Share Alternative Fuels Data Center: Tennessee Transportation Data for Alternative Fuels and Vehicles on Facebook Tweet about Alternative Fuels Data Center: Tennessee Transportation Data for Alternative Fuels and Vehicles on Twitter Bookmark Alternative Fuels Data Center: Tennessee Transportation Data for Alternative Fuels and Vehicles on Google Bookmark Alternative Fuels Data

  13. CX: Categorical Determination-Alcoa Tennessee Automotive Sheet Expansion

    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

    Project | Department of Energy CX: Categorical Determination-Alcoa Tennessee Automotive Sheet Expansion Project CX: Categorical Determination-Alcoa Tennessee Automotive Sheet Expansion Project Categorical Determination Alcoa Tennessee Automotive Sheet Expansion Project CX(s) Applied: B1.31 Date: 05/06/2014 Location(s): Alcoa, Tennessee Offices(s): Loan Programs Office More Documents & Publications CX-012188: Categorical Exclusion Determination CX-012189: Categorical Exclusion

  14. Karst subsidence in East Tennessee

    SciTech Connect (OSTI)

    Ketelle, R.H.; Newton, J.G.; Tanner, J.M.

    1988-01-01

    Waste disposal site selection and facility design in regions dominated by carbonate bedrock must carefully consider karst development and the factors which contribute to subsidence activity. The Department of Energy's (DOE) Oak Ridge National Laboratory has completed a three phase study of karst subsidence in East Tennessee to quantify historical subsidence activity. The purpose of the study was to determine the principal factors which cause karst subsidence in the region. Techniques used and results obtained in this study form a basis for more detailed risk assessment at the local scale within the region. As development pressures diminish available land for various uses, risk-based land use decisions must be made to site critical facilities. To fulfill the study objectives a three phase study was designed including, (1) collection of subsidence data and compilation of a database, (2) performance of detailed studies of subsidence in three, two-to-five square-mile areas, and (3) synthesis of data obtained to; quantify the predominant sinkhole collapse dimensions, and identify events prior to subsidence or collapse events which may have caused the event, and estimate the intensity of subsidence as a function of geologic unit within subregional areas of higher and lower subsidence risk. 4 refs., 7 figs., 2 tabs.

  15. DOE - Office of Legacy Management -- W R Grace - Erwin - TN 05

    Office of Legacy Management (LM)

    - Erwin (TN.05) Designated Name: Alternate Name: Location: Evaluation Year: Site Operations: Site Disposition: Radioactive Materials Handled: Primary Radioactive Materials...

  16. Tennessee Natural Gas Processed (Million Cubic Feet)

    U.S. Energy Information Administration (EIA) (indexed site)

    Processed (Million Cubic Feet) Tennessee Natural Gas Processed (Million Cubic Feet) Decade Year-0 Year-1 Year-2 Year-3 Year-4 Year-5 Year-6 Year-7 Year-8 Year-9 1980's 11 1990's 19 26 0 0 0 0 0 0 2010's 6,146 6,200 6,304 5,721 5,000 4,612 - = No Data Reported; -- = Not Applicable; NA = Not Available; W = Withheld to avoid disclosure of individual company data. Release Date: 10/31/2016 Next Release Date: 11/30/2016 Referring Pages: Natural Gas Processed Tennessee Natural Gas Plant Processing

  17. EA-1175: Proposed Title Transfer of East Tennessee Technology Park Land and Facilities, Oak Ridge, Tennessee

    Energy.gov [DOE]

    This EA evaluates the environmental impacts for the proposal to transfer the title of unneeded DOE real property located at the U.S. Department of Energy East Tennessee Technology Park (ETTP) in...

  18. File:EIA-Appalach7-TN-KY-GAS.pdf | Open Energy Information

    Open Energy Information (Open El) [EERE & EIA]

    Appalachian Basin, Kentucky and Tennessee By 2001 Gas Reserve Class Sources Energy Information Administration Authors Samuel H. Limerick; Lucy Luo; Gary Long; David F....

  19. DOE-NNSA and State of TN Participate in Regional CAPSTONE Exercise...

    U.S. Department of Energy (DOE) all webpages (Extended Search)

    and the State of Tennessee's Offices of Emergency Management & Division of Radiological Health will participate in a Regional CAPSTONE exercise with activities to be conducted by...

  20. Knoxville, Tennessee: Solar in Action (Brochure)

    SciTech Connect (OSTI)

    Not Available

    2011-10-01

    This brochure provides an overview of the challenges and successes of Knoxville, TN, a 2008 Solar America City awardee, on the path toward becoming a solar-powered community. Accomplishments, case studies, key lessons learned, and local resource information are given.

  1. Norris-lake-big-ridge-tn1_caption.jpg | OSTI, US Dept of Energy Office of

    Office of Scientific and Technical Information (OSTI)

    Scientific and Technical Information Norris-lake-big-ridge-tn1_caption

  2. SEP Success Story: Harvesting the Sun at the West Tennessee Solar Farm |

    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

    Department of Energy Harvesting the Sun at the West Tennessee Solar Farm SEP Success Story: Harvesting the Sun at the West Tennessee Solar Farm April 18, 2012 - 2:38pm Addthis Deputy Secretary of Energy Daniel Poneman joins officials from Tennessee government agencies and the University of Tennessee at the official opening of the West Tennessee Solar Farm. | Energy Department photo. Deputy Secretary of Energy Daniel Poneman joins officials from Tennessee government agencies and the

  3. Grainger County, Tennessee: Energy Resources | Open Energy Information

    Open Energy Information (Open El) [EERE & EIA]

    Grainger County, Tennessee: Energy Resources Jump to: navigation, search Equivalent URI DBpedia Coordinates 36.3059333, -83.5496566 Show Map Loading map......

  4. CNS partners with The University of Tennessee on new graduate...

    U.S. Department of Energy (DOE) all webpages (Extended Search)

    Pantex Plant and Y-12 employees participate in the CNSUniversity of Tennessee's Fire Protection Engineering program burn class at the Knoxville Fire Department Training Academy...

  5. UNITED STATES ATOMIC ENERGY COMMISSION OAK RIDGE TENNESSEE THE...

    U.S. Department of Energy (DOE) all webpages (Extended Search)

    MDDC 869 UNITED STATES ATOMIC ENERGY COMMISSION OAK RIDGE TENNESSEE THE DIFFRACTION OF NEUTRONS BY CRYSTALLINE POWDERS by E. 0. Wollan C. G. Shull Clinton Laboratories Published ...

  6. America's Veterans to Tennessee Engineers | Y-12 National Security...

    U.S. Department of Energy (DOE) all webpages (Extended Search)

    ... are you interested in becoming a nuclear, chemical, mechanical, electrical or civil engineer? If so, Tennessee wants you Working with the U.S. Department of Energy and...

  7. East Tennessee Technology Park Zones 1 and 2

    Energy.gov [DOE]

    This document explains the cleanup activities and any use limitations for the land surrounding the East Tennessee Technology Park’s Zones 1 and 2.

  8. Tennessee Total Electric Power Industry Net Summer Capacity,...

    U.S. Energy Information Administration (EIA) (indexed site)

    Tennessee" "Energy Source",2006,2007,2008,2009,2010 "Fossil",13051,12974,12999,12982,13517 ... " Other Gases","-","-","-","-","-" "Nuclear",3398,3397,3397,3401,3401 ...

  9. Tennessee Recovery Act State Memo | Department of Energy

    Office of Environmental Management (EM)

    Tennessee has substantial natural resources, including coal and hydroelectric power. The American Recovery & Reinvestment Act (ARRA) is making a meaningful down payment on the ...

  10. Clay County, Tennessee: Energy Resources | Open Energy Information

    Open Energy Information (Open El) [EERE & EIA]

    Tennessee: Energy Resources Jump to: navigation, search Equivalent URI DBpedia Coordinates 36.5701766, -85.56121 Show Map Loading map... "minzoom":false,"mappingservice":"goog...

  11. Polk County, Tennessee: Energy Resources | Open Energy Information

    Open Energy Information (Open El) [EERE & EIA]

    Polk County, Tennessee: Energy Resources Jump to: navigation, search Equivalent URI DBpedia Coordinates 35.1371578, -84.564147 Show Map Loading map... "minzoom":false,"mapping...

  12. Dickson County, Tennessee: Energy Resources | Open Energy Information

    Open Energy Information (Open El) [EERE & EIA]

    Dickson County, Tennessee: Energy Resources Jump to: navigation, search Equivalent URI DBpedia Coordinates 36.1459799, -87.3016132 Show Map Loading map... "minzoom":false,"map...

  13. Enterprise Assessments Review of the East Tennessee Technology...

    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

    The U.S. Department of Energy (DOE) Office of Enterprise Assessments (EA) conducted an independent review of the emergency management program at the East Tennessee Technology Park ...

  14. Tennessee's 6th congressional district: Energy Resources | Open...

    Open Energy Information (Open El) [EERE & EIA]

    Registered Energy Companies in Tennessee's 6th congressional district Energy Automation Systems Inc Murfreesboro Electric Department MED Spider Technologies Retrieved from...

  15. City of Jackson, Tennessee (Utility Company) | Open Energy Information

    Open Energy Information (Open El) [EERE & EIA]

    Jackson Place: Tennessee Phone Number: 731.422.7500 Website: www.jaxenergy.com Facebook: https:www.facebook.comjacksonenergyauthority Outage Hotline: 731.422.7500 References:...

  16. Secretary Chu, NNSA Administrator and the Tennessee Congressional...

    Office of Environmental Management (EM)

    Uranium Materials Facility at Y-12 Secretary Chu, NNSA Administrator and the Tennessee Congressional Delegation Join Local Officials in Dedicating Highly Enriched Uranium ...

  17. City of Memphis, Tennessee (Utility Company) | Open Energy Information

    Open Energy Information (Open El) [EERE & EIA]

    Water) Jump to: navigation, search Name: Memphis City of Place: Memphis, Tennessee References: EIA Form EIA-861 Final Data File for 2010 - File1a1 Energy Information...

  18. Tennessee's 7th congressional district: Energy Resources | Open...

    Open Energy Information (Open El) [EERE & EIA]

    Companies in Tennessee's 7th congressional district Agri Energy Inc Biofuels America Inc Eco Energy Inc Memphis Biofuels LLC Nashville Electric Service NES Ocean Motion...

  19. South Kentucky Rural Electric Coop Corp (Tennessee) | Open Energy...

    Open Energy Information (Open El) [EERE & EIA]

    Electric Coop Corp Place: Tennessee Phone Number: 800-772-4636 Website: www.skrecc.com Twitter: @skrecc Facebook: https:www.facebook.compagesSouth-Kentucky-RECC...

  20. Lookout Mountain, Tennessee: Energy Resources | Open Energy Informatio...

    Open Energy Information (Open El) [EERE & EIA]

    Lookout Mountain, Tennessee: Energy Resources Jump to: navigation, search Equivalent URI DBpedia Coordinates 34.9942422, -85.3494027 Show Map Loading map......

  1. Tennessee's 5th congressional district: Energy Resources | Open...

    Open Energy Information (Open El) [EERE & EIA]

    Tennessee's 5th congressional district Agri Energy Inc Nashville Electric Service NES Universal Lighting Technologies Retrieved from "http:en.openei.orgwindex.php?titleTenness...

  2. Tennessee's 4th congressional district: Energy Resources | Open...

    Open Energy Information (Open El) [EERE & EIA]

    Laboratory Registered Energy Companies in Tennessee's 4th congressional district Big Biodiesel LLC Dogwood Energy LLC Eco Energy Inc Oak Ridge Micro Energy Inc SIAG Aerisyn...

  3. Tennessee Underground Natural Gas Storage Capacity

    U.S. Energy Information Administration (EIA) (indexed site)

    Lower 48 States Alabama Arkansas California Colorado Illinois Indiana Iowa Kansas Kentucky Louisiana Maryland Michigan Minnesota Mississippi Missouri Montana Nebraska New Mexico New York Ohio Oklahoma Oregon Pennsylvania Tennessee Texas Utah Virginia Washington West Virginia Wyoming AGA Producing Region AGA Eastern Consuming Region AGA Western Consuming Region East Region South Central Region Midwest Region Mountain Region Pacific Region Period: Monthly Annual Download Series History Download

  4. B&W Y-12 RCN No. NNSA-46

    National Nuclear Security Administration (NNSA)

    ... THWRA TENNESSEE HAZARDOUS WASTE REDUCTION ACT (THWRA) EP TN CODE ANNOTATED TENNESSEE CODE ANNOTATED EM, EG TN 1200 RULES OF THE TENNESSEE DEPARTMENT OF ENVIRONMENT AND CONSERVATION ...

  5. DE-AC05-00OR22800

    National Nuclear Security Administration (NNSA)

    ... THWRA TENNESSEE HAZARDOUS WASTE REDUCTION ACT (THWRA) EP TN CODE ANNOTATED TENNESSEE CODE ANNOTATED EM, EG TN 1200 RULES OF THE TENNESSEE DEPARTMENT OF ENVIRONMENT AND CONSERVATION ...

  6. Spring 2012 National Transportation Stakeholder Forum Meetings, Tennessee |

    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

    Department of Energy 2 National Transportation Stakeholder Forum Meetings, Tennessee Spring 2012 National Transportation Stakeholder Forum Meetings, Tennessee NTSF Registration Website Save The Date! NTSF Spring 2012 Agenda NTSF Agenda Midwestern Radioactive Materials Transportation Committee Agenda Northeast High-Level Radioactive Waste Transportation Task Force Agenda Transuranic Waste Transportation Working Group Agenda Western Governor's Association Agenda NTSF Presentations Session

  7. City of Bristol, Tennessee (Utility Company) | Open Energy Information

    Open Energy Information (Open El) [EERE & EIA]

    Facebook: https:www.facebook.compagesCity-of-Bristol-TN421681834611100?refhl Outage Hotline: 423-989-5677 References: EIA Form EIA-861 Final Data File for 2010 -...

  8. EA-1640: Transfer of Land and Facilities within the East Tennessee Technology Park and Surrounding Area, Oak Ridge, Tennessee

    Energy.gov [DOE]

    DOE’s Oak Ridge Operations Office issued a final EA and a finding of no significant impact for a proposal to convey DOE property located at the East Tennessee Technology Park and the surrounding area to the Community Reuse Organization of East Tennessee, City of Oak Ridge, other agencies, or private entities for mixed use economic development.Public Comment Opportunities.

  9. Tennessee Renewable Electric Power Industry Statistics

    U.S. Energy Information Administration (EIA) (indexed site)

    Tennessee Primary Renewable Energy Capacity Source Hydro Conventional Primary Renewable Energy Generation Source Hydro Conventional Capacity (megawatts) Value Percent of State Total Total Net Summer Electricity Capacity 21,417 100.0 Total Net Summer Renewable Capacity 2,847 13.3 Geothermal - - Hydro Conventional 2,624 12.3 Solar - - Wind 29 0.1 Wood/Wood Waste 185 0.9 MSW/Landfill Gas 6 * Other Biomass 2 * Generation (thousand megawatthours) Total Electricity Net Generation 82,349 100.0 Total

  10. Tennessee Renewable Electric Power Industry Statistics

    U.S. Energy Information Administration (EIA) (indexed site)

    Tennessee" "Primary Renewable Energy Capacity Source","Hydro Conventional" "Primary Renewable Energy Generation Source","Hydro Conventional" "Capacity (megawatts)","Value","Percent of State Total" "Total Net Summer Electricity Capacity",21417,100 "Total Net Summer Renewable Capacity",2847,13.3 " Geothermal","-","-" " Hydro Conventional",2624,12.3 "

  11. Spectroscopic and ITC study of the conformational change upon Ca{sup 2+}-binding in TnC C-lobe and TnI peptide complex from Akazara scallop striated muscle

    SciTech Connect (OSTI)

    Yumoto, Fumiaki; Tanaka, Hiroyuki; Nagata, Koji; Miyauchi, Yumiko; Miyakawa, Takuya; Ojima, Takao; Tanokura, Masaru

    2008-04-25

    Akazara scallop (Chlamys nipponensis akazara) troponin C (TnC) of striated adductor muscle binds only one Ca{sup 2+} ion at the C-terminal EF-hand motif (Site IV), but it works as the Ca{sup 2+}-dependent regulator in adductor muscle contraction. In addition, the scallop troponin (Tn) has been thought to regulate muscle contraction via activating mechanisms that involve the region spanning from the TnC C-lobe (C-lobe) binding site to the inhibitory region of the TnI, and no alternative binding of the TnI C-terminal region to TnC because of no similarity between second TnC-binding regions of vertebrate and the scallop TnIs. To clarify the Ca{sup 2+}-regulatory mechanism of muscle contraction by scallop Tn, we have analyzed the Ca{sup 2+}-binding properties of the complex of TnC C-lobe and TnI peptide, and their interaction using isothermal titration microcalorimetry, nuclear magnetic resonance, circular dichroism, and gel filtration chromatography. The results showed that single Ca{sup 2+}-binding to the Site IV leads to a structural transition not only in Site IV but also Site III through the structural network in the C-lobe of scallop TnC. We therefore assumed that the effect of Ca{sup 2+}-binding must lead to a change in the interaction mode between the C-lobe of TnC and the TnI peptide. The change should be the first event of the transmission of Ca{sup 2+} signal to TnI in Tn ternary complex.

  12. Brownfield to Brightfield Initiative in Oak Ridge, TN - 12346

    SciTech Connect (OSTI)

    Hough, Gil; Fairless, Chad

    2012-07-01

    Experience characterizing, permitting, and restoring 'Brownfield' sites-government or industrial sites with restricted future use due to the presence or potential presence of hazardous substances, pollutants, or contaminants-is being leveraged to identify opportunities for redevelopment into solar power generating facilities which, in this context, are called 'Brightfields'. Brownfield sites offer the expansive land necessary for large photovoltaic (PV) solar farms, but require an in-depth working knowledge of complicated regulatory restrictions and environmental constraints to develop them. As a part of the effort to identify opportunities for redevelopment of Brownfield sites for solar applications, a technical guide, was composed specifically for the development of solar generation on restricted use sites. The basis of the technical guide gives specific consideration to environmental requirements and installation methods breaking that into three areas for assessing: 1) levels of contamination, 2) ground penetration requirements, and 3) the requirements for aesthetics and maintenance. Brightfield projects are underway to support the technical guide and expand re-industrialization efforts for the former DOE Gaseous Diffusion Plant in Oak Ridge, TN. There are exciting opportunities to turn Brownfields into Brightfield solar energy solutions for meeting the future renewable energy needs of our country. Brownfields that offer the large surface area required for solar PV farms coupled with the technical guide for the installation of solar farms on restricted use sites supports efforts to develop the solar capacities and expertise to tap this future market. The initial projects designed following the technical guide will provide verification of the installation requirements and beneficial reuse of restricted use sites. (authors)

  13. Campbell County, Tennessee: Energy Resources | Open Energy Information

    Open Energy Information (Open El) [EERE & EIA]

    Hide Map This article is a stub. You can help OpenEI by expanding it. Campbell County is a county in Tennessee. Its FIPS County Code is 013. It is classified as...

  14. Tennessee Natural Gas Underground Storage Volume (Million Cubic...

    Annual Energy Outlook

    Underground Storage Volume (Million Cubic Feet) Tennessee Natural Gas Underground Storage Volume (Million Cubic Feet) Year Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec 1997 0 0 ...

  15. Johnson County, Tennessee: Energy Resources | Open Energy Information

    Open Energy Information (Open El) [EERE & EIA]

    Hide Map This article is a stub. You can help OpenEI by expanding it. Johnson County is a county in Tennessee. Its FIPS County Code is 091. It is classified as...

  16. Scott County, Tennessee: Energy Resources | Open Energy Information

    Open Energy Information (Open El) [EERE & EIA]

    Hide Map This article is a stub. You can help OpenEI by expanding it. Scott County is a county in Tennessee. Its FIPS County Code is 151. It is classified as...

  17. Improving Reactor Performance Rose Montgomery The Tennessee Valley...

    U.S. Department of Energy (DOE) all webpages (Extended Search)

    Improving Reactor Performance Rose Montgomery The Tennessee Valley Authority Mark Uhran Oak Ridge National Laboratory April 9, 2013 CASL-U-2013-0034-001 CASL-U-2013-0034-001 ...

  18. OSTIblog Articles in the Tennessee Chamber of Commerce and Industry...

    Office of Scientific and Technical Information (OSTI)

    We are proud to note that OSTI was featured in the Tennessee Chamber of Commerce & Industry'ssummer issue of its newsletter, the Business Insider. The Chamber says that OSTI and ...

  19. Tennessee: Bringing Jobs and Economic Development to Piney Flats

    Energy.gov [DOE]

    By tooling up a manufacturing line in Tennessee, where jobs are created, Diversified Power International, LLC is able to manufacture its product in the United States instead of Taiwan.

  20. Stewart County, Tennessee: Energy Resources | Open Energy Information

    Open Energy Information (Open El) [EERE & EIA]

    Hide Map This article is a stub. You can help OpenEI by expanding it. Stewart County is a county in Tennessee. Its FIPS County Code is 161. It is classified as...

  1. French Broad Elec Member Corp (Tennessee) | Open Energy Information

    Open Energy Information (Open El) [EERE & EIA]

    French Broad Elec Member Corp Place: Tennessee Phone Number: (828)649-2051 or (828)688-4815 or (800)222-6190 or (828)682-6121 Website: www.frenchbroademc.com Twitter:...

  2. Jackson County, Tennessee: Energy Resources | Open Energy Information

    Open Energy Information (Open El) [EERE & EIA]

    Hide Map This article is a stub. You can help OpenEI by expanding it. Jackson County is a county in Tennessee. Its FIPS County Code is 087. It is classified as...

  3. Moore County, Tennessee: Energy Resources | Open Energy Information

    Open Energy Information (Open El) [EERE & EIA]

    Hide Map This article is a stub. You can help OpenEI by expanding it. Moore County is a county in Tennessee. Its FIPS County Code is 127. It is classified as...

  4. City of Memphis, Tennessee (Utility Company) | Open Energy Information

    Open Energy Information (Open El) [EERE & EIA]

    Water Division) Jump to: navigation, search Name: Memphis City of Place: Memphis, Tennessee References: EIA Form EIA-861 Final Data File for 2010 - File1a1 Energy Information...

  5. Anderson County, Tennessee: Energy Resources | Open Energy Information

    Open Energy Information (Open El) [EERE & EIA]

    Hide Map This article is a stub. You can help OpenEI by expanding it. Anderson County is a county in Tennessee. Its FIPS County Code is 001. It is classified as...

  6. Smith County, Tennessee: Energy Resources | Open Energy Information

    Open Energy Information (Open El) [EERE & EIA]

    Hide Map This article is a stub. You can help OpenEI by expanding it. Smith County is a county in Tennessee. Its FIPS County Code is 159. It is classified as...

  7. Hickman County, Tennessee: Energy Resources | Open Energy Information

    Open Energy Information (Open El) [EERE & EIA]

    Hide Map This article is a stub. You can help OpenEI by expanding it. Hickman County is a county in Tennessee. Its FIPS County Code is 081. It is classified as...

  8. Perry County, Tennessee: Energy Resources | Open Energy Information

    Open Energy Information (Open El) [EERE & EIA]

    Hide Map This article is a stub. You can help OpenEI by expanding it. Perry County is a county in Tennessee. Its FIPS County Code is 135. It is classified as...

  9. Henry County, Tennessee: Energy Resources | Open Energy Information

    Open Energy Information (Open El) [EERE & EIA]

    Hide Map This article is a stub. You can help OpenEI by expanding it. Henry County is a county in Tennessee. Its FIPS County Code is 079. It is classified as...

  10. Deputy Secretary Poneman Attends Ground Breaking at Tennessee...

    Energy Savers

    Nissan plans to use the proceeds from the loan to produce its all-electric vehicle, the LEAF, at its existing Smyrna, Tennessee plant. Nissan will offer electric vehicles to fleet ...

  11. Tennessee Natural Gas Withdrawals from Gas Wells (Million Cubic...

    U.S. Energy Information Administration (EIA) (indexed site)

    Gas Wells (Million Cubic Feet) Tennessee Natural Gas Withdrawals from Gas Wells (Million Cubic Feet) Year Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec 1991 0 0 0 0 0 0 0 0 0 0 0 ...

  12. Bradley County, Tennessee: Energy Resources | Open Energy Information

    Open Energy Information (Open El) [EERE & EIA]

    Hide Map This article is a stub. You can help OpenEI by expanding it. Bradley County is a county in Tennessee. Its FIPS County Code is 011. It is classified as...

  13. Lewis County, Tennessee: Energy Resources | Open Energy Information

    Open Energy Information (Open El) [EERE & EIA]

    Hide Map This article is a stub. You can help OpenEI by expanding it. Lewis County is a county in Tennessee. Its FIPS County Code is 101. It is classified as...

  14. Integrated solid waste management of Sevierville, Tennessee

    SciTech Connect (OSTI)

    1995-11-01

    The subject document reports the results of an in-depth investigation of the fiscal year 1992 cost of the City of Sevierville, Tennessee integrated municipal solid waste management (IMSWM) system, the energy consumed to operate the system, and the environmental performance requirements for each of the system`s waste-processing and disposal facilities. Actual data from records kept by participants is reported in this document. Every effort was made to minimize the use of assumptions, and no attempt is made to interpret the data reported. Analytical approaches are documented so that interested analysts may perform manipulation or further analysis of the data. As such, the report is a reference document for MSW management professionals who are interested in the actual costs and energy consumption for a one-year period, of an operating IMSWM systems.

  15. Tennessee Renewable Electric Power Industry Statistics

    Gasoline and Diesel Fuel Update

    Commercial Consumers (Number of Elements) Tennessee Natural Gas Number of Commercial Consumers (Number of Elements) Decade Year-0 Year-1 Year-2 Year-3 Year-4 Year-5 Year-6 Year-7 Year-8 Year-9 1980's 77,104 81,159 84,040 1990's 88,753 89,863 91,999 94,860 97,943 101,561 103,867 105,925 109,772 112,978 2000's 115,691 118,561 120,130 131,916 125,042 124,755 126,970 126,324 128,007 127,704 2010's 127,914 128,969 130,139 131,091 131,027 132,392 - = No Data Reported; -- = Not Applicable; NA = Not

  16. Y-12 and East TN Public Broadcasting System ? A Nuclear Family...

    U.S. Department of Energy (DOE) all webpages (Extended Search)

    - A Nuclear Family Video Miniseries The fourth and final episode of A Nuclear Family: Y-12 National Security Complex documentary film miniseries is complete and East TN PBS is...

  17. Secretary Chu, NNSA Administrator and the Tennessee Congressional

    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

    Delegation Join Local Officials in Dedicating Highly Enriched Uranium Materials Facility at Y-12 | Department of Energy and the Tennessee Congressional Delegation Join Local Officials in Dedicating Highly Enriched Uranium Materials Facility at Y-12 Secretary Chu, NNSA Administrator and the Tennessee Congressional Delegation Join Local Officials in Dedicating Highly Enriched Uranium Materials Facility at Y-12 March 22, 2010 - 12:00am Addthis OAK RIDGE, Tenn. - Secretary of Energy Steven Chu

  18. Energy Department Awards $6 Million to Universities in Tennessee and

    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

    Virginia to Advance Master's and Doctoral Training in Power Electronics | Department of Energy Million to Universities in Tennessee and Virginia to Advance Master's and Doctoral Training in Power Electronics Energy Department Awards $6 Million to Universities in Tennessee and Virginia to Advance Master's and Doctoral Training in Power Electronics October 8, 2015 - 1:00pm Addthis The U.S. Department of Energy (DOE) today announced the two universities selected to receive nearly $6 million to

  19. EERE Success Story-Tennessee, Pennsylvania: Porous Power Technologies

    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

    Improves Lithium Ion Battery, Wins R&D 100 Award | Department of Energy Tennessee, Pennsylvania: Porous Power Technologies Improves Lithium Ion Battery, Wins R&D 100 Award EERE Success Story-Tennessee, Pennsylvania: Porous Power Technologies Improves Lithium Ion Battery, Wins R&D 100 Award August 19, 2013 - 2:16pm Addthis Porous Power Technologies, partnered with Oak Ridge National Laboratory (ORNL), developed SYMMETRIX HPX-F, a nanocomposite separator for improved lithium-ion

  20. Tennessee-based IAC Helps Manufacturer Become More Energy Efficient |

    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

    Department of Energy Tennessee-based IAC Helps Manufacturer Become More Energy Efficient Tennessee-based IAC Helps Manufacturer Become More Energy Efficient November 14, 2011 - 12:22pm Addthis April Saylor April Saylor Former Digital Outreach Strategist, Office of Public Affairs What does this mean for me? With 50+ assessments and 500+ total recommendations made, this IAC's recommendations could save the average manufacturer evaluated an average $118,636 in electrical, natural gas, waste and

  1. CNS shares green initiatives with Tennessee businesses | Y-12 National

    U.S. Department of Energy (DOE) all webpages (Extended Search)

    Security Complex shares green ... CNS shares green initiatives with Tennessee businesses Posted: October 17, 2014 - 2:17pm The Y-12 Sustainability and Stewardship Program is used to sharing lessons learned with its fellow National Nuclear Security Administration sites peers, so when a lead member of the Tennessee Department of Environment and Conservation asked Consolidated Nuclear Security, LLC to host a workshop shortly after its contract transition for other companies in the area, CNS

  2. Summary - Environmental Management Waste Management Facility (EMWMF) at Oak Ridge, TN

    Office of Environmental Management (EM)

    Oak Ridge, TN EM Project: EM Waste Management Facility ETR Report Date: February 2008 ETR-11 United States Department of Energy Office of Environmental Management (DOE-EM) External Technical Review of Environmental Management Waste Management Facility (EMWMF) at Oak Ridge, TN Why DOE-EM Did This Review The Environmental Management Waste Management Facility (EMWMF) is a land disposal facility for wastes generated by environmental restoration activities being conducted at the US Department of

  3. Summary - Major Risk Factors Integrated Facility Disposition Project (IFDP) Oak Ridge, TN

    Office of Environmental Management (EM)

    & ORNL, Oak Ridge, TN EM Project: Integrated Facility Disposition Project (IFDP) ETR Report Date: August 2008 ETR-15 United States Department of Energy Office of Environmental Management (DOE-EM) External Technical Review of the Major Risk Factors Integrated Facility Disposition Project (IFDP) Oak Ridge, TN Why DOE-EM Did This Review Approximately two million pounds of mercury are unaccounted for at Y-12 and mercury contamination has been detected in both soils and groundwater. The IFDP will

  4. INDEPENDENT VERIFICATION SURVEY REPORT FOR ZONE 1 OF THE EAST TENNESSEE TECHNOLOGY PARK IN OAK RIDGE, TENNESSEE

    SciTech Connect (OSTI)

    King, David A.

    2012-08-16

    Oak Ridge Associated Universities (ORAU) conducted in-process inspections and independent verification (IV) surveys in support of DOE's remedial efforts in Zone 1 of East Tennessee Technology Park (ETTP) in Oak Ridge, Tennessee. Inspections concluded that the remediation contractor's soil removal and survey objectives were satisfied and the dynamic verification strategy (DVS) was implemented as designed. Independent verification (IV) activities included gamma walkover surveys and soil sample collection/analysis over multiple exposure units (EUs).

  5. Germanium subcells for multijunction GaInP/GaInAs/Ge solar cells

    SciTech Connect (OSTI)

    Kalyuzhnyy, N. A.; Gudovskikh, A. S.; Evstropov, V. V.; Lantratov, V. M.; Mintairov, S. A.; Timoshina, N. Kh.; Shvarts, M. Z.; Andreev, V. M.

    2010-11-15

    Photovoltaic converters based on n-GaInP/n-p-Ge heterostructures grown by the OMVPE under different conditions of formation of the p-n junction are studied. The heterostructures are intended for use as narrow-gap subcells of the GaInP/GaInAs/Ge three-junction solar cells. It is shown that, in Ge p-tn junctions, along with the diffusion mechanism, the tunneling mechanism of the current flow exists; therefore, the two-diode electrical equivalent circuit of the Ge p-n junction is used. The diode parameters are determined for both mechanisms from the analysis of both dark and 'light' current-voltage dependences. It is shown that the elimination of the component of the tunneling current allows one to increase the efficiency of the Ge subcell by {approx}1% with conversion of nonconcentrated solar radiation. The influence of the tunneling current on the efficiency of the Ge-based devices can be in practice reduced to zero at photogenerated current density of {approx}1.5 A/cm{sup 2} due to the use of the concentrated solar radiation.

  6. Tennessee: Da Vinci Fuel-in-Oil Reduces Emissions, Wins R&D 100...

    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

    Tennessee: Da Vinci Fuel-in-Oil Reduces Emissions, Wins R&D 100 Award Tennessee: Da Vinci Fuel-in-Oil Reduces Emissions, Wins R&D 100 Award August 19, 2013 - 5:07pm Addthis...

  7. EERE Success Story-Tennessee: Da Vinci Fuel-in-Oil Reduces Emissions...

    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

    Tennessee: Da Vinci Fuel-in-Oil Reduces Emissions, Wins R&D 100 Award EERE Success Story-Tennessee: Da Vinci Fuel-in-Oil Reduces Emissions, Wins R&D 100 Award August 19, 2013 - ...

  8. Tennessee: Da Vinci Fuel-in-Oil Reduces Emissions, Wins R&D 100...

    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

    Tennessee: Da Vinci Fuel-in-Oil Reduces Emissions, Wins R&D 100 Award Tennessee: Da Vinci Fuel-in-Oil Reduces Emissions, Wins R&D 100 Award August 19, 2013 - 5:07pm Addthis ...

  9. Recommendation 170: Remedial Investigation/Feasibility Study for East Tennessee Technology Park

    Energy.gov [DOE]

    The ORSSAB Recommendation to DOE on a Remedial Investigation/Feasibility Study for East Tennessee Technology Park.

  10. OSTIblog Articles in the Tennessee Chamber of Commerce and Industry Topic |

    Office of Scientific and Technical Information (OSTI)

    OSTI, US Dept of Energy Office of Scientific and Technical Information Tennessee Chamber of Commerce and Industry Topic TENNESSEE CHAMBER OF COMMERCE & INDUSTRY LAUDS OSTI by Kate Bannan 30 Jun, 2011 in Science Communications 4367 header_chamber.gif TENNESSEE CHAMBER OF COMMERCE & INDUSTRY LAUDS OSTI Read more about 4367 We are proud to note that OSTI was featured in the Tennessee Chamber of Commerce & Industry'ssummer issue of its newsletter, the Business Insider. The Chamber

  11. Transition Plan for the K-1203 Sewage Treatment Plant, East Tennessee Technology Park, Oak Ridge, Tennessee

    SciTech Connect (OSTI)

    Hoffmeister J.

    2008-10-05

    The K-1203 Sewage Treatment Plant (STP) was previously used to treat and process all sanitary sewage waste from the East Tennessee Technology Park (ETTP). The plant was shut down on May 29, 2008 as a result of the transition of sewage treatment for ETTP to the City of Oak Ridge. The City of Oak Ridge expanded the Rarity Ridge Sewage Treatment Plant (RRSTP) to include capacity to treat the waste from the ETTP and the Community Reuse Organization of East Tennessee (CROET) constructed a new ETTP lift station and force main to RRSTP. In preparation for the shutdown of K-1203, the US Department of Energy (DOE) in conjunction with Operation Management International (OMI) developed a shut down plan to outline actions that need to occur prior to the transition of the facility to Bechtel Jacob Company, LLC (BJC) for decontamination and demolition (D and D). This plan outlines the actions, roles, and responsibilities for BJC in order to support the transition of the K-1203 STP from OMI to the BJC Surveillance and Maintenance (S and M) and D and D programs. The D and D of the K-1203 Facilities is planned under the Comprehensive Environmental Response, Compensation, and Liability Act Remaining Facilities D and D Action Memorandum in the Balance of Site-Utilities D and D Subproject in fiscal year (FY) 2014.

  12. Tennessee Valley and Eastern Kentucky Wind Working Group

    SciTech Connect (OSTI)

    Katie Stokes

    2012-05-03

    In December 2009, the Southern Alliance for Clean Energy (SACE), through a partnership with the Appalachian Regional Commission, EKPC, Kentucky's Department for Energy Development and Independence, SACE, Tennessee's Department of Environment and Conservation, and TVA, and through a contract with the Department of Energy, established the Tennessee Valley and Eastern Kentucky Wind Working Group (TVEKWWG). TVEKWWG consists of a strong network of people and organizations. Working together, they provide information to various organizations and stakeholders regarding the responsible development of wind power in the state. Members include representatives from utility interests, state and federal agencies, economic development organizations, non-government organizations, local decision makers, educational institutions, and wind industry representatives. The working group is facilitated by the Southern Alliance for Clean Energy. TVEKWWG supports the Department of Energy by helping educate and inform key stakeholders about wind energy in the state of Tennessee.

  13. Summary - Mitigation and Remediation of Mercury Contamination at the Y-12 Plant, Oak Ridge, TN

    Office of Environmental Management (EM)

    Oak Ridge, TN EM Project: Mitigation/Remediation of Hg ETR Report Date: April 2008 ETR-13 United States Department of Energy Office of Environmental Management (DOE-EM) External Technical Review of the Mitigation and Remediation of Mercury Contamination at the Y-12 Plant, Oak Ridge, TN Why DOE-EM Did This Review From 1953 to 1983, ~240,000 pounds of mercury (Hg) were released to the East Fork Popular Creek during the operation of the Y-12 Plant. In 1963, direct systematic releases of mercury

  14. TEAM CUMBERLAND Cool Springs Marriott 700 Cool Springs Boulevard, Franklin, TN

    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

    Cool Springs Marriott 700 Cool Springs Boulevard, Franklin, TN October 12, 2016 On Tuesday, October 11 th , Team Cumberland attendees are invited to gather in the lobby at 5:45 PM CT prior to traveling to a Dutch-treat group dinner at Cool Springs Brewery, 600 Frazier Drive, Suite 125, Franklin, TN. Reservations are at 6:00 CT. The meeting on Wednesday, October 12 th , begins at 8:00 AM CT and should conclude by 12:30 PM CT. The meeting will be held in the Carothers Room right off the main

  15. Tennessee Natural Gas Number of Oil Wells (Number of Elements)

    U.S. Energy Information Administration (EIA) (indexed site)

    Oil Wells (Number of Elements) Tennessee Natural Gas Number of Oil Wells (Number of Elements) Decade Year-0 Year-1 Year-2 Year-3 Year-4 Year-5 Year-6 Year-7 Year-8 Year-9 2010's 52 75 NA NA NA - = No Data Reported; -- = Not Applicable; NA = Not Available; W = Withheld to avoid disclosure of individual company data. Release Date: 10/31/2016 Next Release Date: 11/30/2016 Referring Pages: Number of Gas Producing Oil Wells Number of Gas Producing Oil Wells (Summary) Tennessee Natural Gas Summ

  16. Tennessee Natural Gas Plant Liquids Production (Million Cubic Feet)

    U.S. Energy Information Administration (EIA) (indexed site)

    Liquids Production (Million Cubic Feet) Tennessee Natural Gas Plant Liquids Production (Million Cubic Feet) Decade Year-0 Year-1 Year-2 Year-3 Year-4 Year-5 Year-6 Year-7 Year-8 Year-9 2000's 0 0 0 2010's 506 516 501 488 382 339 - = No Data Reported; -- = Not Applicable; NA = Not Available; W = Withheld to avoid disclosure of individual company data. Release Date: 10/31/2016 Next Release Date: 11/30/2016 Referring Pages: NGPL Production, Gaseous Equivalent Tennessee Natural Gas Plant Processing

  17. Science.gov, Geothermal Energy Technology exhibits at Tennessee Valley

    Office of Scientific and Technical Information (OSTI)

    Corridor Summit | OSTI, US Dept of Energy Office of Scientific and Technical Information gov, Geothermal Energy Technology exhibits at Tennessee Valley Corridor Summit Back to the OSTI News Listing for 2006 OSTI highlighted Science.gov and the Geothermal Energy Technology subject portal at the 16thTennessee Valley Corridor Summit, held at the Chattanooga Convention Center May 31 to June 1. Science.gov, the nation's "go to" Web portal for government science information, is a

  18. EA-1514: Proposed Conveyance of Parcel ED-6 to the City of Oak Ridge, TN

    Energy.gov [DOE]

    This Environmental Assessment was prepared for the conveyance of approximately 336 acres of excess property (i.e., property not needed to fulfill DOE current or foreseeable future requirements) known as Parcel ED-6 to the city of Oak Ridge, TN.

