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  1. Category:Tampa, FL | Open Energy Information

    Open Energy Info (EERE)

    are in this category, out of 16 total. SVFullServiceRestaurant Tampa FL Florida Power & Light Co..png SVFullServiceRestauran... 77 KB SVHospital Tampa FL Florida Power & Light...

  2. DOE - Office of Legacy Management -- Gardinier Inc - FL 05

    Office of Legacy Management (LM)

    Gardinier Inc - FL 05 FUSRAP Considered Sites Site: GARDINIER, INC. ( FL.05 ) Eliminated from consideration under FUSRAP - Referred to EPA and State of Florida Designated Name: Not Designated Alternate Name: U. S. Phosphoric Products FL.05-1 Location: Tampa , Florida FL.05-2 Evaluation Year: 1984 FL.05-3 Site Operations: U. S. Phosphoric Products constructed and operated a small scale pilot plant for uranium recovery; and Gardinier investigated a process for the recovery of by-product uranium

  3. Tampa Electric- Residential Energy Efficiency Rebate Program

    Broader source: Energy.gov [DOE]

    Tampa Electric provides a variety of financial incentives to promote energy efficiency in the residential sector. The Ductwork Rebate Program gives Tampa Electric customers the opportunity to have...

  4. Tampa Electric- Solar Rebate Program

    Broader source: Energy.gov [DOE]

    Tampa Electric provides financial incentives to customers who install solar-energy systems on their homes and businesses. Customers who install eligible solar water heating systems may receive a ...

  5. Best Practices Case Study: William Ryan House - Tampa Division, Tampa, FL

    SciTech Connect (OSTI)

    none,

    2011-04-01

    Case study of William Ryan Homes, who cut energy use to achieve HERS scores of 65 to 70 on nine floor plans that will be featured in 277 homes in central Florida.

  6. Tampa, Florida: Energy Resources | Open Energy Information

    Open Energy Info (EERE)

    LLC Institute for Business and Home Safety (IBHS) Invenergy Services LLC Renewable Energy Resources Inc formerly Internal Hydro International Inc Solarsa Sunbiz Solar Tampa Bay...

  7. Tampa, Florida: Energy Resources | Open Energy Information

    Open Energy Info (EERE)

    Hydro International Inc Solarsa Sunbiz Solar Tampa Bay Area Ethanol Consortium US Energy Initiatives Corp formerly Hybrid Fuel Systems Inc UTEK World Environmental Solutions...

  8. Tampa Bay Area Ethanol Consortium | Open Energy Information

    Open Energy Info (EERE)

    Bay Area Ethanol Consortium Jump to: navigation, search Name: Tampa Bay Area Ethanol Consortium Place: Tampa, Florida Sector: Biomass Product: Consortium researching ethanol from...

  9. Status of Tampa Electric Company IGCC Project

    SciTech Connect (OSTI)

    Jenkins, S.D.

    1992-01-01

    Tampa Electric Company will utilize Integrated Gasification Combined Cycle technology for its new Polk Power Station Unit [number sign]1. The project is partially funded under the Department of Energy Clean Coal Technology Program Round III. This paper describes the technology to be used, process details, demonstration of a new hot gas clean-up system, and the schedule, leading to commercial operation in July 1996.

  10. Status of Tampa Electric Company IGCC Project

    SciTech Connect (OSTI)

    Jenkins, S.D.

    1992-10-01

    Tampa Electric Company will utilize Integrated Gasification Combined Cycle technology for its new Polk Power Station Unit {number_sign}1. The project is partially funded under the Department of Energy Clean Coal Technology Program Round III. This paper describes the technology to be used, process details, demonstration of a new hot gas clean-up system, and the schedule, leading to commercial operation in July 1996.

  11. FL J. Smith, Jr.

    Office of Legacy Management (LM)

    ct. B. Duillap (THPJJs L. Kassel) FL J. Smith, Jr. c c Kelley from R. 1. Cook, Kslley from R. 1. Cook, J J cit cit In accordawe with Secret memorandum dated October , 1951 ta IA. ...

  12. Tampa Bay Designated as the Newest Clean Cities Coalition | Department of

    Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

    Energy Tampa Bay Designated as the Newest Clean Cities Coalition Tampa Bay Designated as the Newest Clean Cities Coalition November 21, 2014 - 1:36pm Addthis Dr. Judy Genshaft, the University of South Florida's president, welcomes attendees to the Tampa Bay Clean Cities Ceremony. | Photo courtesy of the Clean Cities Coalition. Dr. Judy Genshaft, the University of South Florida's president, welcomes attendees to the Tampa Bay Clean Cities Ceremony. | Photo courtesy of the Clean Cities

  13. Vision FL LLC | Open Energy Information

    Open Energy Info (EERE)

    FL LLC Jump to: navigation, search Name: VisionFL, LLC Place: Florida Sector: Biomass Product: Florida-based biomass project developer. References: VisionFL, LLC1 This article...

  14. JLab Scientist Discusses Higgs Announcement (Tampa Bay Online) | Jefferson

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    Lab Scientist Discusses Higgs Announcement (Tampa Bay Online) External Link: http://www2.tbo.com/news/opinion/2012/jul/16/naopino1-no-cause-for-envy-in-higgs... By jlab_admin on Mon, 2012-07-16

  15. The ecology of Tampa Bay, Florida: An estuarine profile

    SciTech Connect (OSTI)

    Lewis, R.R. III; Estevez, E.D.

    1988-09-01

    Tampa Bay is Florida's largest open-water estuary and one of the most highly urbanized. This report summarizes and synthesizes many years of scientific investigation into Tampa Bay's geology, hydrology and hydrography, water chemistry, and biotic components. The estuary is a phytoplankton-based system, with mangroves being the second most important primary producer. Benthic organisms are abundant and diverse, although in parts of the bay the benthos consists of a relatively few opportunistic and pollution indicator species. The estuary provides habitat for the juveniles and adults of a number of commercial and recreational fishery species. Significant changes occurring as a result of urbanization and industrialization include significant declines in intertidal wetlands and seagrass meadows, changes in circulation and flushing, and degradation of water quality. Important management issues include dredge and fill operations, restoration of fisheries, increasing freshwater flow to the bay, and eutrophication. 257 refs., 85 figs., 27 tabs.

  16. Design of a basinwide monitoring program for the Tampa Bay estuary. Final technical pub

    SciTech Connect (OSTI)

    Hochberg, R.J.; Weisberg, S.B.; Frithsen, J.B.

    1992-10-30

    The Tampa Bay National Estuary Program (TBNEP) is developing a Comprehensive Conservation and Management Plan (CCMP) to recommend management actions for protecting the Tampa Bay estuary. The purpose of the document is to facilitate development of the monitoring program by assisting the TBNEP to define the objectives of a monitoring program for Tampa Bay identifying indicators and a sampling design that are appropriate to those objectives, and identifying how existing Tampa Bay monitoring programs can be incorporated and modified (if necessary) to meet the monitoring objectives.

  17. Tampa Electric Company, Polk Power Station IGCC Project: Project Status

    SciTech Connect (OSTI)

    Berry, T.E.; Shelnut, C.A.; McDaniel, J.E.

    1999-07-01

    Over the last ten years, Tampa Electric Company (TEC) has taken the Polk Power Station from a concept to a reality. The Tampa Electric Company Polk Power Station is a nominal 250 MW (net) Integrated Gasification Combined Cycle (IGCC) power plant located to the southeast of Tampa, Florida in Polk County, Florida. This project is being partially funded under the Department of Energy Clean Coal Technology Program pursuant to a Round III award. The Polk Power Station achieved first fire of the gasification system on schedule in mid-July, 1996. It was placed in commercial operation on September 30, 1996. Since start-up in July, 1996, significant advances have occurred in the design and operation of the entire IGCC train. This presentation will feature an up-to-the-minute update of actual performance parameters achieved by the Polk Power Station. These parameters include overall capacity, heat rate, and availability. Several different coal feedstocks have been tested and the resulting performance will be compared to that achieved on the base coal. This paper also provides an update of the general operating experiences and shutdown causes of the gasification facility. Finally, the future plans for improving the reliability and efficiency of the Unit will be addressed, as well as plans for future additional alternate fuel test burns.

  18. US SoAtl FL Site Consumption

    U.S. Energy Information Administration (EIA) Indexed Site

    FL Site Consumption kilowatthours 0 500 1,000 1,500 2,000 US SoAtl FL Expenditures dollars ELECTRICITY ONLY ... CONSUMPTION BY END USE More than a quarter (27%) of the ...

  19. Category:Miami, FL | Open Energy Information

    Open Energy Info (EERE)

    are in this category, out of 16 total. SVFullServiceRestaurant Miami FL Florida Power & Light Co..png SVFullServiceRestauran... 77 KB SVHospital Miami FL Florida Power & Light...

  20. US SoAtl FL Site Consumption

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    FL Site Consumption million Btu 0 500 1,000 1,500 2,000 2,500 US SoAtl FL ... 8,000 12,000 16,000 US SoAtl FL Site Consumption kilowatthours 0 500 1,000 1,500 ...

  1. How and why Tampa Electric Company selected IGCC for its next generating capacity addition

    SciTech Connect (OSTI)

    Pless, D.E. )

    1992-01-01

    As the title indicates, the purpose of this paper is to relate how and why Tampa Electric Company decided to select the Integrated Gasification Combined Cycle (IGCC) for their next capacity addition at Polk Power Station, Polk Unit No. 1. For a complete understanding of this process, it is necessary to review the history related to the initial formulation of the IGCC concept as it was proposed to the Department of Energy (DOE) Clean Coal Initiative Round Three. Further, it is important to understand the relationship between Tampa Electric Company and TECO Pay Services Corporation (TPS). TECO Energy, Inc. is an energy related holding company with headquarters in Tampa, Florida. Tampa Electric Company is the principal, wholly-owned subsidiary of TECO Energy, Inc. Tampa Electric Company is an investor-owned electric utility with about 3200 MW of generation capacity of which 97% is coal fired. Tampa Electric Company serves about 2,000 square miles and approximately 470,000 customers, in west central Florida, primarily in and around Hillsborough County and Tampa, Florida. Tampa Electric Company generating units consist of coal fired units ranging in size from a 110 MW coal fired cyclone unit installed in 1957 to a 450 MW pulverized coal unit with wet limestone flue gas desulfurization installed in 1985. In addition, Tampa Electric Company has six (6) No. 6 oil fired steam units totaling approximately 220 MW. Five (5) of these units, located at the Hookers Point Station, were installed in the late 1940's and early 1950's. Tampa Electric also has about 150 MW of No. 2 oil fired start-up and peaking combustion turbines. The company also owns a 1966 vintage 12 MW natural gas fired steam plant (Dinner Lake) and two nO. 6 oil fired diesel units with heat recovery equipment built in 1983 (Phillips Plant).

  2. EIS-0210: Tampa Electric Company-Polk Power Station (Adopted)

    Broader source: Energy.gov [DOE]

    The U.S. Environmental Protection Agency prepared this statement to fulfill its National Environmental Policy Act requirements with respect to the potential issuance of a permit to the Tampa Electric Company under the National Pollutant Discharge Elimination System for the 1,150-MW Polk Power Station, a new pollutant source. The U.S. Department of Energy served as a cooperating agency in the development of this document due to its potential role to provide cost-shared financial assistance for a 260-MW Integrated Gasification Combined Cycle unit at the Power Station under its Clean Coal Technology Demonstration Project, and adopted the document by August 1994.

  3. Tampa Electric Company Polk Power Station IGCC Project -- Project status

    SciTech Connect (OSTI)

    Berry, T.E.

    1998-12-31

    The Tampa Electric Company Polk Power Station is a nominal 25 MW (net) Integrated Gasification Combined Cycle (IGCC) power plant located southeast of Tampa in Polk County, Florida. This project is being partially funded under the Department of Energy`s Clean Coal Technology Program pursuant to a Round III award. The Polk Power Station uses oxygen-blown, entrained-flow coal gasification technology licensed from Texaco Development Corporation in conjunction with a General Electric combined cycle with an advanced combustion turbine. This IGCC configuration demonstrates significant reductions of SO{sub 2} and NOx emissions when compared to existing and future conventional coal-fired power plants. The Polk Power Station achieved ``first fire`` of the gasification system on schedule in mid-July, 1996. It was placed into commercial operation on September 30, 1996. Since that time, significant advances have occurred in the operation of the entire IGCC train. The presentation features an up-to-the-minute update of actual performance parameters achieved by the Polk Power Station. These parameters include overall capacity, heat rate, and availability. Tests of four alternate feedstocks were conducted, and the resulting performance is compared to that achieved on their base coal. This paper also provides an update of the general operating experiences and shutdown causes of the gasification facility throughout 1997. Finally, the future plans for improving the reliability and efficiency of the Unit will be addressed, as well as plans for future additional alternate fuel test burns.

  4. Tampa Electric Company Polk Power Station IGCC project: Project status

    SciTech Connect (OSTI)

    McDaniel, J.E.; Carlson, M.R.; Hurd, R.; Pless, D.E.; Grant, M.D.

    1997-12-31

    The Tampa Electric Company Polk Power Station is a nominal 250 MW (net) Integrated Gasification Combined Cycle (IGCC) power plant located to the southeast of Tampa, Florida in Polk County, Florida. This project is being partially funded under the Department of Energy`s Clean Coal Technology Program pursuant to a Round II award. The Polk Power Station uses oxygen-blown, entrained-flow IGCC technology licensed from Texaco Development Corporation to demonstrate significant reductions of SO{sub 2} and NO{sub x} emissions when compared to existing and future conventional coal-fired power plants. In addition, this project demonstrates the technical feasibility of commercial scale IGCC and Hot Gas Clean Up (HGCU) technology. The Polk Power Station achieved ``first fire`` of the gasification system on schedule in mid-July, 1996. Since that time, significant advances have occurred in the operation of the entire IGCC train. This paper addresses the operating experiences which occurred in the start-up and shakedown phase of the plant. Also, with the plant being declared in commercial operation as of September 30, 1996, the paper discusses the challenges encountered in the early phases of commercial operation. Finally, the future plans for improving the reliability and efficiency of the Unit in the first quarter of 1997 and beyond, as well as plans for future alternate fuel test burns, are detailed. The presentation features an up-to-the-minute update on actual performance parameters achieved by the Polk Power Station. These parameters include overall Unit capacity, heat rate, and availability. In addition, the current status of the start-up activities for the HGCU portion of the plant is discussed.

  5. DOE - Office of Legacy Management -- University of Florida - FL 09

    Office of Legacy Management (LM)

    Florida - FL 09 FUSRAP Considered Sites Site: UNIVERSITY OF FLORIDA (FL.09) Eliminated from consideration under FUSRAP - Referred to NRC Designated Name: Not Designated Alternate Name: None Location: Gainesville , Florida FL.09-1 Evaluation Year: 1995 FL.09-1 Site Operations: Research and development using test quantities of radioactive metal. FL.09-2 Site Disposition: Eliminated - No Authority - NRC licensed FL.09-1 Radioactive Materials Handled: Yes Primary Radioactive Materials Handled: Test

  6. DOE - Office of Legacy Management -- Humphreys Gold Co - FL 08

    Office of Legacy Management (LM)

    Humphreys Gold Co - FL 08 FUSRAP Considered Sites Site: Humphreys Gold Co. (FL.08 ) Eliminated from consideration under FUSRAP Designated Name: Not Designated Alternate Name: None Location: Jacksonville , Florida FL.08-1 Evaluation Year: 1987 FL.08-2 FL.08-3 Site Operations: Processed monazite ore in the 1950s. FL.08-3 Site Disposition: Eliminated - No Authority - No AEC involvement at the site FL.08-2 Radioactive Materials Handled: Yes Primary Radioactive Materials Handled: Thorium FL.08-1

  7. FL V1.3

    Energy Science and Technology Software Center (OSTI)

    2009-08-03

    A library of utility classes for computer vision. Contains implementations of various well-known image processing techniques, such as interest point operators and region descriptors. Includes interfaces to various libraries for image and video I/O, as well as an interface to LAPACK/BLAS. FL was developed at the University of Illinois, Urbana-Champaign (UIUC) and released under an open source license. Version 1.2 was a maintenance release provided by SNL under the LGPL license. Version 1.3 is amore » maintenance release, containing the following changes: - Improved image format handling. Now handles strided and planar memory layouts and a wider range of pixel formats. - Improved image file I/O, including better support for metadata, a wider range of stored pixel types, and a couple of new file formats. - Improvements to DOG and SIFT, and efficiency improvements in low-level convolution. - Improvements to networking, including a generic TCP listener. - Various improvements to numerical processing. The HISTORY file included in the distribution contains a more detailed description of the changes.« less

  8. Tampa Electric Company`s Polk Power Station IGCC project

    SciTech Connect (OSTI)

    Jenkins, S.D.

    1995-12-31

    Tampa Electric Company (TEC) is in the construction phase of its new Polk Power Station Unit No. 1. This unique project incorporates the use of Integrated Gasification Combined Cycle (IGCC) technology for electric power production. The project is being partially funded by the US Department of Energy (DOE), as part of the Clean Coal Technology Program. This will help to demonstrate this state-of-the-art technology, providing utilities with the ability to use a wide range of coals in an efficient, environmentally superior manner. During the summer of 1994, TEC began site development at the new Polk Power Station. Since that time, most of the Site work has been completed, and erection and installation of the power plant equipment is well underway. This is the first time that IGCC technology will be installed at a new unit at a greenfield site. This is a major endeavor for TEC in that Polk Unit No. 1 is a major addition to the existing generating capacity and it involves the demonstration of technology new to utility power generation. As a part of the Cooperative Agreement with the DOE, TEC will also be demonstrating the use of a new Hot Gas Clean-Up System which has a potential for greater IGCC efficiency.

  9. DOE and Industry Showcase New Control Systems Security Technologies at DistribuTECH

    Broader source: Energy.gov [DOE]

    DistribuTECH ConferenceTuesday-Thursday, March 23-25, 2010Tampa Convention CenterBooth #231Tampa, FL

  10. Tampa electric company - IGCC project. Quarterly report, January 1, 1996--March 31, 1996

    SciTech Connect (OSTI)

    1998-02-01

    This quarterly report consists of materials presented at a recent review of the project. The project is an IGCC project being conducted by Tampa Electric Company. The report describes the status of the facility construction, components, operations staff training, and discusses aspects of the project which may impact the final scheduled completion.

  11. S M Stoller Quarterly Sampling, STAR Center, Largo, FL

    Office of Legacy Management (LM)

    Quarterly Sampling, STAR Center, Largo, FL 7030-226 Accutest Job Number: F27229 Sampling Date: 10/07/04 Report to: S M Stoller Cathy.Kelleher@gjo.doe.gov ATTN: Cathy Kelleher Total number of pages in report: Certifications: FL (DOH E83510), NC (573), NJ (FL002), MA (FL946), IA (366), LA (03051), KS (E-10327), SC, AK This report shall not be reproduced, except in its entirety, without the written approval of Accutest Laboratories. Southeast * 4405 Vineland Road * Suite C-15 * Orlando, FL 32811 *

  12. Tampa Electric Company, Polk Power Station Unit No. 1, preliminary public design report

    SciTech Connect (OSTI)

    1994-06-01

    This preliminary Public Design Report (PDR) provides design information about Tampa Electric Company`s Polk Power Station Unit No. 1, which will demonstrate in a commercial 250 MW unit the benefits of the integration of oxygen-blown, entrained-flow coal gasification with advanced combined cycle technology. This project is partially funded by the US Department of Energy (DOE) under Round III of its Clean Coal Technology (CCT) Program under the provisions of Cooperative Agreement between DOE and Tampa Electric Company, novated on March 5,1992. The project is highlighted by the inclusion of a new hot gas cleanup system. DOE`s project management is based at its Morgantown Energy Technology Center (METC) in West Virginia. This report is preliminary, and the information contained herein is subject to revision. Definitive information will be available in the final PDR, which will be published at the completion of detailed engineering.

  13. S M Stoller Monthly Sampling, STAR Center, Largo, FL

    Office of Legacy Management (LM)

    Sampling, STAR Center, Largo, FL 110406202 Accutest Job Number: F23261 Sampling Date: 04... Test results contained within this data package meet the requirements of the National ...

  14. S M Stoller Quarterly Sampling, STAR Center, Largo, FL

    Office of Legacy Management (LM)

    0/06 Technical Report for S M Stoller Quarterly Sampling, STAR Center, Largo, FL 110406202 Accutest Job Number: F39137 Sampling Dates: 03/08/06 - 03/09/06 Report to: S M Stoller Cathy.Kelleher@gjo.doe.gov ATTN: Cathy Kelleher Total number of pages in report: Certifications: FL (DOH E83510), NC (573), NJ (FL002), MA (FL946), IA (366), LA (03051), KS (E-10327), SC, AK This report shall not be reproduced, except in its entirety, without the written approval of Accutest Laboratories. Southeast *

  15. S M Stoller Quarterly Sampling, STAR Center, Largo, FL

    Office of Legacy Management (LM)

    531 Sampling Date: 04/16/04 Report to: S M Stoller Cathy.Kelleher@gjo.doe.gov ATTN: Cathy Kelleher Total number of pages in report: Certifications: FL (DOH E83510), NC (573), NJ (FL002), MA (FL946), IA (366), LA (03051), KS (E-10327), SC, AK This report shall not be reproduced, except in its entirety, without the written approval of Accutest Laboratories. Southeast * 4405 Vineland Road * Suite C-15 * Orlando, FL 32811 * tel: 407-425-6700 * fax: 407-425-0707 * http://www.accutest.com Test results

  16. S M Stoller Quarterly Sampling, STAR Center, Largo, FL

    Office of Legacy Management (LM)

    2/04 Technical Report for S M Stoller Quarterly Sampling, STAR Center, Largo, FL 110406202 Accutest Job Number: F25409 Sampling Dates: 07/13/04 - 07/14/04 Report to: S M Stoller Cathy.Kelleher@gjo.doe.gov ATTN: Cathy Kelleher Total number of pages in report: Certifications: FL (DOH E83510), NC (573), NJ (FL002), MA (FL946), IA (366), LA (03051), KS (E-10327), SC, AK This report shall not be reproduced, except in its entirety, without the written approval of Accutest Laboratories. Southeast *

  17. S M Stoller Quarterly Sampling, STAR Center, Largo, FL

    Office of Legacy Management (LM)

    Quarterly Sampling, STAR Center, Largo, FL 110406202 Accutest Job Number: F33211 Sampling Dates: 07/13/05 - 07/14/05 Report to: S M Stoller Cathy.Kelleher@gjo.doe.gov ATTN: Cathy Kelleher Total number of pages in report: Certifications: FL (DOH E83510), NC (573), NJ (FL002), MA (FL946), IA (366), LA (03051), KS (E-10327), SC, AK This report shall not be reproduced, except in its entirety, without the written approval of Accutest Laboratories. Southeast * 4405 Vineland Road * Suite C-15 *

  18. S M Stoller Star Center-WWNA Monthly; Largo, FL

    Office of Legacy Management (LM)

    7170 Sampling Date: 10/05/04 Report to: S M Stoller Cathy.Kelleher@gjo.doe.gov ATTN: Cathy Kelleher Total number of pages in report: Certifications: FL (DOH E83510), NC (573), NJ (FL002), MA (FL946), IA (366), LA (03051), KS (E-10327), SC, AK This report shall not be reproduced, except in its entirety, without the written approval of Accutest Laboratories. Southeast * 4405 Vineland Road * Suite C-15 * Orlando, FL 32811 * tel: 407-425-6700 * fax: 407-425-0707 * http://www.accutest.com Test

  19. S M Stoller Star Center-WWNA Monthly; Largo, FL

    Office of Legacy Management (LM)

    6/04 Technical Report for S M Stoller Star Center-WWNA Monthly; Largo, FL 110406202 Accutest Job Number: F25242 Sampling Date: 07/06/04 Report to: S M Stoller Cathy.Kelleher@gjo.doe.gov ATTN: Cathy Kelleher Total number of pages in report: Certifications: FL (DOH E83510), NC (573), NJ (FL002), MA (FL946), IA (366), LA (03051), KS (E-10327), SC, AK This report shall not be reproduced, except in its entirety, without the written approval of Accutest Laboratories. Southeast * 4405 Vineland Road *

  20. Quantifying Fl Value of Hydro in Transmission Grid | Department...

    Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

    Quantifying Fl Value of Hydro in Transmission Grid 72hydrogridserviceseprikey.ppt (3.96 MB) More Documents & Publications Enviro effects of hydrokinetic turbines on fish ...

  1. S M Stoller Quarterly Sampling, STAR Center, Largo, FL

    Office of Legacy Management (LM)

    ... Technical Report for S M Stoller Quarterly Sampling, STAR Center, Largo, FL 110406202 Accutest Job Number: F23505 Sampling Dates: 041504 - 041604 Report to: S M Stoller ...

  2. Tampa Electric Company`s Polk Power Station Integrated Gasification Combined Cycle Project

    SciTech Connect (OSTI)

    Jenkins, S.D.; Shafer, J.R.

    1994-12-31

    Tampa Electric Company (TEC) is in the construction phase for the new Polk Power Station, Unit {number_sign}1. This will be the first unit at a new site and will use Integrated Gasification Combined Cycle (IGCC) technology for power generation. The unit will utilize oxygen-blown entrained-flow coal gasification, along with combined cycle technology, to provide nominal net 26OMW of generation. As part of the environmental features of this process, the sulfur species in the coal will be recovered as a commercial grade sulfuric acid by-product. The sulfur will be removed from the synthesis gas utilizing a cold gas clean-up system (CGCU).

  3. [Tampa Electric Company IGCC project]. Final public design report; Technical progress report

    SciTech Connect (OSTI)

    1996-07-01

    This final Public Design Report (PDR) provides completed design information about Tampa Electric Company`s Polk Power Station Unit No. 1, which will demonstrate in a commercial 250 MW unit the operating parameters and benefits of the integration of oxygen-blown, entrained-flow coal gasification with advanced combined cycle technology. Pending development of technically and commercially viable sorbent for the Hot Gas Cleanup System, the HGCU also is demonstrated. The report is organized under the following sections: design basis description; plant descriptions; plant systems; project costs and schedule; heat and material balances; general arrangement drawings; equipment list; and miscellaneous drawings.

  4. Tampa Electric Company -- IGCC Project. Quarterly report, July--September 1995

    SciTech Connect (OSTI)

    1995-10-01

    This is the quarterly report for 1995 of the Tampa Electric Company integrated gasification combined-cycle project at Polk Power Station. As of the end of the third quarter of 1995, engineering is essentially complete; construction is about 50% complete. The project is on schedule for the Target Project Completion Date of September 15, 1996. The work force at the site now stands at 1,300 people. Recently the project was recognized for reaching 1 million man-hours without a lost time injury. The report discusses engineering issues, project management issues, construction issues, and accomplishments of each.

  5. DOE - Office of Legacy Management -- University of Miami - FL 0-01

    Office of Legacy Management (LM)

    Miami - FL 0-01 FUSRAP Considered Sites Site: UNIVERSITY OF MIAMI (FL.0-01 ) Eliminated from consideration under FUSRAP Designated Name: Not Designated Alternate Name: None Location: Miami , Florida FL.0-01-1 Evaluation Year: 1987 FL.0-01-1 Site Operations: Research. FL.0-01-1 Site Disposition: Eliminated - Potential for contamination considered remote based on nature of the operations FL.0-01-1 Radioactive Materials Handled: None Indicated Primary Radioactive Materials Handled: None Indicated

  6. S M Stoller Star Center-WWNA Monthly; Largo, FL

    Office of Legacy Management (LM)

    ... F25982 4 4.1 102504 Technical Report for S M Stoller Star Center-WWNA Monthly; Largo, FL 110406202 Accutest Job Number: F26616 Sampling Date: 090904 Report to: S M Stoller ...

  7. Tampa Electric Company IGCC Project. Quarterly report, April 1 - June 30, 1996

    SciTech Connect (OSTI)

    1996-12-31

    Tampa Electric Company continued efforts to complete construction and start-up of the Polk Power Station, Unit {number_sign}1 which will use Integrated Gasification Combined Cycle (IGCC) technology for power generation. From an overall standpoint, the Project continues to track well. The completion of construction system turnovers to Start-up is encouraging. Start-up will accept responsibility of the plant until turnover to operations. The major focus continues to be on the production of first Syngas, scheduled for July 17. All construction, engineering, and start-up activities are in support of Syngas production. Key activities toward this goal include final checkout and startup of remaining gasification systems, completion of punch list items required for first syngas, finalization of operating procedures, preparation of site and area access control plans, site- wide safety training, and other Process Safety management (PSM) requirements.

  8. Tampa Electric Company Polk Power Station Unit Number 1. Annual report, January--December, 1993

    SciTech Connect (OSTI)

    Not Available

    1994-08-01

    This report satisfies the requirements of Cooperative Agreement DE-FC21-91MC27363, novated as of March 5, 1992, to provide an annual update report on the year`s activities associated with Tampa Electric Company`s 250 MW IGCC demonstration project for the year 1993. Tampa Electric Company`s Polk Power Station Unit 1 (PPS-1) Integrated Gasification Combined Cycle (IGCC) demonstration project will use a Texaco pressurized, oxygen-blown, entrained-flow coal gasifier to convert approximately 2,000 tons per day of coal (dry basis) coupled with a combined cycle power block to produce a net 250 MW electrical power output. Approximately 50% of the raw, hot syngas is cooled to 900 F and passed through a moving bed of zinc-based sorbent which removes sulfur containing compounds from the syngas. The remaining portion of the raw, hot syngas is cooled to 400 F for conventional acid gas removal. Sulfur-bearing compounds from both cleanup systems are sent to a conventional sulfuric acid plant to produce a marketable, high-purity sulfuric acid by-product. The cleaned medium-BTU syngas from these processes is routed to the combined cycle power generation system where it is mixed with air and burned in the combustion section of the combustion turbine. Heat is extracted from the expanded exhaust gases in a heat recovery steam generator (HRSG) to produce steam at three pressure levels for use throughout the integrated process. A highly modular, microprocessor-based distributed control system (DCS) is being developed to provide continuous and sequential control for most of the equipment on PPS-1.

  9. DOE - Office of Legacy Management -- Virginia-Carolina Chemical Corp - FL

    Office of Legacy Management (LM)

    06 Virginia-Carolina Chemical Corp - FL 06 FUSRAP Considered Sites Site: Virginia-Carolina Chemical Corp. (FL.06 ) Eliminated from consideration under FUSRAP - Referred to US EPA and State of Florida Designated Name: Not Designated Alternate Name: Conserv Corporation FL.06-1 Location: Nichols , Florida FL.06-2 Evaluation Year: 1985 FL.06-1 Site Operations: Process development studies and pilot plant testing of uranium recovery from phosphoric acid during the mid-1950s. Site Disposition:

  10. NETL F 451.1/1-1, Categorical Exclusion Designation Form

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    6622 RTI International Res Triangle Park, NC (1) Tampa Electric Company, Polk Power Station, Polk County, FL (approximately 40 miles southeast of Tampa and approximately 60 miles...

  11. S M Stoller Star Center-WWNA Monthly; Largo, FL

    Office of Legacy Management (LM)

    ... F30885 4 4.1 F30885: Chain of Custody Page 2 of 2 18 of 18 F30885 4 4.1 071505 Technical Report for S M Stoller Star Center-WWNA Monthly; Largo, FL 7030-226 Accutest Job Number: ...

  12. S M Stoller Star Center-WWNA Monthly; Largo, FL

    Office of Legacy Management (LM)

    ... F28014 4 4.1 F28014: Chain of Custody Page 2 of 2 12 of 12 F28014 4 4.1 122704 Technical Report for S M Stoller Star Center-WWNA Monthly; Largo, FL 7030-226 Accutest Job Number: ...

  13. [Tampa Electric Company IGCC project]. 1996 DOE annual technical report, January--December 1996

    SciTech Connect (OSTI)

    1997-12-31

    Tampa Electric Company`s Polk Power Station Unit 1 (PPS-1) Integrated Gasification Combined Cycle (IGCC) demonstration project uses a Texaco pressurized, oxygen-blown, entrained-flow coal gasifier to convert approximately 2,000 tons per day of coal to syngas. The gasification plant is coupled with a combined cycle power block to produce a net 250 MW electrical power output. Coal is slurried in water, combined with 95% pure oxygen from an air separation unit, and sent to the gasifier to produce a high temperature, high pressure, medium-Btu syngas with a heat content of about 250 BTUs/cf (HHV). The syngas then flows through a high temperature heat recovery unit which cools the syngas prior to its entering the cleanup systems. Molten coal ash flows from the bottom of the high temperature heat recovery unit into a water-filled quench chamber where it solidifies into a marketable slag by-product. Approximately 10% of the raw, hot syngas at 900 F is designed to pass through an intermittently moving bed of metal-oxide sorbent which removes sulfur-bearing compounds from the syngas. PPS-1 will be the first unit in the world to demonstrate this advanced metal oxide hot gas desulfurization technology on a commercial unit. The emphasis during 1996 centered around start-up activities.

  14. Santa Fe, NM 87506

    Office of Environmental Management (EM)

    July 31, 2014 Ms. Kimberly Davis Lebak Manager Los Alamos Field Office 3747 West Jemez Road, MS A316 Los Alamos, NM 87544 Mr. Pete Maggiore Assistant Manager for Environmental Operations 3747 West Jemez Road, MS A316 Los Alamos, NM 87544 Dear Ms. Lebak and Mr. Maggiore, I am pleased to enclose Recommendation 2014-02, unanimously approved by the Northern New Mexico Citizens' Advisory Board at its July 30 th meeting in Santa Fe. Please call Lee Bishop, DDFO or Menice Santistevan, Executive

  15. AMENDMENT OF SOLlClTATlONlMODlFlCATION OF CONTRACT 1 I . CONTR"CT ID CODE

    National Nuclear Security Administration (NNSA)

    SOLlClTATlONlMODlFlCATION OF CONTRACT 1 I . CONTR"CT ID CODE BWXT Pantex, LLC Route 726, Mt. Athos Road Lynchburg, VA 24506 PAGE 1 OF 2 PAGES Albuquerque, NM 8718Ii4400 I Amarillo, TX 79120 9B. DATED (SEE m M 11) 10A. MODIFICATION OF CONTRACTIORDER NO. 8. NAME AND ADDRESS OF CONTRACTOR (No., street, county, &ate, ZIP Code) I ( DE-ACOCOOAL66620 10B. DATED (SEE / E M 13) 2. AMENDMENT/MODIFICATION NO. M097 9A. AMENDMENT OF SOLICITATION NO. Offera must a d t n d e d p rsceipt of this m e n

  16. S M Stoller Monthly Sampling (Pinellas Co), STAR Center, Largo, FL

    Office of Legacy Management (LM)

    Sampling (Pinellas Co), STAR Center, Largo, FL 110406202 Accutest Job Number: F23259 Sampling Date: 04/06/04 Report to: S M Stoller Cathy.Kelleher@gjo.doe.gov ATTN: Cathy Kelleher Total number of pages in report: Certifications: FL (DOH E83510), NC (573), NJ (FL002), MA (FL946), IA (366), LA (03051), KS (E-10327), SC, AK This report shall not be reproduced, except in its entirety, without the written approval of Accutest Laboratories. Southeast * 4405 Vineland Road * Suite C-15 * Orlando, FL

  17. S M Stoller STAR Center- 4.5 Acre Site, Largo, FL

    Office of Legacy Management (LM)

    STAR Center- 4.5 Acre Site, Largo, FL 7030-226/Monthly Accutest Job Number: F27168 Sampling Date: 10/05/04 Report to: S M Stoller Cathy.Kelleher@gjo.doe.gov ATTN: Cathy Kelleher Total number of pages in report: Certifications: FL (DOH E83510), NC (573), NJ (FL002), MA (FL946), IA (366), LA (03051), KS (E-10327), SC, AK This report shall not be reproduced, except in its entirety, without the written approval of Accutest Laboratories. Southeast * 4405 Vineland Road * Suite C-15 * Orlando, FL 32811

  18. S M Stoller STAR Center- 4.5 Acre Site, Largo, FL

    Office of Legacy Management (LM)

    STAR Center- 4.5 Acre Site, Largo, FL 110406202 Accutest Job Number: F23552 Sampling Date: 04/20/04 Report to: S M Stoller Cathy.Kelleher@gjo.doe.gov ATTN: Cathy Kelleher Total number of pages in report: Certifications: FL (DOH E83510), NC (573), NJ (FL002), MA (FL946), IA (366), LA (03051), KS (E-10327), SC, AK This report shall not be reproduced, except in its entirety, without the written approval of Accutest Laboratories. Southeast * 4405 Vineland Road * Suite C-15 * Orlando, FL 32811 * tel:

  19. S M Stoller STAR Center- 4.5 Acre Site, Largo, FL

    Office of Legacy Management (LM)

    STAR Center- 4.5 Acre Site, Largo, FL 110406202 Accutest Job Number: F25243 Sampling Date: 07/06/04 Report to: S M Stoller Cathy.Kelleher@gjo.doe.gov ATTN: Cathy Kelleher Total number of pages in report: Certifications: FL (DOH E83510), NC (573), NJ (FL002), MA (FL946), IA (366), LA (03051), KS (E-10327), SC, AK This report shall not be reproduced, except in its entirety, without the written approval of Accutest Laboratories. Southeast * 4405 Vineland Road * Suite C-15 * Orlando, FL 32811 * tel:

  20. S M Stoller Star Center-B100 Monthly/Effluent; Largo, FL

    Office of Legacy Management (LM)

    B100 Monthly/Effluent; Largo, FL 7030-226 Accutest Job Number: F30882 Sampling Date: 04/06/05 Report to: S M Stoller Cathy.Kelleher@gjo.doe.gov ATTN: Cathy Kelleher Total number of pages in report: Certifications: FL (DOH E83510), NC (573), NJ (FL002), MA (FL946), IA (366), LA (03051), KS (E-10327), SC, AK This report shall not be reproduced, except in its entirety, without the written approval of Accutest Laboratories. Southeast * 4405 Vineland Road * Suite C-15 * Orlando, FL 32811 * tel:

  1. S M Stoller Star Center-B100 Monthly/Effluent; Largo, FL

    Office of Legacy Management (LM)

    B100 Monthly/Effluent; Largo, FL 7030-226 Accutest Job Number: F29123 Sampling Date: 01/06/05 Report to: S M Stoller Cathy.Kelleher@gjo.doe.gov ATTN: Cathy Kelleher Total number of pages in report: Certifications: FL (DOH E83510), NC (573), NJ (FL002), MA (FL946), IA (366), LA (03051), KS (E-10327), SC, AK This report shall not be reproduced, except in its entirety, without the written approval of Accutest Laboratories. Southeast * 4405 Vineland Road * Suite C-15 * Orlando, FL 32811 * tel:

  2. Tampa Electric Company, Polk Power Station Unit No. 1. Annual report, January--December 1992

    SciTech Connect (OSTI)

    1993-10-01

    As part of the Tampa Electric Polk Power Unit No. 1, a Texaco pressurized, oxygen-blown entrained-flow coal gasifier will convert approximately 2300 tons per day of coal (dry basis) into a medium-BTU fuel gas with a heat content of about 250 BTU/scf (LHV). Syngas produced in the gasifier flows through a high-temperature heat recovery unit which cools the gases prior to entering two parallel clean-up areas. A portion (up to 50%) of the hot syngas is cooled to 1000{degrees}F and passed through a moving bed of zinc titanate sorbent which removed sulfur containing components of the fuel gas. The project will be the first in the world to demonstrate this advanced metal oxide hot gas desulfurization technology at a commercial scale. The remaining portion of the syngas is cooled to 400{degrees}F for conventional acid gas removal. This portion of the plant is capable of processing between 50% and 100% of the dirty syngas. The cleaned low-BTU syngas is then routed to the combined cycle power generation system where it is mixed with air and burned in the gas turbine combustor. Heat is extracted from the expanded exhaust gases by a heat recovery steam generator to produce high pressure steam. This steam, along with the steam generated in the gasification process, drives a steam turbine to generate an additional 132MW of power. Internal process power consumption is approximately 62MW, and includes power for coal grinding, air separation, and feed pumps. Net output from the IGCC demonstration plant will be 260MW.

  3. Santa Fe, NM 87506

    Office of Environmental Management (EM)

    Large Format Carbon Enhanced VRLA Battery Test Results EESAT 2009 Funded by the Energy Storage Systems Program of the U.S. Department Of Energy (DOE/ESS) through Sandia National Laboratories (SNL) October 4 - 7, 2009 Seattle, Washington Presented by: Tom Hund Sandia National Laboratories Albuquerque, NM (505) 844-8627 tdhund@sandia.gov *Sandia is a multi-program laboratory operated by Sandia Corporation, a Lockheed Martin Company, for the United States Department of Energy's National Nuclear

  4. Santa Fe, NM 87506

    Office of Environmental Management (EM)

    5 Ms. Christine Gelles, Acting Manager EM-LA Field Office 3747 West Jemez Road, MS A316 Los Alamos, NM 87544 Dear Ms. Gelles, I am pleased to enclose Recommendation 2015-03, unanimously approved by the Northern New Mexico Citizens' Advisory Board at its April 8, 2015 Combined Committee meeting in Pojoaque, New Mexico. Please call Lee Bishop, Co-DDFO, Michael Gardipe, Co-DDFO, or Menice Santistevan, Executive Director, if you have questions regarding this recommendation. We look forward to the

  5. Mitigation options for fish and wildlife resources affected by port and other water-dependent developments in Tampa Bay, Florida

    SciTech Connect (OSTI)

    Dial, R.S.; Deis, D.R.

    1986-06-01

    Ten past restoration projects in Tampa Bay were evaluated. Habitats included Spartina marsh, mangrove forests, Juncus marsh, and subtidal habitat. Success was difficult to determine because goals for each project had not been defined. In-kind losses of habitat occurred in all but one project. Permanent losses occurred in at least three projects. Restoration of Spartina and Juncus marshes was recommended. Mangroves will recruit into Spartina marshes, provided a seed source is available; planting of mangroves alone is not recommended. Seagrass restoration is not recommended at this time. Twelve sites, most less than 50 ha, were identified as potential restoration sites to give 344 ha of subtidal habitat to be made shallower and 176 ha of uplands to be scraped down. The current management program's legal and policy needs for improving environmental management, the role of mitigation, and the information needed to develop mitigation plans are discussed. This report will be useful to decisionmakers concerned with wetland habitat loss and restoration in Tampa Bay, Florida, and other areas with similar habitats.

  6. TRIBAL ISSUES TOPIC GROUP MEETING SUMMARY JACKSONVILLE, FL

    Office of Environmental Management (EM)

    JACKSONVILLE, FL JANUARY 20, 1999 Mr. Kevin Blackwell (USDOT/FRA) updated the group on the status of the DOT response to DOE's inquiry about the tribal right to inspect rail shipments. The response was in the final stages of review in the General Counsel's office and is expected by July 1999. The Group has added a representative from the NRC General Counsel's office, as a topic group member, to help keep abreast of developments in the NRC's upcoming draft rulemaking regarding tribes and advanced

  7. S M Stoller Star Center-B100 Monthly/Effluent; Largo, FL

    Office of Legacy Management (LM)

    1/06 Technical Report for S M Stoller Star Center-B100 Monthly/Effluent; Largo, FL 7031-226 Accutest Job Number: F37650 Sampling Date: 01/05/06 Report to: S M Stoller Cathy.Kelleher@gjo.doe.gov ATTN: Cathy Kelleher Total number of pages in report: Certifications: FL (DOH E83510), NC (573), NJ (FL002), MA (FL946), IA (366), LA (03051), KS (E-10327), SC, AK This report shall not be reproduced, except in its entirety, without the written approval of Accutest Laboratories. Southeast * 4405 Vineland

  8. NM Invest | Open Energy Information

    Open Energy Info (EERE)

    Invest Jump to: navigation, search Name: NM Invest Place: Tyler, Texas Zip: 75703 Sector: Renewable Energy Product: Texas-based mezzanine investor to renewable projects, primarily...

  9. DOE - Office of Legacy Management -- Bayo Canyon NM Site - NM...

    Office of Legacy Management (LM)

    Land Surveying Preconstruction Meeting. August 13, 1982. NM.01-9 - Letter, R.L. Copper to G. Dawson. September 10, 1982. Required items for Purchase Contract 14501-01...

  10. DOE Zero Energy Ready Home Case Study: e2 Homes, Winter Park, FL, Custom

    Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

    Homes | Department of Energy e2 Homes, Winter Park, FL, Custom Homes DOE Zero Energy Ready Home Case Study: e2 Homes, Winter Park, FL, Custom Homes Case study of a DOE Zero Energy Ready Home in Winter Park, FL, that scored HERS 57 without PV or HERS -7 with PV. This 4,305-square-foot custom home has autoclaved aerated concrete walls, a sealed attic with R-20 spray foam, and ductless mini-split heat pumps. DOE ZERH case study: e2 Homes (1.07 MB) More Documents & Publications Building

  11. DOE Zero Energy Ready Home Case Study: Habitat for Humanity South Sarasota County, Nokomis, FL

    Broader source: Energy.gov [DOE]

    Case study of a DOE Zero Energy Ready affordable home in Nokomis, FL, achieves a HERS 51 without PV. The 1,290-ft2 1-story home has foam-filled concrete block walls, a sealed attic insulated under...

  12. File:USDA-CE-Production-GIFmaps-FL.pdf | Open Energy Information

    Open Energy Info (EERE)

    FL.pdf Jump to: navigation, search File File history File usage Florida Ethanol Plant Locations Size of this preview: 463 599 pixels. Other resolution: 464 600 pixels. Full...

  13. DOE Zero Energy Ready Home Case Study: Manatee County Habitat for Humanity, Ellenton, FL, Affordable

    Broader source: Energy.gov [DOE]

    Case study of a DOE Zero Energy Ready Home in Ellenton, FL, that scored HERS 53 without PV, HERS 23 with PV. This 1,143-square-foot affordable home has R-23 ICF walls, a spray-foamed sealed attic, solar hot water, and a ducted mini-split heat pump.

  14. DOE Zero Energy Ready Home Case Study: Southeast Volusia Habitat for Humanity, Edgewater, FL

    Broader source: Energy.gov [DOE]

    Case study of a DOE Zero Energy Ready affordable home in Edgewater, FL, that achieves a HERS score of 49 without PV. The one-story, 1,250-ft2 home has 2x4 walls with fiberglass batt inside plus R-3...

  15. DOE Zero Energy Ready Home Case Study: e2 Homes, Winter Park, FL, Custom Homes

    Broader source: Energy.gov [DOE]

    Case study of a DOE Zero Energy Ready Home in Winter Park, FL that scored HERS 57 without PV or HERS -7 with PV. This 4,305-square-foot custom home has autoclaved aerated concrete walls, a sealed attic with R-20 spray foam, and ductless mini-split heat pumps.

  16. St. Petersburg, FL: Vehicle Use of Recycled Natural Gas Derived from Wastewater Biosolids

    Broader source: Energy.gov [DOE]

    Breakout Session 3A—Conversion Technologies III: Energy from Our Waste—Will we Be Rich in Fuel or Knee Deep in Trash by 2025? St. Petersburg, FL: Vehicle Use of Recycled Natural Gas Derived from Wastewater Biosolids William Eleazer, Supervising Engineer, Brown and Caldwell

  17. 248-nm photolysis of tricarbonylnitrosylcobalt

    SciTech Connect (OSTI)

    Rayner, D.M.; Nazran, A.S.; Drouin, M.; Hackett, P.A.

    1986-06-19

    Laser-based time-resolved infrared absorption spectroscopy has been applied to the study of the 248-nm photolysis of the pseudo-nickel carbonyl, tricarbonylnitrosylcobalt, in the gas phase. Co(CO)/sub 3/NO dissociates by a series of sequential ligand eliminations to give predominantly CoCO. This species reacts back with parent Co(CO)/sub 3/NO with a gas kinetic rate constant of (6.4 +/- 0.6) x 10/sup -10/ cm/sup 3/ molecule/sup -1/ s/sup -1/ to form a binuclear species, (Co/sub 2/(CO)/sub 4/NO), of unknown structure. Added CO results in the formation of Co(CO)/sub 3/ and finally Co(CO)/sub 4/. The rate constant for the reactions of CO with Co(CO) is (6.2 +/- 0.6) x 10/sup -11/ cm/sup 3/ molecule/sup -1/ s/sup -1/ which is also a lower limit for the rates of reaction of CO with Co(CO)/sub 2/ and Co(CO)/sub 3/. This behavior shows marked similarity with recent work on the other carbonyls and begins to establish a general pattern for metal carbonyl photolysis.

  18. baepgig-tampaig | netl.doe.gov

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    3 Tampa Electric Integrated Gasification Combined-Cycle Project - Project Brief [PDF-241KB] Tampa Electric Co., Tampa, FL Program Publications Final Reports Tampa Electric Polk Power Station Integrated Gasification Combined Cycle Project, Final Technical Report [PDF-5MB] (Aug 2002) Annual/Quarterly Technical Reports Tampa Electric Company - IGCC Project, Quarterly Reports April - June 1997 [PDF-698KB] January - March 1997 [PDF-465KB] October - December 1996 [PDF-1.04MB] July - September 1996

  19. Submission Format for IMS2004 (Title in 18-point Times font)

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    4882 C 39 th IEEE Photovoltaic Specialists Conference, Tampa, FL, June 2013 Testing and Characterization of PV Modules with Integrated Microinverters Daniel Riley, Joshua Stein, Jay Kratochvil Sandia National Laboratories, Albuquerque, NM, 87123, USA Abstract - Photovoltaic (PV) modules with attached microinverters are becoming increasingly popular in PV systems, especially in the residential system market, as such systems offer several benefits not found in PV systems utilizing central

  20. Integrating Meshfree Peridynamic Models with Classical Finite...

    Office of Scientific and Technical Information (OSTI)

    for presentation at the Meshfree Methods for Large-Scale Computational Science and Engineering held October 27-28, 2014 in Tampa, FL. Research Org: Sandia National Laboratories ...

  1. Mesoscale Simulations of Particulate Flows with Parallel Distributed...

    Office of Scientific and Technical Information (OSTI)

    ... Resource Type: Conference Resource Relation: Conference: Presented at: ICMF 2010, Tampa, FL, United States, May 30 - Jun 04, 2010 Research Org: Lawrence Livermore National ...

  2. Extreme dynamic compression with a low energy laser pulse (Conference...

    Office of Scientific and Technical Information (OSTI)

    Resource Relation: Conference: Presented at: Extreme dynamic compression with a low energy laser pulse, Tampa, FL, United States, Jun 15 - Jun 19, 2015 Research Org: Lawrence ...

  3. bib-neural | netl.doe.gov

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    Big Bend Power Station Neural Network-Intelligent Sootblower (NN-ISB) Optimization - Project Brief PDF-154KB Tampa Electric Company, Apollo Beach, Hillsborough County, FL PROJECT...

  4. DOE to Address Small Businesses Barriers in Government Contracting...

    Broader source: Energy.gov (indexed) [DOE]

    from around the world to discuss management of radioactive material and related topics. ... on 12 Companies at DOE's 2014 Small Business Forum & Expo, Tampa FL, June 12, 2014

  5. UTEK | Open Energy Information

    Open Energy Info (EERE)

    NREL Yes Partnership Type Licensing Agreement Partnering Center within NREL National Bioenergy Center UTEK is a company located in Tampa, FL. References Retrieved from "http:...

  6. Institute for Business and Home Safety (IBHS) | Open Energy Informatio...

    Open Energy Info (EERE)

    Business and Home Safety (IBHS) Jump to: navigation, search Name: Institute for Business and Home Safety (IBHS) Place: Tampa, FL Information About Partnership with NREL Partnership...

  7. Oak Ridge National Laboratory Wins DOE Mentor of the Year Award at Small Business Forum & Expo

    Broader source: Energy.gov [DOE]

    Oak Ridge National Laboratory of Oak Ridge, TN, won the DOE Mentor Award at the Small Business Forum & Expo in Tampa, FL, on July 12, 2014

  8. Cesium Pentazolate: a New Nitrogen-rich Energetic Material (Conference...

    Office of Scientific and Technical Information (OSTI)

    APS Conference on Shock Compression of Condensed Matter, Tampa, FL, United States, Jun 14 - Jun 19, 2015 Research Org: Lawrence Livermore National Laboratory (LLNL),...

  9. 8798_FL

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    ... of nanoscale systems requires ... While there are several types of fuel cells, proton exchange mem- brane (PEM) cells ... side of the fuel cell, a catalyst (usu- ...

  10. HIA 2015 DOE Zero Energy Ready Home Case Study: Sunroc Builders, Bates Avenue, Lakeland, FL

    Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

    Sunroc Builders Bates Avenue Lakeland, FL DOE ZERO ENERGY READY HOME(tm) The U.S. Department of Energy invites home builders across the country to meet the extraordinary levels of excellence and quality specified in DOE's Zero Energy Ready Home program (formerly known as Challenge Home). Every DOE Zero Energy Ready Home starts with ENERGY STAR Certified Homes Version 3.0 for an energy-efficient home built on a solid foundation of building science research. Advanced technologies are designed in

  11. FAPAC-NM Executive Board | National Nuclear Security Administration

    National Nuclear Security Administration (NNSA)

    Our Locations Albuquerque Complex Federal Asian Pacific American Council - New Mexico Chapter Albuquerque, NM FAPAC-NM Executive Board FAPAC-NM Executive Board "Promoting...

  12. Radiation Tolerance of 65nm CMOS Transistors

    SciTech Connect (OSTI)

    Krohn, M.; Bentele, B.; Christian, D. C.; Cumalat, J. P.; Deptuch, G.; Fahim, F.; Hoff, J.; Shenai, A.; Wagner, S. R.

    2015-12-11

    We report on the effects of ionizing radiation on 65 nm CMOS transistors held at approximately -20C during irradiation. The pattern of damage observed after a total dose of 1 Grad is similar to damage reported in room temperature exposures, but we observe less damage than was observed at room temperature.

  13. Radiation Tolerance of 65nm CMOS Transistors

    DOE Public Access Gateway for Energy & Science Beta (PAGES Beta)

    Krohn, M.; Bentele, B.; Christian, D. C.; Cumalat, J. P.; Deptuch, G.; Fahim, F.; Hoff, J.; Shenai, A.; Wagner, S. R.

    2015-12-11

    We report on the effects of ionizing radiation on 65 nm CMOS transistors held at approximately -20°C during irradiation. The pattern of damage observed after a total dose of 1 Grad is similar to damage reported in room temperature exposures, but we observe less damage than was observed at room temperature.

  14. AMENDMENT OF SOLlClTATlONlMODlFlCATlON OF CONTRACT

    National Nuclear Security Administration (NNSA)

    Babcock & W C O X Technical Services Pantex, LLC 9B. DATED (SEE ITEM I I ) PO Box 30020 Amarillo, TX 79120 Albuquerque, NM 87185-5400 I Amarillo, TX 79120 CODE 10B. DATED (SEE ...

  15. AMENDMENT OF SOLlClTATlONlMODlFlCATlON OF CONTRACT ID PAGE I...

    National Nuclear Security Administration (NNSA)

    Albuquerque, NM 87185-5400 I Amarillo, TX 79120 I ( DE-AC04-00AL66620 10B. DATED (SEE ITEM 13) 8. NAME AND ADDRESS OF CONTRACTOR (No., street, county, state, ZIP Code) Babcock & W ...

  16. Photo Album Of FAPAC - NM Activities | National Nuclear Security...

    National Nuclear Security Administration (NNSA)

    Our Locations Albuquerque Complex Federal Asian Pacific American Council - New Mexico Chapter Albuquerque, NM Photo Album Of FAPAC - NM Activities Photo Album Of FAPAC -...

  17. DOE Zero Energy Ready Home Case Study 2013: Manatee County Habitat for Humanity, Ellenton, FL, Affordable, Hope Landing #2

    Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

    Manatee County Habitat for Humanity Ellenton, FL BUILDING TECHNOLOGIES OFFICE The U.S. Department of Energy invites home builders across the country to meet the extraordinary levels of excellence and quality specified in DOE's Zero Energy Ready Home program (formerly known as Challenge Home). Every DOE Zero Energy Ready Home starts with ENERGY STAR for Homes Version 3 for an energy-efficient home built on a solid foundation of building science research. Advanced technologies are designed in to

  18. THE SPECTRUM OF THORIUM FROM 250 nm TO 5500 nm: RITZ WAVELENGTHS AND OPTIMIZED ENERGY LEVELS

    SciTech Connect (OSTI)

    Redman, Stephen L.; Nave, Gillian; Sansonetti, Craig J.

    2014-03-01

    We have made precise observations of a thorium-argon hollow cathode lamp emission spectrum in the region between 350 nm and 1175 nm using a high-resolution Fourier transform spectrometer. Our measurements are combined with results from seven previously published thorium line lists to re-optimize the energy levels of neutral, singly, and doubly ionized thorium (Th I, Th II, and Th III). Using the optimized level values, we calculate accurate Ritz wavelengths for 19, 874 thorium lines between 250 nm and 5500 nm (40, 000 cm{sup –1} to 1800 cm{sup –1}). We have also found 102 new thorium energy levels. A systematic analysis of previous measurements in light of our new results allows us to identify and propose corrections for systematic errors in Palmer and Engleman and typographical errors and incorrect classifications in Kerber et al. We also found a large scatter with respect to the thorium line list of Lovis and Pepe. We anticipate that our Ritz wavelengths will lead to improved measurement accuracy for current and future spectrographs that make use of thorium-argon or thorium-neon lamps as calibration standards.

  19. DOE - Office of Legacy Management -- Trinity Test Site - NM 17

    Office of Legacy Management (LM)

    Trinity Test Site - NM 17 FUSRAP Considered Sites Site: TRINITY TEST SITE (NM.17 ) Eliminated from consideration under FUSRAP - U.S. Army controls site Designated Name: Not Designated Alternate Name: None Location: missile range - 30 miles west of Carrizozo , White Sands , New Mexico NM.17-1 Evaluation Year: 1985 NM.17-1 Site Operations: Detonation of the first atomic bomb occurred at this site. NM.17-1 Site Disposition: Eliminated NM.17-1 Radioactive Materials Handled: Yes Primary Radioactive

  20. HIA 2015 DOE Zero Energy Ready Home Case Study: Habitat for Humanity South Sarasota, Laurel Gardens #794, Nakomis, FL

    Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

    #794 Nokomis, FL DOE ZERO ENERGY READY HOME(tm) The U.S. Department of Energy invites home builders across the country to meet the extraordinary levels of excellence and quality specified in DOE's Zero Energy Ready Home program (formerly known as Challenge Home). Every DOE Zero Energy Ready Home starts with ENERGY STAR Certified Homes Version 3.0 for an energy-efficient home built on a solid foundation of building science research. Advanced technologies are designed in to give you superior

  1. DOE Zero Ready Home Case Study: Habitat for Humanity South Sarasota County,Laurel Gardens, Nokomis, FL

    Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

    Nokomis, FL DOE ZERO ENERGY READY HOME(tm) The U.S. Department of Energy invites home builders across the country to meet the extraordinary levels of excellence and quality specified in DOE's Zero Energy Ready Home program (formerly known as Challenge Home). Every DOE Zero Energy Ready Home starts with ENERGY STAR Certified Homes Version 3.0 for an energy-efficient home built on a solid foundation of building science research. Advanced technologies are designed in to give you superior

  2. Ion Exclusion by Sub 2-nm Carbon Nanotube Pores (Conference)...

    Office of Scientific and Technical Information (OSTI)

    Conference: Ion Exclusion by Sub 2-nm Carbon Nanotube Pores Citation Details In-Document Search Title: Ion Exclusion by Sub 2-nm Carbon Nanotube Pores Carbon nanotubes offer an ...

  3. RAPID/Roadmap/3-NM-d | Open Energy Information

    Open Energy Info (EERE)

    including an advanced annual rental installment. In addition, the developer must enter into the bid lease within 30 days. 19.2.9.12.A NMAC. 3-NM-d.13 to 3 NM-d.14 - Business...

  4. RAPID/Roadmap/3-NM-f | Open Energy Information

    Open Energy Info (EERE)

    from the NMDOT by contemplating affects the project may have on cultural andor environmental resources. 3-NM-f Public Highway Utility Accommodation Permit.pdf 3-NM-f Public...

  5. New Mexico Non-Taxable Transaction Certificate (NM NTTC) Request

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    Mexico Non-Taxable Transaction Certificate (NM NTTC) Request This form is for vendors of Los Alamos National Laboratory. To request a NM Non-Taxable Transaction Certificate (NTTC),...

  6. Electron-induced single event upsets in 28 nm and 45 nm bulk SRAMs

    DOE Public Access Gateway for Energy & Science Beta (PAGES Beta)

    Trippe, J. M.; Reed, R. A.; Austin, R. A.; Sierawski, B. D.; Weller, R. A.; Funkhouser, E. D.; King, M. P.; Narasimham, B.; Bartz, B.; Baumann, R.; et al

    2015-12-01

    In this study, we present experimental evidence of single electron-induced upsets in commercial 28 nm and 45 nm CMOS SRAMs from a monoenergetic electron beam. Upsets were observed in both technology nodes when the SRAM was operated in a low power state. The experimental cross section depends strongly on both bias and technology node feature size, consistent with previous work in which SRAMs were irradiated with low energy muons and protons. Accompanying simulations demonstrate that δ-rays produced by the primary electrons are responsible for the observed upsets. Additional simulations predict the on-orbit event rates for various Earth and Jovian environmentsmore » for a set of sensitive volumes representative of current technology nodes. The electron contribution to the total upset rate for Earth environments is significant for critical charges as high as 0.2 fC. This value is comparable to that of sub-22 nm bulk SRAMs. Similarly, for the Jovian environment, the electron-induced upset rate is larger than the proton-induced upset rate for critical charges as high as 0.3 fC.« less

  7. Electron-induced single event upsets in 28 nm and 45 nm bulk SRAMs

    SciTech Connect (OSTI)

    Trippe, J. M.; Reed, R. A.; Austin, R. A.; Sierawski, B. D.; Weller, R. A.; Funkhouser, E. D.; King, M. P.; Narasimham, B.; Bartz, B.; Baumann, R.; Schrimpf, R. D.; Labello, R.; Nichols, J.; Weeden-Wright, S. L.

    2015-12-01

    In this study, we present experimental evidence of single electron-induced upsets in commercial 28 nm and 45 nm CMOS SRAMs from a monoenergetic electron beam. Upsets were observed in both technology nodes when the SRAM was operated in a low power state. The experimental cross section depends strongly on both bias and technology node feature size, consistent with previous work in which SRAMs were irradiated with low energy muons and protons. Accompanying simulations demonstrate that δ-rays produced by the primary electrons are responsible for the observed upsets. Additional simulations predict the on-orbit event rates for various Earth and Jovian environments for a set of sensitive volumes representative of current technology nodes. The electron contribution to the total upset rate for Earth environments is significant for critical charges as high as 0.2 fC. This value is comparable to that of sub-22 nm bulk SRAMs. Similarly, for the Jovian environment, the electron-induced upset rate is larger than the proton-induced upset rate for critical charges as high as 0.3 fC.

  8. Paving the Way to Nanoelectronics 16 nm and Smaller

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    Paving the Way to Nanoelectronics 16 nm and Smaller Paving the Way to Nanoelectronics 16 nm and Smaller Print Wednesday, 30 March 2011 00:00 As the nanoelectronics industry pushes towards feature sizes of 22 nm and smaller, conventional single-exposure refractive lithography systems used to print circuit patterns onto computer chips will no longer be feasible. Extreme ultraviolet (EUV) lithography, utilizing reflective optics and 13-nm-wavelength light to print chips, is the leading candidate to

  9. FY 2013 Small Business Awards Bestowed on 12 Companies at DOE's 2014 Small

    Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

    Business Forum & Expo, Tampa FL, June 12, 2014 | Department of Energy FY 2013 Small Business Awards Bestowed on 12 Companies at DOE's 2014 Small Business Forum & Expo, Tampa FL, June 12, 2014 FY 2013 Small Business Awards Bestowed on 12 Companies at DOE's 2014 Small Business Forum & Expo, Tampa FL, June 12, 2014 September 24, 2014 - 12:20pm Addthis Award Winners Wastren-EnergX Mission Support Wins 8(a)/Small Disadvantaged Business of the Year Wastren-EnergX Mission Support Wins

  10. Paving the Way to Nanoelectronics 16 nm and Smaller

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    Paving the Way to Nanoelectronics 16 nm and Smaller Print As the nanoelectronics industry pushes towards feature sizes of 22 nm and smaller, conventional single-exposure refractive lithography systems used to print circuit patterns onto computer chips will no longer be feasible. Extreme ultraviolet (EUV) lithography, utilizing reflective optics and 13-nm-wavelength light to print chips, is the leading candidate to meet the industry's future needs. Despite strong progress in EUV lithography over

  11. Paving the Way to Nanoelectronics 16 nm and Smaller

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    Paving the Way to Nanoelectronics 16 nm and Smaller Print As the nanoelectronics industry pushes towards feature sizes of 22 nm and smaller, conventional single-exposure refractive lithography systems used to print circuit patterns onto computer chips will no longer be feasible. Extreme ultraviolet (EUV) lithography, utilizing reflective optics and 13-nm-wavelength light to print chips, is the leading candidate to meet the industry's future needs. Despite strong progress in EUV lithography over

  12. Paving the Way to Nanoelectronics 16 nm and Smaller

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    Paving the Way to Nanoelectronics 16 nm and Smaller Print As the nanoelectronics industry pushes towards feature sizes of 22 nm and smaller, conventional single-exposure refractive lithography systems used to print circuit patterns onto computer chips will no longer be feasible. Extreme ultraviolet (EUV) lithography, utilizing reflective optics and 13-nm-wavelength light to print chips, is the leading candidate to meet the industry's future needs. Despite strong progress in EUV lithography over

  13. Paving the Way to Nanoelectronics 16 nm and Smaller

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    Paving the Way to Nanoelectronics 16 nm and Smaller Print As the nanoelectronics industry pushes towards feature sizes of 22 nm and smaller, conventional single-exposure refractive lithography systems used to print circuit patterns onto computer chips will no longer be feasible. Extreme ultraviolet (EUV) lithography, utilizing reflective optics and 13-nm-wavelength light to print chips, is the leading candidate to meet the industry's future needs. Despite strong progress in EUV lithography over

  14. Paving the Way to Nanoelectronics 16 nm and Smaller

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    Paving the Way to Nanoelectronics 16 nm and Smaller Print As the nanoelectronics industry pushes towards feature sizes of 22 nm and smaller, conventional single-exposure refractive lithography systems used to print circuit patterns onto computer chips will no longer be feasible. Extreme ultraviolet (EUV) lithography, utilizing reflective optics and 13-nm-wavelength light to print chips, is the leading candidate to meet the industry's future needs. Despite strong progress in EUV lithography over

  15. Paving the Way to Nanoelectronics 16 nm and Smaller

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    Paving the Way to Nanoelectronics 16 nm and Smaller Print As the nanoelectronics industry pushes towards feature sizes of 22 nm and smaller, conventional single-exposure refractive lithography systems used to print circuit patterns onto computer chips will no longer be feasible. Extreme ultraviolet (EUV) lithography, utilizing reflective optics and 13-nm-wavelength light to print chips, is the leading candidate to meet the industry's future needs. Despite strong progress in EUV lithography over

  16. NM (United States)] 72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS...

    Office of Scientific and Technical Information (OSTI)

    Clayton, Steven Los Alamos National Lab. (LANL), Los Alamos, NM (United States) 72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS; 73 NUCLEAR PHYSICS AND RADIATION PHYSICS;...

  17. RAPID/Roadmap/12-NM-a | Open Energy Information

    Open Energy Info (EERE)

    Biological Resource Considerations (12-NM-a) The New Mexico Department of Game and Fish (NMDGF) preserves endangered or threatened wildlife in the state against any direct...

  18. RAPID/Roadmap/11-NM-b | Open Energy Information

    Open Energy Info (EERE)

    Permitting Information Desktop Toolkit BETA About Bulk Transmission Geothermal Hydropower Solar Tools Contribute Contact Us Cultural Resource Investigation Process (11-NM-b) Before...

  19. RAPID/Roadmap/3-NM-c | Open Energy Information

    Open Energy Info (EERE)

    Permitting Information Desktop Toolkit BETA About Bulk Transmission Geothermal Hydropower Solar Tools Contribute Contact Us State Encroachment Process (3-NM-c) The New Mexico...

  20. Structure of a novel 13 nm dodecahedral nanocage assembled from...

    Office of Scientific and Technical Information (OSTI)

    Structure of a novel 13 nm dodecahedral nanocage assembled from a redesigned bacterial microcompartment shell protein Citation Details In-Document Search Title: Structure of a ...

  1. RAPID/Roadmap/15-NM-a | Open Energy Information

    Open Energy Info (EERE)

    BETA About Bulk Transmission Geothermal Hydropower Solar Tools Contribute Contact Us Air Quality Permit - Construction Permit (15-NM-a) This flowchart illustrates the process...

  2. RAPID/Roadmap/15-NM-c | Open Energy Information

    Open Energy Info (EERE)

    BETA About Bulk Transmission Geothermal Hydropower Solar Tools Contribute Contact Us Air Quality Permit - Operating Permit (15-NM-c) This flowchart illustrates the process for...

  3. RAPID/Roadmap/15-NM-b | Open Energy Information

    Open Energy Info (EERE)

    BETA About Bulk Transmission Geothermal Hydropower Solar Tools Contribute Contact Us Air Quality Permit - Accelerated Construction Permit Review (15-NM-b) The developer may...

  4. Paving the Way to Nanoelectronics 16 nm and Smaller

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    will no longer be feasible. Extreme ultraviolet (EUV) lithography, utilizing reflective optics and 13-nm-wavelength light to print chips, is the leading candidate to meet the...

  5. RAPID/Roadmap/5-NM-a | Open Energy Information

    Open Energy Info (EERE)

    Hydropower Solar Tools Contribute Contact Us Drilling and Well Development (5-NM-a) The Oil Conservation Division of the New Mexico Energy, Minerals and Natural Resources...

  6. RAPID/Roadmap/7-NM-c | Open Energy Information

    Open Energy Info (EERE)

    NM-c < RAPID | Roadmap Jump to: navigation, search RAPID Regulatory and Permitting Information Desktop Toolkit BETA About Bulk Transmission Geothermal Hydropower Solar Tools...

  7. RAPID/Roadmap/14-NM-b | Open Energy Information

    Open Energy Info (EERE)

    Roadmap14-NM-b < RAPID | Roadmap Jump to: navigation, search RAPID Regulatory and Permitting Information Desktop Toolkit BETA About Bulk Transmission Geothermal Hydropower...

  8. RAPID/Roadmap/3-NM-b | Open Energy Information

    Open Energy Info (EERE)

    RAPIDRoadmap3-NM-b < RAPID | Roadmap Jump to: navigation, search RAPID Regulatory and Permitting Information Desktop Toolkit BETA About Bulk Transmission Geothermal Hydropower...

  9. Paving the Way to Nanoelectronics 16 nm and Smaller

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    ... beyond 22-nm half pitch," Proc. SPIE 7636, 76361J (2010); P. Naulleau, C. ... resist and mask materials learning," Proc. SPIE 7985, 798509 (2011). ALS Science Highlight ...

  10. RAPID/Roadmap/14-NM-c | Open Energy Information

    Open Energy Info (EERE)

    Geothermal Hydropower Solar Tools Contribute Contact Us Underground Injection Control Permit (14-NM-c) The Underground Injection Control (UIC) Permit process in New Mexico...

  11. RAPID/Roadmap/19-NM-a | Open Energy Information

    Open Energy Info (EERE)

    BETA About Bulk Transmission Geothermal Hydropower Solar Tools Contribute Contact Us Water Access and Water Rights Overview (19-NM-a) Similar to many western states, only a...

  12. Sandia, the Atlantic Council, and NM Water Resource Research...

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    the Atlantic Council, and NM Water Resource Research Institute Sponsor Roundtable on Western Water Scarcity - Sandia Energy Energy Search Icon Sandia Home Locations Contact Us ...

  13. DOE - Office of Legacy Management -- LASL Tract OO - NM 06

    Office of Legacy Management (LM)

    Tract OO - NM 06 FUSRAP Considered Sites Site: LASL TRACT OO (NM.06 ) Eliminated from consideration under FUSRAP - Site was released by the AEC for sale and unrestricted use in 1976 Designated Name: Not Designated Alternate Name: None Location: Los Alamos , New Mexico NM.06-1 Evaluation Year: 1987 NM.06-1 Site Operations: Site consists of an area of 3.85 acres on the Los Alamos Scientific Laboratory compound. This tract of land was a location for a fire alarm equipment building and part of power

  14. RAPID/Roadmap/3-NM-a | Open Energy Information

    Open Energy Info (EERE)

    State Land Office (NMSLO) to develop geothermal resources on state lands under the New Mexico Geothermal Resources Act and regulations promulgated in N.M. Admin. Code part...

  15. RAPID/Roadmap/11-NM-a | Open Energy Information

    Open Energy Info (EERE)

    where cultural resources are discovered during the project. In instances where human burials are discovered, the requirements are more stringent. 11-NM-a State Cultural...

  16. DOE - Office of Legacy Management -- ACF Industries - NM 05

    Office of Legacy Management (LM)

    Eliminated from consideration under FUSRAP - DOD site Designated Name: Not Designated ... from consideration under FUSRAP - DOD site NM.05-3 Also see Documents Related to ...

  17. Generation and use of high power 213 nm and 266 nm laser radiation and tunable 210-400 nm laser radiation with BBO crystal matrix array

    DOE Patents [OSTI]

    Gruen, Dieter M.

    2000-01-01

    A 213 nm laser beam is capable of single photon ablative photodecomposition for the removal of a polymer or biological material substrate. Breaking the molecular bonds and displacing the molecules away from the substrate in a very short time period results in most of the laser photon energy being carried away by the displaced molecules, thus minimizing thermal damage to the substrate. The incident laser beam may be unfocussed and is preferably produced by quintupling the 1064 nm radiation from a Nd:YAG solid state laser, i.e., at 213 nm. In one application, the 213 nm laser beam is expanded in cross section and directed through a plurality of small beta barium borate (BBO) crystals for increasing the energy per photon of the laser radiation directed onto the substrate. The BBO crystals are arranged in a crystal matrix array to provide a large laser beam transmission area capable of accommodating high energy laser radiation without damaging the BBO crystals. The BBO crystal matrix array may also be used with 266 nm laser radiation for carrying out single or multi photon ablative photodecomposition. The BBO crystal matrix array may also be used in an optical parametric oscillator mode to generate high power tunable laser radiation in the range of 210-400 nm.

  18. New Mexico Non-Taxable Transaction Certificate (NM NTTC) Request

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    Mexico Non-Taxable Transaction Certificate (NM NTTC) Request This form is for vendors of Los Alamos National Laboratory. To request a NM Non-Taxable Transaction Certificate (NTTC), please provide the information requested below. Request can be submitted by mail, email or fax to: Los Alamos National Laboratory P.O. Box 1663 Accounts Payable, MS P240 Los Alamos, NM 87545 Fax: (505) 665-8357 processsupport@lanl.gov Company Name (as registered with Tax Authority) NOTE: If registered with the State

  19. RAPID/Roadmap/6-NM-b | Open Energy Information

    Open Energy Info (EERE)

    storm water permit must comply with the process outlined in Green arrow.PNG 6-FD-a: Storm Water Construction General Permit Process Flowchart 6-NM-b Construction Storm...

  20. NM Underground Storage Tank Registration | Open Energy Information

    Open Energy Info (EERE)

    Underground Storage Tank Registration Jump to: navigation, search OpenEI Reference LibraryAdd to library Legal Document- OtherOther: NM Underground Storage Tank RegistrationLegal...

  1. Photoluminescent 1-2 nm sized silicon nanoparticles: A surface...

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    Photoluminescent 1-2 nm sized silicon nanoparticles: A surface-dependent system Authors: Romero, J.J., Llansola-Portols, M.J., Dell'Arciprete, M.L., Rodrguez, H.B., Moore,...