  19. Knoxville, Tennessee A White House Climate Action Champions Case Study

    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

    Knoxville, Tennessee A White House Climate Action Champions Case Study INDEX Executive Summary...............................2 Climate Action Champion....................2 Project Spotlight................................3-5 Co-benefits............................................6 Challenges and lessons learned..........6 Resources & Contacts...........................7 Executive Summary Like many communities, many Knoxville neighborhoods struggle with the lingering symptoms of mid- 20th

  20. Addendum to the East Tennessee Technology Park Site-Wide Residual Contamination Remedial Investigation Work Plan Oak Ridge, Tennessee

    SciTech Connect (OSTI)

    SAIC

    2011-04-01

    The East Tennessee Technology Park Site-Wide Residual Contamination Remedial Investigation Work Plan (DOE 2004) describes the planned fieldwork to support the remedial investigation (RI) for residual contamination at the East Tennessee Technology Park (ETTP) not addressed in previous Comprehensive Environmental Response, Compensation, and Liability Act of 1980 (CERCLA) decisions. This Addendum describes activities that will be conducted to gather additional information in Zone 1 of the ETTP for groundwater, surface water, and sediments. This Addendum has been developed from agreements reached in meetings held on June 23, 2010, August 25, 2010, October 13, 2010, November 13, 2010, December 1, 2010, and January 13, 2011, with representatives of the U. S. Department of Energy (DOE), U. S. Environmental Protection Agency (EPA), and Tennessee Department of Environment and Conservation (TDEC). Based on historical to recent groundwater data for ETTP and the previously completed Sitewide Remedial Investigation for the ETTP (DOE 2007a), the following six areas of concern have been identified that exhibit groundwater contamination downgradient of these areas above state of Tennessee and EPA drinking water maximum contaminant levels (MCLs): (1) K-720 Fly Ash Pile, (2) K-770 Scrap Yard, (3) Duct Island, (4) K-1085 Firehouse Burn/J.A. Jones Maintenance Area, (5) Contractor's Spoil Area (CSA), and (6) Former K-1070-A Burial Ground. The paper presents a brief summary of the history of the areas, the general conceptual models for the observed groundwater contamination, and the data gaps identified.

  1. AMENDMENT OF SOLICITATIONIMODIFICATION OF CONTRACT

    National Nuclear Security Administration (NNSA)

    ... DEPARTMENT OF ENVIRONMENT AND CONSERVATION CP, EP TN 1200-1-13 TENNESSEE INACTIVE ... DEPARTMENT OF ENVIRONMENT AND CONSERVATION CP, EP TN 1200-1-13 TENNESSEE INACTIVE ...

  2. EA-2000: Proposed Land Transfer to Develop a General Aviation Airport at the East Tennessee Technology Park Heritage Center, Oak Ridge, Tennessee

    Energy.gov [DOE]

    DOE is preparing an EA to assess potential environmental impacts of the proposed land transfer to the Metropolitan Knoxville Airport Authority for the development of a general aviation airport at the East Tennessee Technology Park Heritage Center, in Oak Ridge, Tennessee.

  3. Deep Residential Retrofits in East Tennessee

    SciTech Connect (OSTI)

    Boudreaux, Philip R; Hendrick, Timothy P; Christian, Jeffrey E; Jackson, Roderick K

    2012-04-01

    Executive Summary Oak Ridge National Laboratory (ORNL) is furthering residential energy retrofit research in the mixed-humid climate of East Tennessee by selecting 10 homes and guiding the homeowners in the energy retrofit process. The homeowners pay for the retrofits, and ORNL advises which retrofits to complete and collects post-retrofit data. This effort is in accordance with the Department of Energy s Building America program research goal of demonstrating market-ready energy retrofit packages that reduce home energy use by 30 50%. Through this research, ORNL researchers hope to understand why homeowners decide to partake in energy retrofits, the payback of home energy retrofits, and which retrofit packages most economically reduce energy use. Homeowner interviews help the researchers understand the homeowners experience. Information gathered during the interviews will aid in extending market penetration of home energy retrofits by helping researchers and the retrofit industry understand what drives homeowners in making positive decisions regarding these retrofits. This report summarizes the selection process, the pre-retrofit condition, the recommended retrofits, the actual cost of the retrofits (when available), and an estimated energy savings of the retrofit package using EnergyGauge . Of the 10 households selected to participate in the study, only five completed the recommended retrofits, three completed at least one but no more than three of the recommended retrofits, and two households did not complete any of the recommended retrofits. In the case of the two homes that did none of the recommended work, the pre-retrofit condition of the homes and the recommended retrofits are reported. The five homes that completed the recommended retrofits are monitored for energy consumption of the whole house, appliances, space conditioning equipment, water heater, and most of the other circuits with miscellaneous electric loads (MELs) and lighting. Thermal comfort is

  4. EERE Success Story-Tennessee: Bringing Jobs and Economic Development to

    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

    Piney Flats | Department of Energy Tennessee: Bringing Jobs and Economic Development to Piney Flats EERE Success Story-Tennessee: Bringing Jobs and Economic Development to Piney Flats May 1, 2014 - 2:35pm Addthis With grants from the Tennessee Solar Institute (TSI) and Recovery Act funding from EERE's State Energy Program (SEP), Diversified Power International, LLC (DPI) has successfully realized its vision of retaining its technology at home, while also verifiably providing an increase of

  5. The University of Tennessee - Knoxville | OSTI, US Dept of Energy Office of

    Office of Scientific and Technical Information (OSTI)

    Scientific and Technical Information The University of Tennessee - Knoxville Spotlights Home DOE Applauds The University of Tennessee - Knoxville Science and Technical Programs utornl3.png The Bredesen Center for Interdisciplinary Research & Graduate Education brings together extensive complementary resources at the University of Tennessee, Knoxville (UTK)and Oak Ridge National Laboratory (ORNL)to advance science, technology, engineering, and mathematics research of global significance.

  6. CNS, University of Tennessee partner on new fire protection program | Y-12

    U.S. Department of Energy (DOE) all webpages (Extended Search)

    National Security Complex CNS, University of ... CNS, University of Tennessee partner on new fire protection program Posted: September 2, 2015 - 3:55pm Students in the University of Tennessee's Fire Protection Engineering program attend a test burn class at the Knoxville Fire Department Training Academy on Aug. 12. Fire is a significant threat to industrial facilities. To enhance fire protection expertise, Consolidated Nuclear Security LLC has partnered with the University of Tennessee on a

  7. General Atomics (GA) | Princeton Plasma Physics Lab

    U.S. Department of Energy (DOE) all webpages (Extended Search)

    General Atomics (GA) Subscribe to RSS - General Atomics (GA) General Atomics Image: General Atomics (GA) The Scorpion's Strategy: "Catch and Subdue" Read more about The Scorpion's...

  8. Tennessee Natural Gas Gross Withdrawals (Million Cubic Feet per Day)

    Gasoline and Diesel Fuel Update

    Tennessee Natural Gas Gross Withdrawals (Million Cubic Feet per Day) Tennessee Natural Gas Gross Withdrawals (Million Cubic Feet per Day) Year Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec 2006 7 7 7 7 6 6 7 8 8 8 8 8 2007 10 10 10 10 10 10 11 11 11 12 12 12 2008 12 12 12 12 11 11 13 13 14 14 15 15 2009 14 14 14 14 13 13 15 15 16 16 17 17 2010 13 13 13 13 13 12 14 15 15 15 16 16 2011 13 13 12 12 12 12 14 14 14 14 15 15 2012 16 16 16 16 16 16 16 16 16 16 16 16 2013 15 15 15 15 15 15 15 15 15 15

  9. Microsoft Word - DOE-ID-14-033 Tennessee EC B3-6.doc

    U.S. Department of Energy (DOE) all webpages (Extended Search)

    Computational and Experimental Study of Radiation Damage Effects in Grade 92 Steel and Alloy 709 - University of Tennessee SECTION B. Project Description The University ...

  10. Solar heating system installed at Jackson, Tennessee. Final report

    SciTech Connect (OSTI)

    1980-10-01

    The solar energy heating system installed at the Coca-Cola Bottling Works in Jackson, Tennessee is described. The system consists of 9480 square feet of Owens-Illinois evacuated tubular solar collectors with attached specular cylindrical reflectors and will provide space heating for the 70,000 square foot production building in the winter, and hot water for the bottle washing equipment the remainder of the year. Component specifications and engineering drawings are included. (WHK)

  11. EERE Success Story-Tennessee: Oak Ridge National Laboratory Optimizes

    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

    Carbon Fiber Production, Reduces Carbon Fiber Costs by 30% | Department of Energy Oak Ridge National Laboratory Optimizes Carbon Fiber Production, Reduces Carbon Fiber Costs by 30% EERE Success Story-Tennessee: Oak Ridge National Laboratory Optimizes Carbon Fiber Production, Reduces Carbon Fiber Costs by 30% January 24, 2014 - 12:00am Addthis The high cost of aerospace-grade carbon fiber (CF) is currently a barrier to widespread commercialization of light-weight, high-pressure hydrogen and

  12. EIS-0152: Iroquois/Tennessee Phase I Pipeline Project

    Energy.gov [DOE]

    The Federal Energy Regulatory Commission prepared this statement to asses the environmental impacts of constructing and operating an interstate natural gas pipeline and associated infrastructure to transport gas from Canada and domestic sources to the New England Market, as proposed by the Iroquois Gas Transmission System and the Tennessee Gas Pipeline Company. The U.S. Department of Energy Office of Fossil Energy was a cooperating agency during statement development and adopted the statement on 9/1/1990.

  13. ITEM NO. SUPPLIES/SERVICES QUANTITY UNIT UNIT PRICE AMOUNT NAME...

    National Nuclear Security Administration (NNSA)

    ... DEPARTMENT OF ENVIRONMENT AND CONSERVATION CP, EP TN 1200-1-13 TENNESSEE INACTIVE ... TENNESSEE CODE ANNOTATED RULES OF THE TENNESSEE DEPARTMENT OF ENVIRONMENT AND CONSERVATION ...

  14. The East Tennessee Technology Park Progress Report for the Tennessee Hazardous Waste Reduction Act for Calendar Year 1999

    SciTech Connect (OSTI)

    Bechtel Jacobs Company LLC

    2000-03-01

    This report is prepared for the East Tennessee Technology Park (formerly the Oak Ridge K-25 Site) (ETTP) in compliance with the ''Tennessee Hazardous Waste Reduction Act of 1990'' (THWRA) (TDEC 1990), Tennessee Code Annotated 68-212-306. Annually, THWRA requires a review of the site waste reduction plan, completion of summary waste reduction information as part of the site's annual hazardous waste reporting, and completion of an annual progress report analyzing and quantifying progress toward THWRA-required waste stream-specific reduction goals. This THWRA-required progress report provides information about ETTP's hazardous waste streams regulated under THWRA and waste reduction progress made in calendar year (CY) 1999. This progress report also documents the annual review of the site plan, ''Oak Ridge Operations Environmental Management and Enrichment Facilities (EMEF) Pollution Prevention Program Plan'', BJC/OR-306/R1 (Bechtel Jacobs Company 199a). In 1996, ETTP established new goal year ratios that extended the goal year to CY 1999 and targeted 50 percent waste stream-specific reduction goals. In CY 1999, these CY 1999 goals were extended to CY 2000 for all waste streams that generated waste in 1999. Of the 70 ETTP RCRA waste streams tracked in this report from base years as early as CY 1991, 51 waste streams met or exceeded their reduction goal based on the CY 1999 data.

  15. The East Tennessee Technology Park Progress Report for the Tennessee Hazardous Waste Reduction Act for Calendar Year 2000

    SciTech Connect (OSTI)

    Bechtel Jacobs Company LLC

    2001-03-01

    This report is prepared for the East Tennessee Technology Park (formerly the Oak Ridge K-25 Site) (ETTP) in compliance with the ''Tennessee Hazardous Waste Reduction Act of 1990'' (THWRA) (TDEC 1990), Tennessee Code Annotated 68-212-306. Annually, THWRA requires a review of the site waste reduction plan, completion of summary waste reduction information as part of the site's annual hazardous waste reporting, and completion of an annual progress report analyzing and quantifying progress toward THWRA-required waste stream-specific reduction goals. This THWRA-required progress report provides information about ETTP's hazardous waste streams regulated under THWRA and waste reduction progress made in calendar year (CY) 2000. This progress report also documents the annual review of the site plan, ''Oak Ridge Operations Environmental Management and Enrichment Facilities (EMEF) Pollution Prevention Program Plan'', BJC/OR-306/R1 (Bechtel Jacobs Company 2000). In 1996, ETTP established new goal year ratios that extended the goal year to CY 1999 and targeted 50 percent waste stream-specific reduction goals. In CY 2000, these goals were extended to CY 2001 for all waste streams that generated waste in 2000. Of the 70 ETTP RCRA waste streams tracked in this report from base years as early as CY 1991, 50 waste streams met or exceeded their reduction goal based on the CY 2000 data.

  16. II United States Government DATE: REPLY TO Al-TN OF: SUBJECT:

    Office of Legacy Management (LM)

    r.@& * EFG (07-W,' . II United States Government DATE: REPLY TO Al-TN OF: SUBJECT: TO: EM-421 (W. A. W illiams, 903-8149) Authorization for Remedial Action at the Former Baker Brothers Inc. Site, Toledo, Ohio Manager, DOE Oak Ridge Field Office This is to notify you that the Former Baker Brothers, Inc. site in Toledo, Ohio, is designated for remedial action under the Formerly Utilized Sites Remedial Action Program (FUSRAP). This notification does not constitute a FUSRAP baseline change

  17. Criticality safety research at the University of Tennessee-Knoxville

    SciTech Connect (OSTI)

    Dodds, H.L.

    1997-06-01

    A list of seven research projects in nuclear criticality safety being conducted at the University of Tennessee is given. One of the projects is very briefly described. The study of space-dependent kinetics analysis of a hypothetical criticality accident involving an array of bottles containing UO{sub 2}F{sub 2} is being conducted for the US DOE, Oak Ridge National Laboratory, K-25 plant. Preliminary results for power versus time are presented, which indicate that space-time effects are significant after approximately 70 seconds. 2 refs., 1 fig.

  18. Tennessee Natural Gas Lease Fuel Consumption (Million Cubic Feet)

    U.S. Energy Information Administration (EIA) (indexed site)

    Fuel Consumption (Million Cubic Feet) Tennessee Natural Gas Lease Fuel Consumption (Million Cubic Feet) Decade Year-0 Year-1 Year-2 Year-3 Year-4 Year-5 Year-6 Year-7 Year-8 Year-9 1980's 113 153 138 98 93 60 45 1990's 68 41 39 49 44 47 37 45 31 26 2000's 29 48 80 47 46 68 66 109 161 235 2010's 214 231 335 335 278 225 - = No Data Reported; -- = Not Applicable; NA = Not Available; W = Withheld to avoid disclosure of individual company data. Release Date: 10/31/2016 Next Release Date: 11/30/2016

  19. Tennessee Natural Gas Plant Fuel Consumption (Million Cubic Feet)

    U.S. Energy Information Administration (EIA) (indexed site)

    Fuel Consumption (Million Cubic Feet) Tennessee Natural Gas Plant Fuel Consumption (Million Cubic Feet) Decade Year-0 Year-1 Year-2 Year-3 Year-4 Year-5 Year-6 Year-7 Year-8 Year-9 1980's 0 0 0 0 0 0 1990's 6 3 0 0 2000's 0 0 0 0 0 0 0 0 0 0 2010's 148 145 150 142 128 125 - = No Data Reported; -- = Not Applicable; NA = Not Available; W = Withheld to avoid disclosure of individual company data. Release Date: 10/31/2016 Next Release Date: 11/30/2016 Referring Pages: Natural Gas Plant Fuel

  20. Tennessee Renewable Electric Power Industry Net Generation, by Energy Source

    U.S. Energy Information Administration (EIA) (indexed site)

    Tennessee" "Energy Source",2006,2007,2008,2009,2010 "Geothermal","-","-","-","-","-" "Hydro Conventional",7749,4940,5646,10212,8138 "Solar","-","-","-","-","-" "Wind",55,50,50,52,41 "Wood/Wood Waste",698,868,879,862,914 "MSW Biogenic/Landfill Gas",24,19,27,29,23 "Other Biomass",35,33,9,7,11

  1. Tennessee Total Electric Power Industry Net Generation, by Energy Source

    U.S. Energy Information Administration (EIA) (indexed site)

    Tennessee" "Energy Source",2006,2007,2008,2009,2010 "Fossil",61336,61205,57753,42242,46203 " Coal",60498,60237,57058,41633,43670 " Petroleum",160,232,216,187,217 " Natural Gas",664,722,467,409,2302 " Other Gases",14,13,12,12,13 "Nuclear",24679,28700,27030,26962,27739 "Renewables",8559,5910,6611,11162,9125 "Pumped Storage",-668,-704,-739,-650,-721 "Other",5,3,8,1,3

  2. Tennessee Pollution Prevention Partnership | Y-12 National Security Complex

    U.S. Department of Energy (DOE) all webpages (Extended Search)

    Gross Withdrawals (Million Cubic Feet) Tennessee Natural Gas Gross Withdrawals (Million Cubic Feet) Year Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec 1991 165 148 161 153 152 148 150 150 146 159 159 165 1992 157 141 152 146 145 140 142 143 141 152 152 159 1993 147 131 141 135 137 131 134 134 132 143 144 150 1994 176 157 170 162 164 158 160 161 159 172 172 180 1995 161 143 155 149 150 144 147 147 145 157 157 165 1996 137 122 132 126 128 123 147 148 146 158 158 166 1997 122 109 118 113 114 110

  3. CNS helps provide housing to homeless veterans in Tennessee | National

    National Nuclear Security Administration (NNSA)

    Nuclear Security Administration | (NNSA) CNS helps provide housing to homeless veterans in Tennessee Wednesday, January 28, 2015 - 4:19pm Consolidated Nuclear Security's donation of $25,000 to the Helen Ross McNabb Center's Veterans Housing Project served as one of the final building blocks in the $1.83-million effort to provide permanent housing to homeless veterans who have mental illnesses. Late last year, the ribbon was cut on the first apartment building, and the first four homeless

  4. CAD data exchange with Martin Marietta Energy Systems, Inc., Oak Ridge, TN

    SciTech Connect (OSTI)

    Smith, K.L.

    1994-10-01

    This document has been developed to provide guidance in the interchange of electronic CAD data with Martin Marietta Energy Systems, Inc., Oak Ridge, Tennessee. It is not meant to be as comprehensive as the existing standards and specifications, but to provide a minimum set of practices that will enhance the success of the CAD data exchange. It is now a Department of Energy (DOE) Oak Ridge Field Office requirement that Architect-Engineering (A-E) firms prepare all new drawings using a Computer Aided Design (CAD) system that is compatible with the Facility Manager`s (FM) CAD system. For Oak Ridge facilities, the CAD system used for facility design by the FM, Martin Marietta Energy Systems, Inc., is Intregraph. The format for interchange of CAD data for Oak Ridge facilities will be the Intergraph MicroStation/IGDS format.

  5. Effects of Projected Transient Changes in Climate on Tennessee Forests

    SciTech Connect (OSTI)

    Dale, Virginia H; Tharp, M Lynn; Lannom, Karen O.; Hodges, Donald G.

    2010-01-01

    This study examines transient effects of projected climate change on the structure and species composition of forests in Tennessee. The climate change scenarios for 2030 and 2080 were provided by the National Center for Atmospheric Research (NCAR) from three General Circulation Models (GCMs) that simulate the range of potential climate conditions for the state. The precipitation and temperature projections from the three GCMs for 2030 and 2080 were related to changes in the ecoregions by using the monthly record of temperature and precipitation from 1980 to 1997 for each 1 km cell across the state as aggregated into the five ecological provinces. Temperatures are projected to increase in all ecological provinces in all months for all three GCMs for both 2030 and 2080. Precipitation patterns are more complex with one model projecting wetter summers and two models projecting drier summers. The forest ecosystem model LINKAGES was used to simulate conditions in forest stands for the five ecological provinces of Tennessee from 1989 to 2300. These model runs suggest there will be a change in tree diversity and species composition in all ecological provinces with the greatest changes occurring in the Southern Mixed Forest province. Most projections show a decline in total tree biomass followed by recovery as species replacement occurs in stands. The changes in forest biomass and composition, as simulated in this study, are likely to have implications on forest economy, tourism, understory conditions, wildlife habitat, mast provisioning, and other services provided by forest systems.

  6. Indoor nitrogen dioxide in five Chattangooga, Tennessee public housing developments

    SciTech Connect (OSTI)

    Parkhurst, W.J.; Harper, J.P. ); Spengler, J.D.; Fraumeni, L.P.; Majahad, A.M. ); Cropp, J.W. )

    1988-01-01

    This report summarizes an indoor nitrogen dioxide (NO{sub 2}) sampling study conducted during January through March of 1987 in five Chattanooga public housing developments. The origins of this study date to the summer of 1983 when the Piney Woods Community Organization (a citizens action group) expressed concern about toxic industrial air pollution and the effects it might have on their community. In response to these concerns, the Chattanooga-Hamilton County Air Pollution Control Bureau (Bureau) requested assistance from the Tennessee Department of Health and Environment (TDHE) in conducting a community health survey and assistance from the Tennessee Valley Authority (TVA) in conducting a community air quality measurement program. The TDHE community health study did not find any significant differences between the mortality statistics for the Piney Woods community and a demographically similar control group. However, a health survey revealed that Piney Woods residents did not have a statistically significant higher self-reported prevalence of cough, wheezing, phlegm, breathlessness, colds, and respiratory illness.

  7. Investigation of the GaN-on-GaAs interface for vertical power device applications

    SciTech Connect (OSTI)

    Mreke, Janina Uren, Michael J.; Kuball, Martin; Novikov, Sergei V.; Foxon, C. Thomas; Hosseini Vajargah, Shahrzad; Wallis, David J.; Humphreys, Colin J.; Haigh, Sarah J.; Al-Khalidi, Abdullah; Wasige, Edward; Thayne, Iain

    2014-07-07

    GaN layers were grown onto (111) GaAs by molecular beam epitaxy. Minimal band offset between the conduction bands for GaN and GaAs materials has been suggested in the literature raising the possibility of using GaN-on-GaAs for vertical power device applications. I-V and C-V measurements of the GaN/GaAs heterostructures however yielded a rectifying junction, even when both sides of the junction were heavily doped with an n-type dopant. Transmission electron microscopy analysis further confirmed the challenge in creating a GaN/GaAs Ohmic interface by showing a large density of dislocations in the GaN layer and suggesting roughening of the GaN/GaAs interface due to etching of the GaAs by the nitrogen plasma, diffusion of nitrogen or melting of Ga into the GaAs substrate.

  8. CNS donates $10,000 to East Tennessee Children's Hospital | Y-12 National

    U.S. Department of Energy (DOE) all webpages (Extended Search)

    Security Complex donates $10,000 to East ... CNS donates $10,000 to East Tennessee Children's Hospital Posted: February 16, 2016 - 6:50pm Y-12's Site Manager Bill Tindal (right) presents a $10,000 donation to East Tennessee Children's Hospital CEO Keith Goodwin in support of the hospital's capital campaign. Consolidated Nuclear Security recently donated $10,000 to East Tennessee Children's Hospital's capital campaign. The CNS donation will go toward construction of a pre- or post-op room at

  9. TN-68 Spent Fuel Transport Cask Analytical Evaluation for Drop Events

    SciTech Connect (OSTI)

    Shah, M. J.; Klymyshyn, Nicholas A.; Adkins, Harold E.; Koeppel, Brian J.

    2007-03-30

    The U.S. Nuclear Regulatory Commission (NRC) is responsible for licensing commercial spent nuclear fuel transported in casks certified by NRC under the Code of Federal Regulations (10 CFR), Title 10, Part 71 [1]. Both the International Atomic Energy Agency regulations for transporting radioactive materials [2, paragraph 727], and 10 CFR 71.73 require casks to be evaluated for hypothetical accident conditions, which includes a 9-meter (m) (30-ft) drop-impact event onto a flat, essentially unyielding, horizontal surface, in the most damaging orientation. This paper examines the behavior of one of the NRC certified transportation casks, the TN-68 [3], for drop-impact events. The specific area examined is the behavior of the bolted connections in the cask body and the closure lid, which are significantly loaded during the hypothetical drop-impact event. Analytical work to evaluate the NRC-certified TN-68 spent fuel transport cask [3] for a 9-m (30-ft) drop-impact event on a flat, unyielding, horizontal surface, was performed using the ANSYS® [4] and LS DYNA™ [5] finite-element analysis codes. The models were sufficiently detailed, in the areas of bolt closure interfaces and containment boundaries, to evaluate the structural integrity of the bolted connections under 9-m (30-ft) free-drop hypothetical accident conditions, as specified in 10 CFR 71.73. Evaluation of the cask for puncture, caused by a free drop through a distance of 1-m (40-in.) onto a mild steel bar mounted on a flat, essentially unyielding, horizontal surface, required by 10 CFR 71.73, was not included in the current work, and will have to be addressed in the future. Based on the analyses performed to date, it is concluded that, even though brief separation of the flange and the lid surfaces may occur under some conditions, the seals would close at the end of the drop events, because the materials remain elastic during the duration of the event.

  10. DOE Form

    National Nuclear Security Administration (NNSA)

    ... TN DEPT. OF ENVIRONMENT AND CONSERVATION - HAZARDOUS WASTE PROGRAM EP TN 1200 RULES OF THE TENNESSEE DEPARTMENT OF ENVIRONMENT AND CONSERVATION EP, CP TN 1200-1-13 TENNESSEE ...

  11. COR-Y12-12/7/2012-21660 DE-AC05-00OR22800 DOE Form

    National Nuclear Security Administration (NNSA)

    ... TN DEPT. OF ENVIRONMENT AND CONSERVATION - HAZARDOUS WASTE PROGRAM EP TN 1200 RULES OF THE TENNESSEE DEPARTMENT OF ENVIRONMENT AND CONSERVATION EP, CP TN 1200-1-13 TENNESSEE ...

  12. GA SNC Solar | Open Energy Information

    Open Energy Information (Open El) [EERE & EIA]

    GA-SNC Solar Place: Nevada Sector: Solar Product: Nevada-based PV project developer and joint venture of GA-Solar North America and Sierra Nevada Corp. References: GA-SNC...

  13. Honoring 20 years of the Tennessee Valley Coridor | Y-12 National...

    U.S. Department of Energy (DOE) all webpages (Extended Search)

    Honoring 20 years of the ... Honoring 20 years of the Tennessee Valley Coridor The mp4 video format is not supported by this browser. Download video Captions: On Time: 4:58 min. ...

  14. An economic analysis of a monitored retrievable storage site for Tennessee. Final report and appendices

    SciTech Connect (OSTI)

    Fox, W.F.; Mayo, J.W.; Hansen, L.T.; Quindry, K.E.

    1985-12-17

    The United States Department of Energy is charged with the task of identifying potential sites for a Monitored Retrievable Storage (MRS) Facility and reporting the results of its analysis to Congress by January 1986. DOE chose three finalist sites from 11 sites DOE analysts evaluated earlier. All three are in Tennessee, including two in Oak Ridge and one in Trousdale/Smith Counties. This paper is a summary of research undertaken on the economic effects of establishing the MRS facility in Tennessee. All three locations were considered in the analysis, but on some occasions attention is focused on the site preferred by DOE. The research was undertaken by the Center for Business and Economic Research (CBER), College of Business Administration, the University of Tennessee, Knoxville, under contract with the Tennessee Department of Economic and Community Development.

  15. An economic analysis of a monitored retrievable storage site for Tennessee

    SciTech Connect (OSTI)

    Fox, W.F.; Mayo, J.W.; Hansen, L.T.; Quindry, K.E.

    1985-12-17

    The United States Department of Energy is charged with the task of identifying potential sites for a Monitored Retrievable Storage (MRS) Facility and reporting the results of its analysis to Congress by January 1986. DOE chose three finalist sites from 11 sites DOE analysts evaluated earlier. All three are in Tennessee, including two in Oak Ridge and one in Trousdale/Smith Counties. This paper is a summary of research undertaken on the economic effects of establishing the MRS facility in Tennessee. All three locations were considered in the analysis, but on some occasions attention is focused on the site preferred by DOE. The research was undertaken by the Center for Business and Economic Research (CBER), College of Business Administration, the University of Tennessee, Knoxville, under contract with the Tennessee Department of Economic and Community Development.

  16. Tennessee Home to Energy Department's First Net-Zero-Energy Building

    Office of Energy Efficiency and Renewable Energy (EERE)

    Building 3156 stands on the campus of Oak Ridge National Laboratory in Oak Ridge, Tennessee. It's just one of many buildings at the various Energy Department national labs scattered across the country - or so it seems.

  17. Tennessee State Briefing Book for low-level radioactive waste management

    SciTech Connect (OSTI)

    Not Available

    1981-08-01

    The Tennessee State Briefing Book is one of a series of state briefing books on low-level radioactive waste management practices. It has been prepared to assist state and federal agency officials in planning for safe low-level radioactive waste disposal. The report contains a profile of low-level radioactive waste generators in Tennessee. The profile is the result of a survey of NRC licensees in Tennessee. The briefing book also contains a comprehensive assessment of low-level radioactive waste management issues and concerns as defined by all major interested parties including industry, government, the media, and interest groups. The assessment was developed through personal communications with representatives of interested parties, and through a review of media sources. Lastly, the briefing book provides demographic and socioeconomic data and a discussion of relevant government agencies and activities, all of which may impact waste management practices in Tennessee.

  18. Tennessee Natural Gas Input Supplemental Fuels (Million Cubic Feet)

    U.S. Energy Information Administration (EIA) (indexed site)

    Input Supplemental Fuels (Million Cubic Feet) Tennessee Natural Gas Input Supplemental Fuels (Million Cubic Feet) Decade Year-0 Year-1 Year-2 Year-3 Year-4 Year-5 Year-6 Year-7 Year-8 Year-9 1960's 0 0 0 1970's 0 0 0 0 0 0 0 0 0 0 1980's 12 42 90 39 25 36 13 26 36 78 1990's 3 8 12 13 84 33 73 19 4 11 2000's 13 0 1 1 0 0 0 0 0 0 2010's 0 0 0 0 0 0 - = No Data Reported; -- = Not Applicable; NA = Not Available; W = Withheld to avoid disclosure of individual company data. Release Date: 10/31/2016

  19. Tennessee Natural Gas LNG Storage Additions (Million Cubic Feet)

    U.S. Energy Information Administration (EIA) (indexed site)

    Additions (Million Cubic Feet) Tennessee Natural Gas LNG Storage Additions (Million Cubic Feet) Decade Year-0 Year-1 Year-2 Year-3 Year-4 Year-5 Year-6 Year-7 Year-8 Year-9 1980's 1,222 2,508 2,491 977 2,376 2,105 1,766 1,135 2,109 1,879 1990's 3,008 1,522 2,759 2,663 2,985 2,414 2,809 1,875 1,816 2,181 2000's 884 1,606 1,849 1,889 913 1,065 1,391 2,312 2,186 1,867 2010's 1,175 1,688 3,028 2,243 7,227 8,112 - = No Data Reported; -- = Not Applicable; NA = Not Available; W = Withheld to avoid

  20. Tennessee Natural Gas LNG Storage Net Withdrawals (Million Cubic Feet)

    U.S. Energy Information Administration (EIA) (indexed site)

    Net Withdrawals (Million Cubic Feet) Tennessee Natural Gas LNG Storage Net Withdrawals (Million Cubic Feet) Decade Year-0 Year-1 Year-2 Year-3 Year-4 Year-5 Year-6 Year-7 Year-8 Year-9 1980's -1,643 -234 641 -1,245 1,073 -372 71 -93 56 -1,879 1990's 631 -401 -306 -268 106 -621 -1,175 -541 -1,746,367 -824 2000's -1,780 -667 -385 1,071 651 421 -269 -1,552 -1,324 -882 2010's -1,563 189 65 -1,262 -532 648 - = No Data Reported; -- = Not Applicable; NA = Not Available; W = Withheld to avoid disclosure

  1. Tennessee Natural Gas LNG Storage Withdrawals (Million Cubic Feet)

    U.S. Energy Information Administration (EIA) (indexed site)

    Withdrawals (Million Cubic Feet) Tennessee Natural Gas LNG Storage Withdrawals (Million Cubic Feet) Decade Year-0 Year-1 Year-2 Year-3 Year-4 Year-5 Year-6 Year-7 Year-8 Year-9 1980's 2,865 2,742 1,850 2,222 1,303 2,477 1,695 1,228 2,053 3,757 1990's 2,377 1,923 3,065 2,931 2,879 3,035 3,985 2,416 3,562 3,005 2000's 2,664 2,273 2,234 2,960 1,564 1,487 1,121 3,864 3,509 2,748 2010's 2,738 1,499 2,963 3,505 7,759 7,463 - = No Data Reported; -- = Not Applicable; NA = Not Available; W = Withheld to

  2. Tennessee Natural Gas Number of Commercial Consumers (Number of Elements)

    U.S. Energy Information Administration (EIA) (indexed site)

    Commercial Consumers (Number of Elements) Tennessee Natural Gas Number of Commercial Consumers (Number of Elements) Decade Year-0 Year-1 Year-2 Year-3 Year-4 Year-5 Year-6 Year-7 Year-8 Year-9 1980's 77,104 81,159 84,040 1990's 88,753 89,863 91,999 94,860 97,943 101,561 103,867 105,925 109,772 112,978 2000's 115,691 118,561 120,130 131,916 125,042 124,755 126,970 126,324 128,007 127,704 2010's 127,914 128,969 130,139 131,091 131,027 132,392 - = No Data Reported; -- = Not Applicable; NA = Not

  3. Tennessee Natural Gas Number of Industrial Consumers (Number of Elements)

    U.S. Energy Information Administration (EIA) (indexed site)

    Industrial Consumers (Number of Elements) Tennessee Natural Gas Number of Industrial Consumers (Number of Elements) Decade Year-0 Year-1 Year-2 Year-3 Year-4 Year-5 Year-6 Year-7 Year-8 Year-9 1980's 2,206 2,151 2,555 1990's 2,361 2,369 2,425 2,512 2,440 2,393 2,306 2,382 5,149 2,159 2000's 2,386 2,704 2,657 2,755 2,738 2,498 2,545 2,656 2,650 2,717 2010's 2,702 2,729 2,679 2,581 2,595 2,651 - = No Data Reported; -- = Not Applicable; NA = Not Available; W = Withheld to avoid disclosure of

  4. Tennessee Natural Gas Number of Residential Consumers (Number of Elements)

    U.S. Energy Information Administration (EIA) (indexed site)

    Residential Consumers (Number of Elements) Tennessee Natural Gas Number of Residential Consumers (Number of Elements) Decade Year-0 Year-1 Year-2 Year-3 Year-4 Year-5 Year-6 Year-7 Year-8 Year-9 1980's 534,882 565,856 599,042 1990's 627,031 661,105 696,140 733,363 768,421 804,724 841,232 867,793 905,757 937,896 2000's 969,537 993,363 1,009,225 1,022,628 1,037,429 1,049,307 1,063,328 1,071,756 1,084,102 1,083,573 2010's 1,085,387 1,089,009 1,084,726 1,094,122 1,106,917 1,124,572 - = No Data

  5. Tennessee Natural Gas Pipeline and Distribution Use (Million Cubic Feet)

    U.S. Energy Information Administration (EIA) (indexed site)

    (Million Cubic Feet) Tennessee Natural Gas Pipeline and Distribution Use (Million Cubic Feet) Decade Year-0 Year-1 Year-2 Year-3 Year-4 Year-5 Year-6 Year-7 Year-8 Year-9 1990's 22,559 16,440 15,208 2000's 13,808 13,757 11,480 12,785 10,486 9,182 8,696 9,988 10,238 11,720 2010's 10,081 11,655 9,880 6,660 7,213 7,936 - = No Data Reported; -- = Not Applicable; NA = Not Available; W = Withheld to avoid disclosure of individual company data. Release Date: 10/31/2016 Next Release Date: 11/30/2016

  6. Tennessee Natural Gas Total Consumption (Million Cubic Feet)

    U.S. Energy Information Administration (EIA) (indexed site)

    Total Consumption (Million Cubic Feet) Tennessee Natural Gas Total Consumption (Million Cubic Feet) Decade Year-0 Year-1 Year-2 Year-3 Year-4 Year-5 Year-6 Year-7 Year-8 Year-9 1990's 282,395 279,070 278,841 2000's 270,658 255,990 255,515 257,315 231,133 230,338 221,626 221,118 229,935 216,945 2010's 257,443 264,231 277,127 279,441 305,633 313,377 - = No Data Reported; -- = Not Applicable; NA = Not Available; W = Withheld to avoid disclosure of individual company data. Release Date: 10/31/2016

  7. Tennessee Natural Gas Vented and Flared (Million Cubic Feet)

    U.S. Energy Information Administration (EIA) (indexed site)

    Vented and Flared (Million Cubic Feet) Tennessee Natural Gas Vented and Flared (Million Cubic Feet) Decade Year-0 Year-1 Year-2 Year-3 Year-4 Year-5 Year-6 Year-7 Year-8 Year-9 1960's 0 0 0 1970's 0 408 180 165 376 585 339 156 117 126 1980's 0 0 0 0 0 0 0 0 0 0 1990's 0 0 0 0 0 0 0 0 0 2000's 0 0 0 0 0 2010's 0 0 0 0 0 0 - = No Data Reported; -- = Not Applicable; NA = Not Available; W = Withheld to avoid disclosure of individual company data. Release Date: 10/31/2016 Next Release Date:

  8. Tennessee Natural Gas in Underground Storage (Base Gas) (Million Cubic

    U.S. Energy Information Administration (EIA) (indexed site)

    Feet) Base Gas) (Million Cubic Feet) Tennessee Natural Gas in Underground Storage (Base Gas) (Million Cubic Feet) Year Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec 1997 0 0 0 0 0 0 0 0 0 0 0 0 1998 340 340 340 340 340 340 340 340 340 340 340 340 1999 340 340 340 340 340 340 340 340 340 340 340 340 2000 340 340 340 340 340 340 340 340 340 340 340 340 2001 340 340 340 340 340 340 340 340 340 340 340 340 2002 340 340 340 340 340 340 340 340 340 340 340 340 2003 340 340 340 340 340 340 340

  9. Tennessee Natural Gas in Underground Storage (Working Gas) (Million Cubic

    U.S. Energy Information Administration (EIA) (indexed site)

    Feet) Working Gas) (Million Cubic Feet) Tennessee Natural Gas in Underground Storage (Working Gas) (Million Cubic Feet) Year Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec 1997 0 0 0 0 0 0 0 0 0 0 0 0 1998 459 343 283 199 199 199 333 467 579 682 786 787 1999 656 532 401 321 318 462 569 645 749 854 911 855 2000 691 515 452 389 371 371 371 371 371 420 534 619 2001 623 563 490 421 525 638 669 732 778 840 598 597 2002 647 648 650 650 625 622 609 605 602 600 512 512 2003 404 294 226 179 214 290

  10. Tennessee Quantity of Production Associated with Reported Wellhead Value

    U.S. Energy Information Administration (EIA) (indexed site)

    (Million Cubic Feet) Quantity of Production Associated with Reported Wellhead Value (Million Cubic Feet) Tennessee Quantity of Production Associated with Reported Wellhead Value (Million Cubic Feet) Decade Year-0 Year-1 Year-2 Year-3 Year-4 Year-5 Year-6 Year-7 Year-8 Year-9 1980's 3,950 5,022 4,686 3,464 2,707 2,100 1,900 1990's 2,067 1,856 1,770 1,660 1,990 1,820 1,690 1,510 1,420 1,230 2000's 1,150 2,000 2,050 1,803 2,100 2,200 2,663 3,942 4,700 5,478 2010's 5,144 - = No Data Reported; --

  11. Tennessee Natural Gas % of Total Residential Deliveries (Percent)

    U.S. Energy Information Administration (EIA) (indexed site)

    % of Total Residential Deliveries (Percent) Tennessee Natural Gas % of Total Residential Deliveries (Percent) Decade Year-0 Year-1 Year-2 Year-3 Year-4 Year-5 Year-6 Year-7 Year-8 Year-9 1990's 1.19 1.18 1.24 1.34 1.29 1.31 1.28 2000's 1.37 1.43 1.42 1.37 1.34 1.37 1.40 1.29 1.41 1.38 2010's 1.55 1.43 1.30 1.45 1.54 1.46 - = No Data Reported; -- = Not Applicable; NA = Not Available; W = Withheld to avoid disclosure of individual company data. Release Date: 10/31/2016 Next Release Date:

  12. East Tennessee Middle School Regional Science Bowl | U.S. DOE Office of

    Office of Science (SC) [DOE]

    Science (SC) East Tennessee Middle School Regional Science Bowl National Science Bowl® (NSB) NSB Home About Regional Competitions Rules, Forms, and Resources High School Regionals Middle School Regionals National Finals Volunteers Key Dates Frequently Asked Questions News Media Contact Us WDTS Home Contact Information National Science Bowl® U.S. Department of Energy SC-27/ Forrestal Building 1000 Independence Ave., SW Washington, DC 20585 E: Email Us Middle School Regionals East Tennessee

  13. Tennessee Regional High School Science Bowl | U.S. DOE Office of Science

    Office of Science (SC) [DOE]

    (SC) Tennessee Regional High School Science Bowl National Science Bowl® (NSB) NSB Home About Regional Competitions Rules, Forms, and Resources High School Regionals Middle School Regionals National Finals Volunteers Key Dates Frequently Asked Questions News Media Contact Us WDTS Home Contact Information National Science Bowl® U.S. Department of Energy SC-27/ Forrestal Building 1000 Independence Ave., SW Washington, DC 20585 E: Email Us High School Regionals Tennessee Regional High School

  14. EERE Success Story-Washington, D.C. and Tennessee: Bioenergy Technologies

    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

    Office Announces Launch of New and Improved KDF | Department of Energy Washington, D.C. and Tennessee: Bioenergy Technologies Office Announces Launch of New and Improved KDF EERE Success Story-Washington, D.C. and Tennessee: Bioenergy Technologies Office Announces Launch of New and Improved KDF January 31, 2014 - 12:00am Addthis In September 2013, the Bioenergy Technologies Office (BETO) launched a revamped, easier-to-use version of the Bioenergy Knowledge Discovery Framework. Initially

  15. EERE Success Story-Tennessee: U.S. Automaker Improves Plant's

    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

    Performance, Saves Costs | Department of Energy Tennessee: U.S. Automaker Improves Plant's Performance, Saves Costs EERE Success Story-Tennessee: U.S. Automaker Improves Plant's Performance, Saves Costs November 6, 2013 - 5:15pm Addthis EERE's Superior Energy Performance (SEP) is a new, market-based energy management and certification program. A central element of SEP is to implement the global energy management standard, ISO 50001, with additional requirements to achieve and document energy

  16. Commemorating the Historical Contributions of the K-25 Site in Tennessee |

    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

    Department of Energy Commemorating the Historical Contributions of the K-25 Site in Tennessee Commemorating the Historical Contributions of the K-25 Site in Tennessee September 21, 2012 - 10:14am Addthis The 44-acre K-25 superstructure made significant historical contributions during its years of operation. | Photo credit Oak Ridge Office photographer Lynn Freeny. The 44-acre K-25 superstructure made significant historical contributions during its years of operation. | Photo credit Oak Ridge

  17. CNS partners with The University of Tennessee on new graduate-level

    U.S. Department of Energy (DOE) all webpages (Extended Search)

    engineering program | Y-12 National Security Complex CNS partners with The ... CNS partners with The University of Tennessee on new graduate-level engineering program The mp4 video format is not supported by this browser. Download video Captions: On Time: 3:54 min. Pantex Plant and Y-12 employees participate in the CNS/University of Tennessee's Fire Protection Engineering program burn class at the Knoxville Fire Department Training Academy

  18. Environmental Management Waste Management Facility Waste Lot Profile 155.5 for K-1015-A Laundry Pit, East Tennessee Technology Park Oak Ridge, Tennessee

    SciTech Connect (OSTI)

    Bechtel Jacobs, Raymer J.E.