  2. RAPID/Roadmap/14-NM-e | Open Energy Information

    Open Energy Info (EERE)

    Ground Water Discharge Permit (14-NM-e) The New Mexico Environment Department (NMED) issues Ground Water Discharge Permits in the state of New Mexico. No person may cause or...

  3. RAPID/Roadmap/19-NM-b | Open Energy Information

    Open Energy Info (EERE)

    a new permit and fee will be required for any drilling beyond the permit expiration date. Process Flowchart 19-NM-b - Permit to Drill a Well with No Consumptive Use of Water.pdf...

  4. File:INL-geothermal-nm.pdf | Open Energy Information

    Open Energy Info (EERE)

    nm.pdf Jump to: navigation, search File File history File usage New Mexico Geothermal Resources Size of this preview: 466 599 pixels. Other resolution: 467 600 pixels. Full...

  5. RAPID/Roadmap/11-NM-d | Open Energy Information

    Open Energy Info (EERE)

    discovery process. NMAC 4.10.8.20. 11-NM-d Cultural Resource Discovery Process.pdf Error creating thumbnail: Page number not in range. Error creating thumbnail: Page number...

  6. RAPID/Roadmap/20-NM-a | Open Energy Information

    Open Energy Info (EERE)

    and abandonment are outlined in NMAC 19.14.73.8. 20-NM-a - Well Abandonment Process.pdf Error creating thumbnail: Page number not in range. Error creating thumbnail: Page number...

  7. Paving the Way to Nanoelectronics 16 nm and Smaller

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    at ALS Beamline 12.0.1.3, advanced EUV photoresist research can be performed while high-power stand-alone light sources are still being developed. High-quality 16-nm lines and...

  8. VISCOSITY OF AQUEOUS SODIUM CHLORIDE SOLUTIONS FROM 0 - 150o...

    Office of Scientific and Technical Information (OSTI)

    DOE Contract Number: DE-AC02-05CH11231 Resource Type: Conference Resource Relation: Conference: American Chemical Society 29th Southeast Regional Meeting, Tampa, FL, November 9-11, ...

  9. Deadline Approaching for Small Business Innovation Research Opportunit...

    Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

    ... John Hale III, Director of DOE's Office of Small and Disadvantaged Business Utilization (r) at the Small Business Forum & Expo, Tampa, FL, on July 12, 2014 Aerodyne Research Inc. ...

  10. FY 2013 Small Business Awards Bestowed on 12 Companies at DOE...

    Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

    FY 2013 Small Business Awards Bestowed on 12 Companies at DOE's 2014 Small Business Forum & Expo, Tampa FL, June 12, 2014 FY 2013 Small Business Awards Bestowed on 12 Companies at ...

  11. Albany, OR * Fairbanks, AK * Morgantown...

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    run at the Eastman Chemical Company's Kingsport, TN, site; at Tampa Electric Company's Polk Power Station in Lakeland, FL; and at the Wabash River Power Station in Terre Haute,...

  12. ORAU Wins DOE Facility Management Contractor Small Business Achievement of the Year

    Broader source: Energy.gov [DOE]

    The Oak Ridge Associated Universities (ORAU) won the Facility Management Contractor Small Business Achievement of the Year Award for FY 2013 at the Small Business Forum & Expo, June 12, 2014, Tampa, FL.

  13. BIOENERGIZEME INFOGRAPHIC CHALLENGE: Bioenergy Through Time

    Broader source: Energy.gov [DOE]

    This infographic was created by students from Robinson HS in Tampa, FL, as part of the U.S. Department of Energy-BioenergizeME Infographic Challenge. The BioenergizeME Infographic Challenge...

  14. DOE - Office of Legacy Management -- Project Gnome Site - NM 12

    Office of Legacy Management (LM)

    Gnome Site - NM 12 FUSRAP Considered Sites Site: Project Gnome Site (NM.12) Designated Name: Alternate Name: Location: Evaluation Year: Site Operations: Site Disposition: Radioactive Materials Handled: Primary Radioactive Materials Handled: Radiological Survey(s): Site Status: Also see Gnome-Coach, New Mexico, Site Documents Related to Project Gnome Site Conditional Certificate of Completion. Attached letter from New Mexico Environment Department of DOE dated September 25, 2014. Fact Sheet

  15. Origin State>> CA CA ID ID ID IL KY MD MO NM NM NY NY OH SC

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    MO NM NM NY NY OH SC TN TN TN, WA, CA TN TN TN TN Total Shipments by Route Lawrence Livermore National Laboratory General Atomics Batelle Energy Alliance Idaho National Laboratory Advanced Mixed Waste Treatment Project Argonne National Laboratory Paducah Gaseous Diffusion Plant Aberdeen Proving Grounds National Security Technologies Sandia National Laboratory Los Alamos National Laboratory Brookhaven National Laboratory CH2M Hill B&W West Valley, LLC Portsmouth Gaseous Diffusion Plant

  16. Origin State>> CA CA ID ID ID IL KY MD NM NM NV NY NY OH TN

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    NM NM NV NY NY OH TN TN TN, WA, CA TN TN TN TN TX Total Shipments by Route Lawrence Livermore National Laboratory General Atomics Advanced Mixed Waste Treatment Project Batelle Energy Alliance Idaho National Laboratory Argonne National Laboratory Paducah Gaseous Diffusion Plant Aberdeen Proving Ground Los Alamos National Laboratory Sandia National Laboratory National Security Technologies Brookhaven National Laboratory West Valley Environmental Services Portsmouth Gaseous Diffusion Plant

  17. Origin State>> CA ID ID ID IL KY MD NM NM NY NY OH SC TN TN

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    MD NM NM NY NY OH SC TN TN TN, WA, CA TN TN TN TN TX Total Shipments by Route Lawrence Livermore National Laboratory Advanced Mixed Waste Treatment Project Batelle Energy Alliance Idaho National Laboratory Argonne National Laboratory Paducah Gaseous Diffusion Plant Aberdeen Proving Ground Los Alamos National Laboratory Sandia National Laboratory Brookhaven National Laboratory West Valley Environmental Services Portsmouth Gaseous Diffusion Plant Savannah River Site Duratek/Energy Solutions Babcox

  18. Origin State>> CA ID ID ID IL NM NM OH TN TN TN, WA, CA TN TN

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    NM NM OH TN TN TN, WA, CA TN TN TN TN TX Total Shipments by Route Lawrence Livermore National Laboratory Batelle Energy Alliance Idaho National Laboratory Advanced Mixed Waste Treatment Project Argonne National Laboratory Sandia National Laboratory Los Alamos National Laboratory Portsmouth Gaseous Diffusion Plant Duratek/Energy Solutions Babcox & Wilcox Technical Services Y-12 Plant Materials & Energy Corporation (M&EC) Perma-Fix Nuclear Fuels Services Wastren Advantage, Inc.

  19. Origin State>> CA ID ID IL IL KY NM NM NV NY OH TN TN TN, WA,

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    IL IL KY NM NM NV NY OH TN TN TN, WA, CA TN TN TN TN Total Shipments by Route Lawrence Livermore National Laboratory Batelle Energy Alliance Idaho National Laboratory Energx Argonne National Laboratory Argonne National Laboratory Paducah Gaseous Diffusion Plant Sandia National Laboratory Los Alamos National Laboratory National Security Technologies West Valley Environmental Services Portsmouth Gaseous Diffusion Plant Duratek/Energy Solutions Babcox & Wilcox Technical Services Y-12 Plant

  20. NM company wants to turn your windows into solar panels

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    NM company wants to turn your windows into solar panels NM company wants to turn your windows into solar panels "There's an opportunity to generate electricity and power buildings with their windows" August 1, 2016 The UbiQD Team The UbiQD team celebrates the opening of its new quantum dot manufacturing facility in Los Alamos July 29. Contact Hunter McDaniel UbiQD Email UbiQD LLC, a quantum dot company, says it can turn windows into solar generators. "There's an opportunity to

  1. La Fonda on the Plaza, Santa Fe, NM: June 1

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    Sequencing, Finishing, and Analysis in the Future (SFAF) La Fonda on the Plaza, Santa Fe, NM: June 1 st - 3 rd , 2016 Please join us for the 11 th annual "Sequencing, Finishing and Analysis in the Future" Meeting on Wednesday, June 1 st through June 3 rd in beautiful, historic Santa Fe, NM. The three-day SFAF conference will focus on Next Generation Sequencing technologies, applications, and their effect on the rapidly advancing field of Genomics. If you have any questions, or would

  2. DOE - Office of Legacy Management -- TA-1 Manhattan Laboratory - NM 11

    Office of Legacy Management (LM)

    TA-1 Manhattan Laboratory - NM 11 FUSRAP Considered Sites Site: TA-1 MANHATTAN LABORATORY (NM.11 ) Eliminated from consideration under FUSRAP Designated Name: Not Designated Alternate Name: Main Technical Area LASL LANL NM.11-1 NM.11-2 NM.11-3 Location: Los Alamos , New Mexico NM.11-3 Evaluation Year: 1985 NM.11-1 Site Operations: Nuclear weapons research and development. NM.11-1 NM.11-3 Site Disposition: Site Disposition NM.11-1 Radioactive Materials Handled: Yes Primary Radioactive Materials

  3. EUV optical design for 100 nm CD imaging system

    SciTech Connect (OSTI)

    Sweeney, D.W.; Hudyma, R.; Chapman, H.B.; Shafer, D.

    1998-04-09

    The imaging specifications for extreme ultraviolet lithography (EUVL) projection optics parallel those of other optical lithographies. Specifications are scaled to reflect the 100 nm critical dimension for the first generation EUVL systems. The design being fabricated for the Engineering Test Stand, an EUVL alpha tool, consists of a condenser with six channels to provide an effective partial coherence factor of 0.7. The camera contains four mirrors; three of the mirrors are aspheres and the fourth is spherical. The design of the optical package has been constrained so that the angles of incidence and the variations in the angle of incidence of all rays allow for uniform multilayer coatings. The multilayers introduce a slight shift in image position and magnification. We have shown that a system aligned with visible light is also aligned at 13.4 nm. Each mirror must be fabricated with an RMS figure error of less than 0.25 nm and better than 0.2 nm RMS roughness. Optical surfaces that exceed each of these specifications individually have been fabricated. The success of EUVL requires that these specifications be met simultaneously.

  4. Cryogenic Lifetime Studies of 130 nm and 65 nm CMOS Technologies for High-Energy Physics Experiments

    SciTech Connect (OSTI)

    Hoff, James R.; Deptuch, G. W.; Wu, Guoying; Gui, Ping

    2015-03-09

    The Long Baseline Neutrino Facility intends to use unprecedented volumes of liquid argon to fill a time projection chamber in an underground facility. Research is under way to place the electronics inside the cryostat. For reasons of efficiency and economics, the lifetimes of these circuits must be well in excess of 20 years. The principle mechanism for lifetime degradation of MOSFET devices and circuits operating at cryogenic temperatures is hot carrier degradation. Choosing a process technology that is, as much as possible, immune to such degradation and developing design techniques to avoid exposure to such damage are the goals. This, then, requires careful investigation and a basic understanding of the mechanisms that underlie hot carrier degradation and the secondary effects they cause in circuits. In this work, commercially available 130 nm and 65 nm nMOS transistors operating at cryogenic temperatures are investigated. Our results show that both technologies achieve the lifetimes required by the experiment. Minimal design changes are necessary in the case of the 130 nm process and no changes whatsoever are necessary for the 65 nm process.

  5. Sandia, the Atlantic Council, and NM Water Resource Research Institute

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    Sponsor Roundtable on Western Water Scarcity the Atlantic Council, and NM Water Resource Research Institute Sponsor Roundtable on Western Water Scarcity - Sandia Energy Energy Search Icon Sandia Home Locations Contact Us Employee Locator Energy & Climate Secure & Sustainable Energy Future Stationary Power Energy Conversion Efficiency Solar Energy Wind Energy Water Power Supercritical CO2 Geothermal Natural Gas Safety, Security & Resilience of the Energy Infrastructure Energy

  6. NNSA administrator shows NM congressional delegation the Albuquerque

    National Nuclear Security Administration (NNSA)

    Complex to make case for new facility | National Nuclear Security Administration | (NNSA) administrator shows NM congressional delegation the Albuquerque Complex to make case for new facility Friday, February 26, 2016 - 1:42pm WASHINGTON, DC - Lt. Gen. Frank Klotz (Ret.), Administrator of the Department of Energy's National Nuclear Security Administration, hosted two members of the New Mexico congressional delegation on Feb. 18 for a tour of the aging facilities occupied by 1,200 NNSA

  7. Photoelectron Emission Studies in CsBr at 257 nm

    SciTech Connect (OSTI)

    Maldonado, Juan R.; Liu, Zhi; Sun, Yun; Pianetta, Piero A.; Pease, Fabian W.; /Stanford U., Elect. Eng. Dept. /SLAC, SSRL

    2006-09-28

    CsBr/Cr photocathodes were found [1,2] to meet the requirements of a multi-electron beam lithography system operating with a light energy of 4.8 eV (257nm). The fact that photoemission was observed with a light energy below the reported 7.3 eV band gap for CsBr was not understood. This paper presents experimental results on the presence of intra-band gap absorption sites (IBAS) in CsBr thin film photo electron emitters, and presents a model based on IBAS to explain the observed photoelectron emission behavior at energies below band gap. A fluorescence band centered at 330 nm with a FWHM of about 0.34 eV was observed in CsBr/Cr samples under 257 nm laser illumination which can be attributed to IBAS and agrees well with previously obtained synchrotron photoelectron spectra[1] from the valence band of CsBr films.

  8. Quercetin 3-O-methyl ether protects FL83B cells from copper induced oxidative stress through the PI3K/Akt and MAPK/Erk pathway

    SciTech Connect (OSTI)

    Tseng, Hsiao-Ling; Li, Chia-Jung; Huang, Lin-Huang; Chen, Chun-Yao; Tsai, Chun-Hao; Lin, Chun-Nan; Department of Biological Science and Technology, School of Medicine, China Medical University, Taichung, Taiwan ; Hsu, Hsue-Yin

    2012-10-01

    Quercetin is a bioflavonoid that exhibits several biological functions in vitro and in vivo. Quercetin 3-O-methyl ether (Q3) is a natural product reported to have pharmaceutical activities, including antioxidative and anticancer activities. However, little is known about the mechanism by which it protects cells from oxidative stress. This study was designed to investigate the mechanisms by which Q3 protects against Cu{sup 2+}-induced cytotoxicity. Exposure to Cu{sup 2+} resulted in the death of mouse liver FL83B cells, characterized by apparent apoptotic features, including DNA fragmentation and increased nuclear condensation. Q3 markedly suppressed Cu{sup 2+}-induced apoptosis and mitochondrial dysfunction, characterized by reduced mitochondrial membrane potential, caspase-3 activation, and PARP cleavage, in Cu{sup 2+}-exposed cells. The involvement of PI3K, Akt, Erk, FOXO3A, and Mn-superoxide dismutase (MnSOD) was shown to be critical to the survival of Q3-treated FL83B cells. The liver of both larval and adult zebrafish showed severe damage after exposure to Cu{sup 2+} at a concentration of 5 μM. Hepatic damage induced by Cu{sup 2+} was reduced by cotreatment with Q3. Survival of Cu{sup 2+}-exposed larval zebrafish was significantly increased by cotreatment with 15 μM Q3. Our results indicated that Cu{sup 2+}-induced apoptosis in FL83B cells occurred via the generation of ROS, upregulation and phosphorylation of Erk, overexpression of 14-3-3, inactivation of Akt, and the downregulation of FOXO3A and MnSOD. Hence, these results also demonstrated that Q3 plays a protective role against oxidative damage in zebrafish liver and remarked the potential of Q3 to be used as an antioxidant for hepatocytes. Highlights: ► Protective effects of Q3 on Cu{sup 2+}-induced oxidative stress in vitro and in vivo. ► Cu{sup 2+} induced apoptosis in FL83B cells via ROS and the activation of Erk. ► Q3 abolishes Cu{sup 2+}-induced apoptosis through the PI3K/Akt and MAPK

  9. Tampa Electric Co | Open Energy Information

    Open Energy Info (EERE)

    for 2010 - File1a1 Energy Information Administration Form 8262 3 4 EIA Form 861 Data Utility Id 18454 Utility Location Yes Ownership I NERC Location FRCC NERC FRCC Yes...

  10. Clean Cities: Tampa Bay Clean Cities coalition

    Alternative Fuels and Advanced Vehicles Data Center [Office of Energy Efficiency and Renewable Energy (EERE)]

    the largest transit agency in the state with revisions of their bus and rail fleet management procedures, staffed a legislatively created board charged with making policy...

  11. Tampa Electric - Commercial Energy Efficiency Rebate Programs...

    Broader source: Energy.gov (indexed) [DOE]

    State Florida Program Type Rebate Program Rebate Amount Energy Audits and CFLs: Free Insulation (Ceiling): 0.255sq. ft. Insulation (Wall): 0.40sq. ft. Insulation...

  12. Pollution Prevention Opportunity Assessment for the SNL/NM cafeterias.

    SciTech Connect (OSTI)

    McCord, Samuel Adam

    2005-12-01

    This Pollution Prevention Opportunity Assessment (PPOA) was conducted for the two Sandia National Laboratories/New Mexico cafeteria facilities between May and August 2005. The primary purpose of this PPOA is to assess waste and resource reduction opportunities and issue Pollution Prevention (P2) recommendations for Sandia's food service facilities. This PPOA contains recommendations for energy, water and resource reduction, as well as material substitution based upon environmentally preferable purchasing. Division 3000 has requested the PPOA report as part of the Division's compliance effort to implement the Environmental Management System (EMS) per DOE Order 450.1. This report contains a summary of the information collected and analyses performed with recommended options for implementation. The SNL/NM P2 Group will work with Division 3000 and the respective cafeteria facilities to implement these options.

  13. Nanobumps on silicon created with polystyrene spheres and 248 or 308 nm laser pulses

    SciTech Connect (OSTI)

    Piparia, Reema; Rothe, Erhard W.; Baird, R. J.

    2006-11-27

    Huang et al. [Appl. Phys. Lett. 86, 161911 (2005)] formed arrays of nanobumps on a silicon substrate. They applied a 248 nm laser pulse to a surface monolayer of 1-{mu}m-diameter polystyrene spheres. The authors first replicated their experiment with 248 nm light. But when 308 nm pulses were applied instead, the nanobumps had a different shape and composition. At 248 nm, much of the laser light is absorbed in the polystyrene, which serves to quickly distort, melt, and ablate the sphere. At 308 nm, very little light is absorbed. The nanobumps from 248 nm radiation are organic polymers, while those formed with 308 nm pulses are silicon based.

  14. DOE - Office of Legacy Management -- LASL Tracks Eastern Area No 3 - NM 10

    Office of Legacy Management (LM)

    Tracks Eastern Area No 3 - NM 10 FUSRAP Considered Sites Site: LASL TRACKS EASTERN AREA NO. 3 (NM.10 ) Eliminated from consideration under FUSRAP Designated Name: Not Designated Alternate Name: None Location: Area No. 3 , Los Alamos County , New Mexico NM.10-1 Evaluation Year: 1987 NM.10-2 Site Operations: These tracts were part of LASL and were subject to contamination from laboratory operations. NM.10-2 Site Disposition: Eliminated - Radiation levels below criteria per environmental radiation

  15. FY09 assessment of mercury reduction at SNL/NM.

    SciTech Connect (OSTI)

    McCord, Samuel Adam

    2010-02-01

    This assessment takes the result of the FY08 performance target baseline of mercury at Sandia National Laboratories/New Mexico, and records the steps taken in FY09 to collect additional data, encourage the voluntary reduction of mercury, and measure success. Elemental (metallic) mercury and all of its compounds are toxic, and exposure to excessive levels can permanently damage or fatally injure the brain and kidneys. Elemental mercury can also be absorbed through the skin and cause allergic reactions. Ingestion of inorganic mercury compounds can cause severe renal and gastrointestinal damage. Organic compounds of mercury such as methyl mercury, created when elemental mercury enters the environment, are considered the most toxic forms of the element. Exposures to very small amounts of these compounds can result in devastating neurological damage and death.1 SNL/NM is required to report annually on the site wide inventory of mercury for the Environmental Protection Agency's (EPA) Toxics Release Inventory (TRI) Program, as the site's inventory is excess of the ten pound reportable threshold quantity. In the fiscal year 2008 (FY08) Pollution Prevention Program Plan, Section 5.3 Reduction of Environmental Releases, a performance target stated was to establish a baseline of mercury, its principle uses, and annual quantity or inventory. This was accomplished on July 29, 2008 by recording the current status of mercury in the Chemical Information System (CIS).

  16. Ion Exclusion by Sub 2-nm Carbon Nanotube Pores

    SciTech Connect (OSTI)

    Fornasiero, F; Park, H G; Holt, J K; Stadermann, M; Grigoropoulos, C P; Noy, A; Bakajin, O

    2008-04-09

    Carbon nanotubes offer an outstanding platform for studying molecular transport at nanoscale, and have become promising materials for nanofluidics and membrane technology due to their unique combination of physical, chemical, mechanical, and electronic properties. In particular, both simulations and experiments have proved that fluid flow through carbon nanotubes of nanometer size diameter is exceptionally fast compared to what continuum hydrodynamic theories would predict when applied on this length scale, and also, compared to conventional membranes with pores of similar size, such as zeolites. For a variety of applications such as separation technology, molecular sensing, drug delivery, and biomimetics, selectivity is required together with fast flow. In particular, for water desalination, coupling the enhancement of the water flux with selective ion transport could drastically reduce the cost of brackish and seawater desalting. In this work, we study the ion selectivity of membranes made of aligned double-walled carbon nanotubes with sub-2 nm diameter. Negatively charged groups are introduced at the opening of the carbon nanotubes by oxygen plasma treatment. Reverse osmosis experiments coupled with capillary electrophoresis analysis of permeate and feed show significant anion and cation rejection. Ion exclusion declines by increasing ionic strength (concentration) of the feed and by lowering solution pH; also, the highest rejection is observed for the A{sub m}{sup Z{sub A}} C{sub n}{sup Z{sub C}} salts (A=anion, C=cation, z= valence) with the greatest Z{sub A}/Z{sub C} ratio. Our results strongly support a Donnan-type rejection mechanism, dominated by electrostatic interactions between fixed membrane charges and mobile ions, while steric and hydrodynamic effects appear to be less important. Comparison with commercial nanofiltration membranes for water softening reveals that our carbon nanotube membranes provides far superior water fluxes for similar ion

  17. Double patterning HSQ processes of zone plates for 10 nm diffraction...

    Office of Scientific and Technical Information (OSTI)

    ... Using the new process, we successfully realized zone plates of 10 nm and 12 nm outermost zones. Fig. 3 shows the SEM micrographs of the zone plates outer regions. The zone plates ...

  18. New Zone Plate for Soft X-Ray Microscopy at 15-nm Spatial Resolution

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    New Zone Plate for Soft X-Ray Microscopy at 15-nm Spatial Resolution New Zone Plate for Soft X-Ray Microscopy at 15-nm Spatial Resolution Print Wednesday, 31 August 2005 00:00 ...

  19. NM Stat. 62-11 - Review of Commission Orders | Open Energy Information

    Open Energy Info (EERE)

    NM Stat. 62-11 - Review of Commission Orders Jump to: navigation, search OpenEI Reference LibraryAdd to library Legal Document- StatuteStatute: NM Stat. 62-11 - Review of...

  20. Transport of triplet excitons along continuous 100 nm polyfluorene chains

    SciTech Connect (OSTI)

    Xi, Liang; Bird, Matthew; Mauro, Gina; Asaoka, Sadayuki; Cook, Andrew R.; Chen, Hung -Cheng; Miller, John R.

    2014-12-03

    Triplet excitons created in poly-2,7-(9,9-dihexyl)fluorene (pF) chains with end trap groups in solution are efficiently transported to and captured by the end groups. The triplets explore the entire lengths of the chains, even for ~100 nm long chains enabling determination of the completeness of end capping. The results show that the chains continuous: they may contain transient barriers or traps, such as those from fluctuations of dihedral angles, but are free of major defects that stop motion of the triplets. Quantitative determinations are aided by the addition of a strong electron donor, TMPD, which removes absorption bands of the end-trapped triplets. For chains having at least one end trap, triplet capture is quantitative on the 1 s timescale imposed by the use of the donor. Fractions of chains having no end traps were 0.15 for pF samples with anthraquinone (AQ) end traps and 0.063 with naphthylimide (NI) end traps. These determinations agreed with measurements by NMR for short (<40 polymer repeat units (PRU)) chains, where NMR determinations are accurate. The results find no evidence for traps or barriers to transport of triplets, and places limits on the possible presence of defects as impenetrable barriers to less than one per 300 PRU. The present results present a paradigm different from the current consensus, derived from observations of singlet excitons, that conjugated chains are divided into segments, perhaps by some kind of defects. For the present pF chains, the segmentation either does not apply to triplet excitons or is transient so that the defects are healed or surmounted in times much shorter than 1 s. Triplets on chains without end trap groups transfer to chains with end traps on a slower time scale. Rate constants for these bimolecular triplet transfer reactions were found to increase with the length of the accepting chain, as did rate constants for triplet transfer to the chains from small molecules like biphenyl. As a result, a second

  1. Transport of triplet excitons along continuous 100 nm polyfluorene chains

    DOE Public Access Gateway for Energy & Science Beta (PAGES Beta)

    Xi, Liang; Bird, Matthew; Mauro, Gina; Asaoka, Sadayuki; Cook, Andrew R.; Chen, Hung -Cheng; Miller, John R.

    2014-12-03

    Triplet excitons created in poly-2,7-(9,9-dihexyl)fluorene (pF) chains with end trap groups in solution are efficiently transported to and captured by the end groups. The triplets explore the entire lengths of the chains, even for ~100 nm long chains enabling determination of the completeness of end capping. The results show that the chains continuous: they may contain transient barriers or traps, such as those from fluctuations of dihedral angles, but are free of major defects that stop motion of the triplets. Quantitative determinations are aided by the addition of a strong electron donor, TMPD, which removes absorption bands of the end-trappedmore » triplets. For chains having at least one end trap, triplet capture is quantitative on the 1 µs timescale imposed by the use of the donor. Fractions of chains having no end traps were 0.15 for pF samples with anthraquinone (AQ) end traps and 0.063 with naphthylimide (NI) end traps. These determinations agreed with measurements by NMR for short (<40 polymer repeat units (PRU)) chains, where NMR determinations are accurate. The results find no evidence for traps or barriers to transport of triplets, and places limits on the possible presence of defects as impenetrable barriers to less than one per 300 PRU. The present results present a paradigm different from the current consensus, derived from observations of singlet excitons, that conjugated chains are divided into “segments,” perhaps by some kind of defects. For the present pF chains, the segmentation either does not apply to triplet excitons or is transient so that the defects are healed or surmounted in times much shorter than 1 µs. Triplets on chains without end trap groups transfer to chains with end traps on a slower time scale. Rate constants for these bimolecular triplet transfer reactions were found to increase with the length of the accepting chain, as did rate constants for triplet transfer to the chains from small molecules like biphenyl. As a

  2. DOE - Office of Legacy Management -- LASL Land Parcels A B C E K LN PL - NM

    Office of Legacy Management (LM)

    07 Land Parcels A B C E K LN PL - NM 07 Site ID (CSD Index Number): NM.09 Site Name: LOS ALAMOS LAND PARCELS A B C E K L N PIPELINE (NM.07) / LASL PIPELINE FACILITY (NM.08) / LASL TRACTS EASTERN AREA L Site Summary: These land parcels, previously owned by the federal government, were sold in 1972. The pipeline facility and eastern area L were identified separately in some documents and assigned individual numbers by FUSRAP researchers, but these parcels were included in NM.07. Site Link:

  3. bib-neural | netl.doe.gov

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    Big Bend Power Station Neural Network-Intelligent Sootblower (NN-ISB) Optimization - Project Brief [PDF-154KB] Tampa Electric Company, Apollo Beach, Hillsborough County, FL PROJECT FACT SHEET Big Bend Power Station Neural Network-Intelligent Sootblower (NN-ISB) Optimization [PDF-154KB] (Oct 2008) PROGRAM PUBLICATIONS Final Report Tampa Electric Company Big Bend Unit #2, Neural Network Based Intelligent Sootblowing System Project Performance and Review [PDF-2.2MB] (April 2005) PPII Reports:

  4. DOE and Industry Showcase New Control Systems Security Technologies at

    Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

    DistribuTECH | Department of Energy and Industry Showcase New Control Systems Security Technologies at DistribuTECH DOE and Industry Showcase New Control Systems Security Technologies at DistribuTECH March 25, 2010 - 1:20pm Addthis DistribuTECH Conference Tuesday-Thursday, March 23-25, 2010 Tampa Convention Center Booth #231 Tampa, FL Join the Department of Energy and its industry partners as they showcase six new products and technologies designed to secure the nation's energy

  5. Low-noise low-jitter 32-pixels CMOS single-photon avalanche diodes array for single-photon counting from 300 nm to 900 nm

    SciTech Connect (OSTI)

    Scarcella, Carmelo; Tosi, Alberto Villa, Federica; Tisa, Simone; Zappa, Franco

    2013-12-15

    We developed a single-photon counting multichannel detection system, based on a monolithic linear array of 32 CMOS SPADs (Complementary Metal-Oxide-Semiconductor Single-Photon Avalanche Diodes). All channels achieve a timing resolution of 100 ps (full-width at half maximum) and a photon detection efficiency of 50% at 400 nm. Dark count rate is very low even at room temperature, being about 125 counts/s for 50 ?m active area diameter SPADs. Detection performance and microelectronic compactness of this CMOS SPAD array make it the best candidate for ultra-compact time-resolved spectrometers with single-photon sensitivity from 300 nm to 900 nm.

  6. The SEMATECH Berkeley MET: extending EUV learning to 16-nm half pitch

    SciTech Connect (OSTI)

    Anderson, Christopher N.; Baclea-an, Lorie Mae; Denham, Paul E.; George, Simi; Goldberg, Kenneth A.; Jones, Michael; Smith, Nathan; Wallow, Thomas; Montgomery, Warren; Naulleau, Patrick P.

    2011-03-18

    Several high-performing resists identified in the past two years have been exposed at the 0.3-numerical-aperture (NA) SEMATECH Berkeley Microfield Exposure Tool (BMET) with an engineered dipole illumination optimized for 18-nm half pitch. Five chemically amplified platforms were found to support 20-nm dense patterning at a film thickness of approximately 45 nm. At 19-nm half pitch, however, scattered bridging kept all of these resists from cleanly resolving larger areas of dense features. At 18-nm half pitch, none of the resists were are able to cleanly resolve a single line within a bulk pattern. With this same illumination a directly imageable metal oxide hardmask showed excellent performance from 22-nm half pitch to 17-nm half pitch, and good performance at 16-nm half pitch, closely following the predicted aerial image contrast. This indicates that observed limitations of the chemically amplified resists are indeed coming from the resist and not from a shortcoming of the exposure tool. The imageable hardmask was also exposed using a Pseudo Phase-Shift-Mask technique and achieved clean printing of 15-nm half pitch lines and modulation all the way down to the theoretical 12.5-nm resolution limit of the 0.3-NA SEMATECH BMET.

  7. Scaling trends in SET pulse widths in Sub-100 nm bulk CMOS processes.

    SciTech Connect (OSTI)

    Narasimham, Balaji; Ahlbin, Jonathan R.; Schrimpf, Ronald D.; Gadlage, Matthew J.; Massengill, Lloyd W.; Vizkelethy, Gyorgy; Reed, Robert A.; Bhuva, Bharat L.

    2010-07-01

    Digital single-event transient (SET) measurements in a bulk 65-nm process are compared to transients measured in 130-nm and 90-nm processes. The measured SET widths are shorter in a 65-nm test circuit than SETs measured in similar 90-nm and 130-nm circuits, but, when the factors affecting the SET width measurements (in particular pulse broadening and the parasitic bipolar effect) are considered, the actual SET width trends are found to be more complex. The differences in the SET widths between test circuits can be attributed in part to differences in n-well contact area. These results help explain some of the inconsistencies in SET measurements presented by various researchers over the past few years.

  8. QER Public Meeting in Santa Fe, NM: State, Local and Tribal Issues...

    Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

    Office Auditorium 2600 Cerrillos Road Santa Fe, NM 87505-3258 Meeting Information Federal ... The entirety of all comments received in response to the Quadrennial Energy Review will ...

  9. Demonstration of 12 nm resolution Fresnel zone plate lens based soft x-ray microscopy

    SciTech Connect (OSTI)

    Chao, W.; Kim, J.; Rekawa, S.; Fischer, P.; Anderson, E. H.

    2009-06-05

    To extend soft x-ray microscopy to a resolution of order 10 nm or better, we developed a new nanofabrication process for Fresnel zone plate lenses. The new process, based on the double patterning technique, has enabled us to fabricate high quality gold zone plates with 12 nm outer zones. Testing of the zone plate with the full-field transmission x-ray microscope, XM-1, in Berkeley, showed that the lens clearly resolved 12 nm lines and spaces. This result represents a significant step towards 10 nm resolution and beyond.

  10. A widely tunable erbium-doped fiber laser pumped at 532 nm

    SciTech Connect (OSTI)

    Chen, C.Y. ); Choy, M.M.; Andrejco, M.J.; Saifi, M.A.; Lin, C. )

    1990-01-01

    In this paper, the authors report a tunable erbium-doped fiber laser with a very wide continuous-tuning range (1522--1567 nm). The wide tuning range was achieved using an aluminum/erbium-doped fiber; the aluminum co-doping is known to broaden the gain spectrum substantially. The tunable fiber laser has a ring laser configuration consisting of an in-line tunable etalon as the tuning element. Continuous tuning over 45 nm in the spectral range of 1522--1567 nm was achieved with 80 mW of pumping at 532 nm, using the second harmonic of a Nd:YAG laser as the pump source.

  11. The SEMATECH Berkeley MET pushing EUV development beyond 22-nm half pitch

    SciTech Connect (OSTI)

    Naulleau, P.; Anderson, C. N.; Backlea-an, L.-M.; Chan, D.; Denham, P.; George, S.; Goldberg, K. A.; Hoef, B.; Jones, G.; Koh, C.; La Fontaine, B.; McClinton, B.; Miyakawa, R.; Montgomery, W.; Rekawa, S.; Wallow, T.

    2010-03-18

    Microfield exposure tools (METs) play a crucial role in the development of extreme ultraviolet (EUV) resists and masks, One of these tools is the SEMATECH Berkeley 0.3 numerical aperture (NA) MET, Using conventional illumination this tool is limited to approximately 22-nm half pitch resolution. However, resolution enhancement techniques have been used to push the patterning capabilities of this tool to half pitches of 18 nm and below, This resolution was achieved in a new imageable hard mask which also supports contact printing down to 22 nm with conventional illumination. Along with resolution, line-edge roughness is another crucial hurdle facing EUV resists, Much of the resist LER, however, can be attributed to the mask. We have shown that intenssionally aggressive mask cleaning on an older generation mask causes correlated LER in photoresist to increase from 3.4 nm to 4,0 nm, We have also shown that new generation EUV masks (100 pm of substrate roughness) can achieve correlated LER values of 1.1 nm, a 3x improvement over the correlated LER of older generation EUV masks (230 pm of substrate roughness), Finally, a 0.5-NA MET has been proposed that will address the needs of EUV development at the 16-nm node and beyond, The tool will support an ultimate resolution of 8 nm half-pitch and generalized printing using conventional illumination down to 12 nm half pitch.

  12. EM, N.M. Officials Celebrate New Emergency Center for Waste Isolation...

    Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

    CARLSBAD, N.M. - Principal Deputy Assistant Secretary Mark Whitney joined New Mexico ... Recovery Manager Tammy Reynolds; New Mexico Environment Department Secretary Ryan ...

  13. Spectroscopic study of carbon plasma produced by the first (1064 nm) and second (532 nm) harmonics of Nd:YAG laser

    SciTech Connect (OSTI)

    Hanif, M.; Salik, M.; Arif, F.

    2015-03-15

    In this research work, spectroscopic studies of carbon (C) plasma by using laser-induced breakdown spectroscopy (LIBS) are presented. The plasma was produced by the first (1064 nm) and second (532 nm) harmonics of a Q-switched Nd:YAG (Quantel Brilliant) pulsed laser having a pulse duration of 5 ns and 10-Hz repetition rate, which is capable of delivering 400 mJ at 1064 nm and 200 mJ at 532 nm. The laser beam was focused on the target material (100% carbon) by placing it in air at atmospheric pressure. The experimentally observed line profiles of five neutral carbon (C I) lines at 247.85, 394.22, 396.14, 588.95, and 591.25 nm were used to extract the electron temperature T{sub e} by using the Boltzmann plot method and determine its value, 9880 and 9400 K, respectively, for the fundamental and second harmonics of the laser, whereas the electron density N{sub e} was determined from the Stark broadening profile of neutral carbon line at 247.85 nm. The values of N{sub e} at a distance of 0.05 mm from the target surface for the fundamental-harmonic laser with a pulse energy of 130 mJ and the second-harmonic laser with a pulse energy of 72 mJ are 4.68 × 10{sup 17} and 5.98 × 10{sup 17} cm{sup −3}, respectively. This extracted information on T{sub e} and N{sub e} is useful for the deposition of carbon thin films by using the pulsed laser deposition technique. Moreover, both plasma parameters (T{sub e} and N{sub e}) were also calculated by varying the distance from the target surface along the line of propagation of the plasma plume and also by varying the laser irradiance.

  14. STEM Mentoring Café | Department of Energy

    Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

    STEM Education » STEM Mentoring Café STEM Mentoring Café STEM Mentoring Café in Richland, WA STEM Mentoring Café in Richland, WA Read more Overview of STEM Mentoring Cafés Overview of STEM Mentoring Cafés Read more STEM Mentoring Café Tampa, FL STEM Mentoring Café Tampa, FL Read more STEM Mentoring Café in Chicago, IL STEM Mentoring Café in Chicago, IL Read more STEM Mentoring Café in Washington, DC STEM Mentoring Café in Washington, DC Read more The critical shortage of females in

  15. National Environmental Policy Act (NEPA) compliance at Sandia National Laboratories/New Mexico (SNL/NM)

    SciTech Connect (OSTI)

    Wolff, T.A.; Hansen, R.P.

    1998-08-01

    This report on National Environmental Policy Act (NEPA) compliance at Sandia National Laboratories/New Mexico (SNL/NM) chronicles past and current compliance activities and includes a recommended strategy that can be implemented for continued improvement. This report provides a list of important references. Attachment 1 contains the table of contents for SAND95-1648, National Environmental Policy Act (NEPA) Compliance Guide Sandia National Laboratories (Hansen, 1995). Attachment 2 contains a list of published environmental assessments (EAs) and environmental impact statements (EISs) prepared by SNL/NM. Attachment 3 contains abstracts of NEPA compliance papers authored by SNL/NM and its contractors.

  16. 22209_HPC_cvr_FL

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    ... server thus causing very large slow-downs during the create phase of an N-N workload ... Lawrence Livermore National Laboratory and Jim Rogers, Oak Ridge National Laboratory * ...

  17. File:USDA-CE-Production-GIFmaps-NM.pdf | Open Energy Information

    Open Energy Info (EERE)

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

  18. HSQ double patterning process for 12 nm resolution x-ray zone...

    Office of Scientific and Technical Information (OSTI)

    algorithm, we have successfully fabricated in-house gold zone plates of 12 nm outer zones. ... Publication Date: 2009-06-16 OSTI Identifier: 963539 Report Number(s): LBNL-2100E TRN: ...

  19. NM Stat. 62-9 - The Utility Franchise | Open Energy Information

    Open Energy Info (EERE)

    NM Stat. 62-9 - The Utility FranchiseLegal Abstract This statute governs state law pertaining to utilities. Published NA Year Signed or Took Effect 2013 Legal Citation...

  20. Change LOS ALAMOS, N.M., May 19, 2015-Researchers at Los Alamos...

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    tree mortality accelerating in forests May 19, 2015 Los Alamos' paper published in Nature Climate Change LOS ALAMOS, N.M., May 19, 2015-Researchers at Los Alamos National...

  1. DOI-BLM-NM-L000-2012-0020-DNA | Open Energy Information

    Open Energy Info (EERE)

    info. GDP from BLM's Grass Wells Database, LR2000 SRPs, or State Mineral Commissions Databases. Retrieved from "http:en.openei.orgwindex.php?titleDOI-BLM-NM-L000-2012-0020-DN...

  2. DOI-BLM-NM-L000-2012-0218-DNA | Open Energy Information

    Open Energy Info (EERE)

    info. GDP from BLM's Grass Wells Database, LR2000 SRPs, or State Mineral Commissions Databases. Retrieved from "http:en.openei.orgwindex.php?titleDOI-BLM-NM-L000-2012-0218-DN...

  3. Development of bottom-emitting 1300 nm vertical-cavity surface...

    Office of Scientific and Technical Information (OSTI)

    Title: Development of bottom-emitting 1300 nm vertical-cavity surface-emitting lasers. No abstract prepared. Authors: Fish, M. A. 1 ; Serkland, Darwin Keith ; Guilfoyle, Peter S. ...

  4. LOS ALAMOS, N.M., June 4, 2013-Los Alamos National Laboratory...

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    laser-driven neutrons to stop nuclear smugglers June 4, 2013 Los Alamos shows first nuclear material detection by single short-pulse-laser-driven neutron source LOS ALAMOS, N.M., ...

  5. DOI-BLM-NM-L000-2012-0200-DNA | Open Energy Information

    Open Energy Info (EERE)

    00-DNA Jump to: navigation, search NEPA Document Collection for: DOI-BLM-NM-L000-2012-0200-DNA DNA at Lightning Dock Geothermal Area for GeothermalWell Field, DNA for Injection...

  6. DOI-BLM-NM-L000-2012-0111-DNA | Open Energy Information

    Open Energy Info (EERE)

    111-DNA Jump to: navigation, search NEPA Document Collection for: DOI-BLM-NM-L000-2012-0111-DNA DNA at Lightning Dock Geothermal Area for GeothermalExploration, DNA for Three...

  7. DOI-BLM-NM-L000-2012-0046-CX | Open Energy Information

    Open Energy Info (EERE)

    6-CX Jump to: navigation, search NEPA Document Collection for: DOI-BLM-NM-L000-2012-0046-CX CX at Lightning Dock Geothermal Area for GeothermalExploration CX at Lightning Dock...

  8. DOI-BLM-NM-L000-2012-0042-DNA | Open Energy Information

    Open Energy Info (EERE)

    2-DNA Jump to: navigation, search NEPA Document Collection for: DOI-BLM-NM-L000-2012-0042-DNA DNA at Lightning Dock Geothermal Area for GeothermalExploration DNA for Well 55-7 at...

  9. Laser induced effects on ZnO targets upon ablation at 266 and 308 nm wavelengths

    SciTech Connect (OSTI)

    Jadraque, Maria; Martin, Margarita; Domingo, Concepcion

    2008-07-15

    The development of structural changes in ZnO targets, upon laser irradiation at the wavelengths of 266 and 308 nm, is studied by Raman spectroscopy. At the wavelength of 308 nm, oxygen vacancies are found to develop monotonically with increasing laser intensity. At 266 nm, a structural change in the irradiated ZnO targets, possibly related to nanostructuring, is observed above the laser fluence of 0.45 J cm{sup -2}. The different natures of the laser target interaction processes taking place at both wavelengths are investigated through the characterization of the composition and energy distribution of the species ejected in the ablation. The energy of the neutral Zn and Zn{sub 2} present in the ablation at 308 nm shows a smooth dependence on laser fluence which is consistent with the observed smooth development of oxygen vacancies. At 266 nm, the average kinetic energy of the ejected fragments is higher than at 308 nm and changes abruptly with the ablating laser fluence, consistently with the presence of a fluence threshold above which structural transform is observed at this wavelength. The plume shows the same neutral composition (Zn, ZnO, and Zn{sub 2}) at both wavelengths but the dependence on fluence of the ratio of neutral atomic Zn to the dimer Zn{sub 2} shows significant differences. From the latter, different temperature regimes can be inferred in the plume generated at both wavelengths. At 266 nm the cationic composition of the plume is mainly stoichiometric whereas at 308 nm ZnO{sub 2(3)}H{sub 2(1)}{sup +} cations have the highest intensity.

  10. DOE - Office of Legacy Management -- Ambrosia Lake Mill Site - NM 0-01

    Office of Legacy Management (LM)

    Ambrosia Lake Mill Site - NM 0-01 FUSRAP Considered Sites Site: Ambrosia Lake Mill Site (NM.0-01) Licensed to DOE for long-term custody and managed by the Office of Legacy Management Designated Name: Ambrosia Lake, New Mexico, Disposal Site Alternate Name: Ambrosia Lake Mill Site Uranium Mill in Ambrosia Lake Location: McKinley County, New Mexico Evaluation Year: Site Operations: Site Disposition: Uranium Mill Tailings Radiation Control Act (UMTRCA) Title I site Radioactive Materials Handled:

  11. DOE - Office of Legacy Management -- Blue Water AEC Ore Buying Station - NM

    Office of Legacy Management (LM)

    0-02 Blue Water AEC Ore Buying Station - NM 0-02 FUSRAP Considered Sites Site: Blue Water AEC Ore Buying Station (NM.0-02 ) Designated Name: Alternate Name: Location: Evaluation Year: Site Operations: Site Disposition: Radioactive Materials Handled: Primary Radioactive Materials Handled: Radiological Survey(s): Site Status: The history of domestic uranium procurement under U.S. Atomic Energy Commission (AEC) contracts identifies a number of ore buying stations (sampling and storage sites)

  12. DOE - Office of Legacy Management -- Grants AEC Ore Buying Station - NM 18

    Office of Legacy Management (LM)

    Grants AEC Ore Buying Station - NM 18 FUSRAP Considered Sites Site: Grants AEC Ore Buying Station (NM.18 ) Designated Name: Alternate Name: Location: Evaluation Year: Site Operations: Site Disposition: Radioactive Materials Handled: Primary Radioactive Materials Handled: Radiological Survey(s): Site Status: The history of domestic uranium procurement under U.S. Atomic Energy Commission (AEC) contracts identifies a number of ore buying stations (sampling and storage sites) that were operated

  13. DOE - Office of Legacy Management -- Project Gas Buggy Site - NM 14

    Office of Legacy Management (LM)

    Gas Buggy Site - NM 14 FUSRAP Considered Sites Site: Project Gas Buggy Site (NM.14 ) Designated Name: Alternate Name: Location: Evaluation Year: Site Operations: Site Disposition: Radioactive Materials Handled: Primary Radioactive Materials Handled: Radiological Survey(s): Site Status: Also see Gasbuggy, New Mexico, Site Nevada Test Site History Documents Related to Project Gas Buggy Site Fact Sheet Gasbuggy, New Mexico The Gasbuggy Site is located in northwestern New Mexico in Rio Arriba County

  14. DOE - Office of Legacy Management -- Shiprock Mill Site - NM 0-04

    Office of Legacy Management (LM)

    Shiprock Mill Site - NM 0-04 Site ID (CSD Index Number): NM.0-04 Site Name: Shiprock Mill Site Site Summary: Site Link: Shiprock Disposal, New Mexico, Site External Site Link: Alternate Name(s): Shiprock Mill Site Uranium Mill at Shiprock Alternate Name Documents: Location: Shiprock, New Mexico, Navajo Nation Location Documents: Historical Operations (describe contaminants): Historical Operations Documents: Eligibility Determination: Uranium Mill Tailings Radiation Control Act (UMTRCA) Title I

  15. Imaging magnetic domain structure in sub-500 nm thin film elements

    SciTech Connect (OSTI)

    Kirk, K. J.; McVitie, S.; Chapman, J. N.; Wilkinson, C. D. W.

    2001-06-01

    Magnetic imaging in the transmission electron microscope (TEM) has been used to examine submicron elements with the aim of discovering down to what element size complex domain patterns can form. The elements were squares, circles, triangles, and pentagons in the size range 100{endash}500 nm and were made from 36 nm Co films or 8 nm Ni{sub 80}Fe{sub 20} (NiFe) with in-plane magnetization. The magnetic domain structures in these elements were imaged at high resolution using the differential phase contrast imaging mode in a TEM. Nonuniform magnetization structures were seen in the images. Vortices were present at remanence in all shapes of 36-nm-thick Co elements down to 100 nm size and in circular NiFe elements down to 116 nm diameter. Triangular NiFe elements did not have a vortex state at remanence, instead the magnetization curved round within the element but did not achieve complete flux closure. In simulations of square and circular NiFe elements, it was found that defects at the edges of the elements encouraged reversal by a vortex mechanism, whereas for simulated elements with no defects, reversal was by rotation and occurred at much lower fields. {copyright} 2001 American Institute of Physics.

  16. A compact ultranarrow high-power laser system for experiments with 578 nm ytterbium clock transition

    SciTech Connect (OSTI)

    Cappellini, G.; Lombardi, P.; Mancini, M.; Pagano, G.; Pizzocaro, M.; Fallani, L.; Catani, J.

    2015-07-15

    In this paper, we present the realization of a compact, high-power laser system able to excite the ytterbium clock transition at 578 nm. Starting from an external-cavity laser based on a quantum dot chip at 1156 nm with an intra-cavity electro-optic modulator, we were able to obtain up to 60 mW of visible light at 578 nm via frequency doubling. The laser is locked with a 500 kHz bandwidth to an ultra-low-expansion glass cavity stabilized at its zero coefficient of thermal expansion temperature through an original thermal insulation and correction system. This laser allowed the observation of the clock transition in fermionic {sup 173}Y b with a <50 Hz linewidth over 5 min, limited only by a residual frequency drift of some 0.1 Hz/s.

  17. Passivation of c-Si surfaces by sub-nm amorphous silicon capped with silicon nitride

    SciTech Connect (OSTI)

    Wan, Yimao Yan, Di; Bullock, James; Zhang, Xinyu; Cuevas, Andres

    2015-12-07

    A sub-nm hydrogenated amorphous silicon (a-Si:H) film capped with silicon nitride (SiN{sub x}) is shown to provide a high level passivation to crystalline silicon (c-Si) surfaces. When passivated by a 0.8 nm a-Si:H/75 nm SiN{sub x} stack, recombination current density J{sub 0} values of 9, 11, 47, and 87 fA/cm{sup 2} are obtained on 10 Ω·cm n-type, 0.8 Ω·cm p-type, 160 Ω/sq phosphorus-diffused, and 120 Ω/sq boron-diffused silicon surfaces, respectively. The J{sub 0} on n-type 10 Ω·cm wafers is further reduced to 2.5 ± 0.5 fA/cm{sup 2} when the a-Si:H film thickness exceeds 2.5 nm. The passivation by the sub-nm a-Si:H/SiN{sub x} stack is thermally stable at 400 °C in N{sub 2} for 60 min on all four c-Si surfaces. Capacitance–voltage measurements reveal a reduction in interface defect density and film charge density with an increase in a-Si:H thickness. The nearly transparent sub-nm a-Si:H/SiN{sub x} stack is thus demonstrated to be a promising surface passivation and antireflection coating suitable for all types of surfaces encountered in high efficiency c-Si solar cells.

  18. A 4 to 0.1 nm FEL Based on the SLAC Linac

    SciTech Connect (OSTI)

    Pellegrini, C.; /UCLA

    2012-06-05

    The author show that using existing electron gun technology and a high energy linac like the one at SLAC, it is possible to build a Free Electron Laser operating around the 4 nm water window. A modest improvement in the gun performance would further allow to extend the FEL to the 0.1 nm region. Such a system would produce radiation with a brightness many order of magnitude above that of any synchrotron radiation source, existing or under construction, with laser power in the multigawatt region and subpicosecond pulse length.

  19. Measurement of the quantum efficiency of TMAE and TEA from threshold to 120 nm

    SciTech Connect (OSTI)

    Holroyd, R.A.; Preses, J.M.; Woody, C.L.; Johnson, R.A.

    1986-01-01

    Several existing and planned high energy physics experiments incorporate detectors which use either TMAE (tetrakis-dimethylaminoethylene) or TEA (triethylamine) as their photosensitive agent. Understanding the operation of these devices requires knowledge of the absolute photoionization quantum efficiencies and absorption lengths of TMAE and TEA. In an experiment performed at the National Synchrotron Light source at Brookhaven National Laboratory, we have measured these parameters from 120 nm to 280 nm. The quantum efficiencies were normalized to the known photoionization yields of benzene and cis-2-butene. The results of these measurements and details of the experiment are presented in this paper.

  20. New Zone Plate for Soft X-Ray Microscopy at 15-nm Spatial Resolution

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    New Zone Plate for Soft X-Ray Microscopy at 15-nm Spatial Resolution New Zone Plate for Soft X-Ray Microscopy at 15-nm Spatial Resolution Print Wednesday, 31 August 2005 00:00 Analytical tools that combine spatial resolution with elemental and chemical identification at the nanometer scale along with large penetration depth are indispensable for the life and physical sciences. The XM-1 soft x-ray microscope at the ALS produces images that not only reveal structures but can identify their

  1. Efficient methylammonium lead iodide perovskite solar cells with active layers from 300 to 900 nm

    SciTech Connect (OSTI)

    Momblona, C.; Malinkiewicz, O.; Soriano, A.; Gil-Escrig, L.; Bandiello, E.; Scheepers, M.; Bolink, H. J.; Edri, E.

    2014-08-01

    Efficient methylammonium lead iodide perovskite-based solar cells have been prepared in which the perovskite layer is sandwiched in between two organic charge transporting layers that block holes and electrons, respectively. This configuration leads to stable and reproducible devices that do not suffer from strong hysteresis effects and when optimized lead to efficiencies close to 15%. The perovskite layer is formed by using a dual-source thermal evaporation method, whereas the organic layers are processed from solution. The dual-source thermal evaporation method leads to smooth films and allows for high precision thickness variations. Devices were prepared with perovskite layer thicknesses ranging from 160 to 900 nm. The short-circuit current observed for these devices increased with increasing perovskite layer thickness. The main parameter that decreases with increasing perovskite layer thickness is the fill factor and as a result optimum device performance is obtained for perovskite layer thickness around 300 nm. However, here we demonstrate that with a slightly oxidized electron blocking layer the fill factor for the solar cells with a perovskite layer thickness of 900 nm increases to the same values as for the devices with thin perovskite layers. As a result the power conversion efficiencies for the cells with 300 and 900 nm are very similar, 12.7% and 12%, respectively.

  2. Precursor to equatorial spread-F in OI 630.0 nm dayglow

    SciTech Connect (OSTI)

    Sridharan, R.; Raju, D.P.; Raghavarao, R.; Ramarao, P.V.S.

    1994-12-15

    The authors report a correlation between 630 nm O sdayglow measurements made from India and the occurance of equatorial spread F (ESF). They observe that features of the dayglow can serve as a precursor for the appearance of ESF phenomena, with a lead time of up to 3 hours.

  3. Performance of a High-Concentration Erbium-Doped Fiber Amplifier with 100 nm Amplification Bandwidth

    SciTech Connect (OSTI)

    Hajireza, P.; Shahabuddin, N. S.; Abbasi-Zargaleh, S.; Emami, S. D.; Abdul-Rashid, H. A.; Yusoff, Z.

    2010-07-07

    Increasing demand for higher bandwidth has driven the need for higher Wavelength Division Multiplexing (WDM) channels. One of the requirements to achieve this is a broadband amplifier. This paper reports the performance of a broadband, compact, high-concentration and silica-based erbium-doped fiber amplifier. The amplifier optimized to a 2.15 m long erbium-doped fiber with erbium ion concentration of 2000 ppm. The gain spectrum of the amplifier has a measured amplification bandwidth of 100 nm using a 980 nm laser diode with power of 150 mW. This silica-based EDFA shows lower noise figure, higher gain and wider bandwidth in shorter wavelengths compared to Bismuth-based EDFA with higher erbium ion concentration of 3250 ppm at equivalent EDF length. The silica-based EDF shows peak gain at 22 dB and amplification bandwidth between 1520 nm and 1620 nm. The lowest noise figure is 5 dB. The gain is further improved with the implementation of enhanced EDFA configurations.

  4. Imaging of electrical response of NiOx under controlled environment with sub-25-nm resolution

    DOE Public Access Gateway for Energy & Science Beta (PAGES Beta)

    Jacobs, Christopher B.; Ievlev, Anton V.; Collins, Liam F.; Muckley, Eric S.; Joshi, Pooran C.; Ivanov, Ilia N.

    2016-07-19

    The spatially resolved electrical response of rf-sputtered polycrystalline NiOx films composed of 40 nm crystallites was investigated under different relative humidity levels (RH). The topological and electrical properties (surface potential and resistance) were characterized using Kelvin probe force microscopy (KPFM) and conductive scanning probe microscopy at 0%, 50%, and 80% relative humidity with sub 25nm resolution. The surface potential of NiOx decreased by about 180 mV and resistance decreased in a nonlinear fashion by about 2 G when relative humidity was increased from 0% to 80%. The dimensionality of surface features obtained through autocorrelation analysis of topological, surface potential andmore » resistance maps increased linearly with increased relative humidity as water was adsorbed onto the film surface. Spatially resolved surface potential and resistance of the NiOx films were found to be heterogeneous, with distinct features that grew in size from about 60 nm to 175 nm between 0% and 80% RH levels, respectively. Here, we find that the changes in the heterogeneous character of the NiO films are consistent through the topological, surface potential, and resistance measurements, suggesting that the nanoscale surface potential and resistance properties converge with the mesoscale properties as water is adsorbed onto the NiOx film.« less

  5. EM, N.M. Officials Celebrate New Emergency Center for Waste Isolation Pilot Plant

    Broader source: Energy.gov [DOE]

    CARLSBAD, N.M. – Principal Deputy Assistant Secretary Mark Whitney joined New Mexico officials and others to mark the completion of a new state-of-the-art Waste Isolation Pilot Plant (WIPP) Emergency Operations Center in a ribbon-cutting ceremony recently.

  6. Video: Director John Hale III Discusses the 2014 Small Business Forum

    Broader source: Energy.gov [DOE]

    The U.S. Department of Energy's Office of Small and Disadvantaged Business Utilization (OSDBU) presented 12 small businesses with awards at the conclusion of the FY 2013 Small Business Awards Forum, held in Tampa, FL, from June 10-12, 2014.

  7. THE INFRARED SPECTRUM OF URANIUM HOLLOW CATHODE LAMPS FROM 850 nm to 4000 nm: WAVENUMBERS AND LINE IDENTIFICATIONS FROM FOURIER TRANSFORM SPECTRA

    SciTech Connect (OSTI)

    Redman, Stephen L.; Ramsey, Lawrence W.; Mahadevan, Suvrath [Department of Astronomy and Astrophysics, Pennsylvania State University, University Park, PA 16802 (United States); Lawler, James E. [Department of Physics, University of Wisconsin, 1150 University Avenue, Madison, WI 53706 (United States); Nave, Gillian [National Institute of Standards and Technology, Gaithersburg, MD 20899 (United States)

    2011-08-01

    We provide new measurements of wavenumbers and line identifications of 10, 100 U I and U II near-infrared (NIR) emission lines between 2500 cm{sup -1} and 12, 000 cm{sup -1} (4000-850 nm) using archival Fourier transform spectrometer spectra from the National Solar Observatory. This line list includes isolated uranium lines in the Y, J, H, K, and L bands (0.9-1.1 {mu}m, 1.2-1.35 {mu}m, 1.5-1.65 {mu}m, 2.0-2.4 {mu}m, and 3.0-4.0 {mu}m, respectively), and provides six times as many calibration lines as thorium in the NIR spectral range. The line lists we provide enable inexpensive, commercially available uranium hollow cathode lamps to be used for high-precision wavelength calibration of existing and future high-resolution NIR spectrographs.

  8. MAGNETIC FIELDS OF AN ACTIVE REGION FILAMENT FROM FULL STOKES ANALYSIS OF Si I 1082.7 nm AND He I 1083.0 nm

    SciTech Connect (OSTI)

    Xu, Z.; Liu, Y.

    2012-04-20

    Vector magnetic fields of an active region filament in the photosphere and upper chromosphere are obtained from spectro-polarimetric observations recorded with the Tenerife Infrared Polarimeter (TIP II) at the German Vacuum Tower Telescope. We apply Milne-Eddington inversions on full Stokes vectors of the photospheric Si I 1082.7 nm and the upper chromospheric He I triplet at 1083.0 nm to obtain the magnetic field vector and velocity maps in two atmosphere layers. We find that (1) a complete filament was already present in H{alpha} at the beginning of the TIP II data acquisition. Only a partially formed one, composed of multiple small threads, was present in He I. (2) The AR filament comprises two sections. One shows strong magnetic field intensities, about 600-800 G in the upper chromosphere and 800-1000 G in the photosphere. The other exhibits only comparatively weak magnetic field strengths in both layers. (3) The Stokes V signal is indicative of a dip in the magnetic field strength close to the chromospheric PIL. (4) In the chromosphere, consistent upflows are found along the PIL flanked by downflows. (5) The transversal magnetic field is nearly parallel to the PIL in the photosphere and inclined by 20 Degree-Sign -30 Degree-Sign in the chromosphere. (6) The chromospheric magnetic field around the filament is found to be in normal configuration, while the photospheric field presents a concave magnetic topology. The observations are consistent with the emergence of a flux rope with a subsequent formation of a filament.

  9. Stable formation of ultrahigh power-density 248 nm channels in Xe cluster targets

    SciTech Connect (OSTI)

    Borisov, Alex B.; Racz, Ervin; Khan, Shahab F.; Poopalasingam, Sankar; McCorkindale, John C.; Boguta, John; Longworth, James W.; Rhodes, Charles K.

    2012-07-11

    The optimization of relativistic and ponderomotive self-channeling of ultra-powerful 248 nm laser pulses launched in underdense plasmas with an appropriate longitudinal gradient in the electron density profile located at the initial stage of the self-channeling leads to (1) stable channel formation and (2) highly efficient power compression producing power densities in the 10{sup 19}-10{sup 20} W/cm{sup 3} range. The comparison of theoretical studies with experimental results involving the correlation of (a) Thomson images of the electron density with (b) x-ray images of the channel morphology demonstrates that more than 90% of the incident 248 nm power can be trapped in stable channels and that this stable propagation can be extended to power levels significantly exceeding the critical power of the self-channeling process.

  10. 32.8-nm X-ray laser produced in a krypton cluster jet

    SciTech Connect (OSTI)

    Ivanova, E P; Vinokhodov, A Yu

    2013-12-31

    We have interpreted the well-known experimental quantum yield data for a 32.8-nm X-ray laser operating at the 3d{sup 9}4d (J = 0) 3d{sup 9}4p (J = 1) transition of Kr{sup 8+} with the use of gaseous krypton or a krypton cluster jet. Proceeding from our model we propose a novel scheme for the 32.8-nm laser produced in a krypton cluster jet. The quantum yield is shown to saturate for a plasma length of ?300 ?m, a krypton ion density n{sub Kr} ? (4 9) 10{sup 19} cm{sup -3}, and an electron temperature Te ? 5000 eV. In this case, the energy conversion coefficient amounts to ?5 10{sup -3} of the pump pulse energy. We propose the experimental setup for producing a highefficiency subpicosecond X-ray laser in a krypton cluster jet. (lasers)

  11. Demonstration of a GaAs-based 1550-nm continuous wave photomixer

    SciTech Connect (OSTI)

    Zhang, W.-D. Brown, E. R.; Middendorf, J. R.

    2015-01-12

    An Er:GaAs-based 1550-nm CW photomixer is demonstrated. The related mechanism is extrinsic photoconductivity with optical absorption between the localized deep levels created by the Er and the extended states above the conduction band edge of GaAs. With the power boost made possible by a fiber-coupled erbium-doped-fiber amplifier, the Er:GaAs photomixers, operating at 1550 nm, radiate THz power levels easily measured by a Golay cell, and display a power spectrum having a −3 dB roll-off frequency of 307 GHz. This corresponds to a photocarrier lifetime of 520 fs, in good agreement with a previous measurement of the bandwidth of the same material in a photoconductive switch.

  12. 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.

  13. Museum LOS ALAMOS, N.M., Sept. 5, 2013-Los Alamos National Laboratory Director Charlie

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    lab director to link science education, national security in TEDxABQ talk September 5, 2013 Watch live stream at home or at Bradbury Science Museum LOS ALAMOS, N.M., Sept. 5, 2013-Los Alamos National Laboratory Director Charlie McMillan will discuss the linkage between national security and early education in science, technology, engineering, and mathematics (STEM) during a presentation at the TEDxABQ conference in Albuquerque on Saturday, Sept. 7. Although the event is expected to sell out

  14. New Zone Plate for Soft X-Ray Microscopy at 15-nm Spatial Resolution

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    New Zone Plate for Soft X-Ray Microscopy at 15-nm Spatial Resolution Print Analytical tools that combine spatial resolution with elemental and chemical identification at the nanometer scale along with large penetration depth are indispensable for the life and physical sciences. The XM-1 soft x-ray microscope at the ALS produces images that not only reveal structures but can identify their chemical elements and measure magnetic and other properties as well. Now a new method for creating optical

  15. Michaela G. Farr and Joshua S. Stein Sandia National Laboratory, Albuquerque, NM, 87185, United States

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    Spatial Variations in Temperature across a Photovoltaic Array Michaela G. Farr and Joshua S. Stein Sandia National Laboratory, Albuquerque, NM, 87185, United States ABSTRACT - The efficiency of any photovoltaic device is significantly affected by its operating temperature. It is therefore of great interest to the PV industry to have accurate models of module and array temperatures. Existing PV performance models generally assume that module temperature is a function of plane-of-array irradiance,

  16. LOS ALAMOS, N.M., April 2, 2015-Randy Fraser of Los Alamos National Laboratory's

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    Randy Fraser receives NNSA 2014 Security Professional of the Year award April 2, 2015 LOS ALAMOS, N.M., April 2, 2015-Randy Fraser of Los Alamos National Laboratory's Security, Safeguards and Emergency Response Directorate received a 2014 National Nuclear Security Administration Security Professional of the Year award. "I am extremely honored to have the privilege of presenting these amazing individuals with the Bradley A. Peterson Federal and Contractor Security Professional of the Year

  17. LOS ALAMOS, N.M., April 7, 2016-Los Alamos and Sandia National Laboratories

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    Looking inside plutonium April 7, 2016 New Mexico labs go where no one has gone before LOS ALAMOS, N.M., April 7, 2016-Los Alamos and Sandia National Laboratories have recently conducted plutonium experiments using Sandia's pulsed power Z Machine that have reached regions of pressure, temperature and density in plutonium never before explored in the laboratory. "With Z we have very carefully reached pressure, temperature and density regimes that are relevant to those seen during a nuclear

  18. LOS ALAMOS, N.M., Aug. 24, 2016-Eight Los Alamos National Laboratory innovations

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    as R&D 100 Award finalists August 24, 2016 Eight technologies offer breakthroughs in energy, computing, cybersecurity, health, materials and particle accelerators LOS ALAMOS, N.M., Aug. 24, 2016-Eight Los Alamos National Laboratory innovations were selected as finalists for the 2016 R&D 100 Awards, which honor the top 100 proven technological advances of the past year as determined by a panel selected by R&D Magazine. The finalists, with projects covering energy, computing, health

  19. LOS ALAMOS, N.M., Dec. 15, 2014-The Los Alamos National Laboratory Fellows list

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    Laboratory Fellows for 2014 December 15, 2014 Honorees span sciences in physics, astrophysics, chemistry LOS ALAMOS, N.M., Dec. 15, 2014-The Los Alamos National Laboratory Fellows list expands by five this week as a new group of high achievers is named. The honorees this year are Christopher L. Fryer, Herbert O. Funsten, John C. Gordon, Jaqueline L. Kiplinger and David S. Moore. "The sustained scientific excellence demonstrated by the work of Chris, Herb, John, Jaqueline and David

  20. LOS ALAMOS, N.M., Dec. 17, 2015-Scientists at Los Alamos National Laboratory

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    more accurately tracks gases for underground nuclear explosion detection December 17, 2015 Model uniquely pairs seismic data with radionuclide fluid-flow models LOS ALAMOS, N.M., Dec. 17, 2015-Scientists at Los Alamos National Laboratory have developed a new, more thorough method for detecting underground nuclear explosions (UNEs) by coupling two fundamental elements-seismic models with gas-flow models-to create a more complete picture of how an explosion's evidence (radionuclide gases) seep to

  1. LOS ALAMOS, N.M., Dec. 22, 2014-Los Alamos National Laboratory today

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    science news of 2014 December 22, 2014 Biosurveillance, secure computing, alternative energy, unique capabilities highlight the year LOS ALAMOS, N.M., Dec. 22, 2014-Los Alamos National Laboratory today announced its annual top science stories of 2014. The 12 stories selected from diverse disciplines supporting Los Alamos's national security mission range from transferring fool-proof computer encryption techniques to market, to using social media for forecasting diseases, creating a virtual human

  2. LOS ALAMOS, N.M., Dec. 3, 2015-Los Alamos National Laboratory molecular

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    explore new strategies to improve photosynthesis, increase energy yields December 6, 2015 First talk is Monday, Dec. 7 in Albuquerque LOS ALAMOS, N.M., Dec. 3, 2015-Los Alamos National Laboratory molecular biologist Richard Sayre discusses how improving photosynthetic efficiency may result in substantial increases in crop yields during two Frontiers in Science lectures titled "Hacking Photosynthesis: Growing Plants to Power Our Engines and Feed the World" beginning Dec. 7 in

  3. LOS ALAMOS, N.M., Feb. 23, 2015-Nine Los Alamos National Laboratory scientists

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    join prestigious ranks of APS fellows February 23, 2015 LOS ALAMOS, N.M., Feb. 23, 2015-Nine Los Alamos National Laboratory scientists are new Fellows of the American Physical Society. Cristian Batista, Malcolm Boshier, Dana Dattelbaum, Stephen Doorn, Michelle Espy, George Rodriguez, Avadh Saxena, Sergei Tretiak and Lin Yin are the new honorees. "Selection as American Physical Society fellows is de facto proof of the vibrant engagement Los Alamos scientists are having with the larger

  4. LOS ALAMOS, N.M., July 1, 2014-Los Alamos National Laboratory employees

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    27,000 pledged by Los Alamos National Laboratory employees in 2014 LAESF scholarship drive July 1, 2014 Investing in success of Northern New Mexico students LOS ALAMOS, N.M., July 1, 2014-Los Alamos National Laboratory employees pledged a record $327,000 during the recently completed 2014 Los Alamos Employees' Scholarship Fund (LAESF) drive. The drive encourages Laboratory employees, retirees, and subcontract personnel to donate to a fund that awards college scholarships to Northern New Mexico

  5. LOS ALAMOS, N.M., July 24, 2014-Dipen Sinha of Los Alamos National Laboratory's

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    Acoustics topic of upcoming Frontiers in Science series July 24, 2014 Tapping sound waves to address energy, national security challenges LOS ALAMOS, N.M., July 24, 2014-Dipen Sinha of Los Alamos National Laboratory's Materials Synthesis and Integrated Devices group will discuss acoustics and its applications, including how it is possible to use sound to solve problems in health, national security and for industry, in a series of Frontiers in Science Lectures beginning July 29 at Crossroads

  6. LOS ALAMOS, N.M., June 18, 2014-Los Alamos National Laboratory today

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    Fukushima with cosmic rays should speed cleanup June 18, 2014 Los Alamos to partner with Toshiba to remotely and safely peer inside nuclear reactors LOS ALAMOS, N.M., June 18, 2014-Los Alamos National Laboratory today announced an impending partnership with Toshiba Corporation to use a Los Alamos technique called muon tomography to safely peer inside the cores of the Fukushima Daiichi reactors and create high-resolution images of the damaged nuclear material inside without ever breaching the

  7. LOS ALAMOS, N.M., June 21, 2016-Two Los Alamos National Laboratory projects

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    energy technology projects from Los Alamos gain DOE funding June 21, 2016 Groundwater restoration and fractured rock insights supported LOS ALAMOS, N.M., June 21, 2016-Two Los Alamos National Laboratory projects are among technologies supported in today's U.S. Department of Energy (DOE) announcement of nearly $16 million in funding to help businesses move promising energy technologies from DOE's National Laboratories to the marketplace. "Los Alamos research expands the options for energy

  8. LOS ALAMOS, N.M., June 24, 2015-Scientists at Los Alamos National Laboratory

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    ocean mixing reveals insight on climate June 24, 2015 Eddies pull carbon emissions into deep ocean, new model simulates complex process LOS ALAMOS, N.M., June 24, 2015-Scientists at Los Alamos National Laboratory have developed a computer model that clarifies the complex processes driving ocean mixing in the vast eddies that swirl across hundreds of miles of open ocean. "The model enables us to study the important processes of ocean storms, which move heat and carbon from the atmosphere

  9. LOS ALAMOS, N.M., March 24, 2015-Los Alamos National Laboratory mechanical

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    computer simulation improves offshore drill rig safety March 24, 2015 LOS ALAMOS, N.M., March 24, 2015-Los Alamos National Laboratory mechanical and thermal engineering researchers' efforts to solve the complex problem of how ocean currents affect the infrastructure of floating oilrigs and their computational fluid dynamics (CFD) numerical simulations received recognition from ANSYS Inc., a company that provides computer-based engineering simulation capabilities."Because energy resources

  10. LOS ALAMOS, N.M., May 13, 2013-Today, Los Alamos National Laboratory

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    Domestic production of medical isotope Mo-99 moves a step closer May 13, 2013 Los Alamos team produces molybdenum-99 from irradiation of low enriched uranium solution LOS ALAMOS, N.M., May 13, 2013-Today, Los Alamos National Laboratory announced that for the first time, irradiated low-enriched uranium (LEU) fuel has been recycled and reused for molybdenum-99 (Mo-99) production, with virtually no losses in Mo-99 yields or uranium recovery. This demonstrates the viability of the separation

  11. LOS ALAMOS, N.M., May 22, 2013-Los Alamos National Laboratory's Bradbury

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    partnering in national Blue Star Museums program May 22, 2013 Free admission for active duty military, their family members LOS ALAMOS, N.M., May 22, 2013-Los Alamos National Laboratory's Bradbury Science Museum is again partnering with the National Endowment for the Arts, Blue Star Families Foundation and the Department of Defense in the Blue Star Museums program to host active duty military personnel and their families from Memorial Day, May 27, through Labor Day, Sept. 2. "In this the

  12. LOS ALAMOS, N.M., Nov. 10, 2015-Two Los Alamos National Laboratory employees

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    Helping New Mexico small businesses earns recognition for Los Alamos National Lab employees November 10, 2015 Program provides access to technical expertise and laboratory capabilities LOS ALAMOS, N.M., Nov. 10, 2015-Two Los Alamos National Laboratory employees were recently recognized in an awards ceremony for providing their technical expertise and access to lab capabilities to help small businesses through the New Mexico Small Business Assistance Program. Don Quintana, a group leader within

  13. LOS ALAMOS, N.M., Nov. 19, 2013-Researchers at Los Alamos National Laboratory

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    virus spread and evolution studied through computer modeling November 19, 2013 LOS ALAMOS, N.M., Nov. 19, 2013-Researchers at Los Alamos National Laboratory are investigating the complex relationships between the spread of the HIV virus in a population (epidemiology) and the actual, rapid evolution of the virus (phylogenetics) within each patient's body. "We have developed novel ways of estimating epidemics dynamics such as who infected whom, and the true population incidence of infection

  14. LOS ALAMOS, N.M., Oct. 26, 2015-Scientists from Los Alamos National Laboratory,

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    Nanoscale, multidimensional artificial magnet created October 26, 2015 Embargoed for 10 a.m. Mountain, Oct. 26, 2015 Tiny magnets could work in sensors, information encoding LOS ALAMOS, N.M., Oct. 26, 2015-Scientists from Los Alamos National Laboratory, in collaboration with a group at the University of Illinois at Urbana-Champaign, the Lawrence Berkeley National Laboratory's Advanced Light Source and with other researchers nationwide, have realized a nanoscale, artificial magnet by arranging an

  15. LOS ALAMOS, N.M., October 9, 2012-Researchers at Los Alamos National

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    crystallography aids drug design October 9, 2012 Precisely tailored pharmaceuticals could reduce medical side effects LOS ALAMOS, N.M., October 9, 2012-Researchers at Los Alamos National Laboratory have used neutron crystallography for the first time to determine the structure of a clinical drug in complex with its human target enzyme. Seeing the detailed structure of the bonded components provides insights into developing more effective drugs with fewer side effects for patients. The atomic

  16. LOS ALAMOS, N.M., Aug. 24, 2016-Nine Los Alamos National Laboratory innovations

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    impact innovations honored as R&D 100 Award finalists August 24, 2016 Nine technologies offer breakthroughs in energy, computing, cybersecurity, health, materials and particle accelerators LOS ALAMOS, N.M., Aug. 24, 2016-Nine Los Alamos National Laboratory innovations were selected as finalists for the 2016 R&D 100 Awards, which honor the top 100 proven technological advances of the past year as determined by a panel selected by R&D Magazine. The finalists, with projects covering

  17. Change LOS ALAMOS, N.M., May 19, 2015-Researchers at Los Alamos National Laboratory

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    Drought-induced tree mortality accelerating in forests May 19, 2015 Los Alamos' paper published in Nature Climate Change LOS ALAMOS, N.M., May 19, 2015-Researchers at Los Alamos National Laboratory have found that drought and heat-induced tree mortality is accelerating in many forest biomes as a consequence of a warming climate in their paper "Darcy's law predicts widespread forest mortality under climate warming," published in the journal Nature Climate Change. "The warming

  18. New Zone Plate for Soft X-Ray Microscopy at 15-nm Spatial Resolution

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    New Zone Plate for Soft X-Ray Microscopy at 15-nm Spatial Resolution Print Analytical tools that combine spatial resolution with elemental and chemical identification at the nanometer scale along with large penetration depth are indispensable for the life and physical sciences. The XM-1 soft x-ray microscope at the ALS produces images that not only reveal structures but can identify their chemical elements and measure magnetic and other properties as well. Now a new method for creating optical

  19. New Zone Plate for Soft X-Ray Microscopy at 15-nm Spatial Resolution

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    New Zone Plate for Soft X-Ray Microscopy at 15-nm Spatial Resolution Print Analytical tools that combine spatial resolution with elemental and chemical identification at the nanometer scale along with large penetration depth are indispensable for the life and physical sciences. The XM-1 soft x-ray microscope at the ALS produces images that not only reveal structures but can identify their chemical elements and measure magnetic and other properties as well. Now a new method for creating optical

  20. DOE Zero Energy Ready Home Case Study 2013: Palo Duro Homes, Inc., Albuquerque, NM

    Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

    Palo Duro Homes, Inc. Albuquerque, NM BUILDING TECHNOLOGIES OFFICE The U.S. Department of Energy invites home builders across the country to meet the extraordinary levels of excellence and quality specifi ed in DOE's Zero Energy Ready Home program (formerly known as Challenge Home). Every DOE Zero Energy Ready Home starts with ENERGY STAR for Homes Version 3 for an energy-effi cient home built on a solid foundation of building science research. Advanced technologies are designed in to give you

  1. Effects of amines on formation of sub-3 nm particles and their subsequent growth

    SciTech Connect (OSTI)

    Yu H.; McGraw R.; Lee S.-H.