    2008-06-12

    In 1989, the Oak Ridge Reservation (ORR), which includes the East Tennessee Technology Park (ETTP), was placed on the Comprehensive Environmental Response, Compensation, and Liability Act of 1980 (CERCLA) National Priorities List. The Federal Facility Agreement (FFA) (DOE 1992), effective January 1, 1992, now governs environmental restoration activities conducted under CERCLA at the ORR. Following signing of the FFA, U.S. Department of Energy (DOE), U.S. Environmental Protection Agency (EPA), and the state of Tennessee signed the Oak Ridge Accelerated Cleanup Plan Agreement on June 18, 2003. The purpose of this agreement is to define a streamlined decision-making process to facilitate the accelerated implementation of cleanup, to resolve ORR milestone issues, and to establish future actions necessary to complete the accelerated cleanup plan by the end of fiscal year 2008. While the FFA continues to serve as the overall regulatory framework for remediation, the Accelerated Cleanup Plan Agreement supplements existing requirements to streamline the decision-making process. The disposal of the K-1015 Laundry Pit waste will be executed in accordance with the 'Record of Decision for Soil, Buried Waste, and Subsurface Structure Actions in Zone, 2, East Tennessee Technology Park, Oak Ridge, Tennessee' (DOB/ORAH-2161&D2) and the 'Waste Handling Plan for the Consolidated Soil and Waste Sites with Zone 2, East Tennessee Technology Park, Oak Ridge, Tennessee' (DOE/OR/01-2328&D1). This waste lot consists of a total of approximately 50 cubic yards of waste that will be disposed at the Environmental Management Waste Management Facility (EMWMF) as non-containerized waste. This material will be sent to the EMWMF in dump trucks. This profile is for the K-1015-A Laundry Pit and includes debris (e.g., concrete, metal rebar, pipe), incidental soil, plastic and wood, and secondary waste (such as plastic sheeting, hay bales and other erosion control materials, wooden pallets

  19. Baseline Environmental Analysis Report for the K-1251 Barge Facility at the East Tennessee Technology Park, Oak Ridge, Tennessee

    SciTech Connect (OSTI)

    Van Winkle J.E.

    2007-08-24

    This report documents the baseline environmental conditions of the U. S. Department of Energy's (DOE's) K-1251 Barge Facility, which is located at the East Tennessee Technology Park (ETTP). DOE is proposing to lease the facility to the Community Reuse Organization of East Tennessee (CROET). This report provides supporting information for the use, by a potential lessee, of government-owned facilities at ETTP. This report is based upon the requirements of Sect. 120(h) of the Comprehensive Environmental Response, Compensation, and Liability Act of 1980 (CERCLA). The lease footprint is slightly over 1 acre. The majority of the lease footprint is defined by a perimeter fence that surrounds a gravel-covered area with a small concrete pad within it. Also included is a gravel drive with locked gates at each end that extends on the east side to South First Avenue, providing access to the facility. The facility is located along the Clinch River and an inlet of the river that forms its southern boundary. To the east, west, and north, the lease footprint is surrounded by DOE property. Preparation of this report included the review of government records, title documents, historic aerial photos, visual and physical inspections of the property and adjacent properties, and interviews with current and former employees involved in the operations on the real property to identify any areas on the property where hazardous substances and petroleum products or their derivatives and acutely hazardous wastes were known to have been released or disposed. Radiological surveys were conducted and chemical samples were collected to assess the facility's condition.

  20. GaInNAs laser gain

    SciTech Connect (OSTI)

    CHOW,WENG W.; JONES,ERIC D.; MODINE,NORMAND A.; KURTZ,STEVEN R.; ALLERMAN,ANDREW A.

    2000-05-23

    The optical gain spectra for GaInNAs/GaAs quantum wells are computed using a microscopic laser theory. From these spectra, the peak gain and carrier radiative decay rate as functions of carrier density are determined. These dependences allow the study of the lasing threshold current density of GaInNAs/GaAs quantum well structures.

  1. GaAs, AlGaAs and InGaP Tunnel Junctions for Multi-Junction Solar Cells Under Concentration: Resistance Study

    SciTech Connect (OSTI)

    Wheeldon, Jeffrey F.; Valdivia, Christopher E.; Walker, Alex; Kolhatkar, Gitanja; Hall, Trevor J.; Hinzer, Karin; Masson, Denis; Riel, Bruno; Fafard, Simon; Jaouad, Abdelatif; Turala, Artur; Ares, Richard; Aimez, Vincent

    2010-10-14

    The following four TJ designs, AlGaAs/AlGaAs, GaAs/GaAs, AlGaAs/InGaP and AlGaAs/GaAs are studied to determine minimum doping concentration to achieve a resistance of <10{sup -4} {omega}{center_dot}cm{sup 2} and a peak tunneling current suitable for MJ solar cells up to 1500-suns concentration (operating current of 21 A/cm{sup 2}). Experimentally calibrated numerical models are used to determine how the resistance changes as a function of doping concentration. The AlGaAs/GaAs TJ design is determined to require the least doping concentration to achieve the specified resistance and peak tunneling current, followed by the GaAs/GaAs, and AlGaAs/AlGaAs TJ designs. The AlGaAs/InGaP TJ design can only achieve resistances >5x10{sup -4} {omega}cm{sup 2}.

  2. Tennessee Natural Gas Pipeline and Distribution Use Price (Dollars per

    U.S. Energy Information Administration (EIA) (indexed site)

    Thousand Cubic Feet) Price (Dollars per Thousand Cubic Feet) Tennessee Natural Gas Pipeline and Distribution Use Price (Dollars per Thousand Cubic Feet) Decade Year-0 Year-1 Year-2 Year-3 Year-4 Year-5 Year-6 Year-7 Year-8 Year-9 1960's 0.20 0.20 0.20 1970's 0.20 0.22 0.23 0.24 0.28 0.36 0.49 0.73 0.89 1.26 1980's 1.73 2.25 2.96 3.19 2.94 3.01 2.29 1.85 1.78 1.97 1990's 1.94 2.61 2.44 2.23 1.88 1.59 2.57 2.52 2.17 2.04 2000's 3.44 4.13 NA -- -- -- - = No Data Reported; -- = Not Applicable;

  3. Tennessee Natural Gas Wellhead Price (Dollars per Thousand Cubic Feet)

    U.S. Energy Information Administration (EIA) (indexed site)

    Wellhead Price (Dollars per Thousand Cubic Feet) Tennessee Natural Gas Wellhead Price (Dollars per Thousand Cubic Feet) Decade Year-0 Year-1 Year-2 Year-3 Year-4 Year-5 Year-6 Year-7 Year-8 Year-9 1960's 0.19 0.19 0.19 1970's 0.20 0.22 0.32 0.30 0.35 0.44 0.51 0.74 1.64 1.70 1980's 1.76 2.55 3.00 2.50 3.50 2.48 1.78 1.31 1.50 1.65 1990's 1.65 1.72 1.79 2.65 2.16 1.54 2.54 2.55 2.15 2.28 2000's 4.09 3.60 3.41 5.22 6.90 9.55 6.78 6.63 8.85 3.83 2010's 4.35 - = No Data Reported; -- = Not

  4. Environmental Compliance and Protection Program Description Oak Ridge, Tennessee

    SciTech Connect (OSTI)

    Bechtel Jacobs

    2009-02-26

    The objective of the Environmental Compliance and Protection (EC and P) Program Description (PD) is to establish minimum environmental compliance requirements and natural resources protection goals for the Bechtel Jacobs Company LLC (BJC) Oak Ridge Environmental Management Cleanup Contract (EMCC) Contract Number DE-AC05-98OR22700-M198. This PD establishes the work practices necessary to ensure protection of the environment during the performance of EMCC work activities on the US Department of Energy's (DOE's) Oak Ridge Reservation (ORR) in Oak Ridge, Tennessee, by BJC employees and subcontractor personnel. Both BJC and subcontractor personnel are required to implement this PD. A majority of the decontamination and demolition (D and D) activities and media (e.g., soil and groundwater) remediation response actions at DOE sites on the ORR are conducted under the authority of the Comprehensive Environmental Response, Compensation, and Liability Act of 1980 (CERCLA). CERCLA activities are governed by individual CERCLA decision documents (e.g., Record of Decision [ROD] or Action Memorandum) and according to requirements stated in the Federal Facility Agreement for the Oak Ridge Reservation (DOE 1992). Applicable or relevant and appropriate requirements (ARARs) for the selected remedy are the requirements for environmental remediation responses (e.g., removal actions and remedial actions) conducted under CERCLA.

  5. Oak Ridge Site Specific Advisory Board * P.O. Box 2001, EM-91, Oak Ridge, TN 37831

    Office of Environmental Management (EM)

    October 16, 2012 Susan Cange Deputy Manager for Environmental Management DOE-Oak Ridge Office P.O. Box 2001, EM-90 Oak Ridge, TN 37831 Dear Ms. Cange: Recommendation 211 : Recommendation on Availability of DOE Environmental Management Documents At our October 10, 2012, meeting the Oak Ridge Site Specific Advisory Board approved the enclosed recommendation regarding the availability and finding of documents online through the DOE Information Center. The board recommends that steps be taken to

  6. Identification of multiple mercury sources to stream sediments near Oak Ridge, TN, USA

    DOE PAGES-Beta [OSTI]

    Donovan, Patrick M.; Blum, Joel D.; Demers, Jason D.; Gu, Baohua; Brooks, Scott C.; Peryam, John

    2014-03-03

    In this paper, sediments were analyzed for total Hg concentration (THg) and isotopic composition from streams and rivers in the vicinity of the Y-12 National Security Complex (Y12) in Oak Ridge, TN (USA). In the stream directly draining Y12, where industrial releases of mercury (Hg) have been documented, high THg (3.26 to 60.1 μg/g) sediments had a distinct Hg isotopic composition (δ202Hg of 0.02 ± 0.15‰ and Δ199Hg of -0.07 ± 0.03‰; mean ± 1SD, n=12) compared to sediments from relatively uncontaminated streams in the region (δ202Hg = -1.40 ± 0.06‰ and Δ199Hg of –0.26 ± 0.03‰; mean ± 1SD,more » n=6). Additionally, several streams that are nearby but do not drain Y12 had sediments with intermediate THg (0.06 to 0.21 μg/g) and anomalous δ202Hg (as low as -5.07‰). We suggest that the low δ202Hg values in these sediments provide evidence for the contribution of an additional Hg source to sediments, possibly derived from atmospheric deposition. In sediments directly downstream of Y12 this third Hg source is not discernible and the Hg isotopic composition can be largely explained by the mixing of low THg sediments with high THg sediments contaminated by Y12 discharges.« less

  7. Identification of multiple mercury sources to stream sediments near Oak Ridge, TN, USA

    SciTech Connect (OSTI)

    Donovan, Patrick M.; Blum, Joel D.; Demers, Jason D.; Gu, Baohua; Brooks, Scott C.; Peryam, John

    2014-03-03

    In this paper, sediments were analyzed for total Hg concentration (THg) and isotopic composition from streams and rivers in the vicinity of the Y-12 National Security Complex (Y12) in Oak Ridge, TN (USA). In the stream directly draining Y12, where industrial releases of mercury (Hg) have been documented, high THg (3.26 to 60.1 μg/g) sediments had a distinct Hg isotopic composition (δ202Hg of 0.02 ± 0.15‰ and Δ199Hg of -0.07 ± 0.03‰; mean ± 1SD, n=12) compared to sediments from relatively uncontaminated streams in the region (δ202Hg = -1.40 ± 0.06‰ and Δ199Hg of –0.26 ± 0.03‰; mean ± 1SD, n=6). Additionally, several streams that are nearby but do not drain Y12 had sediments with intermediate THg (0.06 to 0.21 μg/g) and anomalous δ202Hg (as low as -5.07‰). We suggest that the low δ202Hg values in these sediments provide evidence for the contribution of an additional Hg source to sediments, possibly derived from atmospheric deposition. In sediments directly downstream of Y12 this third Hg source is not discernible and the Hg isotopic composition can be largely explained by the mixing of low THg sediments with high THg sediments contaminated by Y12 discharges.

  8. General Atomics (GA) Fusion News: A New Spin on Understanding...

    U.S. Department of Energy (DOE) all webpages (Extended Search)

    General Atomics (GA) Fusion News: A New Spin on Understanding Plasma Confinement American Fusion News Category: General Atomics (GA) Link: General Atomics (GA) Fusion News: A New ...

  9. Fiscal Year 2009 Phased Construction Completion Report for EU Z2-36 in Zone 2, East Tennessee Technology Park, Oak Ridge, Tennessee

    SciTech Connect (OSTI)

    Bechtel Jacobs

    2009-02-10

    The purpose of this Phased Construction Completion Report (PCCR) is to present fiscal year (FY) 2009 results of Dynamic Verification Strategy (DVS) characterization activities for exposure unit (EU) Z2-36 in Zone 2 at the East Tennessee technology Park (ETTP). The ETTP is located in the northwest corner of the US Department of Energy (DOE) Oak Ridge Reservation in Oak Ridge, Tennessee and encompasses approximately 5000 acres that have been subdivided into three zones--Zone 1 ({approx} 1400 acres), Zone 2 ({approx} 800 acres), and the Boundary Area ({approx} 2800 acres). Zone 2 comprises the highly industrial portion of ETTP and consists of all formerly secured areas of the facility, including the large processing buildings and direct support facilities; experimental laboratories and chemical and materials handling facilities; materials storage and waste disposal facilities; secure document records libraries; and shipping and receiving warehouses. The Record of Decision for Soil, Buried Waste, and Subsurface Structure Actions in Zone 2, East Tennessee Technology Park, Oak Ridge, Tennessee (DOE 2005) (Zone 2 ROD) specifies the future end use for Zone 2 acreage as uncontrolled industrial for the upper 10 ft of soils. Characterization activities in these areas were conducted in compliance with the Zone 2 ROD and the DVS and data quality objectives (DQOs) presented in the Main Plant Group DQO Scoping Package (July 2006) and the Remedial Design Report/Remedial Action Work Plan for Zone 2 Soils, Slabs, and Subsurface Structures, East Tennessee Technology Park, Oak Ridge, Tennessee (DOE 2007a) (Zone 2 RDR/RAWP). The purpose of this PCCR is to address the following: (1) Document EU Z2-36 DVS characterization results; (2) Describe and document the risk evaluation and determine if the EU meets the Zone 2 ROD requirements for unrestricted industrial use to 10 ft bgs, and (3) Identify additional areas not defined in the Zone 2 ROD that require remediation based on the DVS

  10. Going pink from Texas to Tennessee | Y-12 National Security Complex

    U.S. Department of Energy (DOE) all webpages (Extended Search)

    Going pink from Texas to ... Going pink from Texas to Tennessee Posted: November 12, 2015 - 3:20pm Rodney Ryder, a Y-12 lineman in Power Operations, dyed his beard pink in honor of those battling cancer. From Texas to Tennessee, Consolidated Nuclear Security employees were in the pink for October. More than 100 employees, friends and family members participated in the Susan G. Komen Race for the Cure in the two locations while other employees wore pink and even dyed their facial hair. In Texas,

  11. Tennessee Oversight Agreement annual report, May 31, 1994--June 30, 1995

    SciTech Connect (OSTI)

    1995-09-01

    The Tennessee Department of Environment and Conservation`s DOE Oversight Division (TDEC/DOE-O) is responsible for assuring the citizens of Tennessee that their health, safety and environment on the Oak Ridge Reservation are protected and that appropriate remedial action is taken to provide this protection. TDEC/DOE-O has five program sections that reflect the organizational structure of the TDEC Bureau of Environment Divisions, as well as DOE`s Environmental Safety and Health, Waste Management, and Environmental Restoration Programs.

  12. Fiscal year 1996 well plugging and abandonment program Y-12 Plant, Oak Ridge, Tennessee

    SciTech Connect (OSTI)

    1997-04-01

    This report is a synopsis of the progress of the well plugging and abandonment program at the Oak Ridge Y-12 Plant, Oak Ridge, Tennessee, from August 1995 through August 1996. A total of 27 wells, piezometers, and borings were plugged and abandoned during the period of time covered in this report. All wells and borings were plugged and abandoned in accordance with the Monitoring Well Plugging and Abandonment Plan for the U.S. Department of Energy, Y-12 Plant, Oak Ridge, Tennessee (HSW, Inc. 1991).

  13. Intense terahertz emission from molecular beam epitaxy-grown GaAs/GaSb(001)

    SciTech Connect (OSTI)

    Sadia, Cyril P.; Laganapan, Aleena Maria; Agatha Tumanguil, Mae; Estacio, Elmer; Somintac, Armando; Salvador, Arnel; Que, Christopher T.; Yamamoto, Kohji; Tani, Masahiko

    2012-12-15

    Intense terahertz (THz) electromagnetic wave emission was observed in undoped GaAs thin films deposited on (100) n-GaSb substrates via molecular beam epitaxy. GaAs/n-GaSb heterostructures were found to be viable THz sources having signal amplitude 75% that of bulk p-InAs. The GaAs films were grown by interruption method during the growth initiation and using various metamorphic buffer layers. Reciprocal space maps revealed that the GaAs epilayers are tensile relaxed. Defects at the i-GaAs/n-GaSb interface were confirmed by scanning electron microscope images. Band calculations were performed to infer the depletion region and electric field at the i-GaAs/n-GaSb and the air-GaAs interfaces. However, the resulting band calculations were found to be insufficient to explain the THz emission. The enhanced THz emission is currently attributed to a piezoelectric field induced by incoherent strain and defects.

  14. U.S. Energy Information Administration (EIA) (indexed site)

    Tennessee Tennessee

  15. Type B Accident Investigation, Subcontractor Employee Personal Protective Equipment Ignition Incident on February 18, 2003, at the East Tennessee Technology Park, Oak Ridge, Tennessee

    Energy.gov [DOE]

    On February 18, 2003, a general laborer employed at the East Tennessee Technology Park (ETTP) by MACTEC Constructors, Inc. (MACTEC) was performing rebar removal with a gas-powered cut-off machine. MACTEC is a subcontractor to Bechtel Jacobs Company LL (BJC). The sparks from the cut-off machine ignited the right leg of his 100% cotton anticontamination (anti-c) coveralls and the plastic bootie.

  16. System Description for the K-25/K-27 D&D Project Polyurethane Foam Delivery System, East Tennessee Technology Park, Oak Ridge, Tennessee

    SciTech Connect (OSTI)

    Boris, G.

    2008-02-21

    The Foam Delivery System used in the decontamination and decommissioning (D&D) project for the K-25/K-27 Buildings at the East Tennessee Technology Park (ETTP) is comprised of a trailer-mounted Gusmer{reg_sign} H20/35 Pro-TEC Proportioning Unit and the associated equipment to convey electrical power, air, and foam component material to the unit. This high-pressure, plural-component polyurethane foam pouring system will be used to fill process gas and non-process equipment/piping (PGE/P) within the K-25/K-27 Buildings with polyurethane foam to immobilize contaminants prior to removal. The system creates foam by mixing isocyanate and polyol resin (Resin) component materials. Currently, the project plans to utilize up to six foaming units simultaneously during peak foaming activities. Also included in this system description are the foam component material storage containers that will be used for storage of the component material drums in a staging area outside of the K-25/K-27 Buildings. The Foam Delivery System and foam component material storage enclosures (i.e., Foaming Component Protective Enclosures) used to store polymeric methylene diphenyl diisocyanate (PMDI) component material are identified as Safety Significant (SS) Structures, Systems and Components (SSC) in the Documented Safety Analysis (DSA) for the project, Documented Safety Analysis for the K-25 and K-27 Facilities at the East Tennessee Technology Park, Oak Ridge, Tennessee, DSA-ET-K-25/K-27-0001.

  17. Ethanol Grain Processors LLC | Open Energy Information

    Open Energy Information (Open El) [EERE & EIA]

    Processors LLC Jump to: navigation, search Name: Ethanol Grain Processors, LLC Place: Obion, Tennessee Zip: TN 38240 Product: Tennessee-based ethanol producer. Coordinates:...

  18. EM Utility Contracts

    Office of Environmental Management (EM)

    22012 EM UTILITY CONTRACT Site State Supplier Executed Contract Type DOE Contract East Tennessee Technology Park TN Tennessee Valley Authority 4272007 Energy supply contract ...

  19. DOE Form

    National Nuclear Security Administration (NNSA)

    ... 09172012 TN DEPT. OF ENVIRONMENT AND CONSERVATION - HAZARDOUS WASTE PROGRAM RULES OF THE TENNESSEE DEPARTMENT OF ENVIRONMENT AND CONSERVATION TENNESSEE INACTIVE 1 HAZARDOUS ...

  20. Results for the Independent Sampling and Analysis of Used Oil Drums at the Impact Services Facility in Oak Ridge, TN

    SciTech Connect (OSTI)

    2013-04-25

    The U.S. Department of Energy (DOE) requested that Oak Ridge Associated Universities (ORAU), via the Oak Ridge Institute for Science and Education (ORISE) contract, perform independent sampling and analysis of used oils contained within eight 55 gallon drums stored at the former IMPACT Services facility, located at the East Tennessee Technology Park in Oak Ridge, Tennessee. These drums were originally delivered by LATA Sharp Remediation Services (LSRS) to IMPACT Services on January 11, 2011 as part of the Bldg. K-33 demolition project, and the drums plus contents should have been processed as non-hazardous non-radiological waste by IMPACT Services. LSRS received a certificate of destruction on August 29, 2012 (LSRS 2012a). However, IMPACT Services declared bankruptcy and abandoned the site later in 2012, and eight of the original eleven K-33 drums are currently stored at the facility. The content of these drums is the subject of this investigation. The original drum contents were sampled by LSRS in 2010 and analyzed for gross alpha, gross beta, and polychlorinated biphenyls (PCBs), using both compositing and grab sampling techniques. The objective of this 2013 sample and analysis effort was to duplicate, to the extent possible, the 2010 sampling and analysis event to support final disposition decisions. Part of that decision process includes either verifying or refuting the assertion that oils that are currently stored in drums at the IMPACT Services facility originated from Bldg. K-33 equipment.

  1. New GaInP/GaAs/GaInAs, Triple-Bandgap, Tandem Solar Cell for High-Efficiency Terrestrial Concentrator Systems

    SciTech Connect (OSTI)

    Kurtz, S.; Wanlass, M.; Kramer, C.; Young, M.; Geisz, J.; Ward, S.; Duda, A.; Moriarty, T.; Carapella, J.; Ahrenkiel, P.; Emery. K.; Jones, K.; Romero, M.; Kibbler, A.; Olson, J.; Friedman, D.; McMahon, W.; Ptak, A.

    2005-11-01

    GaInP/GaAs/GaInAs three-junction cells are grown in an inverted configuration on GaAs, allowing high quality growth of the lattice matched GaInP and GaAs layers before a grade is used for the 1-eV GaInAs layer. Using this approach an efficiency of 37.9% was demonstrated.

  2. DOE Awards Contract for Decontamination & Decommissioning Project for the East Tennessee Technology Park

    Energy.gov [DOE]

    Oak Ridge, Tenn. – As part of its ongoing commitment to cleaning up the legacy of the Cold War at sites across the weapons complex, the U.S. Department of Energy has awarded a contract for the remaining environmental cleanup at the East Tennessee Technology Park (ETTP) to URS | CH2M Oak Ridge, LLC.

  3. City of Knoxville, Tennessee City Council Resolution for solar PV system

    Energy.gov [DOE]

    This document is a scan of the resolution, dated July 26, 2011, for the approval of the City of Knoxville, Tennessee to use $250,000 of EECBG funding for finding innovative financing mechanisms for a planned installation of a 90-kW solar PV system.

  4. Indoor air quality study of forty east Tennessee homes

    SciTech Connect (OSTI)

    Hawthorne, A.R.; Gammage, R.B.; Dudney, C.S.; Hingerty, B.E.; Schuresko, D.D.; Parzyck, D.C.; Womack, D.R.; Morris, S.A.; Westley, R.R.; White, D.A.

    1984-12-01

    Over a one-year period, measurements of indoor air pollutants (CO/sub x/, NO/sub x/, formaldehyde, volatile organics, particulates, and radon) were made in 40 homes in East Tennessee. The houses were of various ages with different types of insulation and heating. Over one-half of the houses exceeded the ASHRAE indoor ceiling guideline of 0.1 ppM for formaldehyde on at least one occasion. Over the duration of the study, older houses averaged 0.04 ppM of formaldehyde while houses less than 5 years old averaged 0.08 ppM (P < 0.01). The highest concentration of formaldehyde measured was 0.4 ppM in a new home. Diurnal and seasonal fluctuations in levels of formaldehyde in some homes were as much as twofold and tenfold, respectively. The highest levels of formaldehyde were usually recorded during summer months. The concentration in indoor air of various organics was at least tenfold higher than in outdoor air. Carbon monoxide and nitrgen oxides were usually <2 and <0.02 ppM, respectively, except when gas stoves or kerosene space heaters were operating, or when a car was running in the garage. In 30% of the houses, the annual indoor guideline for radon, 4 pCi/L, was exceeded. The mean radon level in houses built on the ridgelines was 4.4 pCi/L, while houses located in the valleys had a mean level of 1.7 pCi/L (P < 0.01). The factor having the most impact on infiltration was operation of the central duct fan of the heating, ventilation, and air conditioning system. The mean rate of air exchange increased from 0.39 to 0.74 h/sup -1/ when the duct fan was operated (measurements prior to December 1982). This report presents the study design and implementation, describes the monitoring protocols, and provides a complete set of the data collected during the project. 25 references, 29 figures, 42 tables.

  5. Environmental Management Waste Management Facility Proxy Waste Lot Profile 6.999 for Building K-25 West Wing, East Tennessee Technology Park, Oak Ridge, Tennessee

    SciTech Connect (OSTI)

    Rigsby V.P.

    2009-02-12

    In 1989, the Oak Ridge Reservation (ORR), which includes the East Tennessee Technology Park (ETTP), was placed on the Comprehensive Environmental Response, Compensation, and Liability Act of 1980 (CERCLA) National Priorities List. The Federal Facility Agreement (FFA) (DOE 1992), effective January 1, 1992, now governs environmental restoration activities conducted under CERCLA at the ORR. Following signing of the FFA, U.S. Department of Energy (DOE), U.S. Environmental Protection Agency (EPA), and the state of Tennessee signed the Oak Ridge Accelerated Cleanup Plan Agreement on June 18, 2002. The purpose of this agreement is to define a streamlined decision-making process to facilitate the accelerated implementation of cleanup, resolve ORR milestone issues, and establish future actions necessary to complete the accelerated cleanup plan by the end of fiscal year 2008. While the FFA continues to serve as the overall regulatory framework for remediation, the Accelerated Cleanup Plan Agreement supplements existing requirements to streamline the decision-making process. Decontamination and decommissioning (D&D) activities of Bldg. K-25, the original gaseous diffusion facility, is being conducted by Bechtel Jacobs Company LLC (BJC) on behalf of the DOE. The planned CERCLA action covering disposal of building structure and remaining components from the K-25 building is scheduled as a non-time-critical CERCLA action as part of DOE's continuous risk reduction strategy for ETTP. The K-25 building is proposed for D&D because of its poor physical condition and the expense of surveillance and maintenance activities. The K-25/K-27 D&D Project proposes to dispose of the commingled waste listed below from the K-25 west side building structure and remaining components and process gas equipment and piping at the Environmental Management Waste Management Facility (EMWMF) under waste disposal proxy lot (WPXL) 6.999: (1) Building structure (e.g. concrete floors [excluding basement slab

  6. Temperature coefficients for GaInP/GaAs/GaInNAsSb solar cells

    SciTech Connect (OSTI)

    Aho, Arto; Isoaho, Riku; Tukiainen, Antti; Polojärvi, Ville; Aho, Timo; Raappana, Marianna; Guina, Mircea

    2015-09-28

    We report the temperature coefficients for MBE-grown GaInP/GaAs/GaInNAsSb multijunction solar cells and the corresponding single junction sub-cells. Temperature-dependent current-voltage measurements were carried out using a solar simulator equipped with a 1000 W Xenon lamp and a three-band AM1.5D simulator. The triple-junction cell exhibited an efficiency of 31% at AM1.5G illumination and an efficiency of 37–39% at 70x real sun concentration. The external quantum efficiency was also measured at different temperatures. The temperature coefficients up to 80°C, for the open circuit voltage, the short circuit current density, and the conversion efficiency were determined to be −7.5 mV/°C, 0.040 mA/cm{sup 2}/°C, and −0.09%/°C, respectively.

  7. Type B Accident Investigation Board Report of the Bechtel Jacobs Company, LLC Employee Fall Injury on January 3, 2006, at the K-25 Building, East Tennessee Technology Park, Oak Ridge, Tennessee

    Office of Energy Efficiency and Renewable Energy (EERE)

    On Tuesday, January 3, 2006, at 1:55 pm, a Bechtel Jacobs Company LLC (BJC) iron worker accidentally fell through a degraded concrete floor panel while working in the K-25 Building at the East Tennessee Technology Park (ETTP).

  8. Spark! A Unique Opportunity to Learn About Promising Technologies at Oak Ridge National Laboratory and the University of Tennessee

    Energy.gov [DOE]

    SPARK!, is a unique opportunity to learn about some of the most promising technologies at the Oak Ridge National Laboratory and the University of Tennessee. Attendees will hear brief presentations...

  9. Interim Letter Report - Verification Survey of Partial Grid E9, David Witherspoon, Inc. 1630 Site Knoxville, Tennessee

    SciTech Connect (OSTI)

    P.C. Weaver

    2008-06-12

    Conduct verification surveys of available grids at the DWI 1630 in Knoxville, Tennessee. A representative with the Independent Environmental Assessment and Verification (IEAV) team from ORISE conducted a verification survey of a partial area within Grid E9.

  10. EA-1113: Lease of Parcel ED-1 of the Oak Ridge Reservation By The East Tennessee Council

    Energy.gov [DOE]

    This EA evaluates the potential environmental impacts associated with the proposed lease of 957.16 acres of the Oak Ridge Reservation to the East Tennessee Economic Council (ETEC). ETEC proposes ...

  11. Superfund record of decision amendment (EPA Region 4): Wrigley Charcoal Superfund Site, Hickman County, Wrigley, TN, February 2, 1995

    SciTech Connect (OSTI)

    1995-03-01

    This decision document presents the selected Interim Remedial Action (IRA) for the Wrigley Charcoal Site, in Wrigley, Hickman County, Tennessee. The U.S. EPA has modified a wide variety of items that require immediate response action for the first step of cleanup activities to be taken at the Wrigley Charcoal Site. The major goal of these cleanup activities is to address the most serious threats at the Wrigley Charcoal Site by removing contaminated media from the Primary Site flood plain, remediating wastes at the Storage Basin, and through limited access restrictions at the Primary Site and the Storage Basin. The cleanup activities as presented in this IRA Record of Decision (ROD) Amendment will achieve significant risk reduction and will prepare the Site for future remedial activities.

  12. InGaAsN/GaAs heterojunction for multi-junction solar cells

    DOE Patents [OSTI]

    Kurtz, Steven R.; Allerman, Andrew A.; Klem, John F.; Jones, Eric D.

    2001-01-01

    An InGaAsN/GaAs semiconductor p-n heterojunction is disclosed for use in forming a 0.95-1.2 eV bandgap photodetector with application for use in high-efficiency multi-junction solar cells. The InGaAsN/GaAs p-n heterojunction is formed by epitaxially growing on a gallium arsenide (GaAs) or germanium (Ge) substrate an n-type indium gallium arsenide nitride (InGaAsN) layer having a semiconductor alloy composition In.sub.x Ga.sub.1-x As.sub.1-y N.sub.y with 0GaAs layer, with the InGaAsN and GaAs layers being lattice-matched to the substrate. The InGaAsN/GaAs p-n heterojunction can be epitaxially grown by either molecular beam epitaxy (MBE) or metalorganic chemical vapor deposition (MOCVD). The InGaAsN/GaAs p-n heterojunction provides a high open-circuit voltage of up to 0.62 volts and an internal quantum efficiency of >70%.

  13. EA-1113: Lease of Parcel ED-1 of the Oak Ridge Reservation By The East Tennessee Economic Council

    Energy.gov [DOE]

    Lease of Parcel ED-1 of the Oak Ridge Reservation By The East Tennessee Economic Council This EA evaluates the potential environmental impacts for the proposed lease of 957.16 acres of the Oak Ridge Reservation to the East Tennessee Economic Council. ETEC proposes to develop an industrial park on the leased site to provide employment opportunities for DOE and contractor employees affected by decreased federal funding.

  14. Knoxville, Tennessee: Solar in Action (Brochure), Solar America Cities, Energy Efficiency & Renewable Energy (EERE)

    Office of Energy Efficiency and Renewable Energy (EERE)

    This brochure provides an overview of the challenges and successes of Knoxville, TN, a 2008 Solar America City awardee, on the path toward becoming a solar-powered community. Accomplishments, case studies, key lessons learned, and local resource information are given.

  15. Fiscal Year 2007 Phased Construction Completion Report for the Zone 2 Soils, Slabs, and Subsurface Structures at East Tennessee Technology Park, Oak Ridge, Tennessee

    SciTech Connect (OSTI)

    RSI

    2008-03-01

    The purpose of this Phased Construction Completion Report (PCCR) is to present the fiscal year (FY) 2007 results of characterization activities and recommended remedial actions (RAs) for 11 exposure units (EUs) in Zone 2 (Z2-01, Z2-03, Z2-08, Z2-23, Z2-24, Z2-28, Z2-34, Z2-37, Z2-41, Z2-43, and Z2-44) at the East Tennessee Technology Park (ETTP), which is located in the northwest corner of the U.S. Department of Energy (DOE) Oak Ridge Reservation in Oak Ridge, Tennessee (Fig. 1). ETTP encompasses a total land area of approximately 5000 acres that has been subdivided into three zones--Zone 1 ({approx}1400 acres), Zone 2 ({approx}800 acres), and the Boundary Area ({approx}2800 acres). Zone 2, which encompasses the highly industrialized portion of ETTP shown in Fig. 1, consists of all formerly secured areas of the facility, including the large processing buildings and direct support facilities; experimental laboratories and chemical and materials handling facilities; materials storage and waste disposal facilities; secure document records libraries; and shipping and receiving warehouses. The Zone 2 Record of Decision for Soil, Buried Waste, and Subsurface Structure Actions in Zone 2, East Tennessee Technology Park, Oak Ridge, Tennessee (DOE 2005) (Zone 2 ROD) specifies the future end use for Zone 2 acreage as uncontrolled industrial for the upper 10 ft of soils. Characterization activities in these areas were conducted in compliance with the Zone 2 ROD and the Dynamic Verification Strategy (DVS) and data quality objectives (DQOs) presented in the Remedial Design Report/Remedial Action Work Plan for Zone 2 Soils, Slabs, and Subsurface Structures, East Tennessee Technology Park, Oak Ridge, Tennessee (DOE 2007) (Zone 2 RDR/RAWP). The purpose of this PCCR is to address the following: (1) Document DVS characterization results for the accessible EUs in FY 2007; (2) Describe and document the risk evaluation for each EU, and determine if the EU met the Zone 2 ROD requirements

  16. Magnetism and transport properties of epitaxial Fe-Ga thin films on GaAs(001)

    SciTech Connect (OSTI)

    Duong Anh Tuan; Shin, Yooleemi; Cho, Sunglae; Dang Duc Dung; Vo Thanh Son

    2012-04-01

    Epitaxial Fe-Ga thin films in disordered bcc {alpha}-Fe crystal structure (A2) have been grown on GaAs(001) by molecular beam epitaxy. The saturated magnetization (M{sub S}) decreased from 1371 to 1105 kA/m with increasing Ga concentration from 10.5 to 24.3 % at room temperature. The lattice parameter increased with the increase in Ga content because of the larger atomic radius of Ga atom than that of Fe. The increase in carrier density with Ga content caused in lower resistivity.

  17. Graphene induced remote surface scattering in graphene/AlGaN/GaN heterostructures

    SciTech Connect (OSTI)

    Liu, Xiwen; Li, Dan; Wang, Bobo; Liu, Bin; Chen, Famin; Jin, Guangri; Lu, Yanwu

    2014-10-20

    The mobilities of single-layer graphene combined with AlGaN/GaN heterostructures on two-dimensional electron gases in graphene/AlGaN/GaN double heterojunction are calculated. The impact of electron density in single-layer graphene is also studied. Remote surface roughness (RSR) and remote interfacial charge (RIC) scatterings are introduced into this heterostructure. The mobilities limited by RSR and RIC are an order of magnitude higher than that of interface roughness and misfit dislocation. This study contributes to designing structures for generation of higher electron mobility in graphene/AlGaN/GaN double heterojunction.

  18. DOE Form

    National Nuclear Security Administration (NNSA)

    ... EP TN CODE ANNOTATED TENNESSEE CODE ANNOTATED EM, EG TN 1200 RULES OF THE TENNESSEE DEPARTMENT OF ENVIRONMENT AND CONSERVATION CP, EP SECTION J, ATTACHMENT E B&W Y-12 RCN No. ...

  19. World Record Earned Value Management System Certification for Cleanup of the East Tennessee Technology Park, Oak Ridge, Tennessee, USA - 13181

    SciTech Connect (OSTI)

    Haynes, Ray; Hirschy, Anita

    2013-07-01

    On projects that require Earned Value Management (EVMS) Certification, it is critical to quickly prepare for and then successfully obtain certification. This is especially true for government contracts. Projects that do poorly during the review are subject to financial penalties to their company and they lose creditability with their customer creating problems with the project at the outset. At East Tennessee Technology Park (ETTP), we began preparing for Department of Energy (DOE) certification early during proposal development. Once the contract was awarded, while still in transition phase from the previous contractor to our new company, we immediately began reviewing the project controls systems that were in place on the project and determined if any replacements needed to be made immediately. The ETTP contract required the scheduling software to be upgraded to Primavera P6 and we determined that no other software changes would be done prior to certification. Next, preparation of the Project Controls System Description (PCSD) and associated procedures began using corporate standards as related to the project controls systems. During the transition phase, development was started on the Performance Measurement Baseline which is the resource loaded schedule used to measure our performance on the project and which is critical to good Earned Value Management of the project. Early on, and throughout the baseline review, there was positive feedback from the Department of Energy that the quality of the new baseline was good. Having this superior baseline also contributed to our success in EVMS certification. The combined companies of URS and CH2M Hill had recent experience with certifications at other Department of Energy sites and we were able to capitalize on that knowledge and experience. Generic PCSD and procedures consistent with our co-operations approach to Earned Value Management were available to us and were easily tailorable to the specifics of our contract

  20. Fiscal Year 2008 Phased Construction Completion Report for EU Z2-33 in Zone 2, East Tennessee Technology Park, Oak Ridge, Tennessee

    SciTech Connect (OSTI)

    Bechtel Jacobs

    2008-09-11

    The Record of Decision for Soil, Buried Waste, and Subsurface Structure Actions in Zone 2, East Tennessee Technology Park, Oak Ridge, Tennessee (DOE/OR/01-2161&D2) (Zone 2 ROD) acknowledged that most of the 800 acres in Zone 2 were contaminated, but that sufficient data to confirm the levels of contamination were lacking. The Zone 2 ROD further specified that a sampling strategy for filling the data gaps would be developed. The Remedial Design Report/Remedial Action Work Plan for Zone 2 Soils, Slabs, and Subsurface Structures, East Tennessee Technology Park, Oak Ridge, Tennessee (DOE/OR/01-2224&D3) (Zone 2 RDR/RAWP) defined the sampling strategy as the Dynamic Verification Strategy (DVS), generally following the approach used for characterization of the Zone 1 exposure units (EUs). The Zone 2 ROD divided the Zone 2 area into seven geographic areas and 44 EUs. To facilitate the data quality objectives (DQOs) of the DVS process, the Zone 2 RDR/RAWP regrouped the 44 EUs into 12 DQO scoping EU groups. These groups facilitated the DQO process by placing similar facilities and their support facilities together and allowing identification of data gaps. The EU groups were no longer pertinent after DQO planning was completed and characterization was conducted as areas became accessible. As the opportunity to complete characterization became available, the planned DVS program and remedial actions (RAs) were completed for EU Z2-33. Remedial action was also performed at two additional areas in adjacent EU Z2-42 because of their close proximity and similar nature to a small surface soil RA in EU Z2-33. Remedial actions for building slabs performed in EU Z2-33 during fiscal year (FY) 2007 were reported in the Fiscal Year 2007 Phased Construction Completion Report for the Zone 2 Soils, Slabs, and Subsurface Structures at East Tennessee Technology Park, Oak Ridge, Tennessee (DOE/OR/01-2723&D1). Recommended RAs for EU Z2-42 were described in the Fiscal Year 2006 Phased Construction

  1. Band Structure of Strain-Balanced GaAsBi/GaAsN Super-lattices on GaAs

    SciTech Connect (OSTI)

    Hwang, J.; Phillips, J. D.

    2011-05-31

    GaAs alloys with dilute content of Bi and N provide a large reduction in band-gap energy with increasing alloy composition. GaAsBi/GaAsN heterojunctions have a type-II band alignment, where superlattices based on these materials offer a wide range for designing effective band-gap energy by varying superlattice period and alloy composition. The miniband structure and effective band gap for strain-balanced GaAsBi/GaAsN superlattices with effective lattice match to GaAs are calculated for alloy compositions up to 5% Bi and N using the kp method. The effective band gap for these superlattices is found to vary between 0.89 and 1.32 eV for period thickness ranging from 10 to 100 . The joint density of states and optical absorption of a 40/40 GaAs0.96Bi0.04/GaAs0.98N0.02 superlattice are reported demonstrating a ground-state transition at 1.005 eV and first excited transition at 1.074 eV. The joint density of states is similar in magnitude to GaAs, while the optical absorption is approximately one order of magnitude lower due to the spatially indirect optical transition in the type-II structure. The GaAsBi/GaAsN system may provide a new material system with lattice match to GaAs in a spectral range of high importance for optoelectronic devices including solar cells, photodetectors, and light emitters.

  2. Remedial investigation/feasibility study for the David Witherspoon, Inc., 901 Site, Knoxville, Tennessee: Volume 1

    SciTech Connect (OSTI)

    1996-10-01

    This remedial investigation (RI)/feasibility study (FS) supports the selection of remedial actions for the David Witherspoon, Inc. 901 Maryville Pike Site in Knoxville, Tennessee. Operations at the site, used as a recycling center, have resulted in past, present, and potential future releases of hazardous substances in to the environment. This Site is a Tennessee Superfund site. A phased approach was planned to (1) gather existing data from previous investigations managed by the Tenn. Dept. of Environment and Conservation; (2) perform a preliminary RI, including risk assessments, and an FS with existing data to identify areas where remedial action may be necessary; (3) gather additional field data to adequately define the nature and extent of risk-based contaminants that present identifiable threats to human and/or ecological receptors; and (4) develop remedial action alternatives to reduce risks to acceptable levels.

  3. Annual Performance Evaluation of a Pair of Energy Efficient Houses (WC3 and WC4) in Oak Ridge, TN

    SciTech Connect (OSTI)

    Biswas, Kaushik; Christian, Jeffrey E; Gehl, Anthony C; Jackson, Roderick K; Boudreaux, Philip R

    2012-04-01

    Beginning in 2008, two pairs of energy-saver houses were built at Wolf Creek in Oak Ridge, TN. These houses were designed to maximize energy efficiency using new ultra-high-efficiency components emerging from ORNL s Cooperative Research and Development Agreement (CRADA) partners and others. The first two houses contained 3713 square feet of conditioned area and were designated as WC1 and WC2; the second pair consisted of 2721 square feet conditioned area with crawlspace foundation and they re called WC3 and WC4. This report is focused on the annual energy performance of WC3 and WC4, and how they compare against a previously benchmarked maximum energy efficient house of a similar footprint. WC3 and WC4 are both about 55-60% more efficient than traditional new construction. Each house showcases a different envelope system: WC3 is built with advanced framing featured cellulose insulation partially mixed with phase change materials (PCM); and WC4 house has cladding composed of an exterior insulation and finish system (EIFS). The previously benchmarked house was one of three built at the Campbell Creek subdivision in Knoxville, TN. This house (CC3) was designed as a transformation of a builder house (CC1) with the most advanced energy-efficiency features, including solar electricity and hot water, which market conditions are likely to permit within the 2012 2015 period. The builder house itself was representative of a standard, IECC 2006 code-certified, all-electric house built by the builder to sell around 2005 2008.

  4. Tn-seq of Caulobacter crescentus under uranium stress reveals genes essential for detoxification and stress tolerance

    DOE PAGES-Beta [OSTI]

    Yung, Mimi C.; Park, Dan M.; Overton, K. Wesley; Blow, Matthew J.; Hoover, Cindi A.; Smit, John R.; Murray, Sean R.; Ricci, Dante P.; Christen, Beat; Bowman, Grant R.; et al

    2015-07-20

    Ubiquitous aquatic bacterium Caulobacter crescentus is highly resistant to uranium (U) and facilitates U biomineralization and thus holds promise as an agent of U bioremediation. In order to gain an understanding of how C. crescentus tolerates U, we employed transposon (Tn) mutagenesis paired with deep sequencing (Tn-seq) in a global screen for genomic elements required for U resistance. Of the 3,879 annotated genes in the C. crescentus genome, 37 were found to be specifically associated with fitness under U stress, 15 of which were subsequently tested through mutational analysis. Systematic deletion analysis revealed that mutants lacking outer membrane transporters (rsaFamore » and rsaFb), a stress-responsive transcription factor (cztR), or a ppGpp synthetase/hydrolase (spoT) exhibited a significantly lower survival rate under U stress. RsaFa and RsaFb, which are homologues of TolC in Escherichia coli, have previously been shown to mediate S-layer export. Transcriptional analysis revealed upregulation of rsaFa and rsaFb by 4- and 10-fold, respectively, in the presence of U. We additionally show that rsaFa mutants accumulated higher levels of U than the wild type, with no significant increase in oxidative stress levels. These results suggest a function for RsaFa and RsaFb in U efflux and/or maintenance of membrane integrity during U stress. In addition, we present data implicating CztR and SpoT in resistance to U stress. Together, our findings reveal novel gene targets that are key to understanding the molecular mechanisms of U resistance in C. crescentus.« less

  5. Tn-seq of Caulobacter crescentus under uranium stress reveals genes essential for detoxification and stress tolerance

    SciTech Connect (OSTI)

    Yung, Mimi C.; Park, Dan M.; Overton, K. Wesley; Blow, Matthew J.; Hoover, Cindi A.; Smit, John R.; Murray, Sean R.; Ricci, Dante P.; Christen, Beat; Bowman, Grant R.; Jiao, Yongqin

    2015-07-20

    Ubiquitous aquatic bacterium Caulobacter crescentus is highly resistant to uranium (U) and facilitates U biomineralization and thus holds promise as an agent of U bioremediation. In order to gain an understanding of how C. crescentus tolerates U, we employed transposon (Tn) mutagenesis paired with deep sequencing (Tn-seq) in a global screen for genomic elements required for U resistance. Of the 3,879 annotated genes in the C. crescentus genome, 37 were found to be specifically associated with fitness under U stress, 15 of which were subsequently tested through mutational analysis. Systematic deletion analysis revealed that mutants lacking outer membrane transporters (rsaFa and rsaFb), a stress-responsive transcription factor (cztR), or a ppGpp synthetase/hydrolase (spoT) exhibited a significantly lower survival rate under U stress. RsaFa and RsaFb, which are homologues of TolC in Escherichia coli, have previously been shown to mediate S-layer export. Transcriptional analysis revealed upregulation of rsaFa and rsaFb by 4- and 10-fold, respectively, in the presence of U. We additionally show that rsaFa mutants accumulated higher levels of U than the wild type, with no significant increase in oxidative stress levels. These results suggest a function for RsaFa and RsaFb in U efflux and/or maintenance of membrane integrity during U stress. In addition, we present data implicating CztR and SpoT in resistance to U stress. Together, our findings reveal novel gene targets that are key to understanding the molecular mechanisms of U resistance in C. crescentus.

  6. OSTIblog Articles in the University of Tennessee Topic | OSTI, US Dept of

    Office of Scientific and Technical Information (OSTI)

    Energy Office of Scientific and Technical Information University of Tennessee Topic Scientist Arthur Ragauskas is helping redefine the bioenergy research frontier by Kathy Chambers 24 Jul, 2014 in Dr. Arthur J. Ragauskas Dr. Arthur J. RagauskasIt is anticipated that the biofuels industry will have a dramatic impact on our lives, much like the petroleum industry. Alternative fuels from renewable cellulosic biomass- plant stalks, trunks, stems, and leaves-are expected to significantly reduce

  7. Tiger team assessment of the Oak Ridge Y-12 Plant, Oak Ridge, Tennessee

    SciTech Connect (OSTI)

    none,

    1990-02-01

    This document contains findings identified during the Tiger Team Compliance Assessment of the Department of Energy's (DOE's) Y-12 Plant in Oak Ridge, Tennessee. The Y-12 Plant Tiger Team Compliance Assessment is comprehensive in scope. It covers the Environmental, Safety, and Health (including Occupational Safety and Health Administration (OSHA) compliance), and Management areas and determines the plant's compliance with applicable federal (including DOE), state, and local regulations and requirements. 4 figs., 12 tabs.

  8. Y-12 employees, families and friends help East Tennessee during annual

    U.S. Department of Energy (DOE) all webpages (Extended Search)

    Volunteer Day | Y-12 National Security Complex employees, families ... Y-12 employees, families and friends help East Tennessee during annual Volunteer Day Posted: May 7, 2015 - 3:34pm Chris Clark, Contractor Assurance manager, and Rick Glass, Vice President of Mission Assurance for CNS, volunteered at the Oak Ridge Children's Museum. Y-12 National Security Complex employees, their families and friends lent helping hands to some 32 projects throughout the area - painting, landscaping,

  9. Optical and magnetotransport properties of InGaAs/GaAsSb/GaAs structures doped with a magnetic impurity

    SciTech Connect (OSTI)

    Kalentyeva, I. L. Zvonkov, B. N.; Vikhrova, O. V.; Danilov, Yu. A.; Demina, P. B.; Dorokhin, M. V.; Zdoroveyshchev, A. V.

    2015-11-15

    InGaAs/GaAsSb/GaAs bilayer quantum-well structures containing a magnetic-impurity δ-layer (Mn) at the GaAs/InGaAs interface are experimentally studied for the first time. The structures are fabricated by metal organic chemical-vapor deposition (MOCVD) and laser deposition on substrates of conducting (n{sup +}) and semi-insulating GaAs in a single growth cycle. The InGaAs-layer thickness is varied from 1.5 to 5 nm. The significant effect of a decrease in the InGaAs quantum-well thickness on the optical and magnetotransport properties of the structures under study is detected. Nonlinear magnetic-field dependence of the Hall resistance and negative magnetoresistance at temperatures of ≤30–40 K, circular polarization of the electroluminescence in a magnetic field, opposite behaviors of the photoluminescence and electroluminescence emission intensities in the structures, and an increase in the contribution of indirect transitions with decreasing InGaAs thickness are observed. Simulation shows that these effects can be caused by the influence of the δ-layer of acceptor impurity (Mn) on the band structure and the hole concentration distribution in the bilayer quantum well.

  10. AlGaAsSb/GaSb Distributed Bragg Reflectors Grown by Organometallic Vapor Phase Epitaxy

    SciTech Connect (OSTI)

    C.A. Wang; C.J. Vineis; D.R. Calawa

    2002-02-13

    The first AlGaAsSb/GaSb quarter-wave distributed Bragg reflectors grown by metallic vapor phase epitaxy are reported. The peak reflectance is 96% for a 10-period structure.

  11. Degradation mechanisms of 2 MeV proton irradiated AlGaN/GaN HEMTs...

    Office of Scientific and Technical Information (OSTI)

    irradiated AlGaNGaN HEMTs This content will become publicly available on August 26, 2016 Title: Degradation mechanisms of 2 MeV proton irradiated AlGaNGaN HEMTs Authors: ...

  12. (In,Ga)As/GaP electrical injection quantum dot laser

    SciTech Connect (OSTI)

    Heidemann, M. Höfling, S.; Kamp, M.

    2014-01-06

    The paper reports on the realization of multilayer (In,Ga)As/GaP quantum dot (QD) lasers grown by gas source molecular beam epitaxy. The QDs have been embedded in (Al,Ga)P/GaP waveguide structures. Laser operation at 710 nm is obtained for broad area laser devices with a threshold current density of 4.4 kA/cm{sup 2} at a heat-sink temperature of 80 K.

  13. Phased Construction Completion Report for Bldg. K-1401 of the Remaining Facilities Demolition Project at the East Tennessee Technology Park, Oak Ridge, Tennessee

    SciTech Connect (OSTI)

    Bechtel Jacobs

    2008-10-01

    This Phased Construction Completion Report documents the demolition of Bldg. K-1401, Maintenance Building, addressed in the Action Memorandum for the Remaining Facilities Demolition Project at East Tennessee Technology Park, Oak Ridge, Tennessee (DOE 2003a) as a Comprehensive Environmental Response, Compensation, and Liability Act of 1980 non-time-critical removal action. The objectives of the removal action (DOE 2003a) - to eliminate the source of potential contamination, to eliminate the threat of potential future releases, and/or to eliminate the threats to the general public and the environment - were met. The end state of this action is for the slab to remain with all penetrations sealed and grouted or backfilled. The basement and pits remain open. There is residual radiological and polychlorinated biphenyl contamination on the slab and basement. A fixative was applied to the area on the pad contaminated with polychlorinated biphenyls. Interim land-use controls will be maintained until final remediation decisions are made under the Zone 2 Record of Decision (DOE 2005a).

  14. Phased Construction Completion Report for Building K-1401 of the Remaining Facilities Demolition Project at the East Tennessee Technology Park Oak Ridge, Tennessee

    SciTech Connect (OSTI)

    Garland S.

    2008-03-01

    This Phased Construction Completion Report documents the demolition of Bldg. K-1401, Maintenance Building, addressed in the Action Memorandum for the Remaining Facilities Demolition Project at East Tennessee Technology Park, Oak Ridge, Tennessee (DOE 2003a) as a Comprehensive Environmental Response, Compensation, and Liability Act of 1980 non-time-critical removal action. The objectives of the removal action (DOE 2003a) - to eliminate the source of potential contamination, to eliminate the threat of potential future releases, and/or to eliminate the threats to the general public and the environment - were met. The end state of this action is for the slab to remain with all penetrations sealed and grouted or backfilled. The basement and pits remain open. There is residual radiological and polychlorinated biphenyl contamination on the slab and basement. A fixative was applied to the area on the pad contaminated with polychlorinated biphenyls. Interim land-use controls will be maintained until final remediation decisions are made under the Zone 2 Record of Decision (DOE 2005a).

  15. Environmental Baseline Survey Report for the Title Transfer of Parcel ED-9 at the East Tennessee Technology Park, Oak Ridge, Tennessee

    SciTech Connect (OSTI)

    SAIC

    2010-05-01

    This environmental baseline survey (EBS) report documents the baseline environmental conditions of the U. S. Department of Energy's (DOE's) Parcel ED-9 at the East Tennessee Technology Park (ETTP). Parcel ED-9 consists of about 13 acres that DOE proposes to transfer to Heritage Center, LLC (hereafter referred to as 'Heritage Center'), a subsidiary of the Community Reuse Organization of East Tennessee (CROET). The 13 acres include two tracts of land, referred to as ED-9A (7.06 acres) and ED-9B (5.02 acres), and a third tract consisting of about 900 linear feet of paved road and adjacent right-of-way, referred to as ED-9C (0.98 acres). Transfer of the title to ED-9 will be by deed under a Covenant Deferral Request (CDR) pursuant to Section 120(h)(3)(C) of the Comprehensive Environmental Response, Compensation, and Liability Act of 1980 (CERCLA). This report provides a summary of information to support the transfer of this government-owned property at ETTP to a non-federal entity.

  16. Covenant Deferral Request for the Proposed Transfer of Land Parcel ED-8 at the East Tennessee Technology Park, Oak Ridge, Tennessee - Final - May 2009

    SciTech Connect (OSTI)

    SAIC

    2009-05-01

    The United States Department of Energy (DOE) is proposing to transfer a land parcel (hereinafter referred to as 'the Property') designated as Land Parcel ED-8 at the East Tennessee Technology Park (ETTP) in Oak Ridge, Tennessee, by deed, and is submitting this Covenant Deferral Request (CDR) pursuant to Section 120(h)(3)(C) of the Comprehensive Environmental Response, Compensation, and Liability Act (CERCLA), as amended, and applicable U. S. Environmental Protection Agency (EPA) guidance. The Oak Ridge Reservation (ORR), which includes ETTP, was placed on the National Priorities List (NPL) in November 1989. Environmental investigation and cleanup activities are continuing at ETTP in accordance with CERCLA, the National Contingency Plan (NCP), and the Federal Facility Agreement (FFA). The FFA was entered into by the DOE-Oak Ridge Office (ORO), EPA Region 4, and the Tennessee Department of Environment and Conservation (TDEC) in 1991. The FFA establishes the schedule and milestones for environmental remediation of the ORR. The proposed property transfer is a key component of the Oak Ridge Performance Management Plan (ORPMP) for accelerated cleanup of the ORR. DOE, using its authority under Section 161(g) of the Atomic Energy Act of 1954 (AEA), proposes to transfer the Property to Heritage Center, LLC, a subsidiary of the Community Reuse Organization of East Tennessee (CROET), hereafter referred to as 'Heritage Center.' CROET is a 501(c)(3) not-for-profit corporation established to foster the diversification of the regional economy by re-utilizing DOE property for private-sector investment and job creation. The Property is located in the southern portion of ETTP and consists of approximately 84 acres proposed as the potential site for new facilities to be used for office space, industrial activities, or other commercial uses. The parcel contains both grassy fields located outside the ETTP 'main plant' area and infrastructure located inside the 'main plant' area. No

  17. US SoAtl GA Site Consumption

    U.S. Energy Information Administration (EIA) (indexed site)

    GA Site Consumption million Btu $0 $500 $1,000 $1,500 $2,000 $2,500 US SoAtl GA Expenditures dollars ALL ENERGY average per household (excl. transportation) 0 4,000 8,000 12,000 16,000 US SoAtl GA Site Consumption kilowatthours $0 $300 $600 $900 $1,200 $1,500 $1,800 US SoAtl GA Expenditures dollars ELECTRICITY ONLY average per household * Site energy consumption (89.5 million Btu) and energy expenditures per household ($2,067) in Georgia are similar to the U.S. household averages. * Per

  18. GaInP/GaAs/GaInAs Monolithic Tandem Cells for High-Performance Solar Concentrators

    SciTech Connect (OSTI)

    Wanlass, M. W.; Ahrenkiel, S. P.; Albin, D. S.; Carapella, J. J.; Duda, A.; Emery, K.; Geisz, J. F.; Jones, K.; Kurtz, S.; Moriarty, T.; Romero, M. J.

    2005-08-01

    We present a new approach for ultra-high-performance tandem solar cells that involves inverted epitaxial growth and ultra-thin device processing. The additional degree of freedom afforded by the inverted design allows the monolithic integration of high-, and medium-bandgap, lattice-matched (LM) subcell materials with lower-bandgap, lattice-mismatched (LMM) materials in a tandem structure through the use of transparent compositionally graded layers. The current work concerns an inverted, series-connected, triple-bandgap, GaInP (LM, 1.87 eV)/GaAs (LM, 1.42 eV)/GaInAs (LMM, {approx}1 eV) device structure grown on a GaAs substrate. Ultra-thin tandem devices are fabricated by mounting the epiwafers to pre-metallized Si wafer handles and selectively removing the parent GaAs substrate. The resulting handle-mounted, ultra-thin tandem cells have a number of important advantages, including improved performance and potential reclamation/reuse of the parent substrate for epitaxial growth. Additionally, realistic performance modeling calculations suggest that terrestrial concentrator efficiencies in the range of 40-45% are possible with this new tandem cell approach. A laboratory-scale (0.24 cm2), prototype GaInP/GaAs/GaInAs tandem cell with a terrestrial concentrator efficiency of 37.9% at a low concentration ratio (10.1 suns) is described, which surpasses the previous world efficiency record of 37.3%.

  19. EIS-0476: Vogtle Electric Generating Plant in Burke County, GA...

    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

    6: Vogtle Electric Generating Plant in Burke County, GA EIS-0476: Vogtle Electric Generating Plant in Burke County, GA EIS-0476: Final Environmental Impact Statement EIS-0476: ...

  20. ,"Tennessee Natural Gas Underground Storage Withdrawals (MMcf)"

    U.S. Energy Information Administration (EIA) (indexed site)

    Annual",2015 ,"Release Date:","10/31/2016" ,"Next Release Date:","11/30/2016" ,"Excel File Name:","n5060tn2a.xls" ,"Available from Web Page:","http://tonto.eia.gov/dnav/ng/hist/n5060tn2a.htm" ,"Source:","Energy Information Administration" ,"For Help, Contact:","infoctr@eia.doe.gov" ,,"(202) 586-8800",,,"10/28/2016 9:37:37 PM" "Back to

  1. ,"Tennessee Natural Gas Underground Storage Withdrawals (MMcf)"

    U.S. Energy Information Administration (EIA) (indexed site)

    Monthly","8/2016" ,"Release Date:","10/31/2016" ,"Next Release Date:","11/30/2016" ,"Excel File Name:","n5060tn2m.xls" ,"Available from Web Page:","http://tonto.eia.gov/dnav/ng/hist/n5060tn2m.htm" ,"Source:","Energy Information Administration" ,"For Help, Contact:","infoctr@eia.doe.gov" ,,"(202) 586-8800",,,"10/28/2016 9:37:38 PM" "Back

  2. ,"Tennessee Natural Gas Industrial Price (Dollars per Thousand Cubic Feet)"

    U.S. Energy Information Administration (EIA) (indexed site)

    Annual",2015 ,"Release Date:","10/31/2016" ,"Next Release Date:","11/30/2016" ,"Excel File Name:","n3035tn3a.xls" ,"Available from Web Page:","http://tonto.eia.gov/dnav/ng/hist/n3035tn3a.htm" ,"Source:","Energy Information Administration" ,"For Help, Contact:","infoctr@eia.doe.gov" ,,"(202) 586-8800",,,"10/28/2016 9:35:35 PM" "Back to

  3. ,"Tennessee Natural Gas Industrial Price (Dollars per Thousand Cubic Feet)"

    U.S. Energy Information Administration (EIA) (indexed site)

    Monthly","8/2016" ,"Release Date:","10/31/2016" ,"Next Release Date:","11/30/2016" ,"Excel File Name:","n3035tn3m.xls" ,"Available from Web Page:","http://tonto.eia.gov/dnav/ng/hist/n3035tn3m.htm" ,"Source:","Energy Information Administration" ,"For Help, Contact:","infoctr@eia.doe.gov" ,,"(202) 586-8800",,,"10/28/2016 9:35:35 PM" "Back

  4. ,"Tennessee Natural Gas Nonhydrocarbon Gases Removed (Million Cubic Feet)"

    U.S. Energy Information Administration (EIA) (indexed site)

    Annual",2015 ,"Release Date:","10/31/2016" ,"Next Release Date:","11/30/2016" ,"Excel File Name:","n9030tn2a.xls" ,"Available from Web Page:","http://tonto.eia.gov/dnav/ng/hist/n9030tn2a.htm" ,"Source:","Energy Information Administration" ,"For Help, Contact:","infoctr@eia.doe.gov" ,,"(202) 586-8800",,,"10/28/2016 10:26:30 PM" "Back to

  5. ,"Tennessee Natural Gas Nonhydrocarbon Gases Removed (Million Cubic Feet)"

    U.S. Energy Information Administration (EIA) (indexed site)

    Monthly","8/2016" ,"Release Date:","10/31/2016" ,"Next Release Date:","11/30/2016" ,"Excel File Name:","n9030tn2m.xls" ,"Available from Web Page:","http://tonto.eia.gov/dnav/ng/hist/n9030tn2m.htm" ,"Source:","Energy Information Administration" ,"For Help, Contact:","infoctr@eia.doe.gov" ,,"(202) 586-8800",,,"10/28/2016 10:26:30 PM" "Back

  6. ,"Tennessee Natural Gas Underground Storage Capacity (MMcf)"

    U.S. Energy Information Administration (EIA) (indexed site)

    Annual",2015 ,"Release Date:","10/31/2016" ,"Next Release Date:","11/30/2016" ,"Excel File Name:","n5290tn2a.xls" ,"Available from Web Page:","http://tonto.eia.gov/dnav/ng/hist/n5290tn2a.htm" ,"Source:","Energy Information Administration" ,"For Help, Contact:","infoctr@eia.doe.gov" ,,"(202) 586-8800",,,"10/28/2016 9:37:57 PM" "Back to

  7. ,"Tennessee Natural Gas Underground Storage Capacity (MMcf)"

    U.S. Energy Information Administration (EIA) (indexed site)

    Monthly","8/2016" ,"Release Date:","10/31/2016" ,"Next Release Date:","11/30/2016" ,"Excel File Name:","n5290tn2m.xls" ,"Available from Web Page:","http://tonto.eia.gov/dnav/ng/hist/n5290tn2m.htm" ,"Source:","Energy Information Administration" ,"For Help, Contact:","infoctr@eia.doe.gov" ,,"(202) 586-8800",,,"10/28/2016 9:37:58 PM" "Back

  8. ,"Tennessee Natural Gas Underground Storage Net Withdrawals (MMcf)"

    U.S. Energy Information Administration (EIA) (indexed site)

    Annual",2015 ,"Release Date:","10/31/2016" ,"Next Release Date:","11/30/2016" ,"Excel File Name:","n5070tn2a.xls" ,"Available from Web Page:","http://tonto.eia.gov/dnav/ng/hist/n5070tn2a.htm" ,"Source:","Energy Information Administration" ,"For Help, Contact:","infoctr@eia.doe.gov" ,,"(202) 586-8800",,,"10/28/2016 9:37:48 PM" "Back to

  9. ,"Tennessee Natural Gas Underground Storage Net Withdrawals (MMcf)"

    U.S. Energy Information Administration (EIA) (indexed site)

    Monthly","8/2016" ,"Release Date:","10/31/2016" ,"Next Release Date:","11/30/2016" ,"Excel File Name:","n5070tn2m.xls" ,"Available from Web Page:","http://tonto.eia.gov/dnav/ng/hist/n5070tn2m.htm" ,"Source:","Energy Information Administration" ,"For Help, Contact:","infoctr@eia.doe.gov" ,,"(202) 586-8800",,,"10/28/2016 9:37:49 PM" "Back

  10. A hole modulator for InGaN/GaN light-emitting diodes

    SciTech Connect (OSTI)

    Zhang, Zi-Hui; Kyaw, Zabu; Liu, Wei; Ji, Yun; Wang, Liancheng; Tan, Swee Tiam; Sun, Xiao Wei E-mail: VOLKAN@stanfordalumni.org; Demir, Hilmi Volkan E-mail: VOLKAN@stanfordalumni.org

    2015-02-09

    The low p-type doping efficiency of the p-GaN layer has severely limited the performance of InGaN/GaN light-emitting diodes (LEDs) due to the ineffective hole injection into the InGaN/GaN multiple quantum well (MQW) active region. The essence of improving the hole injection efficiency is to increase the hole concentration in the p-GaN layer. Therefore, in this work, we have proposed a hole modulator and studied it both theoretically and experimentally. In the hole modulator, the holes in a remote p-type doped layer are depleted by the built-in electric field and stored in the p-GaN layer. By this means, the overall hole concentration in the p-GaN layer can be enhanced. Furthermore, the hole modulator is adopted in the InGaN/GaN LEDs, which reduces the effective valance band barrier height for the p-type electron blocking layer from ?332?meV to ?294?meV at 80?A/cm{sup 2} and demonstrates an improved optical performance, thanks to the increased hole concentration in the p-GaN layer and thus the improved hole injection into the MQWs.

  11. AlGaN/GaN heterostructure prepared on a Si (110) substrate via pulsed sputtering

    SciTech Connect (OSTI)

    Watanabe, T.; Ohta, J.; Kondo, T.; Ohashi, M.; Ueno, K.; Kobayashi, A.; Fujioka, H.

    2014-05-05

    GaN films were grown on Si (110) substrates using a low-temperature growth technique based on pulsed sputtering. Reduction of the growth temperature suppressed the strain in the GaN films, leading to an increase in the critical thickness for crack formation. In addition, an AlGaN/GaN heterostructure with a flat heterointerface was prepared using this technique. Furthermore, the existence of a two dimensional electron gas at the heterointerface with a mobility of 1360 cm{sup 2}/Vs and a sheet carrier density of 1.3??10{sup 13}?cm{sup ?2} was confirmed. Finally, the use of the AlGaN/GaN heterostructure in a high electron mobility transistor was demonstrated. These results indicate that low-temperature growth via pulsed sputtering is quite promising for the fabrication of GaN-based electronic devices.

  12. Metal-interconnection-free integration of InGaN/GaN light emitting diodes with AlGaN/GaN high electron mobility transistors

    SciTech Connect (OSTI)

    Liu, Chao; Cai, Yuefei; Liu, Zhaojun; Ma, Jun; Lau, Kei May

    2015-05-04

    We report a metal-interconnection-free integration scheme for InGaN/GaN light emitting diodes (LEDs) and AlGaN/GaN high electron mobility transistors (HEMTs) by combining selective epi removal (SER) and selective epitaxial growth (SEG) techniques. SER of HEMT epi was carried out first to expose the bottom unintentionally doped GaN buffer and the sidewall GaN channel. A LED structure was regrown in the SER region with the bottom n-type GaN layer (n-electrode of the LED) connected to the HEMTs laterally, enabling monolithic integration of the HEMTs and LEDs (HEMT-LED) without metal-interconnection. In addition to saving substrate real estate, minimal interface resistance between the regrown n-type GaN and the HEMT channel is a significant improvement over metal-interconnection. Furthermore, excellent off-state leakage characteristics of the driving transistor can also be guaranteed in such an integration scheme.

  13. Audit of Economic Development Grants and a Cooperative Agreement with East Tennessee Not-For-Profit Organizations, ER-B-97-01

    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

    AUDIT OF ECONOMIC DEVELOPMENT GRANTS AND A COOPERATIVE AGREEMENT WITH EAST TENNESSEE NOT-FOR-PROFIT ORGANIZATIONS Report Number: ER-B-97-01 Eastern Regional Audit Office Date of Issue: October 22, 1996 AUDIT OF ECONOMIC DEVELOPMENT GRANTS AND A COOPERATIVE AGREEMENT WITH EAST TENNESSEE NOT-FOR-PROFIT ORGANIZATIONS TABLE OF CONTENTS Page SUMMARY..................................................... 1 PART I - APPROACH AND OVERVIEW............................. 3

  14. 2012 ARPA-E Energy Innovation Summit Keynote Presentation (Frederick W. Smith, FedEx Corporation), with Introduction by Senator Lamar Alexander (TN)

    ScienceCinema (OSTI)

    Smith, Frederick W. (FedEx Corporation, Chairman, President and CEO)

    2014-04-09

    The third annual ARPA-E Energy Innovation Summit was held in Washington D.C. in February, 2012. The event brought together key players from across the energy ecosystem - researchers, entrepreneurs, investors, corporate executives, and government officials - to share ideas for developing and deploying the next generation of energy technologies. Following introduction by Senator Lamar Alexander of Tennessee, Frederick W. Smith, Chairman, President, and CEO of FedEx Corporation, gave the third keynote presentation of the day.

  15. 2012 ARPA-E Energy Innovation Summit Keynote Presentation (Frederick W. Smith, FedEx Corporation), with Introduction by Senator Lamar Alexander (TN)

    SciTech Connect (OSTI)

    Smith, Frederick W.

    2012-04-24

    The third annual ARPA-E Energy Innovation Summit was held in Washington D.C. in February, 2012. The event brought together key players from across the energy ecosystem - researchers, entrepreneurs, investors, corporate executives, and government officials - to share ideas for developing and deploying the next generation of energy technologies. Following introduction by Senator Lamar Alexander of Tennessee, Frederick W. Smith, Chairman, President, and CEO of FedEx Corporation, gave the third keynote presentation of the day.

  16. Explanation of Significant Differences for the Record of Decision for Interim Actions in Zone 1, East Tennessee Technology Park, Oak Ridge, Tennessee

    SciTech Connect (OSTI)

    Bechtel Jacobs

    2011-02-01

    Zone 1 is a 1400-acre area outside the fence of the main plant at The East Tennessee Technology Park (ETTP) in Oak Ridge, Tennessee. The Record of Decision for Interim Actions in Zone, ETTP (Zone 1 Interim ROD) (DOE 2002) identifies the remedial actions for contaminated soil, buried waste, and subsurface infrastructure necessary to protect human health and to limit further contamination of groundwater. Since the Zone 1 Interim Record of Decision (ROD) was signed, new information has been obtained that requires the remedy to be modified as follows: (1) Change the end use in Contractor's Spoil Area (CSA) from unrestricted industrial to recreational; (2) Remove Exposure Units (EU5) ZI-50, 51, and 52 from the scope of the Zone I Interim ROD; (3) Change the end use of the duct bank corridor from unrestricted industrial to restricted industrial; and (4) Remove restriction for the disturbance of soils below 10 feet in Exposure Unit (EU) Z1-04. In accordance with 40 Code of Federal Regulations (CFR) 300.435, these scope modifications are a 'significant' change to the Zone 1 Interim ROD. In accordance with CERCLA Sect. 117 (c) and 40 CFR 300.435 (c)(2)(i), such a significant change is documented with an Explanation of Significant Differences (ESD). The purpose of this ESD is to make the changes listed above. This ESD is part of the Administrative Record file, and it, and other information supporting the selected remedy, can be found at the DOE Information Center, 475 Oak Ridge Turnpike, Oak Ridge, Tennessee 37830, from 8:00 a.m. to 5:00 p.m., Monday through Friday. The ORR is located in Roane and Anderson counties, within and adjacent to the corporate city limits of Oak Ridge, Tennessee. ETTP is located in Roane County near the northwest corner of the ORR. ETTP began operation during World War II as part of the Manhattan Project. The original mission of ETTP was to produce enriched uranium for use in atomic weapons. The plant produced enriched uranium from 1945 until 1985

  17. Engineering Evaluation Report on K-311-1 Floor Subsidence (2008 Annual Report) at the East Tennessee Technology Park, Oak Ridge, Tennessee

    SciTech Connect (OSTI)

    Knott R.B.

    2008-11-13

    The purpose of this task is to evaluate the effect of floor settlement on building structure, piping, and equipment foundations between column lines 1 and 2 and B and K of Bldg. K-311-1 (see Fig. A-1 in Appendix A) at East Tennessee Technology Park (ETTP), Oak Ridge, Tennessee. Revision 0 of this document covers the 2005 annual inspection. Revision 1 addresses the 2006 annual inspection, Revision 2 addresses the 2007 annual inspection, and Revision 3 covers the 2008 annual inspection, as indicated by the changed report title. A civil survey and visual inspection were performed. Only a representative number of points were measured during the 2008 survey. The exact location of a number of survey points in Table A-1 could not be accurately determined in the 2008 survey since these points had not been spray painted since 2003. The points measured are deemed adequate to support the conclusions of this report. Based on the survey and observations, there has been no appreciable change in the condition of the unit since the 2007 inspection. The subsidence of the floor presents concerns to the building structure due to the possible indeterminate load on the pipe gallery framing. Prior to demolition activities that involve the piping or removal of the equipment, such as vent, purge and drain and foaming, engineering involvement in the planning is necessary. The piping connected to the equipment is under stress, and actions should be implemented to relieve this stress prior to disturbing any of the equipment or associated piping. In addition, the load on the pipe gallery framing needs to be relieved prior to any activities taking place in the pipe gallery. Access to this area and the pipe gallery is not allowed until the stress is released.

  18. Carrier quenching in InGaP/GaAs double heterostructures

    SciTech Connect (OSTI)

    Wells, Nathan P. Driskell, Travis U.; Hudson, Andrew I.; LaLumondiere, Stephen D.; Lotshaw, William T.; Forbes, David V.; Hubbard, Seth M.

    2015-08-14

    Photoluminescence measurements on a series of GaAs double heterostructures demonstrate a rapid quenching of carriers in the GaAs layer at irradiance levels below 0.1 W/cm{sup 2} in samples with a GaAs-on-InGaP interface. These results indicate the existence of non-radiative defect centers at or near the GaAs-on-InGaP interface, consistent with previous reports showing the intermixing of In and P when free As impinges on the InGaP surface during growth. At low irradiance, these defect centers can lead to sub-ns carrier lifetimes. The defect centers involved in the rapid carrier quenching can be saturated at higher irradiance levels and allow carrier lifetimes to reach hundreds of nanoseconds. To our knowledge, this is the first report of a nearly three orders of magnitude decrease in carrier lifetime at low irradiance in a simple double heterostructure. Carrier quenching occurs at irradiance levels near the integrated Air Mass Zero (AM0) and Air Mass 1.5 (AM1.5) solar irradiance. Additionally, a lower energy photoluminescence band is observed both at room and cryogenic temperatures. The temperature and time dependence of the lower energy luminescence is consistent with the presence of an unintentional InGaAs or InGaAsP quantum well that forms due to compositional mixing at the GaAs-on-InGaP interface. Our results are of general interest to the photovoltaic community as InGaP is commonly used as a window layer in GaAs based solar cells.

  19. Tennessee Natural Gas Lease and Plant Fuel Consumption (Million Cubic Feet)

    U.S. Energy Information Administration (EIA) (indexed site)

    and Plant Fuel Consumption (Million Cubic Feet) Tennessee Natural Gas Lease and Plant Fuel Consumption (Million Cubic Feet) Decade Year-0 Year-1 Year-2 Year-3 Year-4 Year-5 Year-6 Year-7 Year-8 Year-9 1960's 355 753 986 1970's 1,265 1,524 1,150 1,263 1,087 387 537 509 516 616 1980's 0 0 78 113 153 138 98 93 60 45 1990's 74 44 39 49 44 47 37 45 31 - = No Data Reported; -- = Not Applicable; NA = Not Available; W = Withheld to avoid disclosure of individual company data. Release Date: 10/31/2016

  20. Tennessee Natural Gas Number of Gas and Gas Condensate Wells (Number of

    U.S. Energy Information Administration (EIA) (indexed site)

    Elements) Gas and Gas Condensate Wells (Number of Elements) Tennessee Natural Gas Number of Gas and Gas Condensate Wells (Number of Elements) Decade Year-0 Year-1 Year-2 Year-3 Year-4 Year-5 Year-6 Year-7 Year-8 Year-9 1980's 700 1990's 690 650 600 505 460 420 2000's 380 350 400 430 280 400 330 305 285 310 2010's 230 1,027 1,027 1,089 NA NA - = No Data Reported; -- = Not Applicable; NA = Not Available; W = Withheld to avoid disclosure of individual company data. Release Date: 10/31/2016 Next

  1. Tennessee Renewable Electric Power Industry Net Summer Capacity, by Energy Source

    U.S. Energy Information Administration (EIA) (indexed site)

    Tennessee" "Energy Source",2006,2007,2008,2009,2010 "Geothermal","-","-","-","-","-" "Hydro Conventional",2638,2635,2639,2614,2624 "Solar","-","-","-","-","-" "Wind",29,29,29,29,29 "Wood/Wood Waste",147,165,165,165,185 "MSW/Landfill Gas",5,8,8,8,6 "Other Biomass",2,2,2,2,2

  2. 2003 East Tennessee Technology Park Annual Illness and Injury Surveillance Report

    SciTech Connect (OSTI)

    U.S. Department of Energy, Office of Health, Safety and Security, Office of Illness and Injury Prevention Programs

    2007-05-23

    Annual Illness and Injury Surveillance Program report for 2003 for the East Tennessee Technology Park (K-25).The U.S. Department of Energy’s (DOE) commitment to assuring the health and safety of its workers includes the conduct of epidemiologic surveillance activities that provide an early warning system for health problems among workers. The Illness and Injury Surveillance Program monitors illnesses and health conditions that result in an absence of workdays, occupational injuries and illnesses, and disabilities and deaths among current workers.