    2012-01-28

    Field observations and quantum chemical calculations suggest that amines can be important for formation of nanometer size particles. Amines and ammonia often have common atmospheric emission sources and the similar chemical and physical properties. While the effects of ammonia on aerosol nucleation have been previously investigated, laboratory studies of homogeneous nucleation involving amines are lacking. We have made kinetics studies of multicomponent nucleation (MCN) with sulfuric acid, water, ammonia and amines under conditions relevant to the atmosphere. Low concentrations of aerosol precursors were measured with chemical ionization mass spectrometers (CIMS) to provide constrained precursor concentrations needed for nucleation. Particle sizes larger than {approx}2 nm were measured with a nano-differential mobility analyzer (nano-DMA), and number concentrations of particles larger than {approx}1 nm were measured with a particle size magnifier (PSM). Our observations provide the laboratory evidence that amines indeed can participate in aerosol nucleation and growth at the molecular cluster level. The enhancement of particle number concentrations due to several atmospherically relevant amine compounds and ammonia were related to the basicity of these compounds, indicating that acid-base reactions may contribute to the formation of sub-3 nm particles.

  2. Size dependent compressibility of nano-ceria: Minimum near 33 nm

    SciTech Connect (OSTI)

    Rodenbough, Philip P.; Song, Junhua; Chan, Siu-Wai; Walker, David; Clark, Simon M.; Kalkan, Bora

    2015-04-20

    We report the crystallite-size-dependency of the compressibility of nanoceria under hydrostatic pressure for a wide variety of crystallite diameters and comment on the size-based trends indicating an extremum near 33 nm. Uniform nano-crystals of ceria were synthesized by basic precipitation from cerium (III) nitrate. Size-control was achieved by adjusting mixing time and, for larger particles, a subsequent annealing temperature. The nano-crystals were characterized by transmission electron microscopy and standard ambient x-ray diffraction (XRD). Compressibility, or its reciprocal, bulk modulus, was measured with high-pressure XRD at LBL-ALS, using helium, neon, or argon as the pressure-transmitting medium for all samples. As crystallite size decreased below 100 nm, the bulk modulus first increased, and then decreased, achieving a maximum near a crystallite diameter of 33 nm. We review earlier work and examine several possible explanations for the peaking of bulk modulus at an intermediate crystallite size.

  3. Scientists to Meet in Carlsbad, NM for Hard Rock Lab Task Force

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    Scientists From Nine Countries to Converge On Carlsbad for Technical Meeting CARLSBAD, N.M., February 7, 2000 - Scientists from nine countries will converge on this southeastern New Mexico city February 7-10 to share their views during the 13 th Äspö Hard Rock Laboratory Task Force Meeting on Modelling of Groundwater Flow and Transport of Solutes. "Carlsbad is quickly becoming recognized as the international center for repository technology," said Dr. Inés Triay, manager of the U.S.

  4. Other Locales W. Clements Los Alamos National Laboratory Los Alamos, NM 87545

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    W. Clements Los Alamos National Laboratory Los Alamos, NM 87545 T. Ackerman Pennsylvania State University University Park, PA 16802 D. Renne National Renewable Energy Laboratory Golden, CO 80401-3393 The Tropical Western Pacific Locale 100 S to 100 N of the equator and from 1300 E to the dateline. Phased implementation is scheduled to begin in late 1993. The main activity of the TWP project in the next year is to define the particular science to be conducted and to select an appropriate site or

  5. LOS ALAMOS, N.M., Aug. 21, 2013-The High-Altitude Water Cherenkov (HAWC)

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    gamma-ray observatory begins operations at Sierra Negra volcano in the state of Puebla, Mexico August 21, 2013 New site to observe supernovas and supermassive black holes LOS ALAMOS, N.M., Aug. 21, 2013-The High-Altitude Water Cherenkov (HAWC) Gamma Ray Observatory has begun formal operations at its site in Mexico. HAWC is designed to study the origin of very high-energy cosmic rays and observe the most energetic objects in the known universe. This extraordinary observatory, using a unique

  6. LOS ALAMOS, N.M., August 7, 2013-Los Alamos National Laboratory scientist

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    Lab's Frontiers in Science lectures focus on epigenetics August 7, 2013 Is behavior hardwired by DNA or a product of environment? LOS ALAMOS, N.M., August 7, 2013-Los Alamos National Laboratory scientist Karissa Sanbonmatsu, will discuss epigenetics in a series of Frontiers in Science lectures beginning Tuesday, Aug. 13, at the New Mexico Museum of Natural History and Science in Albuquerque. The 7 p.m. talk, titled "Nature, Nurture or Neither: The New Science of Epigenetics," focuses

  7. LOS ALAMOS, N.M., Dec. 14, 2015-Los Alamos National Laboratory's portable

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    named Top 10 Breakthrough of 2015 by Physics World magazine December 20, 2015 LOS ALAMOS, N.M., Dec. 14, 2015-Los Alamos National Laboratory's portable MRI was named one of the Top 10 Breakthroughs of the Year by Physics World, the member magazine of the Institute of Physics. Portable MRI, also called Battlefield MRI (bMRI), uses ultra-low-field magnetic resonance imaging to create images of injured soft tissues, such as the brain. "Hospital-based MRI devices are big and expensive,"

  8. LOS ALAMOS, N.M., January 15, 2013-Researchers from Los Alamos National

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    follows the 'Yellowknife Road' to Martian wet area January 15, 2013 Instrument confirms presence of gypsum and related minerals LOS ALAMOS, N.M., January 15, 2013-Researchers from Los Alamos National Laboratory and the French Space Agency have tracked a trail of minerals that point to the prior presence of water at the Curiosity rover site on Mars. Researchers from the Mars Science Laboratory's ChemCam team today described how the laser instrument aboard the Curiosity Rover-an SUV-sized vehicle

  9. LOS ALAMOS, N.M., July 12, 2013 - Los Alamos National Laboratory Director

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    Importance of science education to national security will be Los Alamos director's topic at TEDxABQ July 12, 2013 Importance of science education to national security will be Los Alamos director's topic at TEDxABQ LOS ALAMOS, N.M., July 12, 2013 - Los Alamos National Laboratory Director Charlie McMillan will be one of 17 speakers at this year's TEDxABQ, event organizers announced this week. TEDxABQ, scheduled for Saturday, September 7 at Popejoy Hall, is an independently organized event in

  10. LOS ALAMOS, N.M., July 27, 2015- Four Los Alamos National Laboratory projects

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    Los Alamos projects selected as R&D 100 Award finalists July 27, 2015 LOS ALAMOS, N.M., July 27, 2015- Four Los Alamos National Laboratory projects have been selected as finalists for the 2015 R&D 100 awards, which honor the top 100 proven technological advances of the past year as determined by a panel selected by R&D Magazine. The Los Alamos finalists are: LARS: Lab-scale Asynchronous Radiographic System, PipeLIBS: A Self-Contained Elemental Analysis Tool for the Oil Industry,

  11. LOS ALAMOS, N.M., March 18, 2015-Scientists at Los Alamos National Laboratory

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    creates bioinformatics tool for metagenome analysis March 18, 2015 'GOTTCHA' tool could aid ID of co-infections in medical samples LOS ALAMOS, N.M., March 18, 2015-Scientists at Los Alamos National Laboratory have developed a new method for DNA analysis of microbial communities such as those found in the ocean, the soil, and our own guts. "Metagenomics is the study of entire microbial communities using genomics, such as when you sequence the DNA of a whole community of organisms at

  12. LOS ALAMOS, N.M., March 31, 2014-Los Alamos National Laboratory climate

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    Forests and climate change focus of Frontiers in Science lectures March 31, 2014 It's not easy staying green... LOS ALAMOS, N.M., March 31, 2014-Los Alamos National Laboratory climate researcher Nate McDowell will discuss climate change and its effects on forest systems in a series of Frontiers in Science lectures beginning Wednesday, April 2 at the New Mexico Museum of Natural History and Science in Albuquerque. "The data we have suggests that forests of the Southwest and many other areas

  13. LOS ALAMOS, N.M., Nov. 3, 2015-Nina Lanza, of Los Alamos National Laboratory's

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    Hunting for meteorites in Antarctica November 3, 2015 Los Alamos scientist part of NASA's select few LOS ALAMOS, N.M., Nov. 3, 2015-Nina Lanza, of Los Alamos National Laboratory's Space and Remote Sensing group, was selected as one of eight members for the 2015-2016 field campaign of the Antarctica Search for Meteorites (ANSMET) program, which is supported by NASA. "These meteorites can help us understand the formation and evolution of our solar system," said Lanza. "They come

  14. LOS ALAMOS, N.M., Oct. 22, 2015-Los Alamos National Laboratory explosives

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    Rings of Fire: New explosives provide enhanced safety, high energy October 22, 2015 LOS ALAMOS, N.M., Oct. 22, 2015-Los Alamos National Laboratory explosives chemist David Chavez has synthesized a pair of novel molecules, one possessing a unique fused three-ring structure. These materials could usher in a new class of explosives that provide high-energy output with enhanced safety. "There is a general trend that the higher the performance of an energetic material, the more sensitive the

  15. LOS ALAMOS, N.M., Oct. 23, 2014-Los Alamos National Laboratory scientists

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    rocket design flight tested October 23, 2014 New rocket propellant and motor design offers high performance and safety LOS ALAMOS, N.M., Oct. 23, 2014-Los Alamos National Laboratory scientists recently flight tested a new rocket design that includes a high-energy fuel and a motor design that also delivers a high degree of safety. "What we're trying to do is break the performance versus sensitivity curve, and make a rocket that's both very high-energy, as well as very safe," said Bryce

  16. LOS ALAMOS, N.M., Oct. 31, 2013-Los Alamos National Laboratory scientist

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    Matter, antimatter and surviving the big bang is topic of Lab's next Frontiers in Science lecture October 31, 2013 Talk begins at 7 p.m. and open to public LOS ALAMOS, N.M., Oct. 31, 2013-Los Alamos National Laboratory scientist Vincenzo Cirigliano asks the question, How did we survive the big bang? in a series of Frontiers in Science lectures beginning Monday, Nov. 4, in the Duane Smith Auditorium at Los Alamos High School. "Particles and antiparticles were produced in equal numbers in the

  17. LOS ALAMOS, N.M., Sept. 17, 2015-Scientists at Los Alamos National Laboratory

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    insights into HIV-1 vaccine design September 17, 2015 Los Alamos researchers model alternate ideas for an HIV vaccine LOS ALAMOS, N.M., Sept. 17, 2015-Scientists at Los Alamos National Laboratory have created a computational model that could change the way that researchers look at possibilities for an HIV-1 vaccine. "An effective HIV-1 vaccine has proven elusive, partly due to the difficulty of causing an immune response that can neutralize the diverse viral strains circulating in the human

  18. Poly(ethylene terephthalate) surface modification by deep UV (172 nm) irradiation

    SciTech Connect (OSTI)

    Zhengmao Zhua; Michael J. Kelley

    2004-09-01

    The prospects of obtaining desired surface-mediated characteristics while retaining bulk-mediated physical properties and avoiding potential environmental issues with wet chemical technology lends considerable appeal to photochemical approaches. We investigated the response of poly(ethylene terephthalate) to 172 nm UV from a xenon excimer lamp in the absence of oxygen, using XPS, ToF/SIMS, and AFM. The main effects are increasing loss of a C=O moiety and carboxylic acid production without effect on topography up to a total fluence of 16 J/cm2. Above this level no further change in surface chemistry was evident, but surfaces became rougher, suggesting the onset of etching.

  19. 1-nm-thick graphene tri-layer as the ultimate copper diffusion barrier

    SciTech Connect (OSTI)

    Nguyen, Ba-Son [Department of Mechanical Engineering, National Cheng Kung University, 1 University Road, Tainan 701, Taiwan (China); Lin, Jen-Fin [Department of Mechanical Engineering, National Cheng Kung University, 1 University Road, Tainan 701, Taiwan (China); Center for Micro/Nano Science and Technology, National Cheng Kung University, 1 University Road, Tainan 701, Taiwan (China); Perng, Dung-Ching, E-mail: dcperng@ee.ncku.edu.tw [Institute of Microelectronics and Electrical Engineering Department, National Cheng Kung University, 1 University Road, Tainan 701, Taiwan (China); Center for Micro/Nano Science and Technology, National Cheng Kung University, 1 University Road, Tainan 701, Taiwan (China)

    2014-02-24

    We demonstrate the thinnest ever reported Cu diffusion barrier, a 1-nm-thick graphene tri-layer. X-ray diffraction patterns and Raman spectra show that the graphene is thermally stable at up to 750?C against Cu diffusion. Transmission electron microscopy images show that there was no inter-diffusion in the Cu/graphene/Si structure. Raman analyses indicate that the graphene may have degraded into a nanocrystalline structure at 750?C. At 800?C, the perfect carbon structure was damaged, and thus the barrier failed. The results of this study suggest that graphene could be the ultimate Cu interconnect diffusion barrier.

  20. Damage thresholds of thin film materials and high reflectors at 248 nm

    SciTech Connect (OSTI)

    Rainer, F.; Lowdermilk, W.H.; Milam, D.; Carniglia, C.K.; Hart, T.T.; Lichtenstein, T.L.

    1982-01-01

    Twenty-ns, 248-nm KrF laser pulses were used to measure laser damage thresholds for halfwave-thick layers of 15 oxide and fluoride coating materials, and for high reflectance coatings made with 13 combinations of these materials. The damage thresholds of the reflectors and single-layer films were compared to measurements of several properties of the halfwave-thick films to determine whether measurements of these properties of single-layer films to determine whether measurements of these properties of single-layer films were useful for identifying materials for fabrication of damage resistant coatings.

  1. Picosecond 14.7 nm interferometry of high intensity laser-produced plasmas

    SciTech Connect (OSTI)

    Dunn, J; Filevich, J; Smith, R F; Moon, S J; Rocca, J J; Keenan, R; Nilsen, J; Shlyaptsev, V N; Hunter, J R; Ng, A; Marconi, M C

    2004-10-14

    We have developed a compact, 14.7 nm, sub-5 ps x-ray laser source at LLNL together with a Mach-Zehnder type Diffraction Grating Interferometer built at Colorado State University for probing dense, high intensity laser-produced plasmas. The short wavelength and pulse length of the probe reduces refraction and absorption effects within the plasma and minimizes plasma motion blurring. This unique diagnostic capability gives precise 2-D density profile snapshots and is generating new data for rapidly evolving laser-heated plasmas. A review of the results from dense, mm-scale line focus plasma experiments will be described with detailed comparisons to hydrodynamic simulations.

  2. CY08 SNL_NM ASER_8_10_09.indb

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    //IA * .~ r'fIA \b1i Sandia Site Office ///IV&.~~~ National Nuclear Security Administration P.o. Box 5400 Albuquerque, New Mexico 87185-5400 AUG 262009 To Distribution: Enclosed is a copy of the Calendar Year (CY) 2008 Annual Site Environmental Report for the U. S. Department of Energy (DOE), National Nuclear Security Administration (NNSA), Sandia National Laboratories/Nev..: rV:iexico (SNL/NM) for your use as appropriate. This report has recently been approved for public distribution. The

  3. Nonlinear bleaching, absorption, and scattering of 532-nm-irradiated plasmonic nanoparticles

    SciTech Connect (OSTI)

    Liberman, V.; Sworin, M.; Kingsborough, R. P.; Geurtsen, G. P.; Rothschild, M.

    2013-02-07

    Single-pulse irradiation of Au and Ag suspensions of nanospheres and nanodisks with 532-nm 4-ns pulses has identified complex optical nonlinearities while minimizing material damage. For all materials tested, we observe competition between saturable absorption (SA) and reverse SA (RSA), with RSA behavior dominating for intensities above {approx}50 MW/cm{sup 2}. Due to reduced laser damage in single-pulse experiments, the observed intrinsic nonlinear absorption coefficients are the highest reported to date for Au nanoparticles. We find size dependence to the nonlinear absorption enhancement for Au nanoparticles, peaking in magnitude for 80-nm nanospheres and falling off at larger sizes. The nonlinear absorption coefficients for Au and Ag spheres are comparable in magnitude. On the other hand, the nonlinear absorption for Ag disks, when corrected for volume fraction, is several times higher. These trends in nonlinear absorption are correlated to local electric field enhancement through quasi-static mean-field theory. Through variable size aperture measurements, we also separate nonlinear scattering from nonlinear absorption. For all materials tested, we find that nonlinear scattering is highly directional and that its magnitude is comparable to that of nonlinear absorption. These results indicate methods to improve the efficacy of plasmonic nanoparticles as optical limiters in pulsed laser systems.

  4. Quantum yield for carbon monoxide production in the 248 nm photodissociation of carbonyl sulfide (OCS)

    SciTech Connect (OSTI)

    Zhao, Z.; Stickel, R.E.; Wine, P.H. [Georgia Institute of Technology, Atlanta, GA (United States)] [Georgia Institute of Technology, Atlanta, GA (United States)

    1995-03-01

    Tunable diode laser absorption spectroscopy has been coupled with excimer laser flash photolysis to measure the quantum yield for CO production from 248 nm photodissociation of carbonyl sulfide (OCS) relative to the well known quantum yield for CO production from 248 nm photolysis of phosgene (Cl{sub 2}CO). The temporal resolution of the experiments was sufficient to distinguish CO formed directly by photodissociation from that formed by subsequent S({sup 3}P{sub j}) reaction with OCS. Under the experimental conditions employed, CO formation via the fast S({sup 1}D{sub 2})+OCS reaction was minimal. Measurements at 297K and total pressures from 4 to 100 Torr N{sub 2}+N{sub 2}O show the CO yield to be greater than 0.95 and most likely unity. This result suggests that the contribution of OCS as a precursor to the lower stratospheric sulfate aerosol layer is somewhat larger than previously thought. 25 refs., 1 fig., 2 tabs.

  5. Noise behavior of a 180-nm CMOS SOI technology for detector front-end electronics

    SciTech Connect (OSTI)

    Re, Valerio; Gaioni, Luigi; Manghisoni, Massimo; Ratti, Lodovico; Speziali, Valeria; Traversi, Gianluca; Yarema, Ray; /Fermilab

    2008-01-01

    This paper is motivated by the growing interest of the detector and readout electronics community towards silicon-on-insulator CMOS processes. Advanced SOI MOSFETs feature peculiar electrical characteristics impacting their performance with respect to bulk CMOS devices. Here we mainly focus on the study of these effects on the noise parameters of the transistors, using experimental data relevant to 180 nm fully depleted SOI devices as a reference. The comparison in terms of white and 1/f noise components with bulk MOSFETs with the same minimum feature size gives a basis of estimate for the signal-to-noise ratio achievable in detector front-end integrated circuits designed in an SOI technology.

  6. Time and spectrum-resolving multiphoton correlator for 300900 nm

    SciTech Connect (OSTI)

    Johnsen, Kelsey D.; Thibault, Marilyne; Jennewein, Thomas; Kolenderski, Piotr; Scarcella, Carmelo; Tosi, Alberto

    2014-10-14

    We demonstrate a single-photon sensitive spectrometer in the visible range, which allows us to perform time-resolved and multi-photon spectral correlation measurements at room temperature. It is based on a monochromator composed of two gratings, collimation optics, and an array of single photon avalanche diodes. The time resolution can reach 110 ps and the spectral resolution is 2 nm/pixel, limited by the design of the monochromator. This technique can easily be combined with commercial monochromators and can be useful for joint spectrum measurements of two photons emitted in the process of parametric down conversion, as well as time-resolved spectrum measurements in optical coherence tomography or medical physics applications.

  7. 1.5 nm fabrication of test patterns for characterization of metrological systems

    DOE Public Access Gateway for Energy & Science Beta (PAGES Beta)

    Babin, Sergey; Calafiore, Giuseppe; Peroz, Christophe; Conley, Raymond; Bouet, Nathalie; Cabrini, Stefano; Chan, Elaine; Lacey, Ian; McKinney, Wayne R.; Yashchuk, Valeriy V.; et al

    2015-11-06

    Any metrology tool is only as good as it is calibrated. The characterization of metrology systems requires test patterns at a scale about ten times smaller than the measured features. The fabrication of patterns with linewidths down to 1.5 nm is described. The test sample was designed in such a way that the distribution of linewidths appears to be random at any location. This pseudorandom test pattern is used to characterize dimensional metrology equipment over its entire dynamic range by extracting the modulation transfer function of the system. The test pattern contains alternating lines of silicon and tungsten silicide, eachmore » according to its designed width. As a result, the fabricated test samples were imaged using a transmission electron microscope, a scanning electron microscope, and an atomic force microscope. (C) 2015 American Vacuum Society.« less

  8. 1.5 nm fabrication of test patterns for characterization of metrological systems

    SciTech Connect (OSTI)

    Babin, Sergey; Calafiore, Giuseppe; Peroz, Christophe; Conley, Raymond; Bouet, Nathalie; Cabrini, Stefano; Chan, Elaine; Lacey, Ian; McKinney, Wayne R.; Yashchuk, Valeriy V.; Vladar, Andras E.

    2015-11-06

    Any metrology tool is only as good as it is calibrated. The characterization of metrology systems requires test patterns at a scale about ten times smaller than the measured features. The fabrication of patterns with linewidths down to 1.5 nm is described. The test sample was designed in such a way that the distribution of linewidths appears to be random at any location. This pseudorandom test pattern is used to characterize dimensional metrology equipment over its entire dynamic range by extracting the modulation transfer function of the system. The test pattern contains alternating lines of silicon and tungsten silicide, each according to its designed width. As a result, the fabricated test samples were imaged using a transmission electron microscope, a scanning electron microscope, and an atomic force microscope. (C) 2015 American Vacuum Society.

  9. Ion generation and CPC detection efficiency studies in sub 3-nm size range

    SciTech Connect (OSTI)

    Kangasluoma, J.; Junninen, H.; Sipilae, M.; Kulmala, M.; Petaejae, T.; Lehtipalo, K.; Mikkilae, J.; Vanhanen, J.; Attoui, M.; Worsnop, D.

    2013-05-24

    We studied the chemical composition of commonly used condensation particle counter calibration ions with a mass spectrometer and found that in our calibration setup the negatively charged ammonium sulphate, sodium chloride and tungsten oxide are the least contaminated whereas silver on both positive and negative and the three mentioned earlier in positive mode are contaminated with organics. We report cut-off diameters for Airmodus Particle Size Magnifier (PSM) 1.1, 1.3, 1.4, 1.6 and 1.6-1.8 nm for negative sodium chloride, ammonium sulphate, tungsten oxide, silver and positive organics, respectively. To study the effect of sample relative humidity on detection efficiency of the PSM we used different humidities in the differential mobility analyzer sheath flow and found that with increasing relative humidity also the detection efficiency of the PSM increases.

  10. Wavelength and Intensity Dependence of Short Pulse Laser Xenon Double Ionization between 500 and 2300 nm

    SciTech Connect (OSTI)

    Gingras, G.; Tripathi, A.; Witzel, B.

    2009-10-23

    The wavelength and intensity dependence of xenon ionization with 50 fs laser pulses has been studied using time-of-flight mass spectrometry. We compare the ion yield distribution of singly and doubly charged xenon with the Perelomov-Popov-Terent'ev (PPT) theory, Perelomov, Popov, and Terent'ev, Zh. Eksp. Teor. Fiz. 50, 1393 (1966) [Sov. Phys. JETP 23, 924 (1966)], in the regime between 500 and 2300 nm. The intensity dependence for each wavelength is measured in a range between 1x10{sup 13} and 1x10{sup 15} W/cm{sup 2}. The Xe{sup +}-ion signal is in good agreement with the PPT theory at all used wavelengths. In addition we demonstrate that ionic 5s5p{sup 6} {sup 2}S state is excited by an electron impact excitation process and contributes to the nonsequential double ionization process.

  11. High power terahertz generation using 1550 nm plasmonic photomixers

    SciTech Connect (OSTI)

    Berry, Christopher W.; Hashemi, Mohammad R.; Jarrahi, Mona; Preu, Sascha; Lu, Hong; Gossard, Arthur C.

    2014-07-07

    We present a 1550 nm plasmonic photomixer operating under pumping duty cycles below 10%, which offers significantly higher terahertz radiation power levels compared to previously demonstrated photomixers. The record-high terahertz radiation powers are enabled by enhancing the device quantum efficiency through use of plasmonic contact electrodes, and by mitigating thermal breakdown at high optical pump power levels through use of a low duty cycle optical pump. The repetition rate of the optical pump can be specifically selected at a given pump duty cycle to control the spectral linewidth of the generated terahertz radiation. At an average optical pump power of 150 mW with a pump modulation frequency of 1 MHz and pump duty cycle of 2%, we demonstrate up to 0.8 mW radiation power at 1 THz, within each continuous wave radiation cycle.

  12. Final report on LDRD project : single-photon-sensitive imaging detector arrays at 1600 nm.

    SciTech Connect (OSTI)

    Childs, Kenton David; Serkland, Darwin Keith; Geib, Kent Martin; Hawkins, Samuel D.; Carroll, Malcolm S.; Klem, John Frederick; Sheng, Josephine Juin-Jye; Patel, Rupal K.; Bolles, Desta; Bauer, Tom M.; Koudelka, Robert

    2006-11-01

    The key need that this project has addressed is a short-wave infrared light detector for ranging (LIDAR) imaging at temperatures greater than 100K, as desired by nonproliferation and work for other customers. Several novel device structures to improve avalanche photodiodes (APDs) were fabricated to achieve the desired APD performance. A primary challenge to achieving high sensitivity APDs at 1550 nm is that the small band-gap materials (e.g., InGaAs or Ge) necessary to detect low-energy photons exhibit higher dark counts and higher multiplication noise compared to materials like silicon. To overcome these historical problems APDs were designed and fabricated using separate absorption and multiplication (SAM) regions. The absorption regions used (InGaAs or Ge) to leverage these materials 1550 nm sensitivity. Geiger mode detection was chosen to circumvent gain noise issues in the III-V and Ge multiplication regions, while a novel Ge/Si device was built to examine the utility of transferring photoelectrons in a silicon multiplication region. Silicon is known to have very good analog and GM multiplication properties. The proposed devices represented a high-risk for high-reward approach. Therefore one primary goal of this work was to experimentally resolve uncertainty about the novel APD structures. This work specifically examined three different designs. An InGaAs/InAlAs Geiger mode (GM) structure was proposed for the superior multiplication properties of the InAlAs. The hypothesis to be tested in this structure was whether InAlAs really presented an advantage in GM. A Ge/Si SAM was proposed representing the best possible multiplication material (i.e., silicon), however, significant uncertainty existed about both the Ge material quality and the ability to transfer photoelectrons across the Ge/Si interface. Finally a third pure germanium GM structure was proposed because bulk germanium has been reported to have better dark count properties. However, significant

  13. Structural distortions in 5-10 nm silver nanoparticles under high pressure

    SciTech Connect (OSTI)

    Koski, Kristie J.; Kamp, Noelle M.; Kunz, Martin; Knight, Jason K.; Alivisatos, A.P.; Smith, R.K.

    2008-10-13

    We present experimental evidence that silver nanoparticles in the size range of 5-10 nm undergo a reversible structural transformation under hydrostatic pressures up to 10 GPa. We have used x-ray diffraction with a synchrotron light source to investigate pressure-dependent and size-dependent trends in the crystal structure of silver nanoparticles in a hydrostatic medium compressed in a diamond-anvil cell. Results suggest a reversible linear pressure-dependent rhombohedral distortion which has not been previously observed in bulk silver. We propose a mechanism for this transition that considers the bond-length distribution in idealized multiply twinned icosahedral particles. To further support this hypothesis, we also show that similar measurements of single-crystal platinum nanoparticles reveal no such distortions.

  14. Dense wavelength multiplexing of 1550 nm QKD with strong classical channels in reconfigurable networking environments

    SciTech Connect (OSTI)

    Rosenberg, Danna; Peterson, Charles G; Dallmann, Nicholas; Hughes, Richard J; Mccabe, Kevin P; Nordholt, Jane E; Tyagi, Hush T; Peters, Nicholas A; Toliver, Paul; Chapman, Thomas E; Runser, Robert J; Mcnown, Scott R

    2008-01-01

    To move beyond dedicated links and networks, quantum communications signals must be integrated into networks carrying classical optical channels at power levels many orders of magnitude higher than the quantum signals themselves. We demonstrate transmission of a 1550-nm quantum channel with up to two simultaneous 200-GHz spaced classical telecom channels, using ROADM (reconfigurable optical <1dd drop multiplexer) technology for multiplexing and routing quantum and classical signals. The quantum channel is used to perform quantum key distribution (QKD) in the presence of noise generated as a by-product of the co-propagation of classical channels. We demonstrate that the dominant noise mechanism can arise from either four-wave mixing or spontaneous Raman scattering, depending on the optical path characteristics as well <1S the classical channel parameters. We quantity these impairments and discuss mitigation strategies.

  15. Sub-50 nm metrology on extreme ultra violet chemically amplified resist—A systematic assessment

    SciTech Connect (OSTI)

    Maas, D. J. Herfst, R.; Veldhoven, E. van; Fliervoet, T.; Meessen, J.; Vaenkatesan, V.; Sadeghian, H.

    2015-10-15

    With lithographic patterning dimensions decreasing well below 50 nm, it is of high importance to understand metrology at such small scales. This paper presents results obtained from dense arrays of contact holes (CHs) with various Critical Dimension (CD) between 15 and 50 nm, as patterned in a chemically amplified resist using an ASML EUV scanner and measured at ASML and TNO. To determine the differences between various (local) CD metrology techniques, we conducted an experiment using optical scatterometry, CD-Scanning Electron Microscopy (CD-SEM), Helium ion Microscopy (HIM), and Atomic Force Microscopy (AFM). CD-SEM requires advanced beam scan strategies to mitigate sample charging; the other tools did not need that. We discuss the observed main similarities and differences between the various techniques. To this end, we assessed the spatial frequency content in the raw images for SEM, HIM, and AFM. HIM and AFM resolve the highest spatial frequencies, which are attributed to the more localized probe-sample interaction for these techniques. Furthermore, the SEM, HIM, and AFM waveforms are analyzed in detail. All techniques show good mutual correlation, albeit the reported CD values systematically differ significantly. HIM systematically reports a 25% higher CD uniformity number than CD-SEM for the same arrays of CHs, probably because HIM has a higher resolution than the CD-SEM used in this assessment. A significant speed boost for HIM and AFM is required before these techniques are to serve the demanding industrial metrology applications like optical critical dimension and CD-SEM do nowadays.

  16. The photodissociation of oxetane at 193 nm as the reverse of the Paterno-Buchi reaction

    SciTech Connect (OSTI)

    Lee, Shih-Huang

    2009-12-14

    We investigated the photodissociation of oxetane (1,3-trimethylene oxide) at 193.3 nm in a molecular-beam apparatus using photofragment-translational spectroscopy and selective photoionization. We measured time-of-flight (TOF) spectra and angular anisotropy parameters {beta}(t) as a function of flight time of products at m/z=26-30 u utilizing photoionization energies from 9.8 to 14.8 eV. The TOF distributions of the products alter greatly with the employed photon energy, whereas their {beta}(t) distributions are insensitive to the photon energy. Dissociation to H{sub 2}CO+C{sub 2}H{sub 4} is the major channel in the title reaction. Three distinct dissociation paths with branching ratios 0.923:0.058:0.019 are responsible for the three features observed in the distribution of kinetic energy released in the channel H{sub 2}CO+C{sub 2}H{sub 4}. The observation of H{sub 2} and H atoms, {approx}1% in branching, indicates that products H{sub 2}CO and C{sub 2}H{sub 4} spontaneously decompose to only a small extent. Most HCO, C{sub 2}H{sub 3}, and C{sub 2}H{sub 2} ions originate from dissociative photoionization of products H{sub 2}CO and C{sub 2}H{sub 4}. Except atomic H and H{sub 2}, the photoproducts have large angular anisotropies, {beta}{>=}-0.8, which reflects rapid dissociation of oxetane following optical excitation at 193.3 nm. The mechanisms of dissociation of oxetane are addressed. Our results confirm the quantum-chemical calculations of Palmer et al. and provide profound insight into the Paterno-Buchi reaction.

  17. EA-1906: Operations, Consolidation, and Upgrades at the Office of Secure Transportation Western Command Site, Albuquerque, NM

    Office of Energy Efficiency and Renewable Energy (EERE)

    This EA evaluates environmental impacts associated with the siting and construction of several proposed buildings, including a new vehicle maintenance facility and mobile equipment maintenance building (and their support structures) at the Western Command Site, Albuquerque, NM.

  18. Multilayer X-ray mirrors for the (4.4-5)-nm carbon-window spectral region

    SciTech Connect (OSTI)

    Andreev, S. S.; Barysheva, M. M.; Vainer, Yu. A.; Gaikovich, P. K.; Pariev, D. E. Pestov, A. E.; Salashchenko, N. N.; Chkhalo, N. I.

    2013-05-15

    Cr/C-based multilayer X-ray mirrors intended for the reflection of X-ray radiation in the 'carbon-window' spectral region ({lambda} = 4.4-5 nm) are fabricated and studied. The structures are formed by magnetron sputtering at different deposition parameters. Under normal incidence, record reflection coefficients up to 15% are reached. The structural parameters of the mirrors are investigated by reflectometry at wavelengths of 0.154 and 4.47 nm.

  19. Stress-induced piezoelectric field in GaN-based 450-nm light-emitting diodes

    SciTech Connect (OSTI)

    Tawfik, Wael Z.; Hyeon, Gil Yong; Lee, June Key

    2014-10-28

    We investigated the influence of the built-in piezoelectric field induced by compressive stress on the characteristics of GaN-based 450-nm light-emitting diodes (LEDs) prepared on sapphire substrates of different thicknesses. As the sapphire substrate thickness was reduced, the compressive stress in the GaN layer was released, resulting in wafer bowing. The wafer bowing-induced mechanical stress altered the piezoelectric field, which in turn reduced the quantum confined Stark effect in the InGaN/GaN active region of the LED. The flat-band voltage was estimated by measuring the applied bias voltage that induced a 180° phase shift in the electro-reflectance (ER) spectrum. The piezoelectric field estimated by the ER spectra changed by ∼110 kV/cm. The electroluminescence spectral peak wavelength was blue-shifted, and the internal quantum efficiency was improved by about 22% at a high injection current of 100 mA. The LED on the 60-μm-thick sapphire substrate exhibited the highest light output power of ∼59 mW at an injection current of 100 mA, with the operating voltage unchanged.

  20. Multiplexed Oversampling Digitizer in 65 nm CMOS for Column-Parallel CCD Readout

    SciTech Connect (OSTI)

    Grace, Carl; Walder, Jean-Pierre; von der Lippe, Henrik

    2012-04-10

    A digitizer designed to read out column-parallel charge-coupled devices (CCDs) used for high-speed X-ray imaging is presented. The digitizer is included as part of the High-Speed Image Preprocessor with Oversampling (HIPPO) integrated circuit. The digitizer module comprises a multiplexed, oversampling, 12-bit, 80 MS/s pipelined Analog-to-Digital Converter (ADC) and a bank of four fast-settling sample-and-hold amplifiers to instrument four analog channels. The ADC multiplexes and oversamples to reduce its area to allow integration that is pitch-matched to the columns of the CCD. Novel design techniques are used to enable oversampling and multiplexing with a reduced power penalty. The ADC exhibits 188 ?V-rms noise which is less than 1 LSB at a 12-bit level. The prototype is implemented in a commercially available 65 nm CMOS process. The digitizer will lead to a proof-of-principle 2D 10 Gigapixel/s X-ray detector.