  3. EERE Success Story-Tennessee: Ground-Source Heat Pump Receives Innovation

    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

    Award at AHR Expo | Department of Energy Ground-Source Heat Pump Receives Innovation Award at AHR Expo EERE Success Story-Tennessee: Ground-Source Heat Pump Receives Innovation Award at AHR Expo August 16, 2013 - 12:00am Addthis The new Trilogy 40 Q-Mode(tm) series, a highly efficient ground-source heat pump that has the capability of providing all the space heating, cooling, and water heating requirements for a residential or small commercial building, was recently awarded a 2013 AHR Expo

  4. Lead test assembly irradiation and analysis Watts Bar Nuclear Plant, Tennessee and Hanford Site, Richland, Washington

    SciTech Connect (OSTI)

    1997-07-01

    The U.S. Department of Energy (DOE) needs to confirm the viability of using a commercial light water reactor (CLWR) as a potential source for maintaining the nation`s supply of tritium. The Proposed Action discussed in this environmental assessment is a limited scale confirmatory test that would provide DOE with information needed to assess that option. This document contains the environmental assessment results for the Lead test assembly irradiation and analysis for the Watts Bar Nuclear Plant, Tennessee, and the Hanford Site in Richland, Washington.

  5. Management initiatives to waste management decisions and environmental compliance in Oak Ridge, Tennessee

    SciTech Connect (OSTI)

    Jones, C.G.

    1988-01-01

    Martin Marietta Energy Systems, Inc. (MMES) has been the operating contractor for the nuclear production and research facilities at Oak Ridge, Tennessee and Paducah, Kentucky for about four and one-half years. Environmental compliance, regulatory interaction, and public confidence have been very significant issues during this time. This presentation will review the environmental situation in Oak Ridge in 1984 and will discuss management initiatives and experience in the development and implementation of effective environmental and waste management and health and safety programs committed to the protection of the environment, our workers and the public with an overall goal of full compliance with all current and anticipated regulations.

  6. Overview of fuel alcohol from agricultural crops with emphasis on the Tennessee Valley. Bulletin Y-171

    SciTech Connect (OSTI)

    Roetheli, J.C.; Pile, R.S.; Young, H.C.

    1982-02-01

    An overview is presented of the factors and concerns associated with producing fuel alcohol from agricultural crops. Areas covered include: an assessment of energy used in agriculture; a categorization of grain crop production, land suitable for energy crop production, and livestock production in the 201-county TVA region; a summary of technical and economic information on fuel alcohol production; a discussion of acreages required to produce fuel for benchmark farms in the Tennessee Valley and possible erosion impacts; and a discussion of other pertinent advantages and disadvantages of fuel alcohol production from crops.

  7. ,"Tennessee Natural Gas Gross Withdrawals and Production"

    U.S. Energy Information Administration (EIA) (indexed site)

    and Production" ,"Click worksheet name or tab at bottom for data" ,"Worksheet Name","Description","# Of Series","Frequency","Latest Data for" ,"Data 1","Tennessee Natural Gas Gross Withdrawals and Production",10,"Annual",2015,"06/30/1967" ,"Release Date:","10/31/2016" ,"Next Release Date:","11/30/2016" ,"Excel File

  8. ,"Tennessee Natural Gas Input Supplemental Fuels (MMcf)"

    U.S. Energy Information Administration (EIA) (indexed site)

    Input Supplemental Fuels (MMcf)" ,"Click worksheet name or tab at bottom for data" ,"Worksheet Name","Description","# Of Series","Frequency","Latest Data for" ,"Data 1","Tennessee Natural Gas Input Supplemental Fuels (MMcf)",1,"Annual",2015 ,"Release Date:","10/31/2016" ,"Next Release Date:","11/30/2016" ,"Excel File Name:","na1400_stn_2a.xls"

  9. ,"Tennessee Natural Gas LNG Storage Additions (MMcf)"

    U.S. Energy Information Administration (EIA) (indexed site)

    Additions (MMcf)" ,"Click worksheet name or tab at bottom for data" ,"Worksheet Name","Description","# Of Series","Frequency","Latest Data for" ,"Data 1","Tennessee Natural Gas LNG Storage Additions (MMcf)",1,"Annual",2015 ,"Release Date:","10/31/2016" ,"Next Release Date:","11/30/2016" ,"Excel File Name:","na1330_stn_2a.xls" ,"Available

  10. ,"Tennessee Natural Gas LNG Storage Net Withdrawals (MMcf)"

    U.S. Energy Information Administration (EIA) (indexed site)

    Net Withdrawals (MMcf)" ,"Click worksheet name or tab at bottom for data" ,"Worksheet Name","Description","# Of Series","Frequency","Latest Data for" ,"Data 1","Tennessee Natural Gas LNG Storage Net Withdrawals (MMcf)",1,"Annual",2015 ,"Release Date:","10/31/2016" ,"Next Release Date:","11/30/2016" ,"Excel File Name:","na1350_stn_2a.xls"

  11. ,"Tennessee Natural Gas LNG Storage Withdrawals (MMcf)"

    U.S. Energy Information Administration (EIA) (indexed site)

    Withdrawals (MMcf)" ,"Click worksheet name or tab at bottom for data" ,"Worksheet Name","Description","# Of Series","Frequency","Latest Data for" ,"Data 1","Tennessee Natural Gas LNG Storage Withdrawals (MMcf)",1,"Annual",2015 ,"Release Date:","10/31/2016" ,"Next Release Date:","11/30/2016" ,"Excel File Name:","na1340_stn_2a.xls"

  12. ,"Tennessee Natural Gas Lease Fuel Consumption (MMcf)"

    U.S. Energy Information Administration (EIA) (indexed site)

    Fuel Consumption (MMcf)" ,"Click worksheet name or tab at bottom for data" ,"Worksheet Name","Description","# Of Series","Frequency","Latest Data for" ,"Data 1","Tennessee Natural Gas Lease Fuel Consumption (MMcf)",1,"Annual",2015 ,"Release Date:","10/31/2016" ,"Next Release Date:","11/30/2016" ,"Excel File Name:","na1840_stn_2a.xls"

  13. ,"Tennessee Natural Gas Plant Fuel Consumption (MMcf)"

    U.S. Energy Information Administration (EIA) (indexed site)

    Fuel Consumption (MMcf)" ,"Click worksheet name or tab at bottom for data" ,"Worksheet Name","Description","# Of Series","Frequency","Latest Data for" ,"Data 1","Tennessee Natural Gas Plant Fuel Consumption (MMcf)",1,"Annual",2015 ,"Release Date:","10/31/2016" ,"Next Release Date:","11/30/2016" ,"Excel File Name:","na1850_stn_2a.xls"

  14. ,"Tennessee Natural Gas Plant Liquids Production (Million Cubic Feet)"

    U.S. Energy Information Administration (EIA) (indexed site)

    Liquids Production (Million Cubic Feet)" ,"Click worksheet name or tab at bottom for data" ,"Worksheet Name","Description","# Of Series","Frequency","Latest Data for" ,"Data 1","Tennessee Natural Gas Plant Liquids Production (Million Cubic Feet)",1,"Annual",2015 ,"Release Date:","10/31/2016" ,"Next Release Date:","11/30/2016" ,"Excel File

  15. ,"Tennessee Natural Gas Processed (Million Cubic Feet)"

    U.S. Energy Information Administration (EIA) (indexed site)

    Processed (Million Cubic Feet)" ,"Click worksheet name or tab at bottom for data" ,"Worksheet Name","Description","# Of Series","Frequency","Latest Data for" ,"Data 1","Tennessee Natural Gas Processed (Million Cubic Feet)",1,"Annual",2015 ,"Release Date:","10/31/2016" ,"Next Release Date:","11/30/2016" ,"Excel File Name:","na1180_stn_2a.xls"

  16. ,"Tennessee Natural Gas Vehicle Fuel Price (Dollars per Thousand Cubic Feet)"

    U.S. Energy Information Administration (EIA) (indexed site)

    Price (Dollars per Thousand Cubic Feet)" ,"Click worksheet name or tab at bottom for data" ,"Worksheet Name","Description","# Of Series","Frequency","Latest Data for" ,"Data 1","Tennessee Natural Gas Vehicle Fuel Price (Dollars per Thousand Cubic Feet)",1,"Annual",2012 ,"Release Date:","10/31/2016" ,"Next Release Date:","11/30/2016" ,"Excel File

  17. ,"Tennessee Natural Gas Wellhead Price (Dollars per Thousand Cubic Feet)"

    U.S. Energy Information Administration (EIA) (indexed site)

    Wellhead Price (Dollars per Thousand Cubic Feet)" ,"Click worksheet name or tab at bottom for data" ,"Worksheet Name","Description","# Of Series","Frequency","Latest Data for" ,"Data 1","Tennessee Natural Gas Wellhead Price (Dollars per Thousand Cubic Feet)",1,"Annual",2010 ,"Release Date:","10/31/2016" ,"Next Release Date:","11/30/2016" ,"Excel File

  18. COMPARISON OF RESULTS FOR QUARTER 4 SURFACE WATER SPLIT SAMPLES COLLECTED AT THE NUCLEAR FUELS SERVICES SITE, ERWIN, TN

    SciTech Connect (OSTI)

    none,

    2013-08-15

    Oak Ridge Associated Universities (ORAU), under the Oak Ridge Institute for Science and Education (ORISE) contract, collected split surface water samples with Nuclear Fuel Services (NFS) representatives on June 12, 2013. Representatives from the U.S. Nuclear Regulatory Commission (NRC) and the Tennessee Department of Environment and Conservation were also in attendance. Samples were collected at four surface water stations, as required in the approved Request for Technical Assistance number 11-018. These stations included Nolichucky River upstream (NRU), Nolichucky River downstream (NRD), Martin Creek upstream (MCU), and Martin Creek downstream (MCD). Both ORAU and NFS performed gross alpha and gross beta analyses, and Table 1 presents the comparison of results using the duplicate error ratio (DER), also known as the normalized absolute difference. A DER ≤ 3 indicates at a 99% confidence interval that split sample results do not differ significantly when compared to their respective one standard deviation (sigma) uncertainty (ANSI N42.22). The NFS split sample report specifies 95% confidence level of reported uncertainties (NFS 2013). Therefore, standard two sigma reporting values were divided by 1.96. In conclusion, most DER values were less than 3 and results are consistent with low (e.g., background) concentrations. The gross beta result for sample 5198W0014 was the exception. The ORAU gross beta result of 6.30 ± 0.65 pCi/L from location NRD is well above NFS's non-detected result of 1.56 ± 0.59 pCi/L. NFS's data package includes no detected result for any radionuclide at location NRD. At NRC's request, ORAU performed gamma spectroscopic analysis of sample 5198W0014 to identify analytes contributing to the relatively elevated gross beta results. This analysis identified detected amounts of naturally-occurring constituents, most notably Ac-228 from the thorium decay series, and does not suggest the presence of site-related contamination.

  19. Accelerated aging of GaAs concentrator solar cells

    SciTech Connect (OSTI)

    Gregory, P.E.

    1982-04-01

    An accelerated aging study of AlGaAs/GaAs solar cells has been completed. The purpose of the study was to identify the possible degradation mechanisms of AlGaAs/GaAs solar cells in terrestrial applications. Thermal storage tests and accelerated AlGaAs corrosion studies were performed to provide an experimental basis for a statistical analysis of the estimated lifetime. Results of this study suggest that a properly designed and fabricated AlGaAs/GaAs solar cell can be mechanically rugged and environmentally stable with projected lifetimes exceeding 100 years.

  20. Synthesis, morphology and optical properties of GaN and AlGaN semiconductor nanostructures

    SciTech Connect (OSTI)

    Kuppulingam, B. Singh, Shubra Baskar, K.

    2014-04-24

    Hexagonal Gallium Nitride (GaN) and Aluminum Gallium Nitride (AlGaN) nanoparticles were synthesized by sol-gel method using Ethylene Diamine Tetra Acetic acid (EDTA) complex route. Powder X-ray diffraction (PXRD) analysis confirms the hexagonal wurtzite structure of GaN and Al{sub 0.25}Ga{sub 0.75}N nanoparticles. Surface morphology and elemental analysis were carried out by Scanning Electron Microscope (SEM) and Energy Dispersive X-ray spectroscopy (EDX). The room temperature Photoluminescence (PL) study shows the near band edge emission for GaN at 3.35 eV and at 3.59 eV for AlGaN nanoparticles. The Aluminum (Al) composition of 20% has been obtained from PL emission around 345 nm.

  1. Zinc blende GaAs films grown on wurtzite GaN/sapphire templates

    SciTech Connect (OSTI)

    Chaldyshev, V.V.; Nielsen, B.; Mendez, E.E.; Musikhin, Yu.G.; Bert, N.A.; Ma, Zh.; Holden, Todd

    2005-03-28

    1-{mu}m-thick zinc-blende GaAs (111) films were grown by molecular-beam epitaxy on wurtzite GaN/sapphire (0001) templates. In spite of a {approx}20% lattice mismatch, epitaxial growth was realized, so that the GaAs films showed good adhesion and their surface had a larger mirror-like area with an average surface roughness of 10 nm. Transmission electron microscopy revealed a flat and abrupt epitaxial GaAs/GaN interface with some nanocavities and a large number of dislocations. Reasonably good crystalline quality of the GaAs films was confirmed by Raman characterization. Spectroscopic ellipsometry showed sharp interference fringes and characteristic parameters in the range of 0.75-5.3 eV. Photoluminescence study revealed extended band tails and dominance of non-radiative carrier recombination.

  2. High-performance InGaP/GaAs pnp {delta}-doped heterojunction bipolar transistor

    SciTech Connect (OSTI)

    Tsai, J.-H. Chiu, S.-Y.; Lour, W.-S.; Guo, D.-F.

    2009-07-15

    In this article, a novel InGaP/GaAs pnp {delta}-doped heterojunction bipolar transistor is first demonstrated. Though the valence band discontinuity at InGaP/GaAs heterojunction is relatively large, the addition of a {delta}-doped sheet between two spacer layers at the emitter-base (E-B) junction effectively eliminates the potential spike and increases the confined barrier for electrons, simultaneously. Experimentally, a high current gain of 25 and a relatively low E-B offset voltage of 60 mV are achieved. The offset voltage is much smaller than the conventional InGaP/GaAs pnp HBT. The proposed device could be used for linear amplifiers and low-power complementary integrated circuit applications.

  3. Oxidation of ultrathin GaSe

    SciTech Connect (OSTI)

    Thomas Edwin Beechem; McDonald, Anthony E.; Ohta, Taisuke; Howell, Stephen W.; Kalugin, Nikolai G.; Kowalski, Brian M.; Brumbach, Michael T.; Spataru, Catalin D.; Pask, Jesse A.

    2015-10-26

    Oxidation of exfoliated gallium selenide (GaSe) is investigated through Raman, photoluminescence, Auger, and X-ray photoelectron spectroscopies. Photoluminescence and Raman intensity reductions associated with spectral features of GaSe are shown to coincide with the emergence of signatures emanating from the by-products of the oxidation reaction, namely, Ga2Se3 and amorphous Se. Furthermore, photoinduced oxidation is initiated over a portion of a flake highlighting the potential for laser based patterning of two-dimensional heterostructures via selective oxidation.

  4. Oxidation of ultrathin GaSe

    DOE PAGES-Beta [OSTI]

    Thomas Edwin Beechem; McDonald, Anthony E.; Ohta, Taisuke; Howell, Stephen W.; Kalugin, Nikolai G.; Kowalski, Brian M.; Brumbach, Michael T.; Spataru, Catalin D.; Pask, Jesse A.

    2015-10-26

    Oxidation of exfoliated gallium selenide (GaSe) is investigated through Raman, photoluminescence, Auger, and X-ray photoelectron spectroscopies. Photoluminescence and Raman intensity reductions associated with spectral features of GaSe are shown to coincide with the emergence of signatures emanating from the by-products of the oxidation reaction, namely, Ga2Se3 and amorphous Se. Furthermore, photoinduced oxidation is initiated over a portion of a flake highlighting the potential for laser based patterning of two-dimensional heterostructures via selective oxidation.

  5. Highly uniform, multi-stacked InGaAs/GaAs quantum dots embedded in a GaAs nanowire

    SciTech Connect (OSTI)

    Tatebayashi, J. Ota, Y.; Ishida, S.; Nishioka, M.; Iwamoto, S.; Arakawa, Y.

    2014-09-08

    We demonstrate a highly uniform, dense stack of In{sub 0.22}Ga{sub 0.78}As/GaAs quantum dot (QD) structures in a single GaAs nanowire (NW). The size (and hence emission energy) of individual QD is tuned by careful control of the growth conditions based on a diffusion model of morphological evolution of NWs and optical characterization. By carefully tailoring the emission energies of individual QD, dot-to-dot inhomogeneous broadening of QD stacks in a single NW can be as narrow as 9.3?meV. This method provides huge advantages over traditional QD stack using a strain-induced Stranski-Krastanow growth scheme. We show that it is possible to fabricate up to 200 uniform QDs in single GaAs NWs using this growth technique without degradation of the photoluminescence intensity.

  6. Simplified 2DEG carrier concentration model for composite barrier AlGaN/GaN HEMT

    SciTech Connect (OSTI)

    Das, Palash Biswas, Dhrubes

    2014-04-24

    The self consistent solution of Schrodinger and Poisson equations is used along with the total charge depletion model and applied with a novel approach of composite AlGaN barrier based HEMT heterostructure. The solution leaded to a completely new analytical model for Fermi energy level vs. 2DEG carrier concentration. This was eventually used to demonstrate a new analytical model for the temperature dependent 2DEG carrier concentration in AlGaN/GaN HEMT.

  7. Ultra-high frequency photoconductivity decay in GaAs/Ge/GaAs double heterostructure grown by molecular beam epitaxy

    SciTech Connect (OSTI)

    Hudait, M. K.; Zhu, Y.; Johnston, S. W.; Maurya, D.; Priya, S.; Umbel, R.

    2013-03-04

    GaAs/Ge/GaAs double heterostructures (DHs) were grown in-situ using two separate molecular beam epitaxy chambers. High-resolution x-ray rocking curve demonstrates a high-quality GaAs/Ge/GaAs heterostructure by observing Pendelloesung oscillations. The kinetics of the carrier recombination in Ge/GaAs DHs were investigated using photoconductivity decay measurements by the incidence excitation from the front and back side of 15 nm GaAs/100 nm Ge/0.5 {mu}m GaAs/(100)GaAs substrate structure. High-minority carrier lifetimes of 1.06-1.17 {mu}s were measured when excited from the front or from the back of the Ge epitaxial layer, suggests equivalent interface quality of GaAs/Ge and Ge/GaAs. Wavelength-dependent minority carrier recombination properties are explained by the wavelength-dependent absorption coefficient of Ge.

  8. Magnetic coupling in ferromagnetic semiconductor (Ga,Mn)As/(Al,Ga,Mn)As bilayers

    SciTech Connect (OSTI)

    Wang, M.; Wadley, P.; Campion, R. P.; Rushforth, A. W.; Edmonds, K. W.; Gallagher, B. L.; Charlton, T. R.; Kinane, C. J.; Langridge, S.

    2015-08-07

    We report on a study of ferromagnetic semiconductor (Ga,Mn)As/(Al,Ga,Mn)As bilayers using magnetometry and polarized neutron reflectivity (PNR). From depth-resolved characterization of the magnetic structure obtained by PNR, we concluded that the (Ga,Mn)As and (Al,Ga,Mn)As layers have in-plane and perpendicular-to-plane magnetic easy axes, respectively, with weak interlayer coupling. Therefore, the layer magnetizations align perpendicular to each other under low magnetic fields and parallel at high fields.

  9. ESPC Workshop (Nashville, TN)

    Energy.gov [DOE]

    This three-day workshop educates attendees on how to implement energy and water projects through an energy savings performance contract (ESPC).

  10. Final review of the Campbell Creek demonstrations showcased by Tennessee Valley Authority

    SciTech Connect (OSTI)

    Gehl, Anthony C.; Munk, Jeffrey D.; Jackson, Roderick K.; Boudreaux, Philip R.; Miller, William A.; New, Joshua Ryan; Khowailed, Giannate

    2015-06-01

    The Tennessee Valley Authority (TVA) Technology Innovation, Energy Efficiency, Power Delivery and Utilization Office funded and managed a showcase demonstration located in the suburbs of west Knox county, Tennessee. Work started March 2008 with the goal of documenting best practices for retrofitting existing homes and for building new high-efficiency homes. The Oak Ridge National Laboratory and the Electric Power Research Institute (EPRI) provided technical support. An analytical base was developed for helping homeowners, homebuyers, builders, practitioners and the TVA make informed economic decisions for the materials and incentives necessary to build a new high-efficiency home or retrofit an existing home. New approaches to more efficiently control active energy subsystems and information for selecting or upgrading to Energy Star appliances, changing all lights to 100% CFL s and upgrading windows to low-E gas filled glazing yields a 40% energy savings with neutral cash flow for the homeowner. Passive designs were reviewed and recommendations made for envelope construction that is durable and energy efficient. The Campbell Creek project complements the DOE Building Technologies Program strategic goal. Results of the project created technologies and design approaches that will yield affordable energy efficient homes. The 2010 DOE retrofit goals are to find retrofit packages that attain 30% whole house energy savings as documented by pre and post Home Energy rating scores (HERS). Campbell Creek met these goals.

  11. Assessing multimetric aspects of sustainability: Application to a bioenergy crop production system in East Tennessee

    DOE PAGES-Beta [OSTI]

    Parish, Esther S.; Dale, Virginia H.; English, Burton C.; Jackson, Samuel W.; Tyler, Donald D.

    2016-02-26

    This paper connects the science of sustainability theory with applied aspects of sustainability deployment. A suite of 35 sustainability indicators spanning six environmental, three economic, and three social categories has been proposed for comparing the sustainability of bioenergy production systems across different feedstock types and locations. A recent demonstration-scale switchgrass-to-ethanol production system located in East Tennessee is used to assess the availability of sustainability indicator data and associated measurements for the feedstock production and logistics portions of the biofuel supply chain. Knowledge pertaining to the available indicators is distributed within a hierarchical decision tree framework to generate an assessment ofmore » the overall sustainability of this no-till switchgrass production system relative to two alternative business-as-usual scenarios of unmanaged pasture and tilled corn production. The relative contributions of the social, economic and environmental information are determined for the overall trajectory of this bioenergy system s sustainability under each scenario. Within this East Tennessee context, switchgrass production shows potential for improving environmental and social sustainability trajectories without adverse economic impacts, thereby leading to potential for overall enhancement in sustainability within this local agricultural system. Given the early stages of cellulosic ethanol production, it is currently difficult to determine quantitative values for all 35 sustainability indicators across the entire biofuel supply chain. This case study demonstrates that integration of qualitative sustainability indicator ratings may increase holistic understanding of a bioenergy system in the absence of complete information.« less

  12. Routine environmental audit of the Y-12 Plant, Oak Ridge, Tennessee

    SciTech Connect (OSTI)

    1994-09-01

    This report documents the results of the routine environmental audit of the Oak Ridge Y-12 Plant (Y-12 Plant), Anderson County, Tennessee. During this audit, the activities conducted by the audit team included reviews of internal documents and reports from previous audits and assessments; interviews with U.S. Department of Energy (DOE), State of Tennessee regulatory, and contractor personnel; and inspections and observations of selected facilities and operations. The onsite portion of the audit was conducted August 22-September 2, 1994, by the DOE Office of Environmental Audit (EH-24), located within the Office of Environment, Safety and Health (EH). DOE 5482.1 B, {open_quotes}Environment, Safety, and Health Appraisal Program,{close_quotes} establishes the mission of EH-24 to provide comprehensive, independent oversight of DOE environmental programs on behalf of the Secretary of Energy. The ultimate goal of EH-24 is enhancement of environmental protection and minimization of risk to public health and the environment. EH-24 accomplishes its mission by conducting systematic and periodic evaluations of DOE`s environmental programs within line organizations, and by using supplemental activities that strengthen self-assessment and oversight functions within program, field, and contractor organizations. The audit evaluated the status of programs to ensure compliance with Federal, state, and local environmental laws and regulations; compliance with DOE Orders, guidance, and directives; and conformance with accepted industry practices and standards of performance. The audit also evaluated the status and adequacy of the management systems developed to address environmental requirements.

  13. Tennessee health studies agreement. Annual report for year 4, January 1--December 31, 1995

    SciTech Connect (OSTI)

    1996-04-01

    The Tennessee Department of Health (TDH) has completed the fourth full year of the Oak Ridge Health Studies Agreement grant. This report summarizes the accomplishments and concerns of the State for the period January 1, 1995, to December 31, 1995. The focus of work during the fourth grant year was the actual work on the dose reconstruction. The final work plan for Task 5, Plan to Perform a Systematic Document Search was received in November 1994. Final work plans for Task 1, Investigation of Radioiodine from Radioactive Lanthanum Processing; Task 2, Investigation of Mercury Releases from Lithium Enrichment; Task 3, Investigation of Releases of PCBs from Oak Ridge Facilities; and Task 4, Investigation of Releases of Radionuclides from White Oak Creek to the Clinch River, were received in February 1995. Final work plans for Task 6, Investigation of the Quality of Historical Uranium Effluent Monitoring at Oak Ridge Facilities; and Task 7, Additional Screening of Materials Not Evaluated in the Dose Reconstruction Feasibility Study, were received in April 1995. ChemRisk`s 4th Quarterly Report, for October through December 1995, is included in Attachment 1. Attachment 2 contains a study which developed a quality improvement program for data imported to the Tennessee Cancer Reporting System and Birth Defects Verification Program.

  14. Wireless Roadside Inspection Phase II Tennessee Commercial Mobile Radio Services Pilot Test Final Report

    SciTech Connect (OSTI)

    Franzese, Oscar; Lascurain, Mary Beth; Capps, Gary J; Siekmann, Adam

    2011-05-01

    The Federal Motor Carrier Safety Administration (FMCSA) Wireless Roadside Inspection (WRI) Program is researching the feasibility and value of electronically assessing truck and bus driver and vehicle safety at least 25 times more often than is possible using only roadside physical inspections. The WRI program is evaluating the potential benefits to both the motor carrier industry and to government. These potential benefits include reduction in accidents, fatalities and injuries on our highways and keeping safe and legal drivers and vehicles moving on the highways. WRI Pilot tests were conducted to prototype, test and demonstrate the feasibility and benefits of electronically collecting safety data message sets from in-service commercial vehicles and performing wireless roadside inspections using three different communication methods. This report summarizes the design, conduct and results of the Tennessee CMRS WRI Pilot Test. The purpose of this Pilot test was to demonstrate the implementation of commercial mobile radio services to electronically request and collect safety data message sets from a limited number of commercial vehicles operating in Tennessee. The results of this test have been used in conjunction with the results of the complimentary pilot tests to support an overall assessment of the feasibility and benefits of WRI in enhancing motor carrier safety (reduction in accidents) due to increased compliance (change in motor carrier and driver behavior) caused by conducting frequent safety inspections electronically, at highway speeds, without delay or need to divert into a weigh station

  15. Evaluation of the water quality in the releases from thirty dams in the Tennessee River Valley

    SciTech Connect (OSTI)

    Butkus, S.R.

    1990-09-01

    The Tennessee Valley Authority (TVA) has routinely monitored dissolved oxygen (DO) and temperature from the tailwater releases of its dams since the 1950s. The original objective of this monitoring was to collect baseline information to support reaeration research and determine the relative impact of impoundments on the assimilative capacity of the river system. This monitoring has continued even though the original objective was satisfied. New purposes for this monitoring data have arisen in support of several programs, without new consideration of the monitoring strategy and sampling design. The primary purpose of this report is to compare the historical release data for 30 dams in the Tennessee Valley based on four different objectives: (1) comparison of seasonal patterns, (2) comparison of baseline conditions using descriptive statistics, (3) evaluation of monotonic trends, and (4) discussion of monitoring strategies that might be required to determine compliance with existing and proposed criteria. A secondary purpose of the report is to compile the existing database into tables and figures that would be useful for other investigators. 51 refs., 210 figs., 1 tab.

  16. US SoAtl GA Site Consumption

    Annual Energy Outlook

    ... Yes Yes No No 0% 20% 40% 60% 80% 100% US GA No Car CAR IS PARKED WITHIN 20 FT OF ELECTRICAL OUTLET More highlights from RECS on housing characteristics and energy-related ...

  17. Princeton Plasma Physics Lab - General Atomics (GA)

    U.S. Department of Energy (DOE) all webpages (Extended Search)

    general-atomics-ga General Atomics en The Scorpion's Strategy: "Catch and Subdue" http:www.pppl.govnode1132

  18. Industrial cogeneration case study No. 3: Mead Corporation Paper Mill, Kingsport, Tennessee

    SciTech Connect (OSTI)

    Not Available

    1980-04-01

    The design, operation, performance, economics and energy efficiency of the 25,000 kW co-generating power plant at the Mead Co. paper mill in Kingsport, TN are described, and compared with the efficiency of producing only process heat at the plant while importing electric power from a local utility. It was established that on-site co-generation consumed 2/3 of the energy that would have been required for on-site process heat generation plus purchased off-site-generated electric power and that co-generation resulted in more than $2.8 million saved during the period from 1975 through 1978. (LCL)

  19. GaTe semiconductor for radiation detection

    DOE Patents [OSTI]

    Payne, Stephen A.; Burger, Arnold; Mandal, Krishna C.

    2009-06-23

    GaTe semiconductor is used as a room-temperature radiation detector. GaTe has useful properties for radiation detectors: ideal bandgap, favorable mobilities, low melting point (no evaporation), non-hygroscopic nature, and availability of high-purity starting materials. The detector can be used, e.g., for detection of illicit nuclear weapons and radiological dispersed devices at ports of entry, in cities, and off shore and for determination of medical isotopes present in a patient.

  20. EA-1779: Proposed Changes to the Sanitary Biosolids Land Application Program on the Oak Ridge Reservation, Oak Ridge, Tennessee

    Energy.gov [DOE]

    This EA evaluates the environmental impacts of a proposal to amend (e.g., by changing setback requirements from surface water features and potential channels to groundwater) the Sanitary Biosolids Land Application Program at the Oak Ridge Reservation in Oak Ridge, Tennessee.

  1. EIS-0071: Memphis Light, Gas and Water Division Industrial Fuels Gas Demonstration Plant, Memphis, Shelby County, Tennessee

    Energy.gov [DOE]

    The U.S. Department of Energy developed this EIS to assesses the potential environmental impacts associated with the construction and operation of a 3,155-ton-per-day capacity facility, which will demonstrate the technical operability, economic viability, and environmental acceptability of the Memphis Division of Light, Gas and Water coal gasification plant at Memphis, Tennessee.

  2. GaP ring-like nanostructures on GaAs (100) with In{sub 0.15}Ga{sub 0.85}As compensation layers

    SciTech Connect (OSTI)

    Prongjit, Patchareewan Pankaow, Naraporn Boonpeng, Poonyasiri Thainoi, Supachok Panyakeow, Somsak Ratanathammaphan, Somchai

    2013-12-04

    We present the fabrication of GaP ring-like nanostructures on GaAs (100) substrates with inserted In{sub 0.15}Ga{sub 0.85}As compensation layers. The samples are grown by droplet epitaxy using solid-source molecular beam epitaxy. The dependency of nanostructural and optical properties of GaP nanostructures on In{sub 0.15}Ga{sub 0.85}As layer thickness is investigated by ex-situ atomic force microscope (AFM) and photoluminescence (PL). It is found that the characteristics of GaP ring-like structures on GaAs strongly depend on the In{sub 0.15}Ga{sub 0.85}As layer thickness.

  3. Fiscal Year 2010 Phased Construction Completion Report for EU Z2-32 in Zone 2, East Tennessee Technology Park, Oak Ridge, Tennessee

    SciTech Connect (OSTI)

    Bechtel Jacobs

    2010-02-01

    The Record of Decision for Soil, Buried Waste, and Subsurface Structure Actions in Zone 2, East Tennessee Technology Park, Oak Ridge, Tennessee (DOEIORJO 1-2161 &D2) (Zone 2 ROD) acknowledged that most of the 800 acres in Zone 2 were contaminated, but that sufficient data to confirm the levels of contamination were lacking. The Zone 2 ROD further specified that a sampling strategy for filling the data gaps would be developed. The Remedial Design Report/Remedial Action Work Plan for Zone 2 Soils, Slabs, and Subsurface Structures, East Tennessee Technology Park, Oak Ridge, Tennessee (DOEIORIO 1 -2224&D3) (RDRJRAWP) defined the sampling strategy as the Dynamic Verification Strategy (DVS), generally following the approach used for characterization of the Zone I exposure units (EUs). The Zone 2 ROD divided the Zone 2 area into seven geographic areas and 44 EUs. To facilitate the data quality objectives (DQOs) of the DVS process, the RDR/RAWP regrouped the 44 EUs into 12 DQO scoping EU groups. These groups facilitated the DQO process by placing similar facilities and their support facilities together, which allowed identification of data gaps. The EU groups were no longer pertinent after DQO planning was completed and characterization was conducted as areas became accessible. As the opportunity to complete characterization became available, the planned DVS program was completed for the EU addressed in this document (EU Z2-32). The purpose of this Phased Construction Completion Report (PCCR) is to address the following: (1) Document DVS characterization results for EU Z2-32. (2) Describe and document the risk evaluation and determine if the EU meets the Zone 2 ROD requirements for unrestricted industrial use to 10 ft bgs. (3) Identify additional areas not defined in the Zone 2 ROD that require remediation based on the DVS evaluation results. (4) Describe the remedial action performed in the K-1066-G Yard in EU Z2-32. Approximately 18.4 acres are included in the EU

  4. Lattice-matched epitaxial GaInAsSb/GaSb thermophotovoltaic devices

    SciTech Connect (OSTI)

    Wang, C.A.; Choi, H.K.; Turner, G.W.; Spears, D.L.; Manfra, M.J.; Charache, G.W.

    1997-05-01

    The materials development of Ga{sub 1{minus}x}In{sub x}As{sub y}Sb{sub 1{minus}y} alloys for lattice-matched thermophotovoltaic (TPV) devices is reported. Epilayers with cutoff wavelength 2--2.4 {micro}m at room temperature and lattice-matched to GaSb substrates were grown by both low-pressure organometallic vapor phase epitaxy and molecular beam epitaxy. These layers exhibit high optical and structural quality. For demonstrating lattice-matched thermophotovoltaic devices, p- and n-type doping studies were performed. Several TPV device structures were investigated, with variations in the base/emitter thicknesses and the incorporation of a high bandgap GaSb or AlGaAsSb window layer. Significant improvement in the external quantum efficiency is observed for devices with an AlGaAsSb window layer compared to those without one.

  5. Green cubic GaInN/GaN light-emitting diode on microstructured silicon (100)

    SciTech Connect (OSTI)

    Stark, Christoph J. M.; Detchprohm, Theeradetch; Wetzel, Christian, E-mail: wetzel@ieee.org [Department of Physics, Applied Physics, and Astronomy, Rensselaer Polytechnic Institute, Troy, New York 12180 (United States) [Department of Physics, Applied Physics, and Astronomy, Rensselaer Polytechnic Institute, Troy, New York 12180 (United States); Future Chips Constellation, Rensselaer Polytechnic Institute, 110 8th Street, Troy, New York 12180 (United States); Lee, S. C.; Brueck, S. R. J. [Department of Electrical and Computer Engineering and Center for High Technology Materials, University of New Mexico, 1313 Goddard SE, Albuquerque, New Mexico 87106 (United States)] [Department of Electrical and Computer Engineering and Center for High Technology Materials, University of New Mexico, 1313 Goddard SE, Albuquerque, New Mexico 87106 (United States); Jiang, Y.-B. [Department of Earth and Planetary Science, University of New Mexico, Albuquerque, New Mexico 87131 (United States)] [Department of Earth and Planetary Science, University of New Mexico, Albuquerque, New Mexico 87131 (United States)

    2013-12-02

    GaInN/GaN light-emitting diodes free of piezoelectric polarization were prepared on standard electronic-grade Si(100) substrates. Micro-stripes of GaN and GaInN/GaN quantum wells in the cubic crystal structure were grown on intersecting (111) planes of microscale V-grooved Si in metal-organic vapor phase epitaxy, covering over 50% of the wafer surface area. Crystal phases were identified in electron back-scattering diffraction. A cross-sectional analysis reveals a cubic structure virtually free of line defects. Electroluminescence over 20 to 100??A is found fixed at 487?nm (peak), 516?nm (dominant). Such structures therefore should allow higher efficiency, wavelength-stable light emitters throughout the visible spectrum.

  6. Enhanced thermoelectric transport in modulation-doped GaN/AlGaN core/shell nanowires

    DOE PAGES-Beta [OSTI]

    Song, Erdong; Li, Qiming; Swartzentruber, Brian; Pan, Wei; Wang, George T.; Martinez, Julio A.

    2015-11-25

    The thermoelectric properties of unintentionally n-doped core GaN/AlGaN core/shell N-face nanowires are reported. We found that the temperature dependence of the electrical conductivity is consistent with thermally activated carriers with two distinctive donor energies. The Seebeck coefficient of GaN/AlGaN nanowires is more than twice as large as that for the GaN nanowires alone. However, an outer layer of GaN deposited onto the GaN/AlGaN core/shell nanowires decreases the Seebeck coefficient at room temperature, while the temperature dependence of the electrical conductivity remains the same. We attribute these observations to the formation of an electron gas channel within the heavily-doped GaN coremore » of the GaN/AlGaN nanowires. The room-temperature thermoelectric power factor for the GaN/AlGaN nanowires can be four times higher than the GaN nanowires. As a result, selective doping in bandgap engineered core/shell nanowires is proposed for enhancing the thermoelectric power.« less

  7. Enhanced thermoelectric transport in modulation-doped GaN/AlGaN core/shell nanowires

    SciTech Connect (OSTI)

    Song, Erdong; Li, Qiming; Swartzentruber, Brian; Pan, Wei; Wang, George T.; Martinez, Julio A.

    2015-11-25

    The thermoelectric properties of unintentionally n-doped core GaN/AlGaN core/shell N-face nanowires are reported. We found that the temperature dependence of the electrical conductivity is consistent with thermally activated carriers with two distinctive donor energies. The Seebeck coefficient of GaN/AlGaN nanowires is more than twice as large as that for the GaN nanowires alone. However, an outer layer of GaN deposited onto the GaN/AlGaN core/shell nanowires decreases the Seebeck coefficient at room temperature, while the temperature dependence of the electrical conductivity remains the same. We attribute these observations to the formation of an electron gas channel within the heavily-doped GaN core of the GaN/AlGaN nanowires. The room-temperature thermoelectric power factor for the GaN/AlGaN nanowires can be four times higher than the GaN nanowires. As a result, selective doping in bandgap engineered core/shell nanowires is proposed for enhancing the thermoelectric power.

  8. InGaN/GaN tunnel junctions for hole injection in GaN light emitting diodes

    SciTech Connect (OSTI)

    Krishnamoorthy, Sriram E-mail: rajan@ece.osu.edu; Akyol, Fatih; Rajan, Siddharth E-mail: rajan@ece.osu.edu

    2014-10-06

    InGaN/GaN tunnel junction contacts were grown using plasma assisted molecular beam epitaxy (MBE) on top of a metal-organic chemical vapor deposition (MOCVD)-grown InGaN/GaN blue (450 nm) light emitting diode. A voltage drop of 5.3 V at 100 mA, forward resistance of 2 × 10{sup −2} Ω cm{sup 2}, and a higher light output power compared to the reference light emitting diodes (LED) with semi-transparent p-contacts were measured in the tunnel junction LED (TJLED). A forward resistance of 5 × 10{sup −4} Ω cm{sup 2} was measured in a GaN PN junction with the identical tunnel junction contact as the TJLED, grown completely by MBE. The depletion region due to the impurities at the regrowth interface between the MBE tunnel junction and the MOCVD-grown LED was hence found to limit the forward resistance measured in the TJLED.

  9. Structural and optical properties of InGaN--GaN nanowire heterostructures grown by molecular beam epitaxy

    SciTech Connect (OSTI)

    Limbach, F.; Gotschke, T.; Stoica, T.; Calarco, R.; Sutter, E.; Ciston, J.; Cusco, R.; Artus, L.; Kremling, S.; Hofling, S.; Worschech, L.; Grutzmacher, D.

    2011-01-01

    InGaN/GaN nanowire (NW) heterostructures grown by plasma assisted molecular beam epitaxy were studied in comparison to their GaN and InGaN counterparts. The InGaN/GaN heterostructure NWs are composed of a GaN NW, a thin InGaN shell, and a multifaceted InGaN cap wrapping the top part of the GaN NW. High-resolution transmission electron microscopy (HRTEM) images taken from different parts of a InGaN/GaN NW show a wurtzite structure of the GaN core and the epitaxial InGaN shell around it, while additional crystallographic domains are observed whithin the InGaN cap region. Large changes in the lattice parameter along the wire, from pure GaN to higher In concentration demonstrate the successful growth of a complex InGaN/GaN NW heterostructure. Photoluminescence (PL) spectra of these heterostructure NW ensembles show rather broad and intense emission peak at 2.1 eV. However, μ-PL spectra measured on single NWs reveal a reduced broadening of the visible luminescence. The analysis of the longitudinal optical phonon Raman peak position and its shape reveal a variation in the In content between 20% and 30%, in agreement with the values estimated by PL and HRTEM investigations. The reported studies are important for understanding of the growth and properties of NW heterostructures suitable for applications in optoelectronics and photovoltaics.

  10. Structural and optical properties of InGaN--GaN nanowire heterostructures grown by molecular beam epitaxy

    DOE PAGES-Beta [OSTI]

    Limbach, F.; Gotschke, T.; Stoica, T.; Calarco, R.; Sutter, E.; Ciston, J.; Cusco, R.; Artus, L.; Kremling, S.; Hofling, S.; et al

    2011-01-01

    InGaN/GaN nanowire (NW) heterostructures grown by plasma assisted molecular beam epitaxy were studied in comparison to their GaN and InGaN counterparts. The InGaN/GaN heterostructure NWs are composed of a GaN NW, a thin InGaN shell, and a multifaceted InGaN cap wrapping the top part of the GaN NW. High-resolution transmission electron microscopy (HRTEM) images taken from different parts of a InGaN/GaN NW show a wurtzite structure of the GaN core and the epitaxial InGaN shell around it, while additional crystallographic domains are observed whithin the InGaN cap region. Large changes in the lattice parameter along the wire, from pure GaNmore » to higher In concentration demonstrate the successful growth of a complex InGaN/GaN NW heterostructure. Photoluminescence (PL) spectra of these heterostructure NW ensembles show rather broad and intense emission peak at 2.1 eV. However, μ-PL spectra measured on single NWs reveal a reduced broadening of the visible luminescence. The analysis of the longitudinal optical phonon Raman peak position and its shape reveal a variation in the In content between 20% and 30%, in agreement with the values estimated by PL and HRTEM investigations. The reported studies are important for understanding of the growth and properties of NW heterostructures suitable for applications in optoelectronics and photovoltaics.« less

  11. Structural and optical properties of InGaNGaN nanowire heterostructures grown by molecular beam epitaxy

    DOE PAGES-Beta [OSTI]

    Limbach, F.; Gotschke, T.; Stoica, T.; Calarco, R.; Sutter, E.; Ciston, J.; Cusco, R.; Artus, L.; Kremling, S.; Ho?fling, S.; et al

    2011-01-01

    InGaN/GaN nanowire (NW) heterostructures grown by plasma assisted molecular beam epitaxy were studied in comparison to their GaN and InGaN counterparts. The InGaN/GaN heterostructure NWs are composed of a GaN NW, a thin InGaN shell, and a multifaceted InGaN cap wrapping the top part of the GaN NW. High-resolution transmission electron microscopy (HRTEM) images taken from different parts of a InGaN/GaN NW show a wurtzite structure of the GaN core and the epitaxial InGaN shell around it, while additional crystallographic domains are observed whithin the InGaN cap region. Large changes in the lattice parameter along the wire, from pure GaNmoreto higher In concentration demonstrate the successful growth of a complex InGaN/GaN NW heterostructure. Photoluminescence (PL) spectra of these heterostructure NW ensembles show rather broad and intense emission peak at 2.1 eV. However, ?-PL spectra measured on single NWs reveal a reduced broadening of the visible luminescence. The analysis of the longitudinal optical phonon Raman peak position and its shape reveal a variation in the In content between 20% and 30%, in agreement with the values estimated by PL and HRTEM investigations. The reported studies are important for understanding of the growth and properties of NW heterostructures suitable for applications in optoelectronics and photovoltaics.less

  12. Inspection of Environment, Safety, and Health and Emergency Management at the Oak Ridge Operations Office and East Tennessee Technology Park, Summary Report, May 2003

    Office of Energy Efficiency and Renewable Energy (EERE)

    This report provides the results of an inspection of environment, safety, and health and emergency management programs at the U.S. Department of Energy's (DOE) East Tennessee Technology Park (ETTP).

  13. Tennessee Natural Gas Vehicle Fuel Price (Dollars per Thousand Cubic Feet)

    U.S. Energy Information Administration (EIA) (indexed site)

    Vehicle Fuel Price (Dollars per Thousand Cubic Feet) Tennessee Natural Gas Vehicle Fuel Price (Dollars per Thousand Cubic Feet) Decade Year-0 Year-1 Year-2 Year-3 Year-4 Year-5 Year-6 Year-7 Year-8 Year-9 1990's 4.29 4.11 4.35 4.63 5.69 5.08 5.49 5.59 4.98 5.08 2000's 6.07 7.83 6.43 8.27 10.76 13.19 14.70 13.91 11.79 8.74 2010's 8.16 12.32 8.18 - = No Data Reported; -- = Not Applicable; NA = Not Available; W = Withheld to avoid disclosure of individual company data. Release Date: 10/31/2016 Next

  14. Small Wind Electric Systems: A Guide Produced for the Tennessee Valley Authority (Revised) (Brochure)

    SciTech Connect (OSTI)

    Not Available

    2009-06-01

    Small Wind Electric Systems: A Guide Produced for the Tennessee Valley Authority provides consumers with information to help them determine whether a small wind electric system can provide all or a portion of the energy they need for their home or business based on their wind resource, energy needs, and their economics. Topics discussed in the guide include how to make a home more energy efficient, how to choose the correct turbine size, the parts of a wind electric system, how to determine whether enough wind resource exists, how to choose the best site for a turbine, how to connect a system to the utility grid, and whether it's possible to become independent of the utility grid using wind energy. In addition, the cover of the guide contains a regional wind resource map and a list of incentives and contacts for more information.

  15. Annual Storm Water Report for the Y-12 National Security Complex Oak Ridge, Tennessee

    SciTech Connect (OSTI)

    Environment Compliance Department

    2012-01-01

    The storm water pollution prevention program at the Y-12 National Security Complex (Y-12 Complex) intends to protect the quality of storm water runoff through: (1) reducing the exposure of metal accumulation areas to precipitation, (2) implementation of Best Management Practices, (3) sampling during rain events and subsequent analysis, and (4) routine surveillances. When prescribed, the analytical data is compared to a set of cut-off concentration values to determine how the Y-12 Complex relates to other metal fabrication industries in the state of Tennessee. The quality of the storm water exiting the Y-12 Complex via East Fork Poplar Creek indicated some improvement in 2011. This improvement is attributable to the completion of several construction, demolition and remediation projects which occurred in 2010 and 2011. Emphasis will continue to be placed on site inspections and the timely implementation of improved storm water control measures as deemed necessary.

  16. Annual Storm Water Report for the Y-12 National Security Complex, Oak Ridge, Tennessee

    SciTech Connect (OSTI)

    Clean Water Compliance Section of the Environment Compliance Department

    2012-01-01

    The storm water pollution prevention program at the Y-12 National Security Complex (Y-12 Complex) intends to protect the quality of storm water runoff through: (1) reducing the exposure of metal accumulation areas to precipitation, (2) implementation of Best Management Practices, (3) sampling during rain events and subsequent analysis, and (4) routine surveillances. When prescribed, the analytical data is compared to a set of cut-off concentration values to determine how the Y-12 Complex relates to other metal fabrication industries in the state of Tennessee. The quality of the storm water exiting the Y-12 Complex via East Fork Poplar Creek indicated some improvement in 2011. This improvement is attributable to the completion of several construction, demolition and remediation projects which occurred in 2010 and 2011. Emphasis will continue to be placed on site inspections and the timely implementation of improved storm water control measures as deemed necessary.

  17. Tennessee Natural Gas Delivered to Commercial Consumers for the Account of

    U.S. Energy Information Administration (EIA) (indexed site)

    Others (Million Cubic Feet) Delivered to Commercial Consumers for the Account of Others (Million Cubic Feet) Tennessee Natural Gas Delivered to Commercial Consumers for the Account of Others (Million Cubic Feet) Decade Year-0 Year-1 Year-2 Year-3 Year-4 Year-5 Year-6 Year-7 Year-8 Year-9 1980's 949 1,191 864 1990's 1,092 1,961 1,680 2,129 2,992 3,163 3,316 4,312 6,635 5,885 2000's 3,987 3,403 4,893 5,347 4,232 4,237 4,139 4,115 4,496 5,076 2010's 5,144 5,247 5,029 5,365 5,332 6,091 - = No

  18. Tennessee Natural Gas in Underground Storage - Change in Working Gas from

    U.S. Energy Information Administration (EIA) (indexed site)

    Same Month Previous Year (Million Cubic Feet) Million Cubic Feet) Tennessee Natural Gas in Underground Storage - Change in Working Gas from Same Month Previous Year (Million Cubic Feet) Year Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec 1997 0 0 0 0 0 0 0 0 0 0 0 0 1998 0 0 0 0 0 0 0 0 0 0 0 184 1999 197 189 118 122 119 262 235 178 169 171 125 68 2000 34 -17 51 68 53 -90 -197 -274 -377 -433 -377 -236 2001 -68 48 38 32 153 266 298 360 407 420 65 -22 2002 24 85 159 228 100 -16 -60 -126 -176

  19. Tennessee Share of Total U.S. Natural Gas Delivered to Consumers

    Gasoline and Diesel Fuel Update

    Feet) Base Gas) (Million Cubic Feet) Tennessee Natural Gas in Underground Storage (Base Gas) (Million Cubic Feet) Year Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec 1997 0 0 0 0 0 0 0 0 0 0 0 0 1998 340 340 340 340 340 340 340 340 340 340 340 340 1999 340 340 340 340 340 340 340 340 340 340 340 340 2000 340 340 340 340 340 340 340 340 340 340 340 340 2001 340 340 340 340 340 340 340 340 340 340 340 340 2002 340 340 340 340 340 340 340 340 340 340 340 340 2003 340 340 340 340 340 340 340

  20. RCRA Summary Document for the David Witherspoon 1630 Site, Knoxville, Tennessee

    SciTech Connect (OSTI)

    Pfeffer, J.

    2008-06-10

    The 48-acre David Witherspoon, Inc. (DWI) 1630 Site operated as an unregulated industrial landfill and scrap yard. The Tennessee Division of Superfund (TDSF) closed the landfill in 1974. During the period of operation, the site received solid and liquid wastes from salvage and industrial operations. The site consists of five separate tracts of land including a small portion located across the Norfolk Southern Railroad track. The landfill occupies approximately 5 acres of the site, and roughly 20 acres of the 48 acres contains surface and buried debris associated with the DWI dismantling business operation. Beginning in 1968, the state of Tennessee licensed DWI to receive scrap metal at the DWI 1630 Site, contaminated with natural uranium and enriched uranium (235U) not exceeding 0.1 percent by weight (TDSF 1990). The U.S. Department of Energy (DOE) has agreed to undertake remedial actions at the DWI 1630 Site as specified under a Consent Order with the Tennessee Department of Environment and Conservation (TDEC) (Consent Order No. 90-3443, April 4, 1991), and as further delineated by a Memorandum of Understanding (MOU) between DOE and the State of Tennessee (MOU Regarding Implementation of Consent Orders, October 6, 1994). The soil and debris removal at the DWI 1630 Site is being performed by Bechtel Jacobs Company LLC (BJC) on behalf of the DOE. Remediation consists of removing contaminated soil and debris from the DWI 1630 site except for the landfill area and repairing the landfill cap. The DWI 1630 remediation waste that is being disposed at the Environmental Management Waste Management Facility (EMWMF) as defined as waste lot (WL) 146.1 and consists primarily of soils and soil like material, incidental debris and secondary waste generated from the excavation of debris and soil from the DWI 1630 site. The WL 146.1 includes soil, soil like material (e.g., shredded or chipped vegetation, ash), discrete debris items (e.g., equipment, drums, large scrap metal

  1. Investigation of surface-plasmon coupled red light emitting InGaN/GaN multi-quantum well with Ag nanostructures coated on GaN surface

    SciTech Connect (OSTI)

    Li, Yi; Liu, Bin E-mail: rzhang@nju.edu.cn; Zhang, Rong E-mail: rzhang@nju.edu.cn; Xie, Zili; Zhuang, Zhe; Dai, JiangPing; Tao, Tao; Zhi, Ting; Zhang, Guogang; Chen, Peng; Ren, Fangfang; Zhao, Hong; Zheng, Youdou

    2015-04-21

    Surface-plasmon (SP) coupled red light emitting InGaN/GaN multiple quantum well (MQW) structure is fabricated and investigated. The centre wavelength of 5-period InGaN/GaN MQW structure is about 620?nm. The intensity of photoluminescence (PL) for InGaN QW with naked Ag nano-structures (NS) is only slightly increased due to the oxidation of Ag NS as compared to that for the InGaN QW. However, InGaN QW with Ag NS/SiO{sub 2} structure can evidently enhance the emission efficiency due to the elimination of surface oxide layer of Ag NS. With increasing the laser excitation power, the PL intensity is enhanced by 25%53% as compared to that for the SiO{sub 2} coating InGaN QW. The steady-state electric field distribution obtained by the three-dimensional finite-difference time-domain method is different for both structures. The proportion of the field distributed in the Ag NS for the GaN/Ag NS/SiO{sub 2} structure is smaller as compared to that for the GaN/naked Ag NS structure. As a result, the energy loss of localized SP modes for the GaN/naked Ag NS structure will be larger due to the absorption of Ag layer.

  2. Strain-compensated (Ga,In)N/(Al,Ga)N/GaN multiple quantum wells for improved yellow/amber light emission

    SciTech Connect (OSTI)

    Lekhal, K.; Damilano, B. De Mierry, P.; Venngus, P.; Ngo, H. T.; Rosales, D.; Gil, B.; Hussain, S.

    2015-04-06

    Yellow/amber (570600?nm) emitting In{sub x}Ga{sub 1?x}N/Al{sub y}Ga{sub 1?y}N/GaN multiple quantum wells (QWs) have been grown by metal organic chemical vapor deposition on GaN-on- sapphire templates. When the (Al,Ga)N thickness of the barrier increases, the room temperature photoluminescence is red-shifted while its yield increases. This is attributed to an increase of the QW internal electric field and an improvement of the material quality due to the compensation of the compressive strain of the In{sub x}Ga{sub 1?x}N QWs by the Al{sub y}Ga{sub 1?y}N layers, respectively.

  3. On strongly GA-convex functions and stochastic processes

    SciTech Connect (OSTI)

    Bekar, Nurgl Okur; Akdemir, Hande Gnay; ??can, ?mdat

    2014-08-20

    In this study, we introduce strongly GA-convex functions and stochastic processes. We provide related well-known Kuhn type results and Hermite-Hadamard type inequality for strongly GA-convex functions and stochastic processes.

  4. Supplemental Radiological Survey Plan for the Lease of the Rooms Associated with C107 of Building K-1006 at the East Tennessee Technology Park, Oak Ridge, Tennessee

    SciTech Connect (OSTI)

    Blevins M.F.

    2010-09-01

    In 1998, a portion of Bldg. K-1006 was leased to the Community Reuse Organization of East Tennessee (CROET) as part of the reindustrialization efforts at the East Tennessee Technology Park (ETTP). The facility was subleased and is being used as an analytical laboratory. The 1998 lease did not include rooms C107, C107-A, C107-B, C107-C, and C107-D. The lease of these rooms is now desired. These rooms comprise the area to be surveyed. The building was constructed as a laboratory facility to support the gaseous diffusion uranium enrichment process. It also contains offices and administrative spaces for laboratory personnel. After the gaseous diffusion process was shut down in the mid-1980s, the building was used to provide research and development support to ETTP environmental, safety, and health programs; the Toxic Substances Control Act Incinerator; the Central Neutralization Facility; and other multi-site waste treatment activities. It also served as the chemistry laboratory for the Environmental Technology Technical Services Organization. The activities currently conducted in Bldg. K-1006 utilize a variety of analytical techniques. Some of the major techniques being employed are X-ray analysis, electron microanalysis, and spectrochemical analysis. In 1998, a portion of Bldg. K-1006 was leased to CROET as part of the reindustrialization efforts at ETTP. The facility was subleased and is being used as an analytical laboratory. The 1998 lease did not include Rooms C107, C107-A, C107-B, C107-C, and C107-D. Some demolition of furniture and decontamination activities has taken place for Rooms C 107 and C 107-B since the last radiological survey of those rooms. In March 2009, a final remedial action (RA) was performed for the Bldg. K-1006 north basement sump. The Bldg. K-1006 north basement sump is a nominal 30-in.-diameter, 36-in.-deep concrete structure in the north corner of room C107B. The building receives groundwater in-leakage that is periodically pumped to the

  5. Few-hole double quantum dot in an undoped GaAs/AlGaAs heterostructure

    SciTech Connect (OSTI)

    Tracy, L. A.; Hargett, T. W.; Reno, J. L.

    2014-03-24

    We demonstrate a hole double quantum dot in an undoped GaAs/AlGaAs heterostructure. The interdot coupling can be tuned over a wide range, from formation of a large single dot to two well-isolated quantum dots. Using charge sensing, we show the ability to completely empty the dot of holes and control the charge occupation in the few-hole regime. The device should allow for control of individual hole spins in single and double quantum dots in GaAs.

  6. InGaAs/GaAs quantum dot interdiffiusion induced by cap layer overgrowth

    SciTech Connect (OSTI)

    Jasinski, J.; Babinski, A.; Czeczott, M.; Bozek, R.

    2000-06-28

    The effect of thermal treatment during and after growth of InGaAs/GaAs quantum dot (QD) structures was studied. Transmission electron microscopy and atomic force microscopy confirmed the presence of interacting QDs, as was expected from analysis of temperature dependence of QD photoluminescence (PL) peak. The results indicate that the effect of post-growth annealing can be similar to the effect of elevated temperature of capping layer growth. Both, these thermal treatments can lead to a similar In and Ga interdiffiusion resulting in a similar blue-shift of QD PL peak.

  7. Optical spectroscopy of quantum confined states in GaAs/AlGaAs quantum well tubes

    SciTech Connect (OSTI)

    Shi, Teng; Fickenscher, Melodie; Smith, Leigh; Jackson, Howard; Yarrison-Rice, Jan; Gao, Qiang; Tan, Hoe; Jagadish, Chennupati; Etheridge, Joanne; Wong, Bryan M.

    2013-12-04

    We have investigated the quantum confinement of electronic states in GaAs/Al{sub x}Ga{sub 1?x}As nanowire heterostructures which contain radial GaAs quantum wells of either 4nm or 8nm. Photoluminescence and photoluminescence excitation spectroscopy are performed on single nanowires. We observed emission and excitation of electron and hole confined states. Numerical calculations of the quantum confined states using the detailed structural information on the quantum well tubes show excellent agreement with these optical results.

  8. Three-junction solar cells comprised of a thin-film GaInP/GaAs tandem cell mechanically stacked on a Si cell

    SciTech Connect (OSTI)

    Yazawa, Y.; Tamura, K.; Watahiki, S.; Kitatani, T.; Ohtsuka, H.; Warabisako, T.

    1997-12-31

    Three-junction tandem solar cells were fabricated by mechanical stacking of a thin-film GaInP/GaAs monolithic tandem cell and a Si cell. The epitaxial lift-off (ELO) technique was used for the thinning of GaInP/GaAs tandem cells. Both spectral responses of the GaInP top cell and the GaAs middle cell in the thin-film GaInP/GaAs monolithic tandem cell were conserved. The Si cell performance has been improved by reducing the absorption loss in the GaAs substrate.

  9. GaAs photoconductive semiconductor switch

    DOE Patents [OSTI]

    Loubriel, G.M.; Baca, A.G.; Zutavern, F.J.

    1998-09-08

    A high gain, optically triggered, photoconductive semiconductor switch (PCSS) implemented in GaAs as a reverse-biased pin structure with a passivation layer above the intrinsic GaAs substrate in the gap between the two electrodes of the device is disclosed. The reverse-biased configuration in combination with the addition of the passivation layer greatly reduces surface current leakage that has been a problem for prior PCSS devices and enables employment of the much less expensive and more reliable DC charging systems instead of the pulsed charging systems that needed to be used with prior PCSS devices. 5 figs.

  10. GaAs photoconductive semiconductor switch

    DOE Patents [OSTI]

    Loubriel, Guillermo M.; Baca, Albert G.; Zutavern, Fred J.

    1998-01-01

    A high gain, optically triggered, photoconductive semiconductor switch (PCSS) implemented in GaAs as a reverse-biased pin structure with a passivation layer above the intrinsic GaAs substrate in the gap between the two electrodes of the device. The reverse-biased configuration in combination with the addition of the passivation layer greatly reduces surface current leakage that has been a problem for prior PCSS devices and enables employment of the much less expensive and more reliable DC charging systems instead of the pulsed charging systems that needed to be used with prior PCSS devices.

  11. GA-AL-SC | Department of Energy

    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

    GA-AL-SC GA-AL-SC October 1, 2012 ALA-1-N Wholesale Power Rate Schedule Area: PowerSouth Energy Cooperative System: Georgia-Alabama-South Carolina October 1, 2012 Duke-1-E Wholesale Power Rate Schedule Area: Duke On-System System: Georgia-Alabama-South Carolina October 1, 2012 Duke-2-E Wholesale Power Rate Schedule Area: Central System: Georgia-Alabama-South Carolina October 1, 2012 Duke-3-E Wholesale Power Rate Schedule Area: None System: Georgia-Alabama-South Carolina October 1, 2012 Duke-4-E

  12. GaN: Defect and Device Issues

    SciTech Connect (OSTI)

    Pearton, S.J.; Ren, F.; Shul, R.J.; Zolper, J.C.

    1998-11-09

    The role of extended and point defects, and key impurities such as C, O and H, on the electrical and optical properties of GaN is reviewed. Recent progress in the development of high reliability contacts, thermal processing, dry and wet etching techniques, implantation doping and isolation and gate insulator technology is detailed. Finally, the performance of GaN-based electronic and photonic devices such as field effect transistors, UV detectors, laser diodes and light-emitting diodes is covered, along with the influence of process-induced or grown-in defects and impurities on the device physics.

  13. Remedial investigation/feasibility study for the David Witherspoon, Inc., 901 Site, Knoxville, Tennessee: Volume 2, Appendixes

    SciTech Connect (OSTI)

    1996-10-01

    This document contains the appendixes for the remedial investigation and feasibility study for the David Witherspoon, Inc., 901 site in Knoxville, Tennessee. The following topics are covered in the appendixes: (A) David Witherspoon, Inc., 901 Site Historical Data, (B) Fieldwork Plans for the David Witherspoon, Inc., 901 Site, (C) Risk Assessment, (D) Remediation Technology Discussion, (E) Engineering Support Documentation, (F) Applicable or Relevant and Appropriate Requirements, and (G) Cost Estimate Documentation.

  14. Lattice-Mismatched GaAs/InGaAs Two-Junction Solar Cells by Direct Wafer Bonding

    SciTech Connect (OSTI)

    Tanabe, K.; Aiken, D. J.; Wanlass, M. W.; Morral, A. F.; Atwater, H. A.

    2006-01-01

    Direct bonded interconnect between subcells of a lattice-mismatched III-V compound multijunction cell would enable dislocation-free active regions by confining the defect network needed for lattice mismatch accommodation to tunnel junction interfaces, while metamorphic growth inevitably results in less design flexibility and lower material quality than is desirable. The first direct-bond interconnected multijunction solar cell, a two-terminal monolithic GaAs/InGaAs two-junction solar cell, is reported and demonstrates viability of direct wafer bonding for solar cell applications. The tandem cell open-circuit voltage was approximately the sum of the subcell open-circuit voltages. This achievement shows direct bonding enables us to construct lattice-mismatched III-V multijunction solar cells and is extensible to an ultrahigh efficiency InGaP/GaAs/InGaAsP/InGaAs four-junction cell by bonding a GaAs-based lattice-matched InGaP/GaAs subcell and an InP-based lattice-matched InGaAsP/InGaAs subcell. The interfacial resistance experimentally obtained for bonded GaAs/InP smaller than 0.10 Ohm-cm{sup 2} would result in a negligible decrease in overall cell efficiency of {approx}0.02%, under 1-sun illumination.

  15. Composition profiling of GaAs/AlGaAs quantum dots grown by droplet epitaxy

    SciTech Connect (OSTI)

    Bocquel, J.; Koenraad, P. M.; Giddings, A. D.; Prosa, T. J.; Larson, D. J.; Mano, T.

    2014-10-13

    Droplet epitaxy (DE) is a growth method which can create III-V quantum dots (QDs) whose optoelectronic properties can be accurately controlled through the crystallisation conditions. In this work, GaAs/AlGaAs DE-QDs have been analyzed with the complimentary techniques of cross-sectional scanning tunneling microscopy and atom probe tomography. Structural details and a quantitative chemical analysis of QDs of different sizes are obtained. Most QDs were found to be pure GaAs, while a small proportion exhibited high intermixing caused by a local etching process. Large QDs with a high aspect ratio were observed to have an Al-rich crown above the GaAs QD. This structure is attributed to differences in mobility of the cations during the capping phase of the DE growth.

  16. High-field quasi-ballistic transport in AlGaN/GaN heterostructures

    SciTech Connect (OSTI)

    Danilchenko, B. A.; Tripachko, N. A.; Belyaev, A. E.; Vitusevich, S. A. Hardtdegen, H.; Lth, H.

    2014-02-17

    Mechanisms of electron transport formation in 2D conducting channels of AlGaN/GaN heterostructures in extremely high electric fields at 4.2?K have been studied. Devices with a narrow constriction for the current flow demonstrate high-speed electron transport with an electron velocity of 6.8??10{sup 7}?cm/s. Such a velocity is more than two times higher than values reported for conventional semiconductors and about 15% smaller than the limit value predicted for GaN. Superior velocity is attained in the channel with considerable carrier reduction. The effect is related to a carrier runaway phenomenon. The results are in good agreement with theoretical predictions for GaN-based materials.

  17. InGaAs/GaAs (110) quantum dot formation via step meandering

    SciTech Connect (OSTI)

    Diez-Merino, Laura; Tejedor, Paloma

    2011-07-01

    InGaAs (110) semiconductor quantum dots (QDs) offer very promising prospects as a material base for a new generation of high-speed spintronic devices, such as single electron transistors for quantum computing. However, the spontaneous formation of InGaAs QDs is prevented by two-dimensional (2D) layer-by-layer growth on singular GaAs (110) substrates. In this work we have studied, by using atomic force microscopy and photoluminescence spectroscopy (PL), the growth of InGaAs/GaAs QDs on GaAs (110) stepped substrates by molecular beam epitaxy (MBE), and the modification of the adatom incorporation kinetics to surface steps in the presence of chemisorbed atomic hydrogen. The as-grown QDs exhibit lateral dimensions below 100 nm and emission peaks in the 1.35-1.37 eV range. It has been found that a step meandering instability derived from the preferential attachment of In adatoms to [110]-step edges relative to [11n]-type steps plays a key role in the destabilization of 2D growth that leads to 3D mound formation on both conventional and H-terminated vicinal substrates. In the latter case, the driving force for 3D growth via step meandering is enhanced by H-induced upward mass transport in addition to the lower energy cost associated with island formation on H-terminated substrates, which results in a high density array of InGaAs/GaAs dots selectively nucleated on the terrace apices with reduced lateral dimensions and improved PL efficiency relative to those of conventional MBE-grown samples.

  18. AlGaAs/GaAs photovoltaic converters for high power narrowband radiation

    SciTech Connect (OSTI)

    Khvostikov, Vladimir; Kalyuzhnyy, Nikolay; Mintairov, Sergey; Potapovich, Nataliia; Shvarts, Maxim; Sorokina, Svetlana; Andreev, Viacheslav; Luque, Antonio

    2014-09-26

    AlGaAs/GaAs-based laser power PV converters intended for operation with high-power (up to 100 W/cm{sup 2}) radiation were fabricated by LPE and MOCVD techniques. Monochromatic (? = 809 nm) conversion efficiency up to 60% was measured at cells with back surface field and low (x = 0.2) Al concentration 'window'. Modules with a voltage of 4 V and the efficiency of 56% were designed and fabricated.

  19. Sheet resistance under Ohmic contacts to AlGaN/GaN heterostructures

    SciTech Connect (OSTI)

    Hajłasz, M.; Donkers, J. J. T. M.; Sque, S. J.; Heil, S. B. S.; Gravesteijn, D. J.; Rietveld, F. J. R.; Schmitz, J.

    2014-06-16

    For the determination of specific contact resistance in semiconductor devices, it is usually assumed that the sheet resistance under the contact is identical to that between the contacts. This generally does not hold for contacts to AlGaN/GaN structures, where an effective doping under the contact is thought to come from reactions between the contact metals and the AlGaN/GaN. As a consequence, conventional extraction of the specific contact resistance and transfer length leads to erroneous results. In this Letter, the sheet resistance under gold-free Ti/Al-based Ohmic contacts to AlGaN/GaN heterostructures on Si substrates has been investigated by means of electrical measurements, transmission electron microscopy, and technology computer-aided design simulations. It was found to be significantly lower than that outside of the contact area; temperature-dependent electrical characterization showed that it exhibits semiconductor-like behavior. The increase in conduction is attributed to n-type activity of nitrogen vacancies in the AlGaN. They are thought to form during rapid thermal annealing of the metal stack when Ti extracts nitrogen from the underlying semiconductor. The high n-type doping in the region between the metal and the 2-dimensional electron gas pulls the conduction band towards the Fermi level and enhances horizontal electron transport in the AlGaN. Using this improved understanding of the properties of the material underneath the contact, accurate values of transfer length and specific contact resistance have been extracted.

  20. On-sun concentrator performance of GaInP/GaAs tandem cells

    SciTech Connect (OSTI)

    Friedman, D.J.; Kurtz, S.R.; Sinha, K.; McMahon, W.E.; Olson, J.M.

    1996-05-01

    The GaInP/GaAs concentrator device has been adapted for and tested in a prototype {open_quotes}real-world{close_quotes} concentrator power system. The device achieved an on-sun efficiency of 28% {+-} 1% in the range of approximately 200-260 suns with device operating temperatures of 38{degrees}C to 42{degrees}C. The authors discuss ways of further improving this performance for future devices.

  1. Properties of (Ga,Mn)As codoped with Li

    SciTech Connect (OSTI)

    Miyakozawa, Shohei; Chen, Lin; Matsukura, Fumihiro; Ohno, Hideo

    2014-06-02

    We grow Li codoped (Ga,Mn)As layers with nominal Mn composition up to 0.15 by molecular beam epitaxy. The layers before and after annealing are characterized by x-ray diffraction, transport, magnetization, and ferromagnetic resonance measurements. The codoping with Li reduces the lattice constant and electrical resistivity of (Ga,Mn)As after annealing. We find that (Ga,Mn)As:Li takes similar Curie temperature to that of (Ga,Mn)As, but with pronounced magnetic moments and in-plane magnetic anisotropy, indicating that the Li codoping has nontrivial effects on the magnetic properties of (Ga,Mn)As.

  2. Lateral and Vertical Transistors Using the AlGaN/GaN Heterostructure

    SciTech Connect (OSTI)

    Chowdhury, S; Mishra, UK

    2013-10-01

    Power conversion losses are endemic in all areas of electricity consumption, including motion control, lighting, air conditioning, and information technology. Si, the workhorse of the industry, has reached its material limits. Increasingly, the lateral AlGaN/GaN HEMT based on gallium nitride (GaN-on-Si) is becoming the device of choice for medium power electronics as it enables high-power conversion efficiency and reduced form factor at attractive pricing for wide market penetration. The reduced form factor enabled by high-efficiency operation at high frequency further enables significant system price reduction because of savings in bulky extensive passive elements and heat sink costs. The high-power market, however, still remains unaddressed by lateral GaN devices. The current and voltage demand for high power conversion application makes the chip area in a lateral topology so large that it becomes more difficult to manufacture. Vertical GaN devices would play a big role alongside of silicon carbide (SiC) to address the high power conversion needs. In this paper, the development, performance, and status of lateral and vertical GaN devices are discussed.

  3. GaNPAs Solar Cells Lattice-Matched To GaP: Preprint

    SciTech Connect (OSTI)

    Geisz, J. F.; Friedman, D. J.; Kurtz, S.

    2002-05-01

    This conference paper describes the III-V semiconductors grown on silicon substrates are very attractive for lower-cost, high-efficiency multijunction solar cells, but lattice-mismatched alloys that result in high dislocation densities have been unable to achieve satisfactory performance. GaNxP1-x-yAsy is a direct-gap III-V alloy that can be grown lattice-matched to Si when y= 4.7x - 0.1. We propose the use of lattice-matched GaNPAs on silicon for high-efficiency multijunction solar cells. We have grown GaNxP1-x-yAsy on GaP (with a similar lattice constant to silicon) by metal-organic chemical vapor phase epitaxy with direct band-gaps in the range of 1.5 to 2.0 eV. We demonstrate the performance of single-junction GaNxP1-x-yAsy solar cells grown on GaP substrates and discuss the prospects for the development of monolithic high-efficiency multijunction solar cells based on silicon substrates.

  4. Hybrid type-I InAs/GaAs and type-II GaSb/GaAs quantum dot structure with enhanced photoluminescence

    SciTech Connect (OSTI)

    Ji, Hai-Ming; Liang, Baolai Simmonds, Paul J.; Juang, Bor-Chau; Yang, Tao; Young, Robert J.; Huffaker, Diana L.

    2015-03-09

    We investigate the photoluminescence (PL) properties of a hybrid type-I InAs/GaAs and type-II GaSb/GaAs quantum dot (QD) structure grown in a GaAs matrix by molecular beam epitaxy. This hybrid QD structure exhibits more intense PL with a broader spectral range, compared with control samples that contain only InAs or GaSb QDs. This enhanced PL performance is attributed to additional electron and hole injection from the type-I InAs QDs into the adjacent type-II GaSb QDs. We confirm this mechanism using time-resolved and power-dependent PL. These hybrid QD structures show potential for high efficiency QD solar cell applications.

  5. Reactive codoping of GaAlInP compound semiconductors

    DOE Patents [OSTI]

    Hanna, Mark Cooper; Reedy, Robert

    2008-02-12

    A GaAlInP compound semiconductor and a method of producing a GaAlInP compound semiconductor are provided. The apparatus and method comprises a GaAs crystal substrate in a metal organic vapor deposition reactor. Al, Ga, In vapors are prepared by thermally decomposing organometallic compounds. P vapors are prepared by thermally decomposing phospine gas, group II vapors are prepared by thermally decomposing an organometallic group IIA or IIB compound. Group VIB vapors are prepared by thermally decomposing a gaseous compound of group VIB. The Al, Ga, In, P, group II, and group VIB vapors grow a GaAlInP crystal doped with group IIA or IIB and group VIB elements on the substrate wherein the group IIA or IIB and a group VIB vapors produced a codoped GaAlInP compound semiconductor with a group IIA or IIB element serving as a p-type dopant having low group II atomic diffusion.

  6. Superfund record of decision: Memphis Defense Depot (DLA), Aka: Defense depot, operable unit 1, Memphis, TN. (Interim remedial action), May 1, 1996

    SciTech Connect (OSTI)

    1997-04-01

    This decision document (Record of Decision (ROD)) presents the selected interim remedial action (IRA) for the DDMT site, Memphis, Tennessee. The major components of the selected IRA for OU-1 include: evaluation of aquifer characteristics which may include installation of a pump test well; installation of additional monitoring wells to locate the western edge of the groundwater plume; installation of recovery wells along the leading edge of the plume; obtaining discharge permit for disposal of recovered groundwater to the T.E. Maxson Wastewater Treatment Plant publicly owned treatment works (POTW) or municipal sewer system; operation of the system of recovery wells unit the risk associated with the contaminants is reduced to acceptable levels or until the final remedy is in place; and chemical analysis will be conducted to monitor the quality of the discharge in accordance with the city discharge permit requirements; the permit will include parameters to be monitored and frequency.

  7. Impacts from a fossil fuel power plant on ozone levels in Memphis, Tennessee

    SciTech Connect (OSTI)

    Mueller, S.F.; Bailey, E.M.

    1998-12-31

    The Tennessee Valley Authority (TVA) Allen power plant is located on the Mississippi River in the southwest corner of Memphis, Tennessee. Allen has three coal-fired cyclone boilers with a rated capacity of 272 MW each. It is a Phase 2 plant under Title IV of the Clean Air Act and is the largest single source of NO{sub x} in the Memphis area. TVA plans to reduce Allen NOx emissions through a combination of burning low-sulfur coal (which has the benefit of reducing NO{sub x} emissions while also reducing SO{sub 2} emissions) and installing gas re-burn technology. A modeling study using the SAI, Inc., UAM-V photochemical model was conducted to examine the potential impacts of NO{sub x} reductions on ozone levels in the Memphis area. A series of four model simulations were made in which different Allen emissions scenarios were examined. The focus period of the photochemical modeling was 11--14 July 1995 when measurements in and near Memphis indicated peak hourly ozone levels of 135--140 ppb. This analysis primarily examined computed impacts within 50 km of Memphis. Allen was computed to contribute as much as 20--30 ppb to ground ozone levels 20-50 km downwind using its NO{sub x} emission rate before Title IV compliance. After compliance it was computed to contribute only about 10--20 ppb. At the same time, maximum daily ozone reductions due to Allen NO{sub x} titration of ozone were between 30 and 60 ppb. These benefits will be reduced by 30--50% after Title IV compliance, and are expected to occur within 30 km of the plant. More model grid cells indicated dis-benefits (net ground-level ozone increases) than benefits on three of the four episode days using the Title IV compliance emission rate. Significant ozone dis-benefits were expected because of the well-documented NO titration of ozone within plumes having a high ratio of NO to volatile organic compounds.

  8. GAINING CONSENSUS: THE STORY OF ''OAK RIDGE TENNESSEE - A CITIZEN'S GUIDE TO THE ENVIRONMENT''

    SciTech Connect (OSTI)

    Craig, Robert; Freeman, Jenny; Gawarecki, Susan L; Hardy, Parker; Kopp, Steve; Mulvenon, Norman A; Pardue, William; Sarno, Doug

    2003-02-27

    In 2001, a diverse group of citizens ranging from conservationists to industrial developers joined forces to produce a factual description of Oak Ridge's environment and the issues associated with contamination on the U.S. Department of Energy (DOE) reservation. This consensus effort was a result of common values not generally seen in this spectrum of philosophies, and of shared concerns about rising property taxes, declining city services, fleeing retail establishments, and diminishing real estate values. These problems are attributed to waning local DOE budgets coupled with Oak Ridge's national reputation of being contaminated and unsafe. This undeserved reputation harms the city's ability to attract new industry to replace declining federal employment and to induce families to live in the community. Representatives from a spectrum of conservation, environmental, economic development, local government, and civic organizations were invited to meet regarding how to best explain the complex environmental story of Oak Ridge and the DOE reservation. This large group decided to publish a straightforward explanation of the environmental quality of the city and its relationship to the DOE reservation in easy-to-understand language. The result was Oak Ridge, Tennessee--A Citizen's Guide to the Environment, a 28-page glossy booklet, distributed through the Chamber of Commerce and other organizations. The Oak Ridger ensured wide distribution in the community by publishing it as an insert in the daily paper. The material is also available on several web sites. A trifold brochure summarizing and promoting the larger document was also produced for wider distribution. The integrity of the Citizen's Guide was ensured by having a six-member editorial team manage writing and review of the document. There was no direct involvement by the DOE and its contractor. Knowledgeable citizen writers from throughout the community contributed technical and descriptive text. A professional

  9. Chemical beam epitaxy growth of AlGaAs/GaAs tunnel junctions using trimethyl aluminium for multijunction solar cells

    SciTech Connect (OSTI)

    Paquette, B.; DeVita, M.; Turala, A.; Kolhatkar, G.; Boucherif, A.; Jaouad, A.; Aimez, V.; Ars, R.; Wilkins, M.; Wheeldon, J. F.; Walker, A. W.; Hinzer, K.; Fafard, S.