  1. Optical emission from a small scale model electric arc furnace in 250-600 nm region

    SciTech Connect (OSTI)

    Maekinen, A.; Tikkala, H.; Aksela, H.; Niskanen, J.

    2013-04-15

    Optical emission spectroscopy has been for long proposed for monitoring and studying industrial steel making processes. Whereas the radiative decay of thermal excitations is always taking place in high temperatures needed in steel production, one of the most promising environment for such studies are electric arc furnaces, creating plasma in excited electronic states that relax with intense characteristic emission in the optical regime. Unfortunately, large industrial scale electric arc furnaces also present a challenging environment for optical emission studies and application of the method is not straightforward. To study the usability of optical emission spectroscopy in real electric arc furnaces, we have developed a laboratory scale DC electric arc furnace presented in this paper. With the setup, optical emission spectra of Fe, Cr, Cr{sub 2}O{sub 3}, Ni, SiO{sub 2}, Al{sub 2}O{sub 3}, CaO, and MgO were recorded in the wavelength range 250-600 nm and the results were analyzed with the help of reference data. The work demonstrates that using characteristic optical emission, obtaining in situ chemical information from oscillating plasma of electric arc furnaces is indeed possible. In spite of complications, the method could possibly be applied to industrial scale steel making process in order to improve its efficiency.

  2. Nonlinear optical properties of bulk cuprous oxide using single beam Z-scan at 790?nm

    SciTech Connect (OSTI)

    Serna, J.; Rueda, E.; Garca, H.

    2014-11-10

    The two-photon absorption (TPA) coefficient ? and the nonlinear index of refraction n{sub 2} for bulk cuprous oxide (Cu{sub 2}O) direct gap semiconductor single crystal have been measured by using a balance-detection Z-scan single beam technique, with an excellent signal to noise ratio. Both coefficients were measured at 790?nm using a 65 fs laser pulse at a repetition rate of 90.9?MHz, generated by a Ti:Sapphire laser oscillator. The experimental values for ? were explained by using a model that includes allowed-allowed, forbidden-allowed, and forbidden-forbidden transitions. It was found that the forbidden-forbidden transition is the dominant mechanism, which is consistent with the band structure of Cu{sub 2}O. The low value for ? found in bulk, as compared with respect to thin film, is explained in terms of the structural change in thin films that result in opposite parities of the conduction and valence band. The n{sub 2} is also theoretically calculated by using the TPA dispersion curve and the Kramers-Kronig relations for nonlinear optics.

  3. Detonation wave profiles measured in plastic bonded explosives using 1550 nm photon doppler velocimetry (PDV)

    SciTech Connect (OSTI)

    Gustavsen, Richard L; Bartram, Brian D; Sanchez, Nathaniel J

    2009-01-01

    We present detonation wave profiles measured in two TATB based explosives and two HMX based explosives. Profiles were measured at the interface of the explosive and a Lithium-Fluoride (LiF) window using 1550 nm Photon Doppler Velocimetry (PDV). Planar detonations were produced by impacting the explosive with a projectile launched in a gas-gun. The impact state was varied to produce varied distance to detonation, and therefore varied support of the Taylor wave following the Chapman-Jouget (CJ) or sonic state. Profiles from experiments with different support should be the same between the Von-Neumann (VN) spike and CJ state and different thereafter. Comparison of profiles with differing support, therefore, allows us to estimate reaction zone lengths. For the TATB based explosive, a reaction zone length of {approx} 3.9 mm, 500 ns was measured in EDC-35, and a reaction zone length of {approx} 6.3 mm, 800 ns was measured in PBX 9502 pre-cooled to -55 C. The respective VN spike state was 2.25 {+-} 0.05 km/s in EDC-35 and 2.4 {+-} 0.1 km/s in the cooled PBX 9502. We do not believe we have resolved either the VN spike state (> 2.6 km/s) nor the reaction zone length (<< 50 ns) in the HMX based explosives.

  4. Spectral irradiance model for tungsten halogen lamps in 340-850 nm wavelength range

    SciTech Connect (OSTI)

    Ojanen, Maija; Kaerhae, Petri; Ikonen, Erkki

    2010-02-10

    We have developed a physical model for the spectral irradiance of 1 kW tungsten halogen incandescent lamps for the wavelength range 340-850 nm. The model consists of the Planck's radiation law, published values for the emissivity of tungsten, and a residual spectral correction function taking into account unknown factors of the lamp. The correction function was determined by measuring the spectra of a 1000 W, quartz-halogen, tungsten coiled filament (FEL) lamp at different temperatures. The new model was tested with lamps of types FEL and 1000 W, 120 V quartz halogen (DXW). Comparisons with measurements of two national standards laboratories indicate that the model can account for the spectral irradiance values of lamps with an agreement better than 1% throughout the spectral region studied. We further demonstrate that the spectral irradiance of a lamp can be predicted with an expanded uncertainty of 2.6% if the color temperature and illuminance values for the lamp are known with expanded uncertainties of 20 K and 2%, respectively. In addition, it is suggested that the spectral irradiance may be derived from resistance measurements of the filament with lamp on and off.

  5. NM WAIDS: A PRODUCED WATER QUALITY AND INFRASTRUCTURE GIS DATABASE FOR NEW MEXICO OIL PRODUCERS

    SciTech Connect (OSTI)

    Martha Cather; Robert Lee; Ibrahim Gundiler; Andrew Sung; Naomi Davidson; Ajeet Kumar Reddy; Mingzhen Wei

    2003-04-01

    The New Mexico Water and Infrastructure Data System (NM WAIDS) seeks to alleviate a number of produced water-related issues in southeast New Mexico. The project calls for the design and implementation of a Geographical Information System (GIS) and integral tools that will provide operators and regulators with necessary data and useful information to help them make management and regulatory decisions. The major components of this system are: (1) databases on produced water quality, cultural and groundwater data, oil pipeline and infrastructure data, and corrosion information, (2) a web site capable of displaying produced water and infrastructure data in a GIS or accessing some of the data by text-based queries, (3) a fuzzy logic-based, site risk assessment tool that can be used to assess the seriousness of a spill of produced water, and (4) a corrosion management toolkit that will provide operators with data and information on produced waters that will aid them in deciding how to address corrosion issues. The various parts of NM WAIDS will be integrated into a website with a user-friendly interface that will provide access to previously difficult-to-obtain data and information. Primary attention during the first six months of this project has been focused on creating the water quality databases for produced water and surface water, along with collection of corrosion information and building parts of the corrosion toolkit. Work on the project to date includes: (1) Creation of a water quality database for produced water analyses. The database was compiled from a variety of sources and currently has over 4000 entries for southeast New Mexico. (2) Creation of a web-based data entry system for the water quality database. This system allows a user to view, enter, or edit data from a web page rather than having to directly access the database. (3) Creation of a semi-automated data capturing system for use with standard water quality analysis forms. This system improves the

  6. NM WAIDS: A PRODUCED WATER QUALITY AND INFRASTRUCTURE GIS DATABASE FOR NEW MEXICO OIL PRODUCERS

    SciTech Connect (OSTI)

    Martha Cather; Robert Lee; Ibrahim Gundiler; Andrew Sung

    2003-09-24

    The New Mexico Water and Infrastructure Data System (NM WAIDS) seeks to alleviate a number of produced water-related issues in southeast New Mexico. The project calls for the design and implementation of a Geographical Information System (GIS) and integral tools that will provide operators and regulators with necessary data and useful information to help them make management and regulatory decisions. The major components of this system are: (1) Databases on produced water quality, cultural and groundwater data, oil pipeline and infrastructure data, and corrosion information. (2) A web site capable of displaying produced water and infrastructure data in a GIS or accessing some of the data by text-based queries. (3) A fuzzy logic-based, site risk assessment tool that can be used to assess the seriousness of a spill of produced water. (4) A corrosion management toolkit that will provide operators with data and information on produced waters that will aid them in deciding how to address corrosion issues. The various parts of NM WAIDS will be integrated into a website with a user-friendly interface that will provide access to previously difficult-to-obtain data and information. Primary attention during the first six months of this project was focused on creating the water quality databases for produced water and surface water, along with collecting of corrosion information and building parts of the corrosion toolkit. Work on the project to date includes: (1) Creation of a water quality database for produced water analyses. The database was compiled from a variety of sources and currently has over 7000 entries for New Mexico. (2) Creation of a web-based data entry system for the water quality database. This system allows a user to view, enter, or edit data from a web page rather than having to directly access the database. (3) Creation of a semi-automated data capturing system for use with standard water quality analysis forms. This system improves the accuracy and speed

  7. Development of process parameters for 22 nm PMOS using 2-D analytical modeling

    SciTech Connect (OSTI)

    Maheran, A. H. Afifah; Menon, P. S.; Shaari, S.; Ahmad, I.; Faizah, Z. A. Noor

    2015-04-24

    The complementary metal-oxide-semiconductor field effect transistor (CMOSFET) has become major challenge to scaling and integration. Innovation in transistor structures and integration of novel materials are necessary to sustain this performance trend. CMOS variability in the scaling technology becoming very important concern due to limitation of process control; over statistically variability related to the fundamental discreteness and materials. Minimizing the transistor variation through technology optimization and ensuring robust product functionality and performance is the major issue.In this article, the continuation study on process parameters variations is extended and delivered thoroughly in order to achieve a minimum leakage current (I{sub LEAK}) on PMOS planar transistor at 22?nm gate length. Several device parameters are varies significantly using Taguchi method to predict the optimum combination of process parameters fabrication. A combination of high permittivity material (high-k) and metal gate are utilized accordingly as gate structure where the materials include titanium dioxide (TiO{sub 2}) and tungsten silicide (WSi{sub x}). Then the L9 of the Taguchi Orthogonal array is used to analyze the device simulation where the results of signal-to-noise ratio (SNR) of Smaller-the-Better (STB) scheme are studied through the percentage influences of the process parameters. This is to achieve a minimum I{sub LEAK} where the maximum predicted I{sub LEAK} value by International Technology Roadmap for Semiconductors (ITRS) 2011 is said to should not above 100 nA/m. Final results shows that the compensation implantation dose acts as the dominant factor with 68.49% contribution in lowering the devices leakage current. The absolute process parameters combination results in I{sub LEAK} mean value of 3.96821 nA/m where is far lower than the predicted value.

  8. Use of a dynamic simulation model to understand nitrogen cycling in the middle Rio Grande, NM.

    SciTech Connect (OSTI)

    Meixner, Tom; Tidwell, Vincent Carroll; Oelsner, Gretchen; Brooks, Paul; Roach, Jesse D.

    2008-08-01

    Water quality often limits the potential uses of scarce water resources in semiarid and arid regions. To best manage water quality one must understand the sources and sinks of both solutes and water to the river system. Nutrient concentration patterns can identify source and sink locations, but cannot always determine biotic processes that affect nutrient concentrations. Modeling tools can provide insight into these large-scale processes. To address questions about large-scale nitrogen removal in the Middle Rio Grande, NM, we created a system dynamics nitrate model using an existing integrated surface water--groundwater model of the region to evaluate our conceptual models of uptake and denitrification as potential nitrate removal mechanisms. We modeled denitrification in groundwater as a first-order process dependent only on concentration and used a 5% denitrification rate. Uptake was assumed to be proportional to transpiration and was modeled as a percentage of the evapotranspiration calculated within the model multiplied by the nitrate concentration in the water being transpired. We modeled riparian uptake as 90% and agricultural uptake as 50% of the respective evapotranspiration rates. Using these removal rates, our model results suggest that riparian uptake, agricultural uptake and denitrification in groundwater are all needed to produce the observed nitrate concentrations in the groundwater, conveyance channels, and river as well as the seasonal concentration patterns. The model results indicate that a total of 497 metric tons of nitrate-N are removed from the Middle Rio Grande annually. Where river nitrate concentrations are low and there are no large nitrate sources, nitrate behaves nearly conservatively and riparian and agricultural uptake are the most important removal mechanisms. Downstream of a large wastewater nitrate source, denitrification and agricultural uptake were responsible for approximately 90% of the nitrogen removal.

  9. Understanding the anomalous dispersion of doubly-ionized carbon plasmas near 47 nm

    SciTech Connect (OSTI)

    Nilsen, J; Castor, J I; Iglesias, C A; Cheng, K T; Dunn, J; Johnson, W R; Filevich, J; Purvis, M A; Grava, J; Rocca, J J

    2008-04-15

    Over the last several years we have predicted and observed plasmas with an index of refraction greater than one in the soft X-ray regime. These plasmas are usually a few times ionized and have ranged from low-Z carbon plasmas to mid-Z tin plasmas. Our main calculational tool has been the average atom code. We have recently observed C{sup 2+} plasmas with an index of refraction greater than one at a wavelength of 46.9 nm (26.44 eV). In this paper we compare the average atom method, AVATOMKG, against two more detailed methods, OPAL and CAK, for calculating the index of refraction for the carbon plasmas and discuss the different approximations used. We present experimental measurements of carbon plasmas that display this anomalous dispersion phenomenon. It is shown that the average atom calculation is a good approximation when the strongest lines dominate the dispersion. However, when weaker lines make a significant contribution, the more detailed calculations such as OPAL and CAK are essential. During the next decade X-ray free electron lasers and other X-ray sources will be available to probe a wider variety of plasmas at higher densities and shorter wavelengths so understanding the index of refraction in plasmas will be even more essential. With the advent of tunable X-ray lasers the frequency dependent interferometer measurements of the index of refraction may enable us to determine the absorption coefficients and line-shapes and make detailed comparisons against our atomic physics codes.

  10. Direct Probes of 4 nm Diameter Gold Nanoparticles Interacting with Supported Lipid Bylayers

    SciTech Connect (OSTI)

    Troiano, Julianne; Olenick, Laura L.; Kuech, Thomas R.; Melby, Eric S.; Hu, Dehong; Lohse, Samuel E.; Mensch, Arielle C.; Dogangun, Merve; Vartanian, Arlane M.; Torelli, Marco; Ehimiaghe, Eseohi; Walter, Stephanie R.; Fu, Li; Anderton, Christopher R.; Zhu, Zihua; Wang, Hongfei; Orr, Galya; Murphy, Catherine; Hamers, Robert J.; Pedersen, Joel A.; Geiger, Franz M.

    2015-01-08

    Interfacial charge densities and potentials are determined for silica-supported phospholipid bilayers formed from lipids having zwitterionic, negatively charged, and positively charged headgroups. Quartz crystal microbalance with dissipation (QCM-D), fluorescence recovery after photobleaching (FRAP), and atomic force microscopy demonstrate the presence of well-formed supported lipid bilayers, which, as probed by vibrational sum frequency generation (SFG), undergo negligible structural changes along their alkyl chains when NaCl concentration is raised from 0.001 to 0.1 M. From second harmonic generation (SHG) measurements we estimate that each zwitterionic headgroup of the bilayer formed from pure DOPC is associated with an apparent charge of -0.028(+0.008/-0.007)×10-¹⁹C, corresponding to 1.8 ± 0.5 % of an elementary negative charge. Moreover, we show that a supported lipid bilayer carrying an apparent negative interfacial potential may interact with not just positively charged 4-nm diameter gold nanoparticles but also negatively charged gold nanoparticles. In this latter case, charge-charge repulsion does not appear to inhibit particle-bilayer interactions and is likely overcome by multivalent interactions that are estimated to involve 3-5 hydrogen-bond equivalents. FRAP, QCM-D, and SFG measurements indicate that the bilayers remain intact under the conditions of the experiments. SHG charge screening experiments are consistent with an apparent zero net charge density associated with the positively charged gold nanoparticles when they are attached to a supported lipid bilayer carrying an apparent negative potential. The results presented here serve to benchmark experimental and computational studies of the nano-bio interface.

  11. Remediation of a Classified Waste Landfill at Sandia National Laboratories, NM

    SciTech Connect (OSTI)

    Ward, D.C.

    1998-10-20

    The Sandia National Laboratory es/New Mexico (SNLiNM) Environmental Restoration Project is currently excavating the Classified Waste Landfill in Technical Area II (TA-H), which consists of disposal pits and trenches with discrete disposal cells. TA-11 is a secure, controlled assess, research facility managed by SNIJNM for the US Department of Energy (DOE). The 45-acre facility was established in 1948 for the assembly and maintenance of nuclear weapons. The assembly of weapons was discontinued in 1954. Since that time, TA-11 has been used primarily for explosive research and testing. Beginning is 1984, the DOE Er,vironmental Restoration Program conducted several environmental investigations across TA-11 and SNMNM. These investigations identified sites requiring firther study and possible corrective action. The majority of these sites were grouped into operable units (OUS). The TA-11 OU included 13 sites, one of which is identified as the Classified Waste Landfill (CWLF). The CWLF covers about 2.5 acres and was operated from approximately 1947 through 1987. It was the site for disposal of classified weapon components, s ome of which are potentially explosive, hazardous, ardor radioactively contarninatod. Until about 1958, no records were maintained for material disposed of in the CWLF. Information on the CWLF has been assembled horn interview notes, delivery to reckmation records and other sources. Items disposed of included security containers, hoppers, skids, missiles, wooden boxes, deactivated heat sources, tntium boosters, scintillation cocktails, weapons cases, shells, lasers, radar equipment and accountable mata-ials. Potential contaminants include tritium, thorium, cesium-137, strontium-90, uraniun, plutonium, beryllium, cadmium, lithium, chloroform, toluene, benzene ad other solvents.

  12. Charge transfer fluorescence and 34 nm exciton diffusion length in polymers with electron acceptor end traps

    DOE Public Access Gateway for Energy & Science Beta (PAGES Beta)

    Zaikowski, Lori; Mauro, Gina; Bird, Matthew; Karten, Brianne; Asaoka, Sadayuki; Wu, Qin; Cook, Andrew R.; Miller, John R.

    2014-12-22

    Photoexcitation of conjugated poly-2,7-(9,9-dihexylfluorene) polyfluorenes with naphthylimide (NI) and anthraquinone (AQ) electron-acceptor end traps produces excitons that form charge transfer states at the end traps. Intramolecular singlet exciton transport to end traps was examined by steady state fluorescence for polyfluorenes of 17 to 127 repeat units in chloroform, dimethylformamide (DMF), tetrahydrofuran (THF), and p-xylene. End traps capture excitons and form charge transfer (CT) states at all polymer lengths and in all solvents. The CT nature of the end-trapped states is confirmed by their fluorescence spectra, solvent and trap group dependence and DFT descriptions. Quantum yields of CT fluorescence are asmore » large as 46%. This strong CT emission is understood in terms of intensity borrowing. Energies of the CT states from onsets of the fluorescence spectra give the depths of the traps which vary with solvent polarity. For NI end traps the trap depths are 0.06 (p-xylene), 0.13 (THF) and 0.19 eV (CHCl3). For AQ, CT fluorescence could be observed only in p-xylene where the trap depth is 0.27 eV. Quantum yields, emission energies, charge transfer energies, solvent reorganization and vibrational energies were calculated. Fluorescence measurements on chains >100 repeat units indicate that end traps capture ~50% of the excitons, and that the exciton diffusion length LD =34 nm, which is much larger than diffusion lengths reported in polymer films or than previously known for diffusion along isolated chains. As a result, the efficiency of exciton capture depends on chain length, but not on trap depth, solvent polarity or which trap group is present.« less

  13. Charge Transfer Fluorescence and 34 nm Exciton Diffusion Length in Polymers with Electron Acceptor End Traps

    SciTech Connect (OSTI)

    Zaikowski, L.; Mauro, G.; Bird, M.; Karten, B.; Asaoka, S.; Wu, Q.; Cook, A. R.; Miller, J.

    2014-12-22

    Photoexcitation of conjugated poly-2,7-(9,9-dihexylfluorene) polyfluorenes with naphthylimide (NI) and anthraquinone (AQ) electron-acceptor end traps produces excitons that form charge transfer states at the end traps. Intramolecular singlet exciton transport to end traps was examined by steady state fluorescence for polyfluorenes of 17 to 127 repeat units in chloroform, dimethylformamide (DMF), tetrahydrofuran (THF), and p-xylene. End traps capture excitons and form charge transfer (CT) states at all polymer lengths and in all solvents. The CT nature of the end-trapped states is confirmed by their fluorescence spectra, solvent and trap group dependence and DFT descriptions. Quantum yields of CT fluorescence are as large as 46%. This strong CT emission is understood in terms of intensity borrowing. Energies of the CT states from onsets of the fluorescence spectra give the depths of the traps which vary with solvent polarity. For NI end traps the trap depths are 0.06 (p-xylene), 0.13 (THF) and 0.19 eV (CHCl3). For AQ, CT fluorescence could be observed only in p-xylene where the trap depth is 0.27 eV. Quantum yields, emission energies, charge transfer energies, solvent reorganization and vibrational energies were calculated. Fluorescence measurements on chains >100 repeat units indicate that end traps capture ~50% of the excitons, and that the exciton diffusion length LD =34 nm, which is much larger than diffusion lengths reported in polymer films or than previously known for diffusion along isolated chains. The efficiency of exciton capture depends on chain length, but not on trap depth, solvent polarity or which trap group is present.

  14. Broadband superluminescent diodes with bell-shaped spectra emitting in the range from 800 to 900 nm

    SciTech Connect (OSTI)

    Andreeva, E V; Il'ichenko, S N; Kostin, Yu O; Lapin, P I; Ladugin, M A; Marmalyuk, A A; Yakubovich, S D

    2013-08-31

    Quantum-well superluminescent diodes (SLD) with extremely thin active (AlGa)As and (InGa)As layers and centre wavelengths about 810, 840, 860 and 880 nm are experimentally studied. Their emission spectrum possesses the shape close to Gaussian, its FWHM being 30 – 60 nm depending on the length of the active channel and the level of pumping. Under cw injection, the output power of light-emitting modules based on such SLDs can amount to 1.0 – 25 mW at the output of a single-mode fibre. It is demonstrated that the operation lifetime of these devices exceeds 30000 hours. Based on the light-emitting modules the prototypes of combined BroadLighter series light sources are implemented having a bell-shaped spectrum with the width up to 100 nm. (optical radiation sources)

  15. Effects of solar ultraviolet photons on mammalian cell DNA. [UVA (320-400 nm):a2

    SciTech Connect (OSTI)

    Peak, M.J.; Peak, J.G.

    1991-01-01

    This document presents information on the possible mechanisms of carcinogenesis caused by UVA (ultraviolet radiation in the 320--400 nm region). Most studies showing the carcinogenic effects of ultraviolet light have concentrated on UVB (280--320 nm). UVA had been considered harmless even though it penetrates biological tissues better than UVB. Recently, it has become apparent that UVA is also capable of causing damage to cellular DNA. This was unexpected because the DNA UV absorption spectrum indicates a negligible probability that photons of wavelengths longer than 320 nm will be directly absorbed. The most common defects induced in DNA by UVB are pyrimidine photoproducts, such as thymidine dimers. UVA photons produce defects resembling those caused by ionizing radiations: single- and double-strand breaks, and DNA-protein crosslinks. This paper also discusses the role of DNA repair mechanisms in UVA-induced defects and the molecular mechanisms of UVA damage induction. 38 refs. (MHB)

  16. Modification of laminar flow ultrafine condensation particle counters for the enhanced detection of 1 nm condensation nuclei

    SciTech Connect (OSTI)

    Kuang, C.; Chen, M.; McMurry, P. H.; Wang, J.

    2011-10-01

    This paper describes simple modifications to thermally diffusive laminar flow ultrafine condensation particle counters (UCPCs) that allow detection of {approx}1 nm condensation nuclei with much higher efficiencies than have been previously reported. These nondestructive modifications were applied to a commercial butanol based UCPC (TSI 3025A) and to a diethylene glycol-based UCPC (UMN DEG-UCPC). Size and charge dependent detection efficiencies using the modified UCPCs (BNL 3025A and BNL DEGUCPC) were measured with high resolution mobility classified aerosols composed of NaCl, W, molecular ion standards of tetraalkyl ammonium bromide, and neutralizer-generated ions. With negatively charged NaCl aerosol, the BNL 3025A and BNL DEGUCPC achieved detection efficiencies of 37% (90x increase over TSI 3025A) at 1.68 nm mobility diameter (1.39 nm geometric diameter) and 23% (8x increase over UMN DEG-UCPC) at 1.19 nm mobility diameter (0.89 nm geometric diameter), respectively. Operating conditions for both UCPCs were identified that allowed negatively charged NaCl and W particles, but not negative ions of exactly the same mobility size, to be efficiently detected. This serendipitous material dependence, which is not fundamentally understood, suggests that vapor condensation might sometimes allow for the discrimination between air 'ions' and charged 'particles.' As a detector in a scanning mobility particle spectrometer (SMPS), a UCPC with this strong material dependence would allow for more accurate measurements of sub-2 nm aerosol size distributions due to the reduced interference from neutralizer-generated ions and atmospheric ions, and provide increased sensitivity for the determination of nucleation rates and initial particle growth rates.

  17. Pulsed-N{sub 2} assisted growth of 5-20 nm thick β-W films

    SciTech Connect (OSTI)

    Narasimham, Avyaya J.; Green, Avery; Matyi, Richard J.; Khare, Prasanna; Vo, Tuan; Diebold, Alain; LaBella, Vincent P.

    2015-11-15

    A technique to deposit 5-20 nm thick β-phase W using a 2-second periodic pulse of 1 sccm-N{sub 2} gas on Si(001) and SiN(5 nm)/Si(001) substrates is reported. Resistivity, X-ray photoelectron spectroscopy and X-ray reflectivity were utilized to determine phase, bonding and thickness, respectively. X-ray diffraction patterns were utilized to determine the crystal structure, lattice constant and crystal size using the LeBail method. The flow rate of Nitrogen gas (continuous vs. pulsing) had significant impact upon the crystallinity and formation of β-phase W.

  18. Bose-Einstein condensate in a light-induced vector gauge potential using 1064-nm optical-dipole-trap lasers

    SciTech Connect (OSTI)

    Fu Zhengkun; Wang Pengjun; Chai Shijie; Huang Lianghui; Zhang Jing

    2011-10-15

    Using two crossed 1064-nm optical-dipole-trap lasers to be the Raman beams, an effective vector gauge potential for Bose-Einstein condensed {sup 87}Rb in the F=2 hyperfine ground state is experimentally created. The moderate strength of the Raman coupling still can be achieved when the detuning from atomic resonance is larger than the excited-state fine structure, since rubidium has 15 nm energy-level spitting. The atoms at the far detuning of the Raman coupling are loaded adiabatically into the dressed states by ramping the homogeneous bias magnetic field with different paths and the dressed states with different energies are studied experimentally. The experimental scheme can be easily extended to produce the synthetic magnetic or electric field by means of a spatial or time dependence of the effective vector potential.

  19. Electrical and chemical properties of XeCl*(308 nm) exciplex lamp created by a dielectric barrier discharge

    SciTech Connect (OSTI)

    Baadj, S.; Harrache, Z. Belasri, A.

    2013-12-15

    The aim of this work is to highlight, through numerical modeling, the chemical and the electrical characteristics of xenon chloride mixture in XeCl* (308 nm) excimer lamp created by a dielectric barrier discharge. A temporal model, based on the Xe/Cl{sub 2} mixture chemistry, the circuit and the Boltzmann equations, is constructed. The effects of operating voltage, Cl{sub 2} percentage in the Xe/Cl{sub 2} gas mixture, dielectric capacitance, as well as gas pressure on the 308-nm photon generation, under typical experimental operating conditions, have been investigated and discussed. The importance of charged and excited species, including the major electronic and ionic processes, is also demonstrated. The present calculations show clearly that the model predicts the optimal operating conditions and describes the electrical and chemical properties of the XeCl* exciplex lamp.

  20. Laser diodes with 353 nm wavelength enabled by reduced-dislocation-density AlGaN templates

    DOE Public Access Gateway for Energy & Science Beta (PAGES Beta)

    Crawford, Mary H.; Allerman, Andrew A.; Armstrong, Andrew M.; Smith, Michael L.; Cross, Karen C.

    2015-10-30

    We fabricated optically pumped and electrically injected ultraviolet (UV) lasers on reduced-threading-dislocation-density (reduced-TDD) AlGaN templates. The overgrowth of sub-micron-wide mesas in the Al0.32Ga0.68N templates enabled a tenfold reduction in TDD, to (2–3) × 108 cm–2. Optical pumping of AlGaN hetero-structures grown on the reduced-TDD templates yielded a low lasing threshold of 34 kW/cm2 at 346 nm. Room-temperature pulsed operation of laser diodes at 353 nm was demonstrated, with a threshold of 22.5 kA/cm2. Furthermore, reduced-TDD templates have been developed across the entire range of AlGaN compositions, presenting a promising approach for extending laser diodes into the deep UV.

  1. Laser diodes with 353 nm wavelength enabled by reduced-dislocation-density AlGaN templates

    SciTech Connect (OSTI)

    Crawford, Mary H.; Allerman, Andrew A.; Armstrong, Andrew M.; Smith, Michael L.; Cross, Karen C.

    2015-10-30

    We fabricated optically pumped and electrically injected ultraviolet (UV) lasers on reduced-threading-dislocation-density (reduced-TDD) AlGaN templates. The overgrowth of sub-micron-wide mesas in the Al0.32Ga0.68N templates enabled a tenfold reduction in TDD, to (2–3) × 108 cm–2. Optical pumping of AlGaN hetero-structures grown on the reduced-TDD templates yielded a low lasing threshold of 34 kW/cm2 at 346 nm. Room-temperature pulsed operation of laser diodes at 353 nm was demonstrated, with a threshold of 22.5 kA/cm2. Furthermore, reduced-TDD templates have been developed across the entire range of AlGaN compositions, presenting a promising approach for extending laser diodes into the deep UV.

  2. Award for Nuclear Chemistry LOS ALAMOS, N.M., Aug. 22, 2016-Los Alamos National Laboratory chemist David

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    scientist honored by ACS for innovative studies August 22, 2016 David L. Clark selected for 2017 Glenn T. Seaborg Award for Nuclear Chemistry LOS ALAMOS, N.M., Aug. 22, 2016-Los Alamos National Laboratory chemist David L. Clark has been selected as the 2017 recipient of the Glenn T. Seaborg Award for Nuclear Chemistry, sponsored by the American Chemical Society Division of Nuclear Chemistry and Technology. "Dave is well-known for his breadth of accomplishment in actinide synthesis,

  3. Sub-5 nm Domains in Ordered Poly(cyclohexylethylene)-block-poly(methyl methacrylate) Block Polymers for Lithography.

    SciTech Connect (OSTI)

    Kennemur, Justin; Yao, Li; Bates, Frank Stephen; Hillmyer, Marc

    2014-01-01

    A series of poly(cyclohexylethylene)-block-poly- (methyl methacrylate) (PCHE PMMA) diblock copolymers with varying molar mass (4.9 kg/mol Mn 30.6 kg/mol) and narrow molar mass distribution were synthesized through a combination of anionic and atom transfer radical polymerization (ATRP) techniques. Heterogeneous catalytic hydrogenation of -(hydroxy)polystyrene (PS-OH) yielded -(hydroxy)poly(cyclohexylethylene) (PCHEOH) with little loss of hydroxyl functionality. PCHE-OH was reacted with -bromoisobutyryl bromide (BiBB) to produce an ATRP macroinitiator used for the polymerization of methyl methacrylate. PCHE PMMA is a glassy, thermally stable material with a large effective segment segment interaction parameter, eff = (144.4 6.2)/T (0.162 0.013), determined by meanfield analysis of order-to-disorder transition temperatures (TODT) measured by dynamic mechanical analysis and differential scanning calorimetry. Ordered lamellar domain pitches (9 D 33 nm) were identified by small-angle X-ray scattering from neat BCPs containing 43 52 vol % PCHE ( f PCHE). Atomic force microscopy was used to show 7.5 nm lamellar features (D = 14.8 nm) which are some of the smallest observed to date. The lowest molar mass sample (Mn = 4.9 kg/mol, f PCHE = 0.46) is characterized by TODT = 173 3 C and sub-5 nm nanodomains, which together with the sacrificial properties of PMMA and the high overall thermal stability place this material at the forefront of high- systems for advanced nanopatterning applications.

  4. 03-2016-2 | netl.doe.gov

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    Director Highlights Progress of Research for Separating Rare Earth Elements from Coal and Coal By-Products at National Conference ree.jpg During a presentation at the American Coal Ash Association (ACAA) Winter Meeting in Tampa, FL, NETL Director Dr. Grace Bochenek outlined an aggressive research initiative focused on discovering ways to separate and recover rare earth elements (REEs) from coal and coal by-products for use in an expanding array of consumer products. REEs are chemical elements

  5. transportation-systems-modeling-training

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    Training Table of Contents Date Location Integrated Transportation Models Workshop at ITM 2012 April 29, 2012 Hyatt Regency Tampa, FL TRANSIMS Training Course April 14-15, 2011 James E. Clyburn University Transportation Center Orangeburg, SC TRANSIMS RTSTEP Guest Lecturer March 29, 2011 Argonne TRACC Argonne, IL TRANSIMS Training Course January 19-21 2011 Argonne TRACC Argonne, IL TRANSIMS Training Course September 7-8, 2010 Turner Fairbank Highway Research Center Washington D.C. Network

  6. Role of excited state photoionization in the 852.1 nm Cs laser pumped by Cs-Ar photoassociation

    SciTech Connect (OSTI)

    Hewitt, J. D.; Houlahan, T. J. Jr.; Eden, J. G.; Gallagher, J. E.; Perram, G. P.; Carroll, D. L.; Palla, A. D.; Verdeyen, J. T.

    2013-03-18

    Photoionization of Cs (6p {sup 2}P{sub 3/2}) atoms during the operation of a Cs D{sub 2} line (852.1 nm: 6p {sup 2}P{sub 3/2}{yields}6s {sup 2}S{sub 1/2}) laser, pumped by free{yields}free transitions of thermal Cs-Ar ground state pairs, has been investigated experimentally and computationally. Photoexcitation of Cs vapor/Ar mixtures through the blue satellite of the D{sub 2} transition (peaking at 836.7 nm) selectively populates the {sup 2}P{sub 3/2} upper laser level by the dissociation of the CsAr excited complex. Comparison of laser output energy data, for instantaneous pump powers up to 3 MW, with the predictions of a numerical model sets an upper bound of 8 Multiplication-Sign 10{sup -26} cm{sup 4} W{sup -1} on the Cs (6p {sup 2}P{sub 3/2}) two photon ionization cross-section at 836.7 nm which corresponds to a single photon cross-section of 2.4 Multiplication-Sign 10{sup -19} cm{sup 2} for a peak pump intensity of 3 MW cm{sup -2}.

  7. Note: Deep ultraviolet Raman spectrograph with the laser excitation line down to 177.3 nm and its application

    SciTech Connect (OSTI)

    Jin, Shaoqing; Fan, Fengtao; Guo, Meiling; Zhang, Ying; Feng, Zhaochi E-mail: canli@dicp.ac.cn; Li, Can E-mail: canli@dicp.ac.cn

    2014-04-15

    Deep UV Raman spectrograph with the laser excitation line down to 177.3 nm was developed in this laboratory. An ellipsoidal mirror and a dispersed-subtractive triple monochromator were used to collect and disperse Raman light, respectively. The triple monochromator was arranged in a triangular configuration with only six mirrors used. 177.3 nm laser excited Raman spectrum with cut-off wavenumber down to 200 cm{sup −1} and spectral resolution of 8.0 cm{sup −1} can be obtained under the condition of high purity N{sub 2} purging. With the C–C σ bond in Teflon selectively excited by the 177.3 nm laser, resonance Raman spectrum of Teflon with good quality was recorded on the home-built instrument and the σ-σ{sup *} transition of C–C bond was studied. The result demonstrates that deep UV Raman spectrograph is powerful for studying the systems with electronic transition located in the deep UV region.

  8. Thickness effect on laser-induced-damage threshold of indium-tin oxide films at 1064 nm

    SciTech Connect (OSTI)

    Wang Haifeng; Huang Zhimeng; Zhang Dayong; Luo Fei; Huang Lixian; Li Yanglong; Luo Yongquan; Wang Weiping; Zhao Xiangjie

    2011-12-01

    Laser-induced-damage characteristics of commercial indium-tin oxide (ITO) films deposited by DC magnetron sputtering deposition on K9 glass substrates as a function of the film thickness have been studied at 1064 nm with a 10 ns laser pulse in the 1-on-1 mode, and the various mechanisms for thickness effect on laser-induced-damage threshold (LIDT) of the film have been discussed in detail. It is observed that laser-damage-resistance of ITO film shows dramatic thickness effect with the LIDT of the 50-nm ITO film 7.6 times as large as the value of 300 nm film, and the effect of depressed carrier density by decreasing the film thickness is demonstrated to be the primary reason. Our experiment findings indicate that searching transparent conductive oxide (TCO) film with low carrier density and high carrier mobility is an efficient technique to improve the laser-damage-resistance of TCO films based on maintaining their well electric conductivity.

  9. Intense {ital J}=0{endash}1 soft-x-ray lasing at 28.5 nm in neonlike chromium

    SciTech Connect (OSTI)

    Praeg, A.R.; Loewenthal, F.; Balmer, J.E.