    2013-09-27

    AlGaAs/GaAs tunnel junctions for use in high concentration multijunction solar cells were designed and grown by chemical beam epitaxy (CBE) using trimethyl aluminium (TMA) as the p-dopant source for the AlGaAs active layer. Controlled hole concentration up to 4?10{sup 20} cm{sup ?3} was achieved through variation in growth parameters. Fabricated tunnel junctions have a peak tunneling current up to 6140 A/cm{sup 2}. These are suitable for high concentration use and outperform GaAs/GaAs tunnel junctions.

  10. Environmental Baseline Survey Report for the Title Transfer of Land Parcel ED-4 at the East Tennessee Technology Park, Oak Ridge, Tennessee

    SciTech Connect (OSTI)

    SAIC

    2008-05-01

    This environmental baseline survey (EBS) report documents the baseline environmental conditions of a land parcel referred to as 'ED-4' (ED-4) at the U. S. Department of Energy's (DOE's) East Tennessee Technology Park (ETTP). DOE is proposing to transfer the title of this land to the Heritage Center, LLC. Parcel ED-4 is a land parcel that consists of two noncontiguous areas comprising a total of approximately 18 acres located east of the ETTP. The western tract of ED-4 encompasses approximately 8.5 acres in the northeastern quadrant of the intersection of Boulevard Road and Highway 58. The eastern tract encompasses an area of approximately 9.5 acres in the northwestern quadrant of the intersection of Blair Road and Highway 58 (the Oak Ridge Turnpike). Aerial photographs and site maps from throughout the history of the ETTP, going back to its initial development in the 1940s as the Oak Ridge Gaseous Diffusion Plant (ORGDP), indicate that this area has been undeveloped woodland with the exception of three support facilities for workers constructing the ORGDP since federal acquisition in 1943. These three support facilities, which were located in the western tract of ED-4, included a recreation hall, the Town Hall Camp Operations Building, and the Property Warehouse. A railroad spur also formerly occupied a portion of Parcel ED-4. These former facilities only occupied approximately 5 percent of the total area of Parcel ED-4. This report provides supporting information for the transfer of this government-owned property at ETTP to a non-federal entity. This EBS is based upon the requirements of Sect. 120(h) of the Comprehensive Environmental Response, Compensation, and Liability Act of 1980 (CERCLA). In order to support a Clean Parcel Determination (CPD) in accordance with CERCLA Sect. 120(h)(4)(d), groundwater and sediment samples were collected within, and adjacent to, the Parcel ED-4 study area. The potential for DOE to make a CPD for ED-4 is further supported by a No

  11. Study of the effects of GaN buffer layer quality on the dc characteristics of AlGaN/GaN high electron mobility transistors

    DOE PAGES-Beta [OSTI]

    Ahn, Shihyun; Zhu, Weidi; Dong, Chen; Le, Lingcong; Hwang, Ya-Hsi; Kim, Byung-Jae; Ren, Fan; Pearton, Stephen J.; Lind, Aaron G.; Jones, Kevin S.; et al

    2015-04-21

    Here we studied the effect of buffer layer quality on dc characteristics of AlGaN/GaN high electron mobility (HEMTs). AlGaN/GaN HEMT structures with 2 and 5 μm GaN buffer layers on sapphire substrates from two different vendors with the same Al concentration of AlGaN were used. The defect densities of HEMT structures with 2 and 5 μm GaN buffer layer were 7 × 109 and 5 × 108 cm₋2, respectively, as measured by transmission electron microscopy. There was little difference in drain saturation current or in transfer characteristics in HEMTs on these two types of buffer. However, there was no dispersionmore » observed on the nonpassivated HEMTs with 5 μm GaN buffer layer for gate-lag pulsed measurement at 100 kHz, which was in sharp contrast to the 71% drain current reduction for the HEMT with 2 μm GaN buffer layer.« less

  12. Study of the effects of GaN buffer layer quality on the dc characteristics of AlGaN/GaN high electron mobility transistors

    SciTech Connect (OSTI)

    Ahn, Shihyun; Zhu, Weidi; Dong, Chen; Le, Lingcong; Hwang, Ya-Hsi; Kim, Byung-Jae; Ren, Fan; Pearton, Stephen J.; Lind, Aaron G.; Jones, Kevin S.; Kravchenko, I. I.; Zhang, Ming-Lan

    2015-04-21

    Here we studied the effect of buffer layer quality on dc characteristics of AlGaN/GaN high electron mobility (HEMTs). AlGaN/GaN HEMT structures with 2 and 5 μm GaN buffer layers on sapphire substrates from two different vendors with the same Al concentration of AlGaN were used. The defect densities of HEMT structures with 2 and 5 μm GaN buffer layer were 7 × 109 and 5 × 108 cm₋2, respectively, as measured by transmission electron microscopy. There was little difference in drain saturation current or in transfer characteristics in HEMTs on these two types of buffer. However, there was no dispersion observed on the nonpassivated HEMTs with 5 μm GaN buffer layer for gate-lag pulsed measurement at 100 kHz, which was in sharp contrast to the 71% drain current reduction for the HEMT with 2 μm GaN buffer layer.

  13. Integrating AlGaN/GaN high electron mobility transistor with Si: A comparative study of integration schemes

    SciTech Connect (OSTI)

    Mohan, Nagaboopathy; Raghavan, Srinivasan; Manikant,; Soman, Rohith

    2015-10-07

    AlGaN/GaN high electron mobility transistor stacks deposited on a single growth platform are used to compare the most common transition, AlN to GaN, schemes used for integrating GaN with Si. The efficiency of these transitions based on linearly graded, step graded, interlayer, and superlattice schemes on dislocation density reduction, stress management, surface roughness, and eventually mobility of the 2D-gas are evaluated. In a 500 nm GaN probe layer deposited, all of these transitions result in total transmission electron microscopy measured dislocations densities of 1 to 3 × 10{sup 9}/cm{sup 2} and <1 nm surface roughness. The 2-D electron gas channels formed at an AlGaN-1 nm AlN/GaN interface deposited on this GaN probe layer all have mobilities of 1600–1900 cm{sup 2}/V s at a carrier concentration of 0.7–0.9 × 10{sup 13}/cm{sup 2}. Compressive stress and changes in composition in GaN rich regions of the AlN-GaN transition are the most effective at reducing dislocation density. Amongst all the transitions studied the step graded transition is the one that helps to implement this feature of GaN integration in the simplest and most consistent manner.

  14. Electron tunneling spectroscopy study of electrically active traps in AlGaN/GaN high electron mobility transistors

    SciTech Connect (OSTI)

    Yang, Jie Cui, Sharon; Ma, T. P.; Hung, Ting-Hsiang; Nath, Digbijoy; Krishnamoorthy, Sriram; Rajan, Siddharth

    2013-11-25

    We investigate the energy levels of electron traps in AlGaN/GaN high electron mobility transistors by the use of electron tunneling spectroscopy. Detailed analysis of a typical spectrum, obtained in a wide gate bias range and with both bias polarities, suggests the existence of electron traps both in the bulk of AlGaN and at the AlGaN/GaN interface. The energy levels of the electron traps have been determined to lie within a 0.5?eV band below the conduction band minimum of AlGaN, and there is strong evidence suggesting that these traps contribute to Frenkel-Poole conduction through the AlGaN barrier.

  15. Fiscal Year 1998 Well Installation, Plugging and Abandonment, and Redevelopment summary report Y-12 Plant, Oak Ridge, Tennessee

    SciTech Connect (OSTI)

    1998-12-01

    This report summarizes the well installation, plugging and abandonment, and redevelopment activities conducted during the federal fiscal year (FY) 1998 at the Y-12 Plant, Oak Ridge, Tennessee. Five new groundwater monitoring wells were installed at the Y-12 Plant under the FY 1998 drilling program. Two of the wells are located in west Bear Creek Valley, one is in the eastern Y-12 Plant area near Lake Reality, and two are located near the Oil Landfarm Waste Management Area, which were installed by Bechtel Jacobs Company LLC (Bechtel Jacobs) as part of a site characterization activity for the Oak Ridge Reservation (ORR) Disposal Cell. Also, two existing wells were upgraded and nine temporary piezometers were installed to characterize hydrogeologic conditions at the Disposal Cell site. In addition, 40 temporary piezometers were installed in the Boneyard/Bumyard area of Bear Creek Valley by Bechtel Jacobs as part of the accelerated remedial actions conducted by the Environmental Restoration Program. Ten monitoring wells at the Y-12 Plant were decommissioned in FY 1998. Two existing monitoring wells were redeveloped during FY 1998 (of these, GW-732 was redeveloped tsvice). All well installation and development (including redevelopment) was conducted following industry-standard methods and approved procedures from the Environmental Surveillance Procedures Quality Control Program (Energy Systems 1988); the Resource Conservation and Recovery Act (RCRA) Groundwater Monitoring Technical Enforcement Guidance Document (EPA 1992); and the Monitoring Well Installation Plan for the Department of Energy Y-12 Plant, Oak Ridge, Tennessee (Energy Systems 1997a). Well installation and development of the non-Y-12 Plant GWPP oversight installation projects were conducted using procedures/guidance defined in the following documents: Work Plan for Support to Upper East Fork Poplar Creek East End Volatile Organic Compound Plumes Well Installation Project, Oak Ridge Y-12 Plant, Oak Ridge

  16. ,"Tennessee Natural Gas Price Sold to Electric Power Consumers (Dollars per Thousand Cubic Feet)"

    U.S. Energy Information Administration (EIA) (indexed site)

    Annual",2015 ,"Release Date:","10/31/2016" ,"Next Release Date:","11/30/2016" ,"Excel File Name:","n3045tn3a.xls" ,"Available from Web Page:","http://tonto.eia.gov/dnav/ng/hist/n3045tn3a.htm" ,"Source:","Energy Information Administration" ,"For Help, Contact:","infoctr@eia.doe.gov" ,,"(202) 586-8800",,,"10/28/2016 9:36:09 PM" "Back to

  17. ,"Tennessee Natural Gas Price Sold to Electric Power Consumers (Dollars per Thousand Cubic Feet)"

    U.S. Energy Information Administration (EIA) (indexed site)

    Monthly","8/2016" ,"Release Date:","10/31/2016" ,"Next Release Date:","11/30/2016" ,"Excel File Name:","n3045tn3m.xls" ,"Available from Web Page:","http://tonto.eia.gov/dnav/ng/hist/n3045tn3m.htm" ,"Source:","Energy Information Administration" ,"For Help, Contact:","infoctr@eia.doe.gov" ,,"(202) 586-8800",,,"10/28/2016 9:36:09 PM" "Back

  18. Analysis of defects in GaAsN grown by chemical beam epitaxy on high index GaAs substrates

    SciTech Connect (OSTI)

    Bouzazi, Boussairi; Kojima, Nobuaki; Ohshita, Yoshio; Yamaguchi, Masafumi

    2013-09-27

    The lattice defects in GaAsN grown by chemical beam epitaxy on GaAs 311B and GaAs 10A toward [110] were characterized and discussed by using deep level transient spectroscopy (DLTS) and on the basis of temperature dependence of the junction capacitances (C{sub J}). In one hand, GaAsN films grown on GaAs 311B and GaAs 10A showed n-type and p-type conductivities, respectively although the similar and simultaneous growth conditions. This result is indeed in contrast to the common known effect of N concentration on the type of conductivity, since the surface 311B showed a significant improvement in the incorporation of N. Furthermore, the temperature dependence of C{sub J} has shown that GaAs 311B limits the formation of N-H defects. In the other hand, the energy states in the forbidden gap of GaAsN were obtained. Six electron traps, E1 to E6, were observed in the DLTS spectrum of GaAsN grown on GaAs 311B, with apparent activation energies of 0.02, 0.14, 0.16, 0.33, 0.48, and 0.74 eV below the bottom edge of the conduction band, respectively. In addition, four hole traps, H1 to H4, were observed in the DLTS spectrum of GaAsN grown on GaAs 10A, with energy depths of 0.13, 0.20, 0.39, and 0.52 eV above the valence band maximum of the alloy, respectively. Hence, the surface morphology of the GaAs substrate was found to play a key factor role in clarifying the electrical properties of GaAsN grown by CBE.

  19. Environmental Baseline Survey Report for the Title Transfer of the K-792 Switchyard Complex at the East Tennessee Technology Park, Oak Ridge, Tennessee

    SciTech Connect (OSTI)

    SAIC

    2009-12-01

    This environmental baseline survey (EBS) documents the baseline environmental conditions of the U. S. Department of Energy's (DOE's) K-792 Switchyard Complex, which includes the former K-792 Switchyard, the K-79 1-B building, the K-796-A building, and the K-792 Northern Expansion Area located in the northwestern portion of the East Tennessee Technology Park (ETTP). The total area of the property is approximately 19.91 acres. DOE is proposing to transfer the title of this land area and buildings to the Heritage Center, LLC (Heritage Center), a subsidiary corporation of the Community Reuse Organization of East Tennessee (CROET). This report provides supporting information for the transfer of this government-owned facility at ETTP to a non-federal entity. The area proposed for title transfer includes the former K-792 Switchyard, the K-792 Northern Expansion Area, Bldg. K-791-B, Bldg. K-796-A, and the underlying property known as the underlying fee. Located within the K-792 Switchyard footprint but not included in the transfer are Bldg. K-131 0-MP and Bldg. K- 131 0-MQ, two buildings owned by a private company that leases space in the northern portion of the Switchyard. The transfer footprint is bounded by Perimeter Road to the north and west, the parking area for Portal 8 to the south, and primarily the former K-792 Powerhouse Complex and Avenue 'U' North to the east; however, the eastern boundary along the Northern Expansion area has no physical features associated with it. Zone 2 remedial action objectives were developed by the DVS to support the future use of ETTP as a mixed-use commercial and industrial park. Therefore, remediation criteria were designed for the protection of the future industrial worker under the assumption the worker normally would not have the potential for exposure to soils at depths below 10 ft below ground surface (bgs). Accordingly, land use controls (LUCs) have been established to restrict disturbance of soils below 10 ft deep and to limit

  20. Structure and magnetic properties of Ce₃(Ni/Al/Ga)₁₁—A new phase with the La₃Al₁₁ structure type

    DOE PAGES-Beta [OSTI]

    Janka, Oliver; Shang, Tian; Baumbach, Ryan E.; Bauer, Eric D.; Thompson, Joe D.; Kauzlarich, Susan M.

    2015-03-01

    Single crystals of Ce₃(Ni/Al/Ga)₁₁ were obtained from an Al flux reaction. Single crystals of the title compound crystallizing in the orthorhombic space group Immm (No. 71, Z = 2) with a = 436.38(14), b = 1004.5(3) and c = 1293.4(4) pm. This is a standardized unit cell of the previously published La₃Al₁₁ structure type. Wavelength dispersive microprobe provides the composition of Ce₃.₁₁₍₁₎Ni₀.₀₃₍₁₎Al₈.₉₅₍₁₎Ga₁.₉₀₍₁₎. Single crystal refinement provides the composition Ce₃Ni₀.₀₈Al₉.₁₃Ga₁.₇₈ with substitution of the Ni and Ga on the Al1 and Al4 sites with the Al2 and Al3 solely occupied by Al. Magnetic susceptibility measurements reveal antiferromagnetic ordering with TN =more » 4.8 K and there is no evidence for a ferromagnetic ordering that has been reported for Ce₃Al₁₁. The effective magnetic moment was found to be μeff = 1.9μB/Ce, which is lower than the expected value for trivalent Ce (2.54μB/Ce).« less

  1. Site descriptions of environmental restoration units at the Oak Ridge K-25 Site, Oak Ridge, Tennessee

    SciTech Connect (OSTI)

    Goddard, P.L.; Legeay, A.J.; Pesce, D.S.; Stanley, A.M.

    1995-11-01

    This report, Site Descriptions of Environmental Restoration Units at the Oak Ridge K-25 Site, Oak Ridge, Tennessee, is being prepared to assimilate information on sites included in the Environmental Restoration (ER) Program of the K-25 Site, one of three major installations on the Oak Ridge Reservation (ORR) built during World War III as part of the Manhattan Project. The information included in this report will be used to establish program priorities so that resources allotted to the K-25 ER Program can be best used to decrease any risk to humans or the environment, and to determine the sequence in which any remedial activities should be conducted. This document will be updated periodically in both paper and Internet versions. Units within this report are described in individual data sheets arranged alphanumerically. Each data sheet includes entries on project status, unit location, dimensions and capacity, dates operated, present function, lifecycle operation, waste characteristics, site status, media of concern, comments, and references. Each data sheet is accompanied by a photograph of the unit, and each unit is located on one of 13 area maps. These areas, along with the sub-area, unit, and sub-unit breakdowns within them, are outlined in Appendix A. Appendix B is a summary of information on remote aerial sensing and its applicability to the ER program.

  2. Environmental monitoring plan for Waste Area Grouping 6 at Oak Ridge National Laboratory, Oak Ridge, Tennessee

    SciTech Connect (OSTI)

    1995-09-01

    This document presents an Environmental Monitoring Plan (EMP) for Waste Area Grouping (WAG 6) at Oak Ridge National Laboratory (ORNL). This document updates a draft monitoring plan developed in 1993. The draft plan was never finalized awaiting resolution of the mechanisms for addressing RCRA concerns at a site where the CERCLA process resulted in a decision to defer action, i.e., postpone closure indefinitely. Over the past two years the Tennessee Department of Environment and Conservation (TDEC), US Department of Energy (DOE), and US Environmental Protection Agency (EPA) Region IV, have agreed that RCRA authority at the site will be maintained through a post- closure permit; ``closure`` in this case referring to deferred action. Both a Revised Closure Plan (DOE 1995a) and a Post-Closure Permit Application (DOE 1995b) have been developed to document this agreement; relevant portions of the EMP will be included in the RCRA Post-Closure Permit Application. As the RCRA issues were being negotiated, DOE initiated monitoring at WAG 6. The purpose of the monitoring activities was to (1) continue to comply with RCRA groundwater quality assessment requirements, (2) install new monitoring equipment, and (3) establish the baseline conditions at WAG 6 against which changes in contaminant releases could be measured. Baseline monitoring is scheduled to end September 30, 1995. Activities that have taken place over the past two years are summarized in this document.

  3. Underground storage tank management plan, Oak Ridge Y-12 Plant, Oak Ridge, Tennessee

    SciTech Connect (OSTI)

    1997-09-01

    The Underground Storage Tank (UST) Program at the Oak Ridge Y-12 Plant was established to locate UST systems at the facility and to ensure that all operating UST systems are free of leaks. UST systems have been removed or upgraded in accordance with Tennessee Department of Environment and Conservation (TDEC) regulations and guidance. With the closure of a significant portion of the USTs, the continuing mission of the UST Management Program is to manage the remaining active UST systems and continue corrective actions in a safe regulatory compliant manner. This Program outlines the compliance issues that must be addressed, reviews the current UST inventory and compliance approach, and presents the status and planned activities associated with each UST system. The UST Program provides guidance for implementing TDEC regulations and guidelines for petroleum UST systems. The plan is divided into three major sections: (1) regulatory requirements, (2) active UST sites, and (3) out-of-service UST sites. These sections describe in detail the applicable regulatory drivers, the UST sites addressed under the Program, and the procedures and guidance for compliance.

  4. Natural and Accelerated Bioremediation Research (NABIR) Field Research Center (FRC), Oak Ridge Tennessee

    SciTech Connect (OSTI)

    Watson, David; Jardine, Philip; Gu, Baohua; Parker, Jack; Brandt, Craig; Holladay, Susan; Wolfe, Amy; Bogle, Mary Anna; Lowe, Kenneth; Hyder, Kirk

    2006-06-01

    The Field Research Center (FRC) in Oak Ridge (Fig. 1), Tennessee supports the U.S. Department of Energy's (DOE's) Environmental Remediation Sciences Program (ERSP) goal of understanding the complex physical, chemical, and biological properties of contaminated sites for new solutions to environmental remediation and long-term stewardship. In particular, the FRC provides the opportunity for researchers to conduct studies that promote the understanding of the processes that influence the transport and fate of subsurface contaminants, the effectiveness and long-term consequences of existing remediation options, and the development of improved remediation strategies. It offers a series of contaminated sites around the former S-3 Waste Disposal Ponds and uncontaminated sites in which investigators and students conduct field research or collect samples for laboratory analysis. FRC research also spurs the development of new and improved characterization and monitoring tools. Site specific knowledge gained from research conducted at the FRC also provides the DOE-Oak Ridge Office of Environmental Management (EM) the critical scientific knowledge needed to make cleanup decisions for the S-3 Ponds and other sites on the Oak Ridge Reservation (ORR).

  5. Certification report for final closure of Y-12 Centralized Sanitary Landfill II, Oak Ridge, Tennessee

    SciTech Connect (OSTI)

    1995-12-31

    This report represents the Geotek Engineering Company, Inc., (Geotek) record of activities to support certification of final closure Of the subject Y-12 Centralized Sanitary Landfill II. Ex as noted herein, final closure of the landfill was completed in accordance with the Y-12 Centralized Sanitary Landfill 11 Closure/Post Closure Plan, Revision 2, submitted by the US Department of Energy (DOE) to the Tennessee Department of Environment and Conservation (TDEC) on April 14, 1992, and approved by TDEC on May 27, 1994 (the ``Closure Plan``). minor modification to the Closure Plan allowing partial closure of the Y-12 Centralized Sanitary Landfill II (Phase 1) was approved by TDEC on August 3, 1994. The Phase I portion of the closure for the subject landfill was completed on March 25, 1995. A closure certification report entitled Certification Report for Partial Closure of Y-12 Centralized Sanitary Landfill II was submitted to Lockheed Martin Energy Systems, Inc., (LMES) on March 28, 1995. The final closure represents the completion of the closure activities for the entire Y-12 Centralized Sanitary Landfill II Site. The contents of this report and accompanying certification are based on observations by Geotek engineers and geologists during closure activities and on review of reports, records, laboratory test results, and other information furnished to Geotek by LMES.

  6. Tennessee Natural Gas in Underground Storage - Change in Working Gas from

    U.S. Energy Information Administration (EIA) (indexed site)

    Same Month Previous Year (Percent) Percent) Tennessee Natural Gas in Underground Storage - Change in Working Gas from Same Month Previous Year (Percent) Year Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec 1997 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 1998 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 1999 43.0 55.3 41.7 61.2 59.6 131.5 70.6 38.1 29.2 25.1 16.0 8.6 2000 5.3 -3.2 12.8 21.0 16.7 -19.5 -34.7 -42.4 -50.4 -50.8 -41.4 -27.6 2001 -9.8 9.3 8.4 8.3 41.3 71.7 80.1 97.0 109.6

  7. Health-hazard evaluation report HETA-86-381-1934, Nuclear Fuel Services, Erwin, Tennessee

    SciTech Connect (OSTI)

    Thun, M.J.; Schober, S.

    1988-10-01

    In response to a request from the U.S. Nuclear Regulatory Commission, a study was made of excessive kidney disease at Nuclear Fuel Services, Erwin, Tennessee. This facility was the sole producer of nuclear fuel rods for the United States Navy. The major operations involved the production of highly enriched uranium fuel for naval nuclear reactors and the recovery from scrap of low enriched uranium for commercial light water reactors. Highly enriched uranium-hexafluoride was converted to oxides and ultimately into finished nuclear fuel. A medical questionnaire revealed more frequent kidney stones (19%) and urinary tract infections (28%) among the workers than among the guards used as a comparison group, 7 and 12%, respectively. Dairy farmers from a nearby town used as an additional comparison group reported kidney stones more frequently (26 versus 21%) and infections less frequently (20 versus 30%) than the current and former senior workers at the nuclear facility. Kidney function was similar in both groups. Workers in both groups had frequent risk factors for kidney stones, particularly high calcium, oxalate, sodium, uric-acid, phosphorus and low urinary volume on testing. The authors conclude that the urinary tract disorders in the nuclear workers were not the result of occupational hazards at this site.

  8. Lease of Parcel ED-1 of the Oak Ridge Reservation by the East Tennessee Economic Council

    SciTech Connect (OSTI)

    1996-04-01

    The US Department of Energy (DOE) has completed an environmental assessment (DOE/EA-1113) for the proposed lease of 957.16 acres of the Oak Ridge Reservation (ORR) to the East Tennessee Economic Council (ETEC), a non-profit community organization, for a period of 10 years, with an option for renewal. ETEC proposes to develop an industrial park on the leased site to provide employment opportunities for DOE and contractor employees affected by decreased federal funding. Based on the results of the analysis reported in the EA and implementation of mitigation measures defined in this Finding of No Significant Impact (FONSI), DOE has determined that the proposed action is not a major Federal action that would significantly affect the quality of the human environment within the context of the National Environmental Policy Act of 1969 (NEPA). Therefore, preparation of an environmental impact statement (EIS) is not necessary, and DOE is issuing this mitigated FONSI. DOE will implement a Mitigation Action Plan for this project and provide annual reports on mitigation and monitoring.

  9. Fiscal year 1995 well plugging and abandonment program Y-12 Plant, Oak Ridge, Tennessee

    SciTech Connect (OSTI)

    1995-09-01

    This report is a synopsis of the progress of the well plugging and abandonment program at the Y-12 Plant, Oak Ridge, Tennessee, from September 1994 through August 1995. A total of 67 wells, piezometers, and borings were plugged and abandoned during the period of time covered in this report. All wells and borings were plugged and abandoned if (1) its construction did not meet current standards (substandard construction); (2) it was irreparably damaged or had deteriorated beyond practical repair; (3) its location interfered with or otherwise impeded site operations, construction, or closure activities; or (4) special circumstances existed as defined on a case-by-case basis and approved by the Y-12 Plant Groundwater Protection Program (GWPP) Manager. This summary report contains: general geologic setting of the Y-12 Plant and vicinity; discussion of well plugging and abandonment methods, grouting procedures, and waste management practices (a Waste Management Plan for Drilling Activities is included in Appendix C); summaries of plugging and abandonment activities at each site; and quality assurance/quality control (QA/QC) and health and safety protocols used during the FY 1995 Plugging and Abandonment Program.

  10. Characterization plan for the Oak Ridge National Laboratory Area-Wide Groundwater Program, Oak Ridge, Tennessee

    SciTech Connect (OSTI)

    Not Available

    1994-08-01

    This characterization plan has been developed as part of the U.S. Department of Energy`s (DOE`s) investigation of the Groundwater Operable Unit (GWOU) at Oak Ridge National Laboratory (ORNL) located near Oak Ridge, Tennessee. The first iteration of the characterization plan is intended to serve as a strategy document to guide subsequent GWOU remedial investigations. The plan provides a rationale and organization for groundwater data acquisition, monitoring, and remedial actions to be performed during implementation of environmental restoration activities associated with the ORNL GWOU. It is important to note that the characterization plan for the ORNL GWOU is not a prototypical work plan. As such, remedial investigations will be conducted using annual work plans to manage the work activities, and task reports will be used to document the results of the investigations. Sampling and analysis results will be compiled and reported annually with a review of data relative to risk (screening level risk assessment review) for groundwater. This characterization plan outlines the overall strategy for the remedial investigations and defines tasks that are to be conducted during the initial phase of investigation. This plan is presented with the understanding that more specific addenda to the plan will follow.

  11. Quality assurance plan for Waste Area Grouping 6 at Oak Ridge National Laboratory, Oak Ridge, Tennessee

    SciTech Connect (OSTI)

    Not Available

    1994-01-01

    This Quality Assurance Plan (QAP) is concerned with design and construction (Sect. 2) and characterization and monitoring (Sect. 3). The basis for Sect. 2 is the Quality Assurance Plan for the Design and Construction of Waste Area Grouping 6 Closure at Oak Ridge National Laboratory, Oak Ridge, Tennessee, and the basis for Sect. 3 is the Environmental Restoration Quality Program Plan. Combining the two areas into one plan gives a single, overall document that explains the requirements and from which the individual QAPs and quality assurance project plans can be written. The Waste Area Grouping (WAG) 6 QAP establishes the procedures and requirements to be implemented for control of quality-related activities for the WAG 6 project. Quality Assurance (QA) activities are subject to requirements detailed in the Martin Marietta Energy Systems, Inc. (Energy Systems), QA Program and the Environmental Restoration (ER) QA Program, as well as to other quality requirements. These activities may be performed by Energy Systems organizations, subcontractors to Energy Systems, and architect-engineer (A-E) under prime contract to the US Department of Energy (DOE), or a construction manager under prime contract to DOE. This plan specifies the overall Energy Systems quality requirements for the project. The WAG 6 QAP will be supplemented by subproject QAPs that will identify additional requirements pertaining to each subproject.

  12. Routine environmental audit of the K-25 Site, Oak Ridge, Tennessee

    SciTech Connect (OSTI)

    Not Available

    1994-02-01

    This report documents the results of the Routine Environmental Audit of the K-25 Site in Oak Ridge, Tennessee, conducted February 14 through February 25, 1994, by the US Department of Energy`s (DOE`s) Office of Environmental Audit (EH-24) located within the Office of Environment, Safety and Health (EH). The Routine Environmental Audit for the K-25 site was conducted as an environmental management assessment, supported through reviews of the Waste Management Program and the Decontamination and Decommissioning Program. The assessment was conducted jointly with, and built upon, the results provided by the ``DOE Oak Ridge Operations Office Environment, Safety, health and Quality Assurance Appraisal at the K-25 Site.`` DOE 5482.1B, ``Environment, Safety and Health Appraisal Program,`` established the mission of EH-24 to provide comprehensive, independent oversight of Department-wide environmental programs on behalf of the Secretary of Energy. The purpose of this assessment is to provide the Secretary of Energy and senior DOE managers with concise independent information as part of DOE`s continuing effort to improve environmental program performance. The ultimate goal of EH-24 is enhancement of environmental protection and the minimization of risk to public health and the environment. The routine environmental audit is one method by which EH-24 accomplishes its mission, utilizing systematic and periodic evaluations of the Department`s environmental programs within line organizations.

  13. Report of the Advanced Neutron Source (ANS) safety workshop, Knoxville, Tennessee, October 25--26, 1988

    SciTech Connect (OSTI)

    Buchanan, J.R.; Dumont, J.N.; Kendrick, C.M.; Row, T.H.; Thompson, P.B.; West, C.D.; Marchaterre, J.F.; Muhlheim, M.D.; McBee, M.R.

    1988-12-01

    On October 25--26, 1988, about 60 people took part in an Advanced Neutron Source (ANS) Safety Workshop, organized in cooperation with the Oak Ridge Operations (ORO) Office of the Department of Energy (DOE) and held in Knoxville, Tennessee. After a plenary session at which ANS Project staff presented status reports on the ANS design, research and development (R and D), and safety analysis efforts, the workshop broke into three working groups, each covering a different topic: Environmental and Waste Management, Applicable Regulatory Safety Criteria and Goals, and Reactor Concepts. Each group was asked to review the Project's approach to safety-related issues and to provide guidance on future reactor safety needs or directions for the Project. With the help of able chairmen, assisted by reporters and secretarial support, the working groups were extremely successful. Draft reports from each group were prepared before the workshop closed, and the major findings of each group were presented for review and discussion by the entire workshop attendance. This report contains the final version of the group reports, incorporating the results of the overall review by all the workshop participants.

  14. Refractive index of erbium doped GaN thin films

    SciTech Connect (OSTI)

    Alajlouni, S.; Sun, Z. Y.; Li, J.; Lin, J. Y.; Jiang, H. X.; Zavada, J. M.

    2014-08-25

    GaN is an excellent host for erbium (Er) to provide optical emission in the technologically important as well as eye-safe 1540 nm wavelength window. Er doped GaN (GaN:Er) epilayers were synthesized on c-plane sapphire substrates using metal organic chemical vapor deposition. By employing a pulsed growth scheme, the crystalline quality of GaN:Er epilayers was significantly improved over those obtained by conventional growth method of continuous flow of reaction precursors. X-ray diffraction rocking curve linewidths of less than 300 arc sec were achieved for the GaN (0002) diffraction peak, which is comparable to the typical results of undoped high quality GaN epilayers and represents a major improvement over previously reported results for GaN:Er. Spectroscopic ellipsometry was used to determine the refractive index of the GaN:Er epilayers in the 1540 nm wavelength window and a linear dependence on Er concentration was found. The observed refractive index increase with Er incorporation and the improved crystalline quality of the GaN:Er epilayers indicate that low loss GaN:Er optical waveguiding structures are feasible.

  15. 0.7-eV GaInAs Junction for a GaInP/GaAs/GaInAs(1eV)/GaInAs(0.7eV) Four-Junction Solar Cell

    SciTech Connect (OSTI)

    Friedman, D. J.; Geisz, J. F.; Norman, A. G.; Wanlass, M. W.; Kurtz, S. R.

    2006-01-01

    We discuss recent developments in III-V multijunction solar cells, focusing on adding a fourth junction to the Ga{sub 0.5}In{sub 0.5} P/GaAs/Ga{sub 0.75}In{sub 0.25}As inverted three-junction cell. This cell, grown inverted on GaAs so that the lattice-mismatched Ga{sub 0.75}In{sub 0.25}As third junction is the last one grown, has demonstrated 38% efficiency, and 40% is likely in the near future. To achieve still further gains, a lower-bandgap Ga{sub x}In{sub 1-x}As fourth junction could be added to the three-junction structure for a four-junction cell whose efficiency could exceed 45% under concentration. Here, we present the initial development of the Ga{sub x}In{sub 1-x}As fourth junction. Junctions of various bandgaps ranging from 0.88 to 0.73 eV were grown, in order to study the effect of the different amounts of lattice mismatch. At a bandgap of 0.88 eV, junctions were obtained with very encouraging {approx}80% quantum efficiency, 57% fill factor, and 0.36 eV open-circuit voltage. The device performance degrades with decreasing bandgap (i.e., increasing lattice mismatch). We model the four-junction device efficiency vs. fourth junction bandgap to show that an 0.7-eV fourth-junction bandgap, while optimal if it could be achieved in practice, is not necessary; an 0.9-eV bandgap would still permit significant gains in multijunction cell efficiency while being easier to achieve than the lower-bandgap junction.

  16. Ab initio study of Ga-GaN system: Transition from adsorbed metal atoms to a metal–semiconductor junction

    SciTech Connect (OSTI)

    Witczak, Przemysław; Kempisty, Pawel; Strak, Pawel

    2015-11-15

    Ab initio studies of a GaN(0001)-Ga system with various thicknesses of a metallic Ga layer were undertaken. The studied systems extend from a GaN(0001) surface with a fractional coverage of gallium atoms to a Ga-GaN metal–semiconductor (m–s) contact. Electronic properties of the system are simulated using density functional theory calculations for different doping of the bulk semiconductor. It is shown that during transition from a bare GaN(0001) surface to a m–s heterostructure, the Fermi level stays pinned at a Ga-broken bond highly dispersive surface state to Ga–Ga states at the m–s interface. Adsorption of gallium leads to an energy gain of about 4 eV for a clean GaN(0001) surface and the energy decreases to 3.2 eV for a thickly Ga-covered surface. The transition to the m–s interface is observed. For a thick Ga overlayer such interface corresponds to a Schottky contact with a barrier equal to 0.9 and 0.6 eV for n- and p-type, respectively. Bond polarization-related dipole layer occurring due to an electron transfer to the metal leads to a potential energy jump of 1.5 eV, independent on the semiconductor doping. Additionally high electron density in the Ga–Ga bond region leads to an energy barrier about 1.2 eV high and 4 Å wide. This feature may adversely affect the conductivity of the n-type m–s system.

  17. Distributed bragg reflector using AIGaN/GaN

    DOE Patents [OSTI]

    Waldrip, Karen E.; Lee, Stephen R.; Han, Jung

    2004-08-10

    A supported distributed Bragg reflector or superlattice structure formed from a substrate, a nucleation layer deposited on the substrate, and an interlayer deposited on the nucleation layer, followed by deposition of (Al,Ga,B)N layers or multiple pairs of (Al,Ga,B)N/(Al,Ga,B)N layers, where the interlayer is a material selected from AlN, Al.sub.x Ga.sub.1-x N, and AlBN with a thickness of approximately 20 to 1000 angstroms. The interlayer functions to reduce or eliminate the initial tensile growth stress, thereby reducing cracking in the structure. Multiple interlayers utilized in an AlGaN/GaN DBR structure can eliminate cracking and produce a structure with a reflectivity value greater than 0.99.

  18. Efficiency enhancement of InGaN/GaN solar cells with nanostructures

    SciTech Connect (OSTI)

    Bai, J.; Yang, C. C.; Athanasiou, M.; Wang, T.

    2014-02-03

    We demonstrate InGaN/GaN multi-quantum-well solar cells with nanostructures operating at a wavelength of 520?nm. Nanostructures with a periodic nanorod or nanohole array are fabricated by means of modified nanosphere lithography. Under 1 sun air-mass 1.5 global spectrum illumination, a fill factor of 50 and an open circuit voltage of 1.9?V are achieved in spite of very high indium content in InGaN alloys usually causing degradation of crystal quality. Both the nanorod array and the nanohole array significantly improve the performance of solar cells, while a larger enhancement is observed for the nanohole array, where the conversion efficiency is enhanced by 51%.

  19. Raman spectroscopy of InGaAs/GaAs nanoheterostructures δ-doped with Mn

    SciTech Connect (OSTI)

    Plankina, S. M.; Vikhrova, O. V.; Danilov, Yu. A.; Zvonkov, B. N.; Kalentyeva, I. L.; Nezhdanov, A. V.; Chunin, I. I.; Yunin, P. A.

    2015-01-15

    The results of complex studies of InGaAs/GaAs nanoheterostructures δ-doped with Mn are reported. The structures are grown by metal-organic vapor-phase epitaxy in combination with laser deposition. By confocal Raman spectroscopy, it is shown that the low-temperature δ-doped GaAs cap layers are of higher crystal quality compared to uniformly doped layers. Scattering of light in the coupled phonon-plasmon mode is observed. The appearance of this mode is conditioned by the diffusion of manganese from the δ-layer. The thickness of the cap layer is found to be d{sub c} ≈ 9–20 nm, optimal for attainment of the highest photoluminescence intensity of the quantum well and the highest layer concentration of holes by doping with manganese.

  20. Electrical compensation by Ga vacancies in Ga{sub 2}O{sub 3} thin films

    SciTech Connect (OSTI)

    Korhonen, E.; Tuomisto, F.; Gogova, D.; Wagner, G.; Baldini, M.; Galazka, Z.; Schewski, R.; Albrecht, M.

    2015-06-15

    The authors have applied positron annihilation spectroscopy to study the vacancy defects in undoped and Si-doped Ga{sub 2}O{sub 3} thin films. The results show that Ga vacancies are formed efficiently during metal-organic vapor phase epitaxy growth of Ga{sub 2}O{sub 3} thin films. Their concentrations are high enough to fully account for the electrical compensation of Si doping. This is in clear contrast to another n-type transparent semiconducting oxide In{sub 2}O{sub 3}, where recent results show that n-type conductivity is not limited by cation vacancies but by other intrinsic defects such as O{sub i}.

  1. Graphene in ohmic contact for both n-GaN and p-GaN

    SciTech Connect (OSTI)

    Zhong, Haijian; Liu, Zhenghui; Shi, Lin; Xu, Gengzhao; Fan, Yingmin; Huang, Zengli; Wang, Jianfeng; Ren, Guoqiang; Xu, Ke

    2014-05-26

    The wrinkles of single layer graphene contacted with either n-GaN or p-GaN were found both forming ohmic contacts investigated by conductive atomic force microscopy. The local IV results show that some of the graphene wrinkles act as high-conductive channels and exhibiting ohmic behaviors compared with the flat regions with Schottky characteristics. We have studied the effects of the graphene wrinkles using density-functional-theory calculations. It is found that the standing and folded wrinkles with zigzag or armchair directions have a tendency to decrease or increase the local work function, respectively, pushing the local Fermi level towards n- or p-type GaN and thus improving the transport properties. These results can benefit recent topical researches and applications for graphene as electrode material integrated in various semiconductor devices.

  2. A InGaN/GaN quantum dot green ({lambda}=524 nm) laser

    SciTech Connect (OSTI)

    Zhang Meng; Banerjee, Animesh; Lee, Chi-Sen; Hinckley, John M.; Bhattacharya, Pallab

    2011-05-30

    The characteristics of self-organized InGaN/GaN quantum dot lasers are reported. The laser heterostructures were grown on c-plane GaN substrates by plasma-assisted molecular beam epitaxy and the laser facets were formed by focused ion beam etching with gallium. Emission above threshold is characterized by a peak at 524 nm (green) and linewidth of 0.7 nm. The lowest measured threshold current density is 1.2 kA/cm{sup 2} at 278 K. The slope and wall plug efficiencies are 0.74 W/A and {approx}1.1%, respectively, at 1.3 kA/cm{sup 2}. The value of T{sub 0}=233 K in the temperature range of 260-300 K.