    1996-11-01

    Intense 3{ital p}-3{ital s}, {ital J}=0{endash}1 soft-x-ray lasing at 28.5 nm in neonlike chromium has been observed experimentally using a compact Nd:glass laser as the driver. 2.4-cm-long polished chromium slab targets were irradiated with up to 100-J/500-ps pulses at the fundamental wavelength of 1.054 {mu}m. The prepulse technique was applied using a defined prepulse 5 ns before the main pulse and with a prepulse-to-main pulse energy ratio of 0.7{percent}. It is demonstrated that a pump energy of {approximately}80 J, corresponding to a pump irradiance of approximately 9 TW/cm{sup 2} is sufficient to observe soft-x-ray lasing at 28.5 nm. At a drive laser energy of {approximately}90 J a gain coefficient of (2.2{plus_minus}0.5) cm{sup {minus}1} was measured. The one-dimensional space-resolved measurements show that the 28.5-nm laser line is emitted from a 60-{mu}m-wide (full width at half maximum) plasma region. {copyright} {ital 1996 The American Physical Society.}

  10. HIA 2015 DOE Zero Energy Ready Home Case Study: Palo Duro Homes, Via del Cielo, Santa Fe, NM

    Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

    Via del Cielo Santa Fe, NM DOE ZERO ENERGY READY HOME(tm) The U.S. Department of Energy invites home builders across the country to meet the extraordinary levels of excellence and quality specified in DOE's Zero Energy Ready Home program (formerly known as Challenge Home). Every DOE Zero Energy Ready Home starts with ENERGY STAR Certified Homes Version 3.0 for an energy-efficient home built on a solid foundation of building science research. Advanced technologies are designed in to give you

  11. The effect of layout topology on single-event transient pulse quenching in a 65 nm bulk CMOS process.

    SciTech Connect (OSTI)

    Ball, D. R.; Ahlbin, Jonathan R.; Gadlage, Matthew J.; Massengill, Lloyd W.; Witulski, A. W.; Reed, R. A.; Vizkelethy, Gyorgy; Bhuva, Bharat L.

    2010-07-01

    Heavy-ion microbeam and broadbeam data are presented for a 65 nm bulk CMOS process showing the existence of pulse quenching at normal and angular incidence for designs where the pMOS transistors are in common n-wells or isolated in separate n-wells. Experimental data and simulations show that pulse quenching is more prevalent in the common n-well design than the separate n-well design, leading to significantly reduced SET pulsewidths and SET cross-section in the common n-well design.

  12. Absolute frequency measurement of the 674-nm {sup 88}Sr{sup +} clock transition using a femtosecond optical frequency comb

    SciTech Connect (OSTI)

    Margolis, H.S.; Huang, G.; Barwood, G.P.; Lea, S.N.; Klein, H.A.; Rowley, W.R.C.; Gill, P.; Windeler, R.S.

    2003-03-01

    The frequency of the 5s {sup 2}S{sub 1/2}-4d {sup 2}D{sub 5/2} electric quadrupole transition at 674 nm in a single, trapped, laser-cooled {sup 88}Sr{sup +} ion has been measured with respect to the Systeme International (SI) second using a femtosecond laser optical frequency comb. The measured frequency of 444 779 044 095.52 kHz, with an estimated standard uncertainty of 0.10 kHz, is more accurate than, and in agreement with, the value previously measured using a conventional frequency chain.

  13. Seedless Polyol Synthesis and CO Oxidation Activity of Monodisperse (111) and (100)-Oriented Rhodium Nanocrystals in Sub-10 nm Sizes

    SciTech Connect (OSTI)

    Zhang, Yawen; Grass, Michael E.; Huang, Wenyu; Somorjai, Gabor A.

    2010-03-15

    Monodisperse sub-10 nm (6.5 nm) sized Rh nanocrystals with (111) and (100) surface structures were synthesized by a seedless polyol reduction in ethylene glycol, with poly(vinylpyrrolidone) as a capping ligand. When using [Rh(Ac){sub 2}]{sub 2} as the metal precursor, (111)-oriented Rh nanopolyhedra containing 76% (111)-twined hexagons (in 2D projection) were obtained; whereas, when employing RhCl{sub 3} as the metal precursor in the presence of alkylammonium bromide, such as tetramethylammonium bromide and trimethyl(tetradecyl)ammonium bromide, (100)-oriented Rh nanocubes were obtained with 85% selectivity. The {l_brace}100{r_brace} faces of the Rh nanocrystals are stabilized by chemically adsorbed Br{sup -} ions from alkylammonium bromides, which led to (100)-oriented nanocubes. Monolayer films of the (111)-oriented Rh nanopolyhedra and (100)-oriented Rh nanocubes were deposited on silicon wafers in a Langmuir-Blodgett trough to make model 2D nanoarray catalysts. These nanocatalysts were active for CO oxidation by O{sub 2}, and the turnover frequency was independent of nanoparticle shape, consistent with that previously observed for Rh(111) and Rh(100) single crystals.

  14. A combined Kirkpatrick-Baez mirror and multilayer lens for sub-10 nm x-ray focusing

    SciTech Connect (OSTI)

    Ruhlandt, A.; Krueger, S. P.; Osterhoff, M.; Giewekemeyer, K.; Salditt, T.; Liese, T.; Radisch, V.; Krebs, H. U.

    2012-03-15

    We have used a combined optical system of a high gain elliptic Kirkpatrick-Baez mirror system (KB) and a multilayer Laue lens (MLL) positioned in the focal plane of the KB for hard x-rays nano-focusing. The two-step focusing scheme is based on a high acceptance and high gain elliptical mirror with moderate focal length and a MLL with ultra-short focal length. Importantly, fabrication constraints, i.e. in mirror polishing and bending, as well as MLL deposition can be significantly relaxed, since (a) the mirror focus in the range of 200-500 nm is sufficient, and (b) the number of layers of the MLL can be correspondingly small. First demonstrations of this setup at the coherence beamline of the PETRA III storage ring yield a highly divergent far-field diffraction pattern, from which the autocorrelation function of the near-field intensity distribution was obtained. The results show that the approach is well suited to reach smallest spot sizes in the sub-10nm range at high flux.

  15. ZERH Training: Albuquerque, NM

    Broader source: Energy.gov [DOE]

    The DOE Zero Energy Ready Home is a high performance home which is so energy efficient, that a renewable energy system can offset all or most of its annual energy Consumption.US DOE Zero Energy...

  16. Sandia Corporation (Albuquerque, NM)

    DOE Patents [OSTI]

    Ewsuk, Kevin G.; Arguello, Jr., Jose G.

    2006-01-31

    A method of designing a primary geometry, such as for a forming die, to be used in a powder pressing application by using a combination of axisymmetric geometric shapes, transition radii, and transition spaces to simulate the geometry where the shapes can be selected from a predetermined list or menu of axisymmetric shapes and then developing a finite element mesh to represent the geometry. This mesh, along with material properties of the component to be designed and powder, is input to a standard deformation finite element code to evaluate the deformation characteristics of the component being designed. The user can develop the geometry interactively with a computer interface in minutes and execute a complete analysis of the deformation characteristics of the simulated component geometry.

  17. Sandia Corporation (Albuquerque, NM)

    DOE Patents [OSTI]

    Diver, Richard B.

    2010-02-23

    A Theoretical Overlay Photographic (TOP) alignment method uses the overlay of a theoretical projected image of a perfectly aligned concentrator on a photographic image of the concentrator to align the mirror facets of a parabolic trough solar concentrator. The alignment method is practical and straightforward, and inherently aligns the mirror facets to the receiver. When integrated with clinometer measurements for which gravity and mechanical drag effects have been accounted for and which are made in a manner and location consistent with the alignment method, all of the mirrors on a common drive can be aligned and optimized for any concentrator orientation.

  18. Design concepts of monolithic metamorphic vertical-cavity surface-emitting lasers for the 1300–1550 nm spectral range

    SciTech Connect (OSTI)

    Egorov, A. Yu. Karachinsky, L. Ya.; Novikov, I. I.; Babichev, A. V.; Nevedomskiy, V. N.; Bugrov, V. E.

    2015-11-15

    Possible design concepts for long-wavelength vertical-cavity surface-emitting lasers for the 1300–1550 nm spectral range on GaAs substrates are suggested. It is shown that a metamorphic GaAs–InGaAs heterostructure with a thin buffer layer providing rapid transition from the lattice constant of GaAs to that of In{sub x}Ga{sub 1–x}As with an indium fraction of x < 0.3 can be formed by molecular-beam epitaxy. Analysis by transmission electron microscopy demonstrated the effective localization of mismatch dislocations in the thin buffer layer and full suppression of their penetration into the overlying InGaAs metamorphic layer.

  19. Metamorphic distributed Bragg reflectors for the 1440–1600 nm spectral range: Epitaxy, formation, and regrowth of mesa structures

    SciTech Connect (OSTI)

    Egorov, A. Yu. Karachinsky, L. Ya.; Novikov, I. I.; Babichev, A. V.; Berezovskaya, T. N.; Nevedomskiy, V. N.

    2015-10-15

    It is shown that metamorphic In{sub 0.3}Ga{sub 0.7}As/In{sub 0.3}Al{sub 0.7}As distributed Bragg reflectors (DBRs) with a reflection band at 1440–1600 nm and a reflectance of no less than 0.999 can be fabricated by molecular beam epitaxy (MBE) on a GaAs substrate. It is demonstrated that mesa structures formed from metamorphic DBRs on a GaAs substrate can be regrown by MBE and microcavities can be locally formed in two separate epitaxial processes. The results obtained can find wide application in the fabrication of vertical-cavity surface-emitting lasers (VCSELs) with a buried tunnel junction.

  20. Subkilohertz absolute-frequency measurement of the 467-nm electric octupole transition in {sup 171}Yb{sup +}

    SciTech Connect (OSTI)

    Blythe, P.J.; Gill, P.; Webster, S.A.; Margolis, H.S.; Lea, S.N.; Huang, G.; Choi, S.-K.; Rowley, W.R.C.; Windeler, R.S.

    2003-02-01

    The {sup 2}S{sub 1/2}(F=0){yields}{sup 2}F{sub 7/2}(F=3,m{sub F}=0) transition at 467 nm in a single trapped, laser-cooled ion of {sup 171}Yb{sup +} has been measured to be f{sub Yb{sup +}}=642 121 496 771.26(23) kHz using a femtosecond laser frequency comb generator. The measurement is limited by measurement statistics and by the ac Stark shift, both related to the 4.5 kHz linewidth of the probe laser at the time. The systematic shifts of the transition, including ac Stark, second-order Zeeman, quadrupole, and blackbody shifts, have been evaluated.

  1. Ab initio calculations of external-field shifts of the 661-nm quadrupolar clock transition in neutral Ag atoms

    SciTech Connect (OSTI)

    Topcu, Suat; Nasser, Jamil; Daku, Latevi Max Lawson; Fritzsche, Stephan

    2006-04-15

    Frequency shifts of the Ag I 4d{sup 10}5s {sup 2}S{sub 1/2}(F=0,M{sub F}=0) to 4d{sup 9}5s{sup 2} {sup 2}D{sub 5/2}(F{sup '}=2,M{sub F{sup '}}=0) electric-quadrupole transition at 330.6 nm due to external fields are calculated using multiconfigurational self-consistent field methods. As this forbidden transition is free from first order Doppler and Zeeman effects, it is under investigation for the realization of an atomic optical clock. The calculated perturbations are the light shift, the blackbody frequency shift, and the quadratic Zeeman shift. Results show that a total uncertainty of 10{sup -18} could be reach without confining the atoms in a Lamb-Dicke regime in an optical lattice.

  2. Frequency stabilization of a 1083 nm fiber laser to {sup 4}He transition lines with optical heterodyne saturation spectroscopies

    SciTech Connect (OSTI)

    Gong, W.; Peng, X. Li, W.; Guo, H.

    2014-07-15

    Two kinds of optical heterodyne saturation spectroscopies, namely, frequency modulation spectroscopy (FMS) and modulation transfer spectroscopy (MTS), are demonstrated for locking a fiber laser to the transition lines of metastable {sup 4}He atoms around 1083 nm. The servo-loop error signals of FMS and MTS for stabilizing laser frequency are optimized by studying the dependence of the peak-to-peak amplitude and slope on the optical power of pump and probe beams. A comparison of the stabilization performances of FMS/MTS and polarization spectroscopy (PS) is presented, which shows that MTS exhibits relatively superior performance with the least laser frequency fluctuation due to its flat-background dispersive signal, originated from the four-wave mixing process. The Allan deviation of the stabilized laser frequency is 5.4 10{sup ?12}@100 s with MTS for data acquired in 1000 s, which is sufficiently applicable for fields like laser cooling, optical pumping, and optical magnetometry.

  3. Uniform 2 nm gold nanoparticles supported on iron oxides as active catalysts for CO oxidation reaction: Structure-activity relationship

    SciTech Connect (OSTI)

    Guo, Yu; Senanayake, Sanjaya; Gu, Dong; Jin, Zhao; Du, Pei -Pei; Si, Rui; Xu, Wen -Qian; Huang, Yu -Ying; Tao, Jing; Song, Qi -Sheng; Jia, Chun -Jia; Schueth, Ferdi

    2015-01-12

    Uniform Au nanoparticles (~2 nm) with narrow size-distribution (standard deviation: 0.5–0.6 nm) supported on both hydroxylated (Fe_OH) and dehydrated iron oxide (Fe_O) have been prepared by either deposition-precipitation (DP) or colloidal-deposition (CD) methods. Different structural and textural characterizations were applied to the dried, calcined and used gold-iron oxide samples. The transmission electron microscopy (TEM) and high-resolution TEM (HRTEM) described the high homogeneity in the supported Au nanoparticles. The ex-situ and in-situ X-ray absorption fine structure (XAFS) characterization monitored the electronic and short-range local structure of active gold species. The synchrotron-based in-situ X-ray diffraction (XRD), together with the corresponding temperature-programmed reduction by hydrogen (H₂-TPR), indicated a structural evolution of the iron-oxide supports, correlating to their reducibility. An inverse order of catalytic activity between DP (Au/Fe_OH < Au/Fe_O) and CD (Au/Fe_OH > Au/Fe_O) was observed. Effective gold-support interaction results in a high activity for gold nanoparticles, locally generated by the sintering of dispersed Au atoms on the oxide support in the DP synthesis, while a hydroxylated surface favors the reactivity of externally introduced Au nanoparticles on Fe_OH support for the CD approach. This work reveals why differences in the synthetic protocol translate to differences in the catalytic performance of Au/FeOx catalysts with very similar structural characteristics in CO oxidation.

  4. Uniform 2 nm gold nanoparticles supported on iron oxides as active catalysts for CO oxidation reaction: Structure-activity relationship

    DOE Public Access Gateway for Energy & Science Beta (PAGES Beta)

    Guo, Yu; Senanayake, Sanjaya; Gu, Dong; Jin, Zhao; Du, Pei -Pei; Si, Rui; Xu, Wen -Qian; Huang, Yu -Ying; Tao, Jing; Song, Qi -Sheng; et al

    2015-01-12

    Uniform Au nanoparticles (~2 nm) with narrow size-distribution (standard deviation: 0.5–0.6 nm) supported on both hydroxylated (Fe_OH) and dehydrated iron oxide (Fe_O) have been prepared by either deposition-precipitation (DP) or colloidal-deposition (CD) methods. Different structural and textural characterizations were applied to the dried, calcined and used gold-iron oxide samples. The transmission electron microscopy (TEM) and high-resolution TEM (HRTEM) described the high homogeneity in the supported Au nanoparticles. The ex-situ and in-situ X-ray absorption fine structure (XAFS) characterization monitored the electronic and short-range local structure of active gold species. The synchrotron-based in-situ X-ray diffraction (XRD), together with the corresponding temperature-programmed reductionmore » by hydrogen (H₂-TPR), indicated a structural evolution of the iron-oxide supports, correlating to their reducibility. An inverse order of catalytic activity between DP (Au/Fe_OH < Au/Fe_O) and CD (Au/Fe_OH > Au/Fe_O) was observed. Effective gold-support interaction results in a high activity for gold nanoparticles, locally generated by the sintering of dispersed Au atoms on the oxide support in the DP synthesis, while a hydroxylated surface favors the reactivity of externally introduced Au nanoparticles on Fe_OH support for the CD approach. This work reveals why differences in the synthetic protocol translate to differences in the catalytic performance of Au/FeOx catalysts with very similar structural characteristics in CO oxidation.« less

  5. Viability of Cladosporium herbarum spores under 157 nm laser and vacuum ultraviolet irradiation, low temperature (10 K) and vacuum

    SciTech Connect (OSTI)

    Sarantopoulou, E. Stefi, A.; Kollia, Z.; Palles, D.; Cefalas, A. C.; Petrou, P. S.; Bourkoula, A.; Koukouvinos, G.; Kakabakos, S.; Velentzas, A. D.

    2014-09-14

    Ultraviolet photons can damage microorganisms, which rarely survive prolonged irradiation. In addition to the need for intact DNA, cell viability is directly linked to the functionality of the cell wall and membrane. In this work, Cladosporium herbarum spore monolayers exhibit high viability (7%) when exposed to 157 nm laser irradiation (412 kJm⁻²) or vacuum-ultraviolet irradiation (110–180 nm) under standard pressure and temperature in a nitrogen atmosphere. Spore viability can be determined by atomic-force microscopy, nano-indentation, mass, μ-Raman and attenuated reflectance Fourier-transform far-infrared spectroscopies and DNA electrophoresis. Vacuum ultraviolet photons cause molecular damage to the cell wall, but radiation resistance in spores arises from the activation of a photon-triggered signaling reaction, expressed via the exudation of intracellular substances, which, in combination with the low penetration depth of vacuum-ultraviolet photons, shields DNA from radiation. Resistance to phototoxicity under standard conditions was assessed, as was resistance to additional environmental stresses, including exposure in a vacuum, under different rates of change of pressure during pumping time and low (10 K) temperatures. Vacuum conditions were far more destructive to spores than vacuum-ultraviolet irradiation, and UV-B photons were two orders of magnitude more damaging than vacuum-ultraviolet photons. The viability of irradiated spores was also enhanced at 10 K. This work, in addition to contributing to the photonic control of the viability of microorganisms exposed under extreme conditions, including decontamination of biological warfare agents, outlines the basis for identifying bio-signaling in vivo using physical methodologies.

  6. Method to grow carbon thin films consisting entirely of diamond grains 3-5 nm in size and high-energy grain boundaries

    DOE Patents [OSTI]

    Carlisle, John A.; Auciello, Orlando; Birrell, James

    2006-10-31

    An ultrananocrystalline diamond (UNCD) having an average grain size between 3 and 5 nanometers (nm) with not more than about 8% by volume diamond having an average grain size larger than 10 nm. A method of manufacturing UNCD film is also disclosed in which a vapor of acetylene and hydrogen in an inert gas other than He wherein the volume ratio of acetylene to hydrogen is greater than 0.35 and less than 0.85, with the balance being an inert gas, is subjected to a suitable amount of energy to fragment at least some of the acetylene to form a UNCD film having an average grain size of 3 to 5 nm with not more than about 8% by volume diamond having an average grain size larger than 10 nm.

  7. Multi-step ion beam etching of sub-30 nm magnetic tunnel junctions for reducing leakage and MgO barrier damage

    SciTech Connect (OSTI)

    Chun, Sung-woo; Kim, Daehong; Kwon, Jihun; Kim, Bongho; Choi, Seonjun; Lee, Seung-Beck

    2012-04-01

    We have demonstrated the fabrication of sub 30 nm magnetic tunnel junctions (MTJs) with perpendicular magnetic anisotropy. The multi-step ion beam etching (IBE) process performed for 18 min between 45 deg. and 30 deg. , at 500 V combined ion supply voltage, resulted in a 55 nm tall MTJ with 28 nm diameter. We used a negative tone electron beam resist as the hard mask, which maintained its lateral dimension during the IBE, allowing almost vertical pillar side profiles. The measurement results showed a tunnel magneto-resistance ratio of 13% at 1 k{Omega} junction resistance. With further optimization in IBE energy and multi-step etching process, it will be possible to fabricate perpendicularly oriented MTJs for future sub 30 nm non-volatile magnetic memory applications.

  8. Phase diagram and transformations of iron pentacarbonyl to nm layered hematite and carbon-oxygen polymer under pressure

    DOE Public Access Gateway for Energy & Science Beta (PAGES Beta)

    Ryu, Young Jay; Kim, Minseob; Yoo, Choong -Shik

    2015-10-12

    In this study, we present the phase diagram of Fe(CO)5, consisting of three molecular polymorphs (phase I, II and III) and an extended polymeric phase that can be recovered at ambient condition. The phase diagram indicates a limited stability of Fe(CO)5 within a pressure-temperature dome formed below the liquid- phase II- polymer triple point at 4.2 GPa and 580 K. The limited stability, in turn, signifies the temperature-induced weakening of Fe-CO back bonds, which eventually leads to the dissociation of Fe-CO at the onset of the polymerization of CO. The recovered polymer is a composite of novel nm-lamellar layers ofmore » crystalline hematite Fe2O3 and amorphous carbon-oxygen polymers. These results, therefore, demonstrate the synthesis of carbon-oxygen polymer by compressing Fe(CO)5, which advocates a novel synthetic route to develop atomistic composite materials by compressing organometallic compounds.« less

  9. Towards Next Generation TATB-based Explosives by Understanding Voids and Microstructure from 10 nm to 1 cm

    SciTech Connect (OSTI)

    Willey, T M; Overturf, G

    2009-03-26

    TATB-based explosives have been investigated on length scales spanning several orders of magnitude, from just under 10 nm to larger than 1 cm. This has been accomplished using a combination of ultra-small angle x-ray scattering (USAXS), ultra-small angle neutron scattering (USANS), and x-ray computed tomography (XRCT). USAXS determines distributions the smallest structures including hot-spot voids from hundreds of nanometers to a few microns, USANS extends this range to about 10 microns, and two variants of XRCT cover sizes from microns to centimeters. Several examples are presented for LX-17, a triaminotrinitrobenzene based plastic bonded explosive using Kel-F 800. As an extension of previous USAXS results, in these proceedings, an alternate binder results in a more uniform microstructure for the PBX, useful towards design of next-generation TATB-based explosives. These data are an important step to understanding microstructural mechanisms that affect the mechanical properties of TATB-based explosives, and provide complete a comprehensive characterization of the structure of LX-17 from nanometers to centimeters that can be used as empirical input to computational models of detonation, and in determining the relationship between voids and microstructure to detonation properties.

  10. O({sup 3}P{sub J}) formation and desorption by 157-nm photoirradiation of amorphous solid water

    SciTech Connect (OSTI)

    DeSimone, Alice J.; Orlando, Thomas M.

    2014-03-07

    Photodissociation of amorphous solid water (ASW) deposited on a thinly oxidized copper substrate at 82 K was studied by measuring O({sup 3}P{sub J=2,1,0}) photoproducts detected with resonance-enhanced multiphoton ionization. For each spin-orbit state, the oxygen atom time-of-flight spectrum was measured as a function of H{sub 2}O exposure, which is related to ice thickness, and 157-nm irradiation time. Four Maxwell-Boltzmann distributions with translational temperatures of 10?000 K, 1800 K, 400 K, and 82 K were found to fit the data. The most likely formation mechanisms are molecular elimination following ionization of water and ion-electron recombination, secondary recombination of hydroxyl radicals, and photodissociation of adsorbed hydroxyl radicals. Evidence for O-atom diffusion through bulk ASW was found for H{sub 2}O exposures of at least 5 Langmuir (1 L = 10{sup ?6} Torr?s). The cross sections for O({sup 3}P{sub 2}) depletion were 1.3 10{sup ?19} and 6.5 10{sup ?20} cm{sup 2} for 1 and 5 L, respectively.

  11. Translational and internal energy distributions of methyl and hydroxyl radicals produced by 157 nm photodissociation of amorphous solid methanol

    SciTech Connect (OSTI)

    Hama, Tetsuya; Yokoyama, Masaaki; Yabushita, Akihiro; Kawasaki, Masahiro; Wickramasinghe, Piyumie; Guo Wei; Loock, Hans-Peter; Ashfold, Michael N. R.; Western, Colin M.

    2009-12-14

    Methanol is typically observed within water-rich interstellar ices and is a source of interstellar organic species. Following the 157 nm photoexcitation of solid methanol at 90 K, desorbed CH{sub 3}(v=0) and OH(v=0,1) radicals have been observed in situ, near the solid surface, using resonance-enhanced multiphoton ionization (REMPI) detection methods. Time-of-flight and rotationally resolved REMPI spectra of the desorbed species were measured, and the respective fragment internal energy and kinetic energy distributions were obtained. Photoproduction mechanisms for CH{sub 3} and OH radicals from solid methanol are discussed. The formation of O({sup 1}D and {sup 3}P) atoms and H{sub 2}O was investigated, but the yield of these species was found to be negligible. CH{sub 3} products arising following the photoexcitation of water-methanol mixed ice showed similar kinetic and internal energy distributions to those from neat methanol ice.

  12. Phase diagram and transformations of iron pentacarbonyl to nm layered hematite and carbon-oxygen polymer under pressure

    SciTech Connect (OSTI)

    Ryu, Young Jay; Kim, Minseob; Yoo, Choong -Shik

    2015-10-12

    In this study, we present the phase diagram of Fe(CO)5, consisting of three molecular polymorphs (phase I, II and III) and an extended polymeric phase that can be recovered at ambient condition. The phase diagram indicates a limited stability of Fe(CO)5 within a pressure-temperature dome formed below the liquid- phase II- polymer triple point at 4.2 GPa and 580 K. The limited stability, in turn, signifies the temperature-induced weakening of Fe-CO back bonds, which eventually leads to the dissociation of Fe-CO at the onset of the polymerization of CO. The recovered polymer is a composite of novel nm-lamellar layers of crystalline hematite Fe2O3 and amorphous carbon-oxygen polymers. These results, therefore, demonstrate the synthesis of carbon-oxygen polymer by compressing Fe(CO)5, which advocates a novel synthetic route to develop atomistic composite materials by compressing organometallic compounds.

  13. Experimental investigation of factors limiting slow axis beam quality in 9xx nm high power broad area diode lasers

    SciTech Connect (OSTI)

    Winterfeldt, M. Crump, P.; Wenzel, H.; Erbert, G.; Trnkle, G.

    2014-08-14

    GaAs-based broad-area diode lasers are needed with improved lateral beam parameter product (BPP{sub lat}) at high power. An experimental study of the factors limiting BPP{sub lat} is therefore presented, using extreme double-asymmetric (EDAS) vertical structures emitting at 910?nm. Continuous wave, pulsed and polarization-resolved measurements are presented and compared to thermal simulation. The importance of thermal and packaging-induced effects is determined by comparing junction -up and -down devices. Process factors are clarified by comparing diodes with and without index-guiding trenches. We show that in all cases studied, BPP{sub lat} is limited by a non-thermal BPP ground-level and a thermal BPP, which depends linearly on self-heating. Measurements as a function of pulse width confirm that self-heating rather than bias-level dominates. Diodes without trenches show low BPP ground-level, and a thermal BPP which depends strongly on mounting, due to changes in the temperature profile. The additional lateral guiding in diodes with trenches strongly increases the BPP ground-level, but optically isolates the stripe from the device edges, suppressing the influence of the thermal profile, leading to a BPP-slope that is low and independent of mounting. Trenches are also shown to initiate strain fields that cause parasitic TM-polarized emission with large BPP{sub lat}, whose influence on total BPP{sub lat} remains small, provided the overall polarization purity is >95%.

  14. Sub-10 nm Platinum Nanocrystals with Size and Shape Control: Catalytic Study for Ethylene and Pyrrole Hydrogenation

    SciTech Connect (OSTI)

    Tsung, Chia-Kuang; Kuhn, John N.; Huang, Wenyu; Aliaga, Cesar; Hung, Ling-I; Somorjai, Gabor A.; Yang, Peidong

    2009-03-02

    Platinum nanocubes and nanopolyhedra with tunable size from 5 to 9 nm were synthesized by controlling the reducing rate of metal precursor ions in a one-pot polyol synthesis. A two-stage process is proposed for the simultaneous control of size and shape. In the first stage, the oxidation state of the metal ion precursors determined the nucleation rate and consequently the number of nuclei. The reaction temperature controlled the shape in the second stage by regulation of the growth kinetics. These well-defined nanocrystals were loaded into MCF-17 mesoporous silica for examination of catalytic properties. Pt loadings and dispersions of the supported catalysts were determined by elemental analysis (ICP-MS) and H2 chemisorption isotherms, respectively. Ethylene hydrogenation rates over the Pt nanocrystals were independent of both size and shape and comparable to Pt single crystals. For pyrrole hydrogenation, the nanocubes enhanced ring-opening ability and thus showed a higher selectivity to n-butylamine as compared to nanopolyhedra.

  15. THE EVOLUTION OF SOLAR FLUX FROM 0.1 nm TO 160 {mu}m: QUANTITATIVE ESTIMATES FOR PLANETARY STUDIES

    SciTech Connect (OSTI)

    Claire, Mark W.; Sheets, John; Meadows, Victoria S.; Cohen, Martin; Ribas, Ignasi; Catling, David C.

    2012-09-20

    Understanding changes in the solar flux over geologic time is vital for understanding the evolution of planetary atmospheres because it affects atmospheric escape and chemistry, as well as climate. We describe a numerical parameterization for wavelength-dependent changes to the non-attenuated solar flux appropriate for most times and places in the solar system. We combine data from the Sun and solar analogs to estimate enhanced UV and X-ray fluxes for the young Sun and use standard solar models to estimate changing visible and infrared fluxes. The parameterization, a series of multipliers relative to the modern top of the atmosphere flux at Earth, is valid from 0.1 nm through the infrared, and from 0.6 Gyr through 6.7 Gyr, and is extended from the solar zero-age main sequence to 8.0 Gyr subject to additional uncertainties. The parameterization is applied to a representative modern day flux, providing quantitative estimates of the wavelength dependence of solar flux for paleodates relevant to the evolution of atmospheres in the solar system (or around other G-type stars). We validate the code by Monte Carlo analysis of uncertainties in stellar age and flux, and with comparisons to the solar proxies {kappa}{sup 1} Cet and EK Dra. The model is applied to the computation of photolysis rates on the Archean Earth.

  16. Ultraviolet relaxation dynamics of aniline, N, N-dimethylaniline and 3,5-dimethylaniline at 250 nm

    SciTech Connect (OSTI)

    Thompson, James O. F.; Saalbach, Lisa; Crane, Stuart W.; Paterson, Martin J.; Townsend, Dave

    2015-03-21

    Time-resolved photoelectron imaging was used to investigate the electronic relaxation dynamics of gas-phase aniline, N, N-dimethylaniline, and 3,5-dimethylaniline following ultraviolet excitation at 250 nm. Our analysis was supported by ab initio coupled-cluster calculations evaluating excited state energies and (in aniline) the evolution of a range of excited state physical properties as a function of N–H bond extension. Due to a lack of consistency between several earlier studies undertaken in aniline, the specific aim of this present work was to gain new insight into the previously proposed non-adiabatic coupling interaction between the two lowest lying singlet excited states S{sub 1}(ππ{sup ∗}) and S{sub 2}(3s/πσ{sup ∗}). The methyl-substituted systems N, N-dimethylaniline and 3,5-dimethylaniline were included in order to obtain more detailed dynamical information about the key internal molecular coordinates that drive the S{sub 1}(ππ{sup ∗})/S{sub 2}(3s/πσ{sup ∗}) coupling mechanism. Our findings suggest that in all three systems, both electronic states are directly populated during the initial excitation, with the S{sub 2}(3s/πσ{sup ∗}) state then potentially decaying via either direct dissociation along the N–X stretching coordinate (X = H or CH{sub 3}) or internal conversion to the S{sub 1}(ππ{sup ∗}) state. In aniline and N, N-dimethylaniline, both pathways most likely compete in the depletion of S{sub 2}(3s/πσ{sup ∗}) state population. However, in 3,5-dimethylaniline, only the direct dissociation mechanism appears to be active. This is rationalized in terms of changes in the relative rates of the two decay pathways upon methylation of the aromatic ring system.

  17. Amplitude Variability in gamma Dor and delta Sct Stars Observed...

    Office of Scientific and Technical Information (OSTI)

    Los Alamos National Laboratory Florida Institute of Technology, Melbourne, FL New Mexico State University, Las Cruces, NM Publication Date: 2015-10-19 OSTI Identifier: 1223775 ...

  18. Suppression of roll-off characteristics of organic light-emitting diodes by narrowing current injection/transport area to 50?nm

    SciTech Connect (OSTI)

    Hayashi, Kyohei Inoue, Munetomo; Yoshida, Kou; Nakanotani, Hajime; Mikhnenko, Oleksandr; Nguyen, Thuc-Quyen E-mail: adachi@cstf.kyushu-u.ac.jp; Adachi, Chihaya E-mail: adachi@cstf.kyushu-u.ac.jp

    2015-03-02

    Using e-beam nanolithography, the current injection/transport area in organic light-emitting diodes (OLEDs) was confined into a narrow linear structure with a minimum width of 50?nm. This caused suppression of Joule heating and partial separation of polarons and excitons, so the charge density where the electroluminescent efficiency decays to the half of the initial value (J{sub 0}) was significantly improved. A device with a narrow current injection width of 50?nm exhibited a J{sub 0} that was almost two orders of magnitude higher compared with that of the unpatterned OLED.

  19. Mathematical simulation of the amplification of 1790-nm laser radiation in a nuclear-excited He Ar plasma containing nanoclusters of uranium compounds

    SciTech Connect (OSTI)

    Kosarev, V A; Kuznetsova, E E

    2014-02-28

    The possibility of applying dusty active media in nuclearpumped lasers has been considered. The amplification of 1790-nm radiation in a nuclear-excited dusty He Ar plasma is studied by mathematical simulation. The influence of nanoclusters on the component composition of the medium and the kinetics of the processes occurring in it is analysed using a specially developed kinetic model, including 72 components and more than 400 reactions. An analysis of the results indicates that amplification can in principle be implemented in an active laser He Ar medium containing 10-nm nanoclusters of metallic uranium and uranium dioxide. (lasers)

  20. Exceptional activity of sub-nm Pt clusters on CdS for photocatalytic hydrogen production: A combined of experimental and first-principles study

    DOE Public Access Gateway for Energy & Science Beta (PAGES Beta)

    Wu, Qiyuan; Su, Dong; Xiong, Shangmin; Shen, Peichuan; Zhao, Shen; Li, Yan; Orlov, Alexander

    2014-12-24

    In this work we have explored a new concept of substantially increasing photocatalytic activity for H? production of conventional semiconductors by modifying them with sub-nm Pt particles. By combining both experimental and theoretical approaches, we have also developed new mechanistic insights into the 17 times increase in photocatalytic activity of Pt modified CdS catalysts.

  1. Exceptional activity of sub-nm Pt clusters on CdS for photocatalytic hydrogen production: A combined of experimental and first-principles study

    SciTech Connect (OSTI)

    Wu, Qiyuan; Su, Dong; Xiong, Shangmin; Shen, Peichuan; Zhao, Shen; Li, Yan; Orlov, Alexander

    2014-12-24

    In this work we have explored a new concept of substantially increasing photocatalytic activity for H₂ production of conventional semiconductors by modifying them with sub-nm Pt particles. By combining both experimental and theoretical approaches, we have also developed new mechanistic insights into the 17 times increase in photocatalytic activity of Pt modified CdS catalysts.

  2. Synthesis and characterization of 10?nm thick piezoelectric AlN films with high c-axis orientation for miniaturized nanoelectromechanical devices

    SciTech Connect (OSTI)

    Zaghloul, Usama; Piazza, Gianluca

    2014-06-23

    The scaling of piezoelectric nanoelectromechanical systems (NEMS) is challenged by the synthesis of ultrathin and high quality piezoelectric films on very thin electrodes. We report the synthesis and characterization of the thinnest piezoelectric aluminum nitride (AlN) films (10?nm) ever deposited on ultrathin platinum layers (25?nm) using reactive sputtering. X-ray diffraction, high-resolution transmission electron microscopy, and fast Fourier transform analyses confirmed the proper crystal orientation, fine columnar texture, and the continuous lattice structure within individual grains in the deposited AlN nanometer thick films. The average extracted d{sub 31} piezoelectric coefficient for the synthesized films is ?1.73 pC/N, which is comparable to the reported values for micron thick and highly c-axis oriented AlN films. The 10?nm AlN films were employed to demonstrate two different types of optimized piezoelectric nanoactuators. The unimorph actuators exhibit vertical displacements as large as 1.1??m at 0.7?V for 25??m long and 30?nm thick beams. These results have a great potential to realize miniaturized NEMS relays with extremely low voltage, high frequency resonators, and ultrasensitive sensors.

  3. Near-resonance enhanced O2 detection for dual-broadband pure rotational coherent anti-Stokes Raman scattering with an ultraviolet-visible setup at 266 nm

    SciTech Connect (OSTI)

    Schenk, Martin; Seeger, Thomas; Leipertz, Alfred

    2005-07-01

    Broadband and dual-broadband coherent anti-Stokes Raman scattering (CARS) are widely established tools for nonintrusive gas diagnostics. Up to now the investigations have been mainly performed for electronic nonresonant conditions of the gas species of interest. We report on the enhancement of the O2-N2 detection limit of dual-broadband pure rotational CARS by shifting the wavelength of the narrowband pump laser from the commonly used 532-266 nm. This enhancement is caused when the Schumann-Runge absorption band is approached near 176 nm. The principal concept of this experiment, i.e., covering the Raman resonance with a single- or dual-broadband combination of lasers in the visible range and moving only the narrowband probe laser near or directly into electronic resonant conditions in the UV range, should also be applicable to broadband CARS experiments to directly exploit electronic resonance effects for the purpose of single-shot concentration measurements of minority species. To quantify the enhancement in O2 sensitivity, comparative measurements at both a 266 and a 532 nm narrowband pump laser wavelength are presented, employing a 4-dicyanomethylene-2-methyl-6-(p-dimethylaminostyryl)-4H-pyram (DCM) dye laser as a broadband laser source at 635 nm. An increase of approximately 13% in the ratio of the rotational CARS cross sections of O2 and N2 was obtained. The broad spectral width of the CARS excitation profile was approximately equal for both setups. Further enhancement should be achievable by shifting the narrowband pump laser closer toward 176 nm, for example, with a frequency-doubled optical parametric oscillator or an excimer laser. The principal concept of this experiment should also be applicable to broadband CARS experiments to directly exploit electronic resonance effects of the narrowband pump laser with electronic transitions of minority species for the purpose of single-shot concentration measurements of those species.

  4. Tampa Electric Company - DOE IGCC project. Quarterly report, July 1 - September 30, 1996

    SciTech Connect (OSTI)

    1996-12-31

    The third quarter of 1996 has resulted in the completion of over five (5) years of extensive project development, design, construction and start-up of the 250 MW Polk Power Station Unit {number_sign}1 IGCC Project. the combined cycle performance test was completed on June 18, 1996. This test demonstrated that on distillate fuel, the combined cycle achieved a net output of 222,299 KW with a net heat rate of 6,868 BTU/KW. This is about 3.86% and 2.76% better than the guaranteed values of 214,040 KW and 7,063 BTU/KW respectively. During the third quarter of 1996, the combustion turbine was run on syngas two (2) different times for a combined total of about seven hours. Attachment {number_sign}4 shows graphically the transfer from oil to syngas. Emission levels were generally acceptable even though no specific emissions tuning was completed by GE and the emissions monitoring equipment was not yet completely operational.

  5. New Whole-House Case Study: William Ryan Homes, Tampa, Florida

    SciTech Connect (OSTI)

    none,

    2013-06-01

    The builder worked with Consortium for Advanced Residential Buildings to design HERS-65 homes with energy-efficient heat pumps and programmable thermostats with humidity controls, foam-filled concrete block walls, draining house wrap, and airsealed kneewalls.

  6. New Whole-House Solutions Case Study: William Ryan Homes, Tampa...

    Energy Savers [EERE]

    as standard practice in all of its new homes. Building America's Consortium for Advanced Residential Buildings (CARB) analyzed nine new house designs by the builder and found ...

  7. Results of High Velocity Tests at Tampa Electric Company`s Big Bend 4 FGD System.

    SciTech Connect (OSTI)

    DeKraker, D.P.

    1997-10-15

    Test were conducted at the Big Bend Station to determine the feasibility of scrubbing gas from an additional boiler in the existing FGD system. Testing was accomplished by increasing the gas flow from the D absorber tower and measuring the performance of this module. Key performance aspects evaluated during the testing include mist eliminator performance, SO2 removal efficiency, oxidation of absorbed SO2, and limestone utilization.

  8. Optimized Bose-Einstein-condensate production in a dipole trap based on a 1070-nm multifrequency laser: Influence of enhanced two-body loss on the evaporation process

    SciTech Connect (OSTI)

    Lauber, T.; Kueber, J.; Wille, O.; Birkl, G.

    2011-10-15

    We present an optimized strategy for the production of tightly confined Bose-Einstein condensates (BEC) of {sup 87}Rb in a crossed dipole trap with direct loading from a magneto-optical trap. The dipole trap is created with light of a multifrequency fiber laser with a center wavelength of 1070 nm. Evaporative cooling is performed by ramping down the laser power only. A comparison of the resulting atom number in an almost pure BEC to the initial atom number and the value for the gain in phase space density per atom lost confirm that this straightforward strategy is very efficient. We observe that the temporal characteristics of evaporation sequence are strongly influenced by power-dependent two-body losses resulting from enhanced optical pumping to the higher-energy hyperfine state. We characterize these losses and compare them to results obtained with a single-frequency laser at 1030 nm.

  9. High-Resolution PFPE-based Molding Techniques for Nanofabrication of High-Pattern Density, Sub-20 nm Features: A Fundamental Materials Approach

    SciTech Connect (OSTI)

    Williams, Stuart S.; Retterer, Scott; Lopez, Rene; Ruiz, Ricardo; Samulski, Edward T.; DeSimone, Joseph M.

    2010-04-14

    Several perfluoropolyether (PFPE)-based elastomers for high-resolution replica molding applications are explored. The modulus of the elastomeric materials was increased through synthetic and additive approaches while maintaining relatively low surface tension values (<25 mN/m). Using large area (>4 in.{sup 2}) master templates, we experimentally show the relationship between mold resolution and material properties such as modulus and surface tension for materials used in this study. A composite mold approach was used to form flexible molds out of stiff, high modulus materials that allow for replication of sub-20 nm post structures. Sub-100 nm line grating master templates, formed using e-beam lithography, were used to determine the experimental stability of the molding materials. It was observed that as the feature spacing decreased, high modulus PFPE tetramethacrylate (TMA) composite molds were able to effectively replicate the nanograting structures without cracking or tear-out defects that typically occur with high modulus elastomers.

  10. 1.9 W continuous-wave single transverse mode emission from 1060?nm edge-emitting lasers with vertically extended lasing area

    SciTech Connect (OSTI)

    Miah, M. J. Posilovic, K.; Kalosha, V. P.; Rosales, R.; Bimberg, D.; Kettler, T.; Skoczowsky, D.; Pohl, J.; Weyers, M.

    2014-10-13

    High-brightness edge-emitting semiconductor lasers having a vertically extended waveguide structure emitting in the 1060?nm range are investigated. Ridge waveguide (RW) lasers with 9??m stripe width and 2.64?mm cavity length yield highest to date single transverse mode output power for RW lasers in the 1060?nm range. The lasers provide 1.9 W single transverse mode optical power under continuous-wave (cw) operation with narrow beam divergences of 9 in lateral and 14 (full width at half maximum) in vertical direction. The beam quality factor M{sup 2} is less than 1.9 up to 1.9 W optical power. A maximum brightness of 72 MWcm{sup ?2}sr{sup ?1} is obtained. 100??m wide and 3?mm long unpassivated broad area lasers provide more than 9 W optical power in cw operation.

  11. Strong carrier localization effect in carrier dynamics of 585 nm InGaN amber light-emitting diodes

    SciTech Connect (OSTI)

    Li, Panpan; Li, Hongjian; Li, Zhi; Kang, Junjie; Yi, Xiaoyan; Li, Jinmin; Wang, Guohong

    2015-02-21

    Temperature dependence and time-resolved photoluminescence (TRPL) have been carried out to study carrier dynamics for 585 nm InGaN amber light-emitting diodes (LEDs). It is found that in InGaN amber LEDs, peak emission energy only shows a slight blueshift from 588 to 575 nm, as temperature increased from 10 K to 300 K. Moreover, radiative recombination lifetime has demonstrated independent of temperature based TRPL results. These two features indicate that a strong carrier localization effect plays a dominant role in carrier dynamics for InGaN amber LEDs. Also, activation energy of 40.3 meV is obtained through Arrhenius plot of PL intensity versus temperature.

  12. Simultaneous near-field and far-field imaging of the 11.9-nm Ni-like Sn soft-x-ray laser

    SciTech Connect (OSTI)

    Staub, F.; Braud, M.; Balmer, J.E.; Nilsen, J.; Bajt, S.

    2004-07-01

    We report on two-dimensional near-field imaging experiments of the 11.9-nm Sn x-ray laser that were performed with a set of Mo/Y multilayer mirrors having reflectivities of up to {approx}45% at normal and at 45 deg. incidence. Second-moment analysis of the x-ray laser emission was used to determine values of the x-ray beam propagation factor M{sup 2} for a range of irradiation parameters. The results reveal a reduction of M{sup 2} with increasing prepulse amplitude. The spatial size of the output is a factor of {approx}2 smaller than previously measured for the 14.7-nm Pd x-ray laser, while the distance of the x-ray emission with respect to the target surface remains roughly the same.

  13. Linear and nonlinear transmission of Fe{sup 2+}-doped ZnSe crystals at a wavelength of 2940 nm in the temperature range 20220 C

    SciTech Connect (OSTI)

    Il'ichev, N N; Pashinin, P P; Gulyamova, E S; Bufetova, G A; Shapkin, P V; Nasibov, A S

    2014-03-28

    The linear and nonlinear transmission of Fe{sup 2+}:ZnSe crystals is measured at a wavelength of 2940 nm in the temperature range 20 220 C. It is found that, with increasing temperature from 20 C to 150 220 C, the transmission of Fe{sup 2+}:ZnSe crystals decreases in the case of incident radiation with an intensity of ?5.5 MW cm{sup -2} and increases in the case of radiation with an intensity of 28 kW cm{sup -2}. At a temperature of 220 C, the linear transmission almost coincides with the nonlinear transmission. The transmission spectra of Fe{sup 2+}:ZnSe crystals at temperatures of 22 and 220 C in the wavelength range 500 7000 nm are presented. (active media)

  14. Gas-phase photodissociation of CH{sub 3}COCN at 308 nm by time-resolved Fourier-transform infrared emission spectroscopy

    SciTech Connect (OSTI)

    Yeh, Yu-Ying; Chao, Meng-Hsuan; Tsai, Po-Yu; Chang, Yuan-Bin; Tsai, Ming-Tsang; Lin, King-Chuen

    2012-01-28

    By using time-resolved Fourier-transform infrared emission spectroscopy, the fragments of HCN(v= 1, 2) and CO(v= 1-3) are detected in one-photon dissociation of acetyl cyanide (CH{sub 3}COCN) at 308 nm. The S{sub 1}(A'), {sup 1}(n{sub O}, {pi}*{sub CO}) state at 308 nm has a radiative lifetime of 0.46 {+-} 0.01 {mu}s, long enough to allow for Ar collisions that induce internal conversion and enhance the fragment yields. The rate constant of Ar collision-induced internal conversion is estimated to be (1-7) x 10{sup -12} cm{sup 3} molecule{sup -1} s{sup -1}. The measurements of O{sub 2} dependence exclude the production possibility of these fragments via intersystem crossing. The high-resolution spectra of HCN and CO are analyzed to determine the ro-vibrational energy deposition of 81 {+-} 7 and 32 {+-} 3 kJ/mol, respectively. With the aid of ab initio calculations, a two-body dissociation on the energetic ground state is favored leading to HCN + CH{sub 2}CO, in which the CH{sub 2}CO moiety may further undergo secondary dissociation to release CO. The production of CO{sub 2} in the reaction with O{sub 2} confirms existence of CH{sub 2} and a secondary reaction product of CO. The HNC fragment is identified but cannot be assigned, as restricted to a poor signal-to-noise ratio. Because of insufficient excitation energy at 308 nm, the CN and CH{sub 3} fragments that dominate the dissociation products at 193 nm are not detected.

  15. Low Group Delay Dispersion Optical Coating for Broad Bandwidth High Reflection at 45° Incidence, P Polarization of Femtosecond Pulses with 900 nm Center Wavelength

    DOE Public Access Gateway for Energy & Science Beta (PAGES Beta)

    Bellum, John C.; Field, Ella S.; Winstone, Trevor B.; Kletecka, Damon E.

    2016-03-01

    We describe an optical coating design suitable for broad bandwidth high reflection (BBHR) at 45° angle of incidence (AOI), P polarization (Ppol) of femtosecond (fs) laser pulses whose wavelengths range from 800 to 1000 nm. The design process is guided by quarter-wave HR coating properties. Our design must afford low group delay dispersion (GDD) for reflected light over the broad, 200 nm bandwidth in order to minimize temporal broadening of the fs pulses due to dispersive alteration of relative phases between their frequency components. The design should also be favorable to high laser-induced damage threshold (LIDT). We base the coatingmore » on TiO2/SiO2 layer pairs produced by means of e-beam evaporation with ion-assisted deposition, and use OptiLayer Thin Film Software to explore designs starting with TiO2/SiO2 layers having thicknesses in a reverse chirped arrangement. This approach led to a design with R > 99% from 800 to 1000 nm and GDD < 20 fs2 from 843 to 949 nm (45° AOI, Ppol). The design’s GDD behaves in a smooth way, suitable for GDD compensation techniques, and its electric field intensities show promise for high LIDTs. Reflectivity and GDD measurements for the initial test coating indicate good performance of the BBHR design. Subsequent coating runs with improved process calibration produced two coatings whose HR bands satisfactorily meet the design goals. Lastly, for the sake of completeness, we summarize our previously reported transmission spectra and LIDT test results with 800 ps, 8 ps and 675 fs pulses for these two coatings, and present a table of the LIDT results we have for all of our TiO2/SiO2 BBHR coatings, showing the trends with test laser pulse duration from the ns to sub-ps regimes.« less

  16. Comparison of 20 nm silver nanoparticles synthesized with and without a gold core. Structure, dissolution in cell culture media, and biological impact on macrophages

    SciTech Connect (OSTI)

    Munusamy, Prabhakaran; Wang, Chongmin; Engelhard, Mark H.; Baer, Donald R.; Smith, Jordan N.; Liu, Chongxuan; Kodali, Vamsi K.; Thrall, Brian D.; Chen, Shu; Porter, Alexandra E.; Ryan, Mary P.

    2015-07-15

    Widespread use of silver nanoparticles raises questions of environmental impact and toxicity. Both silver particles and silver ions formed by particle dissolution may impact biological systems. Therefore it is important to understand the characteristics of silver nanoparticles and their stability in relevant media. The synthesis route can impact physical and chemical characteristics of the particles and we report the characterization and solution stability of three types of silver nanoparticles (20 nm particles with and without gold cores and 110 nm particles with gold cores) in cell culture media with serum proteins: FBS10%/RPMI. These nanoparticles were synthesized in aqueous solution and characterized using both in situ and ex situ analysis methods. Dissolution studies were carried at particle concentrations from 1 µg/ml to 50 µg/ml. Particles with gold cores had smaller crystallite size and higher apparent solubility than pure silver particles. A dissolution model was found to describe the time variation of particle size and amount of dissolved silver for particle loadings above 9 µg/ml. An effective solubility product obtained from fitting the data was higher for the 20 nm gold core particles in comparison to the pure silver or 110 nm particles. Dissolution of the nanoparticles was enhanced by presence of serum proteins contained in fetal bovine serum. In addition, the protocol of the dispersion in the medium was found to influence particle agglomeration and dissolution. Results show that particle structure can impact the concentration of dissolved silver and the dose to which cells would be exposed during in vitro studies.

  17. Comparison of 20 nm silver nanoparticles synthesized with and without a gold core. Structure, dissolution in cell culture media, and biological impact on macrophages

    DOE Public Access Gateway for Energy & Science Beta (PAGES Beta)

    Munusamy, Prabhakaran; Wang, Chongmin; Engelhard, Mark H.; Baer, Donald R.; Smith, Jordan N.; Liu, Chongxuan; Kodali, Vamsi K.; Thrall, Brian D.; Chen, Shu; Porter, Alexandra E.; et al

    2015-07-15

    Widespread use of silver nanoparticles raises questions of environmental impact and toxicity. Both silver particles and silver ions formed by particle dissolution may impact biological systems. Therefore it is important to understand the characteristics of silver nanoparticles and their stability in relevant media. The synthesis route can impact physical and chemical characteristics of the particles and we report the characterization and solution stability of three types of silver nanoparticles (20 nm particles with and without gold cores and 110 nm particles with gold cores) in cell culture media with serum proteins: FBS10%/RPMI. These nanoparticles were synthesized in aqueous solution andmore » characterized using both in situ and ex situ analysis methods. Dissolution studies were carried at particle concentrations from 1 µg/ml to 50 µg/ml. Particles with gold cores had smaller crystallite size and higher apparent solubility than pure silver particles. A dissolution model was found to describe the time variation of particle size and amount of dissolved silver for particle loadings above 9 µg/ml. An effective solubility product obtained from fitting the data was higher for the 20 nm gold core particles in comparison to the pure silver or 110 nm particles. Dissolution of the nanoparticles was enhanced by presence of serum proteins contained in fetal bovine serum. In addition, the protocol of the dispersion in the medium was found to influence particle agglomeration and dissolution. Results show that particle structure can impact the concentration of dissolved silver and the dose to which cells would be exposed during in vitro studies.« less

  18. MaRIE 1.0: A briefing to Katherine Richardson-McDaniel, Staff Member for U. S. Senator Martin Heinrich (D-NM)

    SciTech Connect (OSTI)

    Barnes, Cris William

    2015-02-24

    At the request of Katherine Richardson-McDaniel, Staff Member to U.S. Senator Martin Heinrich (D-NM), a high-level briefing was requested about MaRIE 1.0, the Matter-Radiation Interactions in Extremes effort at Los Alamos National Laboratory. What it would be, the mission need motivation, the scientific challenge, and the current favorable impact on both programs and people are shown in viewgraph form.

  19. Comprehensive Characterization of Voids and Microstructure in TATB-based Explosives from 10 nm to 1 cm: Effects of Temperature Cycling and Compressive Creep

    SciTech Connect (OSTI)

    Willey, T M; Lauderbach, L; Gagliardi, F; Cunningham, B; Lorenz, K T; Lee, J I; van Buuren, T; Call, R; Landt, L; Overturf, G

    2010-02-26

    This paper outlines the characterization of voids and Microstructure in TATB-based Explosives over several orders of magnitude, from sizes on the order of 10 nm to about 1 cm. This is accomplished using ultra small angle x-ray scattering to investigate voids from a few nm to a few microns, ultra small angle neutron scattering for voids from 100 nm to 10 microns, and x-ray computed microtomography to investigate microstructure from a few microns to a few centimeters. The void distributions of LX-17 are outlined, and the microstructure of LX-17 is presented. Temperature cycling and compressive creep cause drastically different damage to the microstructure. Temperature cycling leads to a volume expansion (ratchet growth) in TATB-based explosives, and x-ray scattering techniques that are sensitive to sizes up to a few microns indicated changes to the void volume distribution that had previously accounted for most, but not all of the change in density. This paper presents the microstructural damage larger than a few microns caused by ratchet growth. Temperature cycling leads to void creation in the binder poor regions associated with the interior portion of formulated prills. Conversely, compressive creep causes characteristically different changes to microstructure; fissures form at binder-rich prill boundaries prior to mechanical failure.

  20. Fabrication of nanoscale patterns in lithium fluoride crystal using a 13.5 nm Schwarzschild objective and a laser produced plasma source

    SciTech Connect (OSTI)

    Wang Xin; Mu Baozhong; Jiang Li; Zhu Jingtao; Yi Shengzhen; Wang Zhanshan; He Pengfei

    2011-12-15

    Lithium fluoride (LiF) crystal is a radiation sensitive material widely used as EUV and soft x-ray detector. The LiF-based detector has high resolution, in principle limited by the point defect size, large field of view, and wide dynamic range. Using LiF crystal as an imaging detector, a resolution of 900 nm was achieved by a projection imaging of test meshes with a Schwarzschild objective operating at 13.5 nm. In addition, by imaging of a pinhole illuminated by the plasma, an EUV spot of 1.5 {mu}m diameter in the image plane of the objective was generated, which accomplished direct writing of color centers with resolution of 800 nm. In order to avoid sample damage and contamination due to the influence of huge debris flux produced by the plasma source, a spherical normal-incidence condenser was used to collect EUV radiation. Together with a description of experimental results, the development of the Schwarzschild objective, the influence of condenser on energy density and the alignment of the imaging system are also reported.

  1. Sub-10 nm lanthanide doped BaLuF{sub 5} nanocrystals: Shape controllable synthesis, tunable multicolor emission and enhanced near-infrared upconversion luminescence

    SciTech Connect (OSTI)

    Rao, Ling; Lu, Wei; Wang, Haibo; Yi, Zhigao; Zeng, Songjun; Li, Zheng

    2015-04-15

    Highlights: • Sub-10 nm cubic phase BaLuF{sub 5} nanocrystals were synthesized by a hydrothermal method for the first time. • Tunable multicolor from yellow to yellow-green was achieved by controlling Gd{sup 3+} content in BaLuF{sub 5}:Yb/Er system. • Intense near-infrared upconversion luminescence in BaLuF{sub 5}:Gd/Yb/Tm nanocrystal. • The enhancement near-infrared luminescence can be realized by adjusting the content of Gd{sup 3+} in BaLuF{sub 5}:Gd/Yb/Tm system. - Abstract: In this study, sub-10 nm BaLuF{sub 5} nanocrystals with cubic phase structure were synthesized by a solvothermal method using oleic acid as the stabilizing agent. The as-prepared BaLuF{sub 5} nanocrystals were characterized by transmission electron microscopy (TEM), X-ray diffraction (XRD), and analyzed by the upconversion (UC) spectra. The TEM results reveal that these samples present high uniformity. Compared with Gd-free samples, the size of BaLuF{sub 5}:Yb/Er doped with 10% Gd{sup 3+} decreased to 5.6 nm. In addition, BaLuF{sub 5}:Yb/Tm/Gd upconversion nanoparticles (UCNPs) presented efficient near-infrared (NIR)-NIR UC luminescence. Therefore, it is expected that these ultra-small BaLuF{sub 5} nanocrystals with well-controlled shape, size, and UC emission have potential applications in biomedical imaging fields.

  2. Absorption enhancement through Fabry-Prot resonant modes in a 430?nm thick InGaAs/GaAsP multiple quantum wells solar cell

    SciTech Connect (OSTI)

    Behaghel, B.; Tamaki, R.; Watanabe, K.; Sodabanlu, H.; Vandamme, N.; Dupuis, C.; Bardou, N.; Cattoni, A.; Okada, Y.; Sugiyama, M.; Collin, S.; Guillemoles, J.-F.

    2015-02-23

    We study light management in a 430?nm-thick GaAs p-i-n single junction solar cell with 10 pairs of InGaAs/GaAsP multiple quantum wells (MQWs). The epitaxial layer transfer on a gold mirror improves light absorption and increases the external quantum efficiency below GaAs bandgap by a factor of four through the excitation of Fabry-Perot resonances. We show a good agreement with optical simulation and achieve around 10% conversion efficiency. We demonstrate numerically that this promising result can be further improved by anti-reflection layers. This study paves the way to very thin MQWs solar cells.

  3. Hard x-ray contact microscopy with 250 nm spatial resolution using a LiF film detector and a tabletop microsource

    SciTech Connect (OSTI)

    Almaviva, S.; Bonfigli, F.; Franzini, I.; Lai, A.; Montereali, R. M.; Pelliccia, D.; Cedola, A.; Lagomarsino, S.

    2006-07-31

    An innovative route for deep-submicrometer spatial resolution hard x-ray microscopy with tabletop x-ray source is proposed. A film of lithium fluoride (LiF) was used as imaging detector in contact mode. We present here the x-ray images recorded on LiF films of a Fresnel zone plate with submicrometer gold structures and of an onion cataphyll. The images were read with an optical confocal microscope in fluorescence mode. The measured spatial resolution was about 250 nm, i.e., close to the resolution limit of the confocal microscope. The advantages and drawbacks, and the possible improvements, of this route are discussed.

  4. Observation of coupled vortex gyrations by 70-ps-time and 20-nm-space- resolved full-field magnetic transmission soft x-ray microscopy

    SciTech Connect (OSTI)

    Jung, Hyunsung; Yu, Young-Sang; Lee, Ki-Suk; Im, Mi-Young; Fischer, Peter; Bocklage, Lars; Vogel, Andreas; Bolte, Markus; Meier, Guido; Kim, Sang-Koog

    2010-09-01

    We employed time-and space-resolved full-field magnetic transmission soft x-ray microscopy to observe vortex-core gyrations in a pair of dipolar-coupled vortex-state Permalloy (Ni{sub 80}Fe{sub 20}) disks. The 70 ps temporal and 20 nm spatial resolution of the microscope enabled us to simultaneously measure vortex gyrations in both disks and to resolve the phases and amplitudes of both vortex-core positions. We observed their correlation for a specific vortex-state configuration. This work provides a robust and direct method of studying vortex gyrations in dipolar-coupled vortex oscillators.

  5. Watch copper deposited in a chemical reaction at the nanoscale | Argonne

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    the Year Award | Department of Energy Wastren-EnergX Mission Support Wins 8(a)/Small Disadvantaged Business of the Year Award Wastren-EnergX Mission Support Wins 8(a)/Small Disadvantaged Business of the Year Award September 23, 2014 - 9:40am Addthis Damon Detillion, Project Manager for Wastren-EnergX Mission Support, Accepts 8(a)/Small Disadvantaged Business of the Year Award from OSDBU Director John Hale, June 12, 2014, Tampa, FL Damon Detillion, Project Manager for Wastren-EnergX Mission

  6. Wastren-EnergX Mission Support Wins 8(a)/Small Disadvantaged Business of

    Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

    the Year Award | Department of Energy Wastren-EnergX Mission Support Wins 8(a)/Small Disadvantaged Business of the Year Award Wastren-EnergX Mission Support Wins 8(a)/Small Disadvantaged Business of the Year Award September 23, 2014 - 9:40am Addthis Damon Detillion, Project Manager for Wastren-EnergX Mission Support, Accepts 8(a)/Small Disadvantaged Business of the Year Award from OSDBU Director John Hale, June 12, 2014, Tampa, FL Damon Detillion, Project Manager for Wastren-EnergX Mission

  7. The Eleventh Annual Solid-State Lighting R&D Workshop | Department of

    Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

    Energy Eleventh Annual Solid-State Lighting R&D Workshop The Eleventh Annual Solid-State Lighting R&D Workshop Photo of a hotel ballroom with people seated at long tables. Two hundred researchers, manufacturers, and other industry insiders and observers gathered in Tampa, FL, January 28-30, 2014, to participate in DOE's 11th annual Solid-State Lighting (SSL) R&D Workshop. DOE SSL Program Manager James Brodrick kicked off Day 1 by reminding attendees that it takes time to achieve

  8. EIS-0383: Southern Company's Orlando Gasification Project, Orlando, FL

    Broader source: Energy.gov [DOE]

    This EIS analyzes DOE's decision to provide cost-shared funding for construction, design, and operation of a new gasification plant in Orlando, Florida.

  9. St. Petersburg, FL: Vehicle Use of Recycled Natural Gas Derived...

    Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

    (1.58 MB) More Documents & Publications Biogas Opportunities Roadmap CX-010223: Categorical Exclusion Determination Biogas Opportunities Roadmap Progress Report

  10. FL_11_29_10.pdf | Department of Energy

    Broader source: Energy.gov (indexed) [DOE]

    October 2008 | Department of Energy External Independent Review (EIR) Standard Operating Procedure (SOP) October 2008 (344.05 KB) More Documents & Publications Protocol_for_Environmental_Management_Cleanup_Projects_(clean).pdf Contractor Statement of Work (SOW) Template (for EIR) External Independent Review (EIR) Standard Operating Procedure (SOP) September 2010 September 2010 | Department of Energy

    73

    September 2010 | Department of Energy

    39

    Department of

  11. Best Practices Case Study: Tommy Williams Homes -Gainesville, FL

    SciTech Connect (OSTI)

    none,

    2011-04-01

    Case study of Tommy Williams Homes who has continued to outsell the competition with sales increasing despite the recession thanks to a systems-engineering approach developed with DOE’s Building America that yields high energy efficiency, comfort, and indoor air quality. The company offers to pay buyers’ energy bills for the first year.

  12. J31317-1 Fl_L2 Final Report

    Office of Legacy Management (LM)

    These test results meet all the requirements of NELAC unless specified in the case narrative. All questions regarding this test report should be directed to the TestAmerica Project ...

  13. J28316-1 Fl_L2 Final Report

    Office of Legacy Management (LM)

    These test results meet all the requirements of NELAC unless specified in the case narrative. All questions regarding this test report should be directed to the TestAmerica Project ...

  14. J25097-1 Fl_L2 Final Report

    Office of Legacy Management (LM)

    E84282, E81005, E81010 These test results meet all the requirements of NELAC unless specified in the case narrative. All questions regarding this test report should be directed to ...

  15. File:EIA-FL-GAS.pdf | Open Energy Information

    Open Energy Info (EERE)

    applicationpdf) Description South Florida Peninsula By 2001 Gas Reserve Class Sources Energy Information Administration Authors Samuel H. Limerick; Lucy Luo; Gary Long; David F....

  16. S M Stoller Star Center-WWNA Monthly; Largo, FL

    Office of Legacy Management (LM)

    ... anr Chromium 10 .4 anr Cobalt 50 .5 anr Copper 25 .44 anr Iron 300 7.1 anr Lead 5.0 1.2 ... anr Calcium anr Chromium anr Cobalt anr Copper anr Iron anr Lead anr Magnesium anr ...

  17. S M Stoller Star Center-WWNA Monthly; Largo, FL

    Office of Legacy Management (LM)

    ... 1000 3.8 Chromium 10 .4 Cobalt 50 .5 Copper 25 .4 Iron 300 7.1 anr Lead 5.0 1.2 anr ... Beryllium Cadmium Calcium Chromium Cobalt Copper Iron anr Lead anr Magnesium Manganese ...

  18. S M Stoller Star Center-WWNA Monthly; Largo, FL

    Office of Legacy Management (LM)

    ... 1000 3.8 Chromium 10 .4 Cobalt 50 .5 Copper 25 .44 anr Iron 300 7.1 anr Lead 5.0 1.2 ... Beryllium Cadmium Calcium Chromium Cobalt Copper anr Iron anr Lead anr Magnesium anr ...

  19. S M Stoller Star Center-WWNA Monthly; Largo, FL

    Office of Legacy Management (LM)

    ... anr Chromium 10 .5 anr Cobalt 50 .5 anr Copper 25 .4 anr Iron 300 16 anr Lead 5.0 1.2 ... anr Calcium anr Chromium anr Cobalt anr Copper anr Iron anr Lead anr Magnesium anr ...

  20. City of Quincy, FL Smart Grid Project | Open Energy Information

    Open Energy Info (EERE)

    (SCADA) and load control systems to Quincy's distribution system, and 3) adding demand response programs to all customer classes including programmable communicating...

  1. STUTCO","SN","LN","CL","FL","AMOUNT","SCHEDULE","UTNAME","YEAROFDAT

    U.S. Energy Information Administration (EIA) Indexed Site

    ... 1600009187,01,001,1,1,000137324699,"ID 10610","Idaho Falls City of",98 ...001,1,1,000040367779,"TX 10610","College Station City of",98 4800003940,01,002,1,1,0000060...

  2. seca-core-tech-prw-fl | netl.doe.gov

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    SECA Core Technology Peer Review Workshop January 27-28, 2005 Table of Contents Disclaimer Participants [PDF-21.4KB] Papers and Presentations Fuel Processing Modeling and Simulation Power Electronics, Controls & Diagnostics Special Topics Electrodes Seals Interconnects Posters Peer Review Rating Results Summary [PDF-457KB] Disclaimer This report was prepared as an account of work sponsored by an agency of the United States Government. Neither the United States Government or any agency

  3. TRIBAL ISSUES TOPIC GROUP MEETING SUMMARY JACKSONVILLE, FL

    Office of Environmental Management (EM)

    also discussed the research that has been conducted on the issue of developing a "umbrella grant" from DOE to states and tribes. Tribes concerns differ from State concerns...

  4. DarkHorse a Proposed Peta(FL)OP Architecture

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    a variety of microprocessors, computationally efficient for LANL algorithms, and straightforward to program. Balanced First Principle Minimizing time to solution for LANL...

  5. Workplace Charging Challenge Partner: Broward County, FL | Department...

    Energy Savers [EERE]

    The county-wide implementation strategy aims at providing PEV charging stations for county employees and expanding the public charging infrastructure in Broward County through ...

  6. File:EIA-FL-LIQ.pdf | Open Energy Information

    Open Energy Info (EERE)

    Samuel H. Limerick; Lucy Luo; Gary Long; David F. Morehouse; Jack Perrin; Robert F. King Related Technologies Oil, Natural Gas Creation Date 2005-09-01 Extent Regional...

  7. File:EIA-FL-BOE.pdf | Open Energy Information

    Open Energy Info (EERE)

    Samuel H. Limerick; Lucy Luo; Gary Long; David F. Morehouse; Jack Perrin; Robert F. King Related Technologies Oil, Natural Gas Creation Date 2005-09-01 Extent Regional...

  8. DOE ZERH Case Study: Sunroc Builders, Bates Avenue, Lakeland, FL

    SciTech Connect (OSTI)

    none,

    2015-09-01

    Case study of a DOE 2015 Housing Innovation Award winning affordable home in the hot-humid climate that got HERS 57 without PV, with 6.5” SIP walls and 8.25” SIP roof; uninsulated slab foundation; fresh air intake; SEER 16 ducted air source heat pump.

  9. Towards sub-200 nm nano-structuring of linear giant magneto-resistive spin valves by a direct focused ion beam milling process

    SciTech Connect (OSTI)

    Riedmüller, Benjamin; Huber, Felix; Herr, Ulrich

    2014-02-14

    In this work, we present a detailed investigation of a focused ion beam (FIB) assisted nano-structuring process for giant magneto-resistive (GMR) spin valve sensors. We have performed a quantitative study of the dependence of the GMR ratio as well as the sensor resistance on the ion dose, which is implanted in the active region of our sensors. These findings are correlated with the decrease of magneto-resistive properties after micro- and nano-structuring by the FIB and reveal the importance of ion damage which limits the applicability of FIB milling to GMR devices in the low μm range. Deposition of a protective layer (50 nm SiO{sub 2}) on top of the sensor structure before milling leads to a preservation of the magneto-resistive properties after the milling procedure down to sensor dimensions of ∼300 nm. The reduction of the sensor dimensions to the nanometer regime is accompanied by a shift of the GMR curves, and a modification of the saturation behavior. Both effects can be explained by a micromagnetic model including the magnetic interaction of free and pinned layer as well as the effect of the demagnetizing field of the free layer on the sensor behavior. The results demonstrate that the FIB technology can be successfully used to prepare spintronic nanostructures.

  10. Direct Aqueous-Phase Synthesis of Sub-10 nm “Luminous Pearls” with Enhanced in Vivo Renewable Near-Infrared Persistent Luminescence

    DOE Public Access Gateway for Energy & Science Beta (PAGES Beta)

    Li, Zhanjun; Zhang, Yuanwei; Wu, Xiang; Huang, Ling; Li, Dongsheng; Fan, Wei; Han, Gang

    2015-04-02

    Near-infrared (NIR) persistent luminescence nanoparticles (PLNPs), possessing unique NIR PL properties, have recently emerged as important materials for a wide variety of applications in chemistry and biology, for which they must endure high-temperature solid-state annealing reactions and subsequent complicated physical post-treatments. Herein, we report on a first direct aqueous-phase chemical synthesis route to NIR PLNPs and present their enhanced in vivo renewable NIR PL. Our method leads to monodisperse PLNPs as small as ca. 8 nm. Such sub-10 nm nanocrystals are readily dispersed and functionalized, and can form stable colloidal solutions in aqueous solution and cell culture medium for biologicalmore » applications. Under biotissue-penetrable red-light excitation, we found that such nanocrystals possess superior renewable PL photoluminescence in vitro and in vivo compared to their larger counterparts currently made by existing methods. In conclusion, we believe that this solid-state-reaction-free chemical approach overcomes the current key roadblock in regard to PLNP development, and thus will pave the way to broad use of these advanced miniature “luminous pearls” in photonics and biophotonics.« less

  11. NM, East Proved Nonproducing Reserves

    U.S. Energy Information Administration (EIA) Indexed Site

    149 180 185 232 304 460 1996-2014 Lease Condensate (million bbls) 12 16 18 29 25 15 1998-2014 Total Gas (billion cu ft) 1,052 1,216 1,358 1,306 1,447 2,085 1996-2014 Nonassociated Gas (billion cu ft) 649 664 701 660 434 478 1996-2014 Associated Gas (billion cu ft) 403 552 657 646 1,013 1,607

  12. NM, West Proved Nonproducing Reserves

    U.S. Energy Information Administration (EIA) Indexed Site

    0 0 0 0 10 29 1996-2014 Lease Condensate (million bbls) 1 1 4 4 3 5 1998-2014 Total Gas (billion cu ft) 2,732 2,384 2,098 1,349 951 945 1996-2014 Nonassociated Gas (billion cu ft) 2,727 2,379 2,093 1,345 935 899 1996-2014 Associated Gas (billion cu ft) 5 5 5 4 16 46

  13. A Pixel Readout Chip in 40 nm CMOS Process for High Count Rate Imaging Systems with Minimization of Charge Sharing Effects

    SciTech Connect (OSTI)

    Maj, Piotr; Grybos, P.; Szczgiel, R.; Kmon, P.; Drozd, A.; Deptuch, G.

    2013-11-07

    We present a prototype chip in 40 nm CMOS technology for readout of hybrid pixel detector. The prototype chip has a matrix of 18x24 pixels with a pixel pitch of 100 ?m. It can operate both in single photon counting (SPC) mode and in C8P1 mode. In SPC the measured ENC is 84 e? rms (for the peaking time of 48 ns), while the effective offset spread is below 2 mV rms. In the C8P1 mode the chip reconstructs full charge deposited in the detector, even in the case of charge sharing, and it identifies a pixel with the largest charge deposition. The chip architecture and preliminary measurements are reported.

  14. Holographic recording and characterization of photorefractive Bi{sub 2}TeO{sub 5} crystals at 633?nm wavelength light

    SciTech Connect (OSTI)

    Oliveira, Ivan de

    2014-04-28

    We report on the holographic recording on photorefractive Bi{sub 2}TeO{sub 5} crystals using ?=633 nm wavelength light. We studied the behavior of this material under the action of this low photonic energy light and found out the presence of a fast and a slow hologram, both of photorefractive nature and exhibiting rather high diffraction efficiencies. The faster and the slower holograms are based on the excitation and diffusion of oppositely charged carriers (likely electrons and holes). Relevant parameters for the photoactive centers responsible for both kind of holograms were characterized using purely holographic techniques. No evidences of non-photosensitive ionic charge carriers being involved in the recording process at room temperature nor self-fixing effects were found.

  15. Low leakage Ru-strontium titanate-Ru metal-insulator-metal capacitors for sub-20 nm technology node in dynamic random access memory

    SciTech Connect (OSTI)

    Popovici, M. Swerts, J.; Redolfi, A.; Kaczer, B.; Aoulaiche, M.; Radu, I.; Clima, S.; Everaert, J.-L.; Van Elshocht, S.; Jurczak, M.

    2014-02-24

    Improved metal-insulator-metal capacitor (MIMCAP) stacks with strontium titanate (STO) as dielectric sandwiched between Ru as top and bottom electrode are shown. The Ru/STO/Ru stack demonstrates clearly its potential to reach sub-20 nm technology nodes for dynamic random access memory. Downscaling of the equivalent oxide thickness, leakage current density (J{sub g}) of the MIMCAPs, and physical thickness of the STO have been realized by control of the Sr/Ti ratio and grain size using a heterogeneous TiO{sub 2}/STO based nanolaminate stack deposition and a two-step crystallization anneal. Replacement of TiN with Ru as both top and bottom electrodes reduces the amount of electrically active defects and is essential to achieve a low leakage current in the MIM capacitor.

  16. Alloy inhomogeneity and carrier localization in AlGaN sections and AlGaN/AlN nanodisks in nanowires with 240350?nm emission

    SciTech Connect (OSTI)

    Himwas, C.; Hertog