  3. Photocapacitance study of type-II GaSb/GaAs quantum ring solar cells

    SciTech Connect (OSTI)

    Wagener, M. C.; Botha, J. R.; Carrington, P. J.; Krier, A.

    2014-01-07

    In this study, the density of states associated with the localization of holes in GaSb/GaAs quantum rings are determined by the energy selective charging of the quantum ring distribution. The authors show, using conventional photocapacitance measurements, that the excess charge accumulated within the type-II nanostructures increases with increasing excitation energies for photon energies above 0.9?eV. Optical excitation between the localized hole states and the conduction band is therefore not limited to the ?(k?=?0) point, with pseudo-monochromatic light charging all states lying within the photon energy selected. The energy distribution of the quantum ring states could consequently be accurately related from the excitation dependence of the integrated photocapacitance. The resulting band of localized hole states is shown to be well described by a narrow distribution centered 407?meV above the GaAs valence band maximum.

  4. Temperature dependency of the emission properties from positioned In(Ga)As/GaAs quantum dots

    SciTech Connect (OSTI)

    Braun, T.; Schneider, C.; Maier, S.; Forchel, A.; Höfling, S.; Kamp, M.; Igusa, R.; Iwamoto, S.; Arakawa, Y.

    2014-09-15

    In this letter we study the influence of temperature and excitation power on the emission linewidth from site-controlled InGaAs/GaAs quantum dots grown on nanoholes defined by electron beam lithography and wet chemical etching. We identify thermal electron activation as well as direct exciton loss as the dominant intensity quenching channels. Additionally, we carefully analyze the effects of optical and acoustic phonons as well as close-by defects on the emission linewidth by means of temperature and power dependent micro-photoluminescence on single quantum dots with large pitches.

  5. The disintegration of GaSb/GaAs nanostructures upon capping

    SciTech Connect (OSTI)

    Martin, Andrew J.; Hwang, Jinyoung; Marquis, Emmanuelle A.; Smakman, Erwin; Saucer, Timothy W.; Rodriguez, Garrett V.; Hunter, Allen H.; Sih, Vanessa; Koenraad, Paul M.; Phillips, Jamie D.; Millunchick, Joanna

    2013-01-01

    Atom probe tomography and cross-sectional scanning tunneling microscopy show that GaSb/GaAs quantum dots disintegrate into ring-like clusters of islands upon capping. Band transition energies calculated using an 8-band k.p model of the capped dots with the observed dimensions are consistent with emission energies observed in photoluminescence data. These results emphasize the need for full three-dimensional characterization to develop an accurate understanding of the structure, and thus the optical properties, of buried quantum dots.

  6. Photoluminescence studies of individual and few GaSb/GaAs quantum rings

    SciTech Connect (OSTI)

    Young, M. P.; Woodhead, C. S.; Roberts, J.; Noori, Y. J.; Noble, M. T.; Krier, A.; Hayne, M.; Young, R. J.; Smakman, E. P.; Koenraad, P. M.

    2014-11-15

    We present optical studies of individual and few GaSb quantum rings embedded in a GaAs matrix. Contrary to expectation for type-II confinement, we measure rich spectra containing sharp lines. These lines originate from excitonic recombination and are observed to have resolution-limited full-width at half maximum of 200 ?eV. The detail provided by these measurements allows the characteristic type-II blueshift, observed with increasing excitation power, to be studied at the level of individual nanostructures. These findings are in agreement with hole-charging being the origin of the observed blueshift.

  7. Application of the ASME code in the design of the GA-4 and GA-9 casks

    SciTech Connect (OSTI)

    Mings, W.J. ); Koploy, M.A. )

    1992-01-01

    General Atomics (GA) is developing two spent fuel shipping casks for transport by legal weight truck (LWT). The casks are designed to the loading, environmental conditions and safety requirements defined in Title 10 of the Code of Federal Regulations, Part 71 (10CFR71). To ensure that all components of the cask meet the 10CFR71 rules, GA established structural design criteria for each component based on NRC Regulatory Guides and the American Society of Mechanical Engineers Boiler and Pressure Vessel Code (ASME Code). This paper discusses the criteria used for different cask components, how they were applied and the conservatism and safety margins built into the criteria and assumption.

  8. Application of the ASME code in the design of the GA-4 and GA-9 casks

    SciTech Connect (OSTI)

    Mings, W.J.; Koploy, M.A.

    1992-08-01

    General Atomics (GA) is developing two spent fuel shipping casks for transport by legal weight truck (LWT). The casks are designed to the loading, environmental conditions and safety requirements defined in Title 10 of the Code of Federal Regulations, Part 71 (10CFR71). To ensure that all components of the cask meet the 10CFR71 rules, GA established structural design criteria for each component based on NRC Regulatory Guides and the American Society of Mechanical Engineers Boiler and Pressure Vessel Code (ASME Code). This paper discusses the criteria used for different cask components, how they were applied and the conservatism and safety margins built into the criteria and assumption.

  9. Origins of ion irradiation-induced Ga nanoparticle motion on GaAs surfaces

    SciTech Connect (OSTI)

    Kang, M.; Wu, J. H.; Chen, H. Y.; Thornton, K.; Goldman, R. S. [Department of Materials Science and Engineering, University of Michigan, Ann Arbor, Michigan 48109-2136 (United States)] [Department of Materials Science and Engineering, University of Michigan, Ann Arbor, Michigan 48109-2136 (United States); Sofferman, D. L. [Department of Materials Science and Engineering, University of Michigan, Ann Arbor, Michigan 48109-2136 (United States) [Department of Materials Science and Engineering, University of Michigan, Ann Arbor, Michigan 48109-2136 (United States); Department of Physics, Adelphi University, Garden City, New York 11530-0701 (United States); Beskin, I. [Department of Physics, University of Michigan, Ann Arbor, Michigan 48109-1040 (United States)] [Department of Physics, University of Michigan, Ann Arbor, Michigan 48109-1040 (United States)

    2013-08-12

    We have examined the origins of ion irradiation-induced nanoparticle (NP) motion. Focused-ion-beam irradiation of GaAs surfaces induces random walks of Ga NPs, which are biased in the direction opposite to that of ion beam scanning. Although the instantaneous NP velocities are constant, the NP drift velocities are dependent on the off-normal irradiation angle, likely due to a difference in surface non-stoichiometry induced by the irradiation angle dependence of the sputtering yield. It is hypothesized that the random walks are initiated by ion irradiation-induced thermal fluctuations, with biasing driven by anisotropic mass transport.

  10. Inverse spin Hall effect in Pt/(Ga,Mn)As

    SciTech Connect (OSTI)

    Nakayama, H.; Chen, L.; Chang, H. W.; Ohno, H.; Matsukura, F.

    2015-06-01

    We investigate dc voltages under ferromagnetic resonance in a Pt/(Ga,Mn)As bilayer structure. A part of the observed dc voltage is shown to originate from the inverse spin Hall effect. The sign of the inverse spin Hall voltage is the same as that in Py/Pt bilayer structure, even though the stacking order of ferromagnetic and nonmagnetic layers is opposite to each other. The spin mixing conductance at the Pt/(Ga,Mn)As interface is determined to be of the order of 10{sup 19 }m{sup −2}, which is about ten times greater than that of (Ga,Mn)As/p-GaAs.

  11. fe0013961-GaTech | netl.doe.gov

    U.S. Department of Energy (DOE) all webpages (Extended Search)

    Performer Georgia Tech Research Corporation, Atlanta GA 30332 Background While earlier research focused on the properties of the hydrate mass per se (Sloan Jr and Koh 2007), ...

  12. Bismuth alloying properties in GaAs nanowires

    SciTech Connect (OSTI)

    Ding, Lu; Lu, Pengfei; Cao, Huawei; Cai, Ningning; Yu, Zhongyuan; Gao, Tao; Wang, Shumin

    2013-09-15

    First-principles calculations have been performed to investigate the structural, electronic and optical properties of bismuth alloying in GaAs nanowires. A typical model of Ga{sub 31}As{sub 31} nanowires is introduced for its reasonable band gap. The band gap of GaAs{sub 1−x}Bi{sub x} shrinks clearly with the increasing Bi concentration and the band edge shifts when spin–orbit coupling (SOC) is considered. The insertion of Bi atom leads to hybridization of Ga/As/Bi p states which contributes a lot around Fermi level. Scissor effect is involved. The optical properties are presented, including dielectric function, optical absorption spectra and reflectivity, which are also varied with the increasing of Bi concentrations. - Graphical abstract: Top view of Bi-doped GaAs nanowires. Ga, As, and Bi atoms are denoted with grey, purple and red balls, respectively. Display Omitted - Highlights: • A typical model of Ga{sub 31}As{sub 31} nanowires is introduced for its reasonable band gap. • The band gap of GaAs{sub 1−x}Bi{sub x} shrinks clearly with the increasing Bi concentration. • The band edge shifts when spin–orbit coupling (SOC) is considered. • The insertion of Bi atom leads to hybridization of Ga/As/Bi p states.

  13. Photoluminescence from GaAs nanodisks fabricated by using combination...

    Office of Scientific and Technical Information (OSTI)

    GaAs nanodisks fabricated by using combination of neutral beam etching and atomic hydrogen-assisted molecular beam epitaxy regrowth Citation Details In-Document Search Title:...

  14. Environmental Cleanup of the East Tennessee Technology Park Year One - Execution with Certainty SM - 13120

    SciTech Connect (OSTI)

    Schubert, A.L.

    2013-07-01

    On August 1, 2011, URS - CH2M Oak Ridge LLC (UCOR) began its five-year, $1.4 billion cleanup of the East Tennessee Technology Park (ETTP), located on the U.S. Department of Energy's (DOE) Oak Ridge Reservation in Tennessee. UCOR will close out cleanup operations that began in 1998 under a previous contract. When the Contract Base scope of work [1] is completed in 2016, the K-25 gaseous diffusion building will have been demolished and all waste dispositioned, demolition will have started on the K-27 gaseous diffusion building, all contact-handled and remote-handled transuranic waste in inventory (approximately 500 cubic meters) will have been transferred to the Transuranic Waste Processing Center, previously designated 'No-Path-To-Disposition Waste' will have been dispositioned to the extent possible, and UCOR will have managed DOE Office of Environmental Management (EM)- owned facilities at ETTP, Oak Ridge National Laboratory (ORNL), and the Y-12 National Security Complex in a safe and cost-effective manner. Since assuming its responsibilities as the ETTP cleanup contractor, UCOR has completed its life-cycle Performance Measurement Baseline; received its Earned Value Management System (EVMS) certification; advanced the deactivation and demolition (D and D) of the K-25 gaseous diffusion building; recovered and completed the Tank W-1A and K-1070-B Burial Ground remediation projects; characterized, packaged, and shipped contact-handled transuranic waste to the Transuranic Waste Processing Center; disposed of more than 90,000 cubic yards of cleanup waste while managing the Environmental Management Waste Management Facility (EMWMF); and provided operations, surveillance, and maintenance activities at DOE EM facilities at ETTP, ORNL, and the Y-12 National Security Complex. Project performance as of December 31, 2012 has been excellent: - Cost Performance Index - 1.06; - Schedule Performance Index - 1.02. At the same time, since safety is the foundation of all cleanup

  15. Au impact on GaAs epitaxial growth on GaAs (111){sub B} substrates in molecular beam epitaxy

    SciTech Connect (OSTI)

    Liao, Zhi-Ming; Chen, Zhi-Gang; Xu, Hong-Yi; Guo, Ya-Nan; Sun, Wen; Zhang, Zhi; Yang, Lei; Lu, Zhen-Yu; Chen, Ping-Ping; Lu, Wei; Zou, Jin; Centre for Microscopy and Microanalysis, The University of Queensland, St. Lucia, Queensland 4072

    2013-02-11

    GaAs growth behaviour under the presence of Au nanoparticles on GaAs {l_brace}111{r_brace}{sub B} substrate is investigated using electron microscopy. It has been found that, during annealing, enhanced Ga surface diffusion towards Au nanoparticles leads to the GaAs epitaxial growth into {l_brace}113{r_brace}{sub B} faceted triangular pyramids under Au nanoparticles, governed by the thermodynamic growth, while during conventional GaAs growth, growth kinetics dominates, resulting in the flatted triangular pyramids at high temperature and the epitaxial nanowires growth at relatively low temperature. This study provides an insight of Au nanoparticle impact on GaAs growth, which is critical for understanding the formation mechanisms of semiconductor nanowires.

  16. Deep level defects in n-type GaAsBi and GaAs grown at low temperatures

    SciTech Connect (OSTI)

    Mooney, P. M.; Watkins, K. P.; Jiang, Zenan; Basile, A. F.; Lewis, R. B.; Bahrami-Yekta, V.; Masnadi-Shirazi, M.; Beaton, D. A.; Tiedje, T.

    2013-04-07

    Deep level defects in n-type GaAs{sub 1-x}Bi{sub x} having 0 < x < 0.012 and GaAs grown by molecular beam epitaxy (MBE) at substrate temperatures between 300 and 400 Degree-Sign C have been investigated by Deep Level Capacitance Spectroscopy. Incorporating Bi suppresses the formation of an electron trap with activation energy 0.40 eV, thus reducing the total trap concentration in dilute GaAsBi layers by more than a factor of 20 compared to GaAs grown under the same conditions. We find that the dominant traps in dilute GaAsBi layers are defect complexes involving As{sub Ga}, as expected for MBE growth at these temperatures.

  17. Deep level centers and their role in photoconductivity transients of InGaAs/GaAs quantum dot chains

    SciTech Connect (OSTI)

    Kondratenko, S. V. Vakulenko, O. V.; Mazur, Yu. I. Dorogan, V. G.; Marega, E.; Benamara, M.; Ware, M. E.; Salamo, G. J.

    2014-11-21

    The in-plane photoconductivity and photoluminescence are investigated in quantum dot-chain InGaAs/GaAs heterostructures. Different photoconductivity transients resulting from spectrally selecting photoexcitation of InGaAs QDs, GaAs spacers, or EL2 centers were observed. Persistent photoconductivity was observed at 80?K after excitation of electron-hole pairs due to interband transitions in both the InGaAs QDs and the GaAs matrix. Giant optically induced quenching of in-plane conductivity driven by recharging of EL2 centers is observed in the spectral range from 0.83?eV to 1.0?eV. Conductivity loss under photoexcitation is discussed in terms of carrier localization by analogy with carrier distribution in disordered media.

  18. Final Report for EPSCoR Implementation Award DE-FG02-08ER46528 to University of Tennessee

    SciTech Connect (OSTI)

    Egami, Takeshi

    2015-12-15

    With the completion of the Spallation Neutron Source (SNS) and upgrading of the High-Flux Isotope Reactor (HFIR) at the Oak Ridge National Laboratory (ORNL) the state of Tennessee now leads the world in the capability of neutron scattering research. This project aimed at directing the great impact of these facilities to researchers in the EPSCoR states, Tennessee in particular, by creating a research collaboration network around these facilities. The plan consisted of two parts: (1) Direct effort to increase the user base through the travel fellowship for graduate students and faculty from the EPSCoR states to use the neutron facilities at the ORNL, and through workshops and schools on the application of neutron scattering, and (2) Research collaboration among the core participants from UTK, ORNL and other states. The EPSCoR Travel Fellowship Program has supported over 300 distinct and 600 cumulative neutron facility users and over 250 workshop participants, with the total of nearly 600 distinct recipients. This program has been highly popular particularly among young faculty members who often have difficulty in raising travel funds, and enabled participation of young graduate students to neutron research. This program has been the foundation of this project. We supported several educational workshops, organized one (“neutrons for novice”) by ourselves each year, targeting non-users of neutron scattering. These efforts significantly contributed to expand the neutron user base among the EPSCoR states. The core research targeted condensed matter physics and soft matter sciences. The core research groups participating in this project include not only researchers from Tennessee but those from Kansas, South Carolina, Puerto Rico and Louisiana, making this project a national, rather than regional, enterprise. Collaborations that were seeded by this project have grown into two major projects, one in materials science (irradiation effects on high-entropy alloys) and

  19. Bear Creek Valley Floodplain Hot Spot Removal Action Project Plan, Oak Ridge Y-12 Plant, Oak Ridge, Tennessee

    SciTech Connect (OSTI)

    NONE

    1998-01-01

    The Bear Creek Valley Floodplain Hot Spot Removal Action Project Plan, Oak Ridge Y-12 Plant, Oak Ridge, Tennessee (Y/ER-301) was prepared (1) to safely, cost-effectively, and efficiently evaluate the environmental impact of solid material in the two debris areas in the context of industrial land uses (as defined in the Bear Creek Valley Feasibility Study) to support the Engineering Evaluation/Cost Assessment and (2) to evaluate, define, and implement the actions to mitigate these impacts. This work was performed under Work Breakdown Structure 1.x.01.20.01.08.

  20. 1,"Browns Ferry","Nuclear","Tennessee Valley Authority",3309.4

    U.S. Energy Information Administration (EIA) (indexed site)

    Alabama" ,"Plant","Primary energy source","Operating company","Net summer capacity (MW)" 1,"Browns Ferry","Nuclear","Tennessee Valley Authority",3309.4 2,"James H Miller Jr","Coal","Alabama Power Co",2725.9 3,"Barry","Coal","Alabama Power Co",2574.5 4,"E C Gaston","Coal","Alabama Power Co",1878 5,"H Allen Franklin Combined

  1. EIS-0305: Treating Transuranic (TRU)/Alpha Low-Level at the Oak Ridge National Laboratory, Oak Ridge, Tennessee

    Energy.gov [DOE]

    This EIS evaluates DOE's proposal to construct, operate, and decontaminate/decommission a Transuranic (TRU) Waste Treatment Facility in Oak Ridge, Tennessee. The four waste types that would be treated at the proposed facility would be remote-handled TRU mixed waste sludge, liquid low-level waste associated with the sludge, contact-handled TRU/alpha low-level waste solids, and remote-handled TRU/alpha low-level waste solids. The mixed waste sludge and some of the solid waste contain metals regulated under the Resource Conservation and Recovery Act and may be classified as mixed waste.

  2. Reactive codoping of GaAlInP compound semiconductors (Patent...

    Office of Scientific and Technical Information (OSTI)

    Patent: Reactive codoping of GaAlInP compound semiconductors Citation Details In-Document Search Title: Reactive codoping of GaAlInP compound semiconductors A GaAlInP compound ...

  3. Growth and Band Offsets of Epitaxial Lanthanide Oxides on GaN...

    Office of Scientific and Technical Information (OSTI)

    M.T.T., 60 (6) (2012) 3 Jon Ihlefeld, Sandia National Laboratories Electronic Materials ... Undoped GaN Undoped AlGaN Doped AlGaN 2D Electron Gas Enhancement Mode (nominally ...

  4. Closure certification report for the Bear Creek burial grounds B area and walk-in pits at the Oak Ridge Y-12 Plant, Oak Ridge, Tennessee

    SciTech Connect (OSTI)

    Not Available

    1994-06-01

    On July 5, 1993, the revised RCRA Closure Plan for the Bear Creek Burial Grounds B Area and Walk-In Pits at the Oak Ridge Y-12 Plant, Oak Ridge, Tennessee, DOE/OR/01-1100&D3 and Y/ER-53&D3, was approved by the Tennessee Department of Environment and Conservation (TDEC). The closure activities described in that closure plan have been performed. The purpose of this document is to summarize the closure activities for B Area and Walk-In Pits (WIPs), including placement of the Kerr Hollow Quarry debris at the WIPs.

  5. Cooling season performance of an earth-sheltered office/dormitory building in Oak Ridge, Tennessee

    SciTech Connect (OSTI)

    Christian, J.E.

    1984-07-01

    Detailed hourly measurements taken in and around an underground office-dormitory building for two summers document energy savings; whole building-component interface problems; and specific cooling contributions from earth contact, interior thermal mass, and an economizer. The Joint Institute Dormitory (JID) saves about 30% compared with well-built above-grade buildings in a climate typical of Oak Ridge, Tennessee, and has the potential to save as much as 50%. The detailed measurements, which include extensive thermal comfort data, indicate that at least 90% of the occupants are comfortable all of the time. The thermal performance measurements and analysis determine that the peak cooling requirement of this building is 50% less than that of well-built above-grade structures, permitting a cost savings on installed cooling capacity. The dominant building components contributing to the good thermal performance are the structural thermal mass, the earth-covered roof, and the earth contact provided by the bermed walls and slab floor. The 372-m/sup 2/ (4000 gross ft/sup 2/) building used about $300 (at 5.7 cents/kWh) to cool and ventilate from May through September. Eliminating a number of building design and construction anomalies could improve the whole-building performance and reduce the seasonal cooling cost another $85. Close examination of the thermal performance of this building revealed that a very efficient heat pump and thermally sound envelope do not necessarily produce otpimum performance without careful attention given to component interface details. 8 references, 24 figures, 12 tables.

  6. Mineralogical characterization of saprolite at the FRC background site in Oak Ridge, Tennessee

    SciTech Connect (OSTI)

    Kim, Young-Jin; Moon, Ji Won; Roh, Yul; Brooks, Scott C

    2008-12-01

    The Field Research Center (FRC) including five contaminated sites and a clean background area was established in Oak Ridge, Tennessee, as a part of the U.S. Department of Energy's Natural and Accelerated Bioremediation Research (NABIR) program. This study investigates the mineralogy and mineralogical pathways of saprolite at the FRC background site to provide a fundamental basis for the remediation strategy for contaminated sites. The background site is underlain interbedded shales, siltstones, and limestones with nearly identical characteristics to the contaminated sites. Bulk samples of saprolite were collected by hand picking approximately at 1 m depth (C horizon) from the soil surface. The soil pH of 4.3 and cation exchange capacity (CEC) of 10.5 cmol/kg measured are in the range of the typical shallow depth saprolite layer in this area. Total Fe by citrate-bicarbonate-dithionate (CBD) and ammonium oxalate extractable (amorphous) were 17.6 and 0.61 g/kg, respectively. Total Mn extracted by NH{sub 2}OH{center_dot}HCl was 0.17 g/kg. X-ray diffraction (XRD) and scanning electron microscopy (SEM) analyses indicate that quartz, illite, and microcline (K-feldspar) are the dominant minerals, occupying 95% of mineral composition. The saprolite samples analyzed have shown characteristics of oxic conditions overall, and the degrees of weathering for three sampling locations were various, most for S1 and least for S3, likely influenced either by the flow channels developed through saprolite or by seasonal fluctuation of the groundwater table. The source of the manganese oxide that observed from the site is likely to be Mn-rich muscovite in the shale or Mn-rich biotite in the blackish band in the limestone. The results such as abundant Mn and Fe contents identified encouraging prospects for conducting remediation projects in FRC sites.

  7. Survey of protected vascular plants on the Oak Ridge Reservation, Oak Ridge, Tennessee

    SciTech Connect (OSTI)

    Awl, D.J.; Pounds, L.R.; Rosensteel, B.A.; King, A.L.; Hamlett, P.A.

    1996-06-01

    Vascular plant surveys were initiated during fiscal year 1992 by the environmentally sensitive areas program to determine the baseline condition of threatened and endangered (T&E) vascular plant species on the Oak Ridge Reservation (ORR). T&E species receive protection under federal and state regulations. In addition, the National Environmental Policy Act (NEPA) requires that federally-funded projects avoid or mitigate impacts to listed species. T&E plant species found on or near the U.S. Department of Energy`s (DOE) Oak Ridge Reservation (ORR) are identified. Twenty-eight species identified on the ORR are listed by the Tennessee Department of Environment and Conservation as either endangered, threatened, or of special concern. Four of these have been under review by the U.S. Fish and Wildlife Service for possible listing (listed in the formerly-used C2 candidate category). Additional species listed by the state occur near and may be present on the ORR. A range of habitats support the rare taxa on the ORR: river bluffs, sinkholes, calcareous barrens, wetlands, utility corridors, and forests. The list of T&E plant species and their locations on the ORR should be considered provisional because the entire ORR has not been surveyed, and state and federal status of all species continues to be updated. The purpose of this document is to present information on the listed T&E plant species currently known to occur on the ORR as well as listed species potentially occurring on the ORR based on geographic range and habitat availability. For the purpose of this report, {open_quotes}T&E species{close_quotes} include all federal- and state-listed species, including candidates for listing, and species of special concern. Consideration of T&E plant habitats is an important component of resource management and land-use planning; protection of rare species in their natural habitat is the best method of ensuring their long-term survival.

  8. Long-wavelength shift and enhanced room temperature photoluminescence efficiency in GaAsSb/InGaAs/GaAs-based heterostructures emitting in the spectral range of 1.01.2??m due to increased charge carrier's localization

    SciTech Connect (OSTI)

    Kryzhkov, D. I. Yablonsky, A. N.; Morozov, S. V.; Aleshkin, V. Ya.; Krasilnik, Z. F.; Zvonkov, B. N.; Vikhrova, O. V.

    2014-11-28

    In this work, a study of the photoluminescence (PL) temperature dependence in quantum well GaAs/GaAsSb and double quantum well InGaAs/GaAsSb/GaAs heterostructures grown by metalorganic chemical vapor deposition with different parameters of GaAsSb and InGaAs layers has been performed. It has been demonstrated that in double quantum well InGaAs/GaAsSb/GaAs heterostructures, a significant shift of the PL peak to a longer-wavelength region (up to 1.2??m) and a considerable reduction in the PL thermal quenching in comparison with GaAs/GaAsSb structures can be obtained due to better localization of charge carriers in the double quantum well. For InGaAs/GaAsSb/GaAs heterostructures, an additional channel of radiative recombination with participation of the excited energy states in the quantum well, competing with the main ground-state radiative transition, has been revealed.

  9. An inverted AlGaAs/GaAs patterned-Ge tunnel junction cascade concentrator solar cell

    SciTech Connect (OSTI)

    Venkatasubramanian, R. )

    1993-01-01

    This report describes work to develop inverted-grown Al[sub 0.34]Ga[sub 0.66]As/GaAs cascades. Several significant developments are reported on as follows: (1) The AM1.5 1-sun total-area efficiency of the top Al[sub 0.34]Ga[sub 0.66]As cell for the cascade was improved from 11.3% to 13.2% (NREL measurement [total-area]). (2) The cycled'' organometallic vapor phase epitaxy growth (OMVPE) was studied in detail utilizing a combination of characterization techniques including Hall-data, photoluminescence, and secondary ion mass spectroscopy. (3) A technique called eutectic-metal-bonding (EMB) was developed by strain-free mounting of thin GaAs-AlGaAs films (based on lattice-matched growth on Ge substrates and selective plasma etching of Ge substrates) onto Si carrier substrates. Minority-carrier lifetime in an EMB GaAs double-heterostructure was measured as high as 103 nsec, the highest lifetime report for a freestanding GaAs thin film. (4) A thin-film, inverted-grown GaAs cell with a 1-sun AM1.5 active-area efficiency of 20.3% was obtained. This cell was eutectic-metal-bonded onto Si. (5) A thin-film inverted-grown, Al[sub 0.34]Ga[sub 0.66]As/GaAs cascade with AM1.5 efficiency of 19.9% and 21% at 1-sun and 7-suns, respectively, was obtained. This represents an important milestone in the development of an AlGaAs/GaAs cascade by OMVPE utilizing a tunnel interconnect and demonstrates a proof-of-concept for the inverted-growth approach.

  10. DC characteristics of OMVPE-grown N-p-n InGaP/InGaAsN DHBTs

    SciTech Connect (OSTI)

    Li, N.Y.; Chang, P.C.; Baca, A.G.; Xie, X.M.; Sharps, P.R.; Hou, H.Q.

    2000-01-04

    The authors demonstrate, for the first time, a functional N-p-n heterojunction bipolar transistor using a novel material, InGaAsN, with a bandgap energy of 1.2eV as the p-type base layer. A 300{angstrom}-thick In{sub x}Ga{sub 1-x}As graded layer was introduced to reduce the conduction band offset at the p-type InGaAsN base and n-type GaAs collector junction. For an emitter size of 500 {mu}m{sup 2}, a peak current gain of 5.3 has been achieved.

  11. Interfacial bonding and electronic structure of GaN/GaAs interface: A first-principles study

    SciTech Connect (OSTI)

    Cao, Ruyue; Zhang, Zhaofu; Wang, Changhong; Li, Haobo; Dong, Hong; Liu, Hui; Wang, Weichao; Xie, Xinjian

    2015-04-07

    Understanding of GaN interfacing with GaAs is crucial for GaN to be an effective interfacial layer between high-k oxides and III-V materials with the application in high-mobility metal-oxide-semiconductor field effect transistor (MOSFET) devices. Utilizing first principles calculations, here, we investigate the structural and electronic properties of the GaN/GaAs interface with respect to the interfacial nitrogen contents. The decrease of interfacial N contents leads to more Ga dangling bonds and As-As dimers. At the N-rich limit, the interface with N concentration of 87.5% shows the most stability. Furthermore, a strong band offsets dependence on the interfacial N concentration is also observed. The valance band offset of N7 with hybrid functional calculation is 0.51 eV. The electronic structure analysis shows that significant interface states exist in all the GaN/GaAs models with various N contents, which originate from the interfacial dangling bonds and some unsaturated Ga and N atoms. These large amounts of gap states result in Fermi level pinning and essentially degrade the device performance.

  12. Self-catalyzed growth of dilute nitride GaAs/GaAsSbN/GaAs core-shell nanowires by molecular beam epitaxy

    SciTech Connect (OSTI)

    Kasanaboina, Pavan Kumar; Ahmad, Estiak; Li, Jia; Iyer, Shanthi; Reynolds, C. Lewis; Liu, Yang

    2015-09-07

    Bandgap tuning up to 1.3 μm in GaAsSb based nanowires by incorporation of dilute amount of N is reported. Highly vertical GaAs/GaAsSbN/GaAs core-shell configured nanowires were grown for different N contents on Si (111) substrates using plasma assisted molecular beam epitaxy. X-ray diffraction analysis revealed close lattice matching of GaAsSbN with GaAs. Micro-photoluminescence (μ-PL) revealed red shift as well as broadening of the spectra attesting to N incorporation in the nanowires. Replication of the 4K PL spectra for several different single nanowires compared to the corresponding nanowire array suggests good compositional homogeneity amongst the nanowires. A large red shift of the Raman spectrum and associated symmetric line shape in these nanowires have been attributed to phonon localization at point defects. Transmission electron microscopy reveals the dominance of stacking faults and twins in these nanowires. The lower strain present in these dilute nitride nanowires, as opposed to GaAsSb nanowires having the same PL emission wavelength, and the observation of room temperature PL demonstrate the advantage of the dilute nitride system offers in the nanowire configuration, providing a pathway for realizing nanoscale optoelectronic devices in the telecommunication wavelength region.

  13. Localized corrosion of GaAs surfaces and formation of porous GaAs

    SciTech Connect (OSTI)

    Schmuki, P.; Vitus, C.M.; Isaacs, H.S.; Fraser, J.; Graham, M.J.

    1995-12-01

    The present work deals with pitting corrosion of p- and n-type GaAs (100). Pit growth can be electrochemically initiated on both conduction types in chloride-containing solutions and leads after extended periods of time to the formation of a porous GaAs structure. In the case of p-type material, localized corrosion is only observed if a passivating film is present on the surface, otherwise -- e.g. in acidic solutions -- the material suffers from a uniform attack (electropolishing) which is independent of the anion present. In contrast, pitting corrosion of n-type material can be triggered independent of the presence of an oxide film. This is explained in terms of the different current limiting factor for the differently doped materials (oxide film in the case of the p- and a space charge layer in the case of the n-GaAs). The porous structure was characterized by SEM, EDX and AES, and consists mainly of GaAs. From scratch experiments it is clear that the pit initiation process is strongly influenced by surface defects. For n-type material, AFM investigations show that light induced roughening of the order of several hundred nm occurs under non-passivating conditions. This nm- scale roughening however does not affect the pitting process.

  14. AlGaAs/InGaAlP tunnel junctions for multijunction solar cells

    SciTech Connect (OSTI)

    SHARPS,P.R.; LI,N.Y.; HILLS,J.S.; HOU,H.; CHANG,PING-CHIH; BACA,ALBERT G.

    2000-05-16

    Optimization of GaInP{sub 2}/GaAs dual and GaInP{sub 2}/GaAs/Ge triple junction cells, and development of future generation monolithic multi-junction cells will involve the development of suitable high bandgap tunnel junctions. There are three criteria that a tunnel junction must meet. First, the resistance of the junction must be kept low enough so that the series resistance of the overall device is not increased. For AMO, 1 sun operation, the tunnel junction resistance should be below 5 x 10{sup {minus}2} {Omega}-cm. Secondly, the peak current density for the tunnel junction must also be larger than the J{sub sc} of the cell so that the tunnel junction I-V curve does not have a deleterious effect on the I-V curve of the multi-junction device. Finally, the tunnel junction must be optically transparent, i.e., there must be a minimum of optical absorption of photons that will be collected by the underlying subcells. The paper reports the investigation of four high bandgap tunnel junctions grown by metal-organic chemical vapor deposition.

  15. High-Efficiency GaInP/GaAs Tandem Solar Cells

    SciTech Connect (OSTI)

    Bertness, K. A.; Friedman, D. J.; Kurtz, S. R.; Kibbler, A. E.; Cramer, C.; Olson, J. M.

    1996-09-01

    GaInP/GaAs tandem solar cells have achieved efficiencies between 25.7-30.2%, depending on illumination conditions. The efficiencies are the highest confirmed two-terminal values measured for any solar cell within each standard illumination category. The monolithic, series-connected design of the tandem cells allows them to be substituted for silicon or gallium arsenide cells in photovoltaic panel systems with minimal design changes. The advantages of using GaInP/GaAs tandem solar cells in space and terrestrial applications are discussed primarily in terms of the reduction in balance-of-system costs that accrues when using a higher efficiency cell. The new efficiency values represent a significant improvement over previous efficiencies for this materials system, and we identify grid design, back interface passivation, and top interface passivation as the three key factors leading to this improvement. In producing the high-efficiency cells, we have addressed nondestructive diagnostics and materials growth reproducibility as well as peak cell performance.

  16. High-efficiency GaInP/GaAs tandem solar cells

    SciTech Connect (OSTI)

    Bertness, K.A.; Friedman, D.J.; Kurtz, S.R.; Kibbler, A.E.; Kramer, C.; Olson, J.M.

    1994-12-01

    GaInP/GaAs tandem solar cells have achieved new record efficiencies, specifically 25.7% under air-mass 0 (AM0) illumination, 29.5% under AM 1.5 global (AM1.5G) illumination, and 30.2% at 140-180x concentration under AM 1.5 direct (AM1.5D) illumination. These values are the highest two-terminal efficiencies achieved by any solar cell under these illumination conditions. The monolithic, series-connected design of the tandem cells allows them to be substituted for silicon or gallium arsenide cells in photovoltaic panel systems with minimal design changes. The advantages of using GaInP/GaAs tandem solar cells in space and terrestrial applications are discussed primarily in terms of the reduction in balance-of-system costs that accrues when using a higher efficiency cell. The new efficiency values represent a significant improvement over previous efficiencies for this materials system, and we identify grid design, back interface passivation, and top interface passivation as the three key factors leading to this improvement. In producing the high-efficiency cells, we have addressed nondestructive diagnostics and materials growth reproducibility as well as peak cell performance. 31 refs.

  17. TJ Solar Cell (GaInP/GaAs/Ge Ultrahigh-Efficiency Solar Cells

    SciTech Connect (OSTI)

    Friedman, Daniel

    2002-04-17

    This talk will discuss recent developments in III-V multijunction photovoltaic technology which have led to the highest-efficiency solar cells ever demonstrated. The relationship between the materials science of III-V semiconductors and the achievement of record solar cell efficiencies will be emphasized. For instance, epitaxially-grown GAInP has been found to form a spontaneously-ordered GaP/InP (111) superlattice. This ordering affects the band gap of the material, which in turn affects the design of solar cells which incorporate GaInP. For the next generation of ultrahigh-efficiency III-V solar cells, we need a new semiconductor which is lattice-matched to GaAs, has a band gap of 1 eV, and has long minority-carrier diffusion lengths. Out of a number of candidate materials, the recently-discovered alloy GaInNAs appears to have the greatest promise. This material satisfies the first two criteria, but has to date shown very low diffusion lengths, a problem which is our current focus in the development of these next-generation cells.

  18. Multijunction GaInP/GaInAs/Ge solar cells with Bragg reflectors

    SciTech Connect (OSTI)

    Emelyanov, V. M. Kalyuzhniy, N. A.; Mintairov, S. A.; Shvarts, M. Z.; Lantratov, V. M.

    2010-12-15

    Effect of subcell parameters on the efficiency of GaInP/Ga(In)As/Ge tandem solar cells irradiated with 1-MeV electrons at fluences of up to 3 x 10{sup 15} cm{sup -2} has been theoretically studied. The optimal thicknesses of GaInP and GaInAs subcells, which provide the best photocurrent matching at various irradiation doses in solar cells with and without built-in Bragg reflectors, were determined. The dependences of the photoconverter efficiency on the fluence of 1-MeV electrons and on the time of residence in the geostationary orbit were calculated for structures optimized to the beginning and end of their service lives. It is shown that the optimization of the subcell heterostructures for a rated irradiation dose and the introduction of Bragg reflectors into the structure provide a 5% overall increase in efficiency for solar cells operating in the orbit compared with unoptimized cells having no Bragg reflector.

  19. Mercury and other heavy metals influence bacterial community structure in contaminated Tennessee streams

    SciTech Connect (OSTI)

    Vishnivetskaya, Tatiana A; Mosher, Jennifer J; Palumbo, Anthony Vito; Yang, Zamin; Podar, Mircea; Brown, Steven D; Brooks, Scott C; Gu, Baohua; Southworth, George R; Drake, Meghan M; Brandt, Craig C; Elias, Dwayne A

    2011-01-01

    High concentrations of uranium, inorganic mercury [Hg(II)], and methylmercury (MeHg) have been detected in streams located in the Department of Energy reservation in Oak Ridge, TN. To determine the potential effects of the surface water contamination on the microbial community composition, surface stream sediments were collected 7 times during the year, from 5 contaminated locations and 1 control stream. Fifty-nine samples were analyzed for bacterial community composition and geochemistry. Community characterization was based on GS 454 FLX pyrosequencing with 235 Mb of 16S rRNA gene sequence targeting the V4 region. Sorting and filtering of the raw reads resulted in 588,699 high-quality sequences with lengths of >200 bp. The bacterial community consisted of 23 phyla, including Proteobacteria (ranging from 22.9 to 58.5% per sample), Cyanobacteria (0.2 to 32.0%), Acidobacteria (1.6 to 30.6%), Verrucomicrobia (3.4 to 31.0%), and unclassified bacteria. Redundancy analysis indicated no significant differences in the bacterial community structure between midchannel and near-bank samples. Significant correlations were found between the bacterial community and seasonal as well as geochemical factors. Furthermore, several community members within the Proteobacteria group that includes sulfate-reducing bacteria and within the Verrucomicrobia group appeared to be associated positively with Hg and MeHg. This study is the first to indicate an influence of MeHg on the in situ microbial community and suggests possible roles of these bacteria in the Hg/MeHg cycle.

  20. Physicochemical and mineralogical characterization of soil/saprolite cores from a field research site, Tennessee

    SciTech Connect (OSTI)

    Moon, Ji Won; Phelps, Tommy Joe; Phillips, Debra H; Watson, David B; Kim, Young Jin; Brooks, Scott C

    2006-08-01

    Site characterization is an essential initial step in determining the feasibility of remedial alternatives at hazardous waste sites. Physico-chemical and mineralogical characterization of U-contaminated soils in deeply weathered saprolite at Area 2 of the DOE Field Research Center (FRC) site, Oak Ridge, TN, was accomplished to examine the feasibility of bioremediation. Concentrations of U in soil-saprolite (up to 291 mg kg^-1 in oxalate-extractable Uo) were closely related to low pH (ca. 4-5), high effective cation exchange capacity without Ca (64.7-83.2 cmolc kg_1), amorphous Mn content (up to 9910 mg kg_1), and the decreased presence of relative clay mineral contents in the bulk samples (i.e., illite 2.5-12 wt. %, average 32 wt. %). The pH of the fill material ranged from 7.0 to 10.5, whereas the pH of the saprolite ranged from 4.5 to 8. Uranium concentration was highest (about 300 mg kg^-1) at around 6 m below land surface near the saprolite-fill interface. The pH of ground water at Area 2 tended to be between 6 and 7 with U concentrations of about 0.9 to 1.7 mg L^-1. These site specific characteristics of Area 2, which has lower U and nitrate con-tamination levels and more neutral ground water pH compared with FRC Areas 1 and 3 (ca. 5.5 and _4, respectively), indicate that with appropriate addition of electron donors and nutrients bioremediation of U by metal reducing microorganisms may be possible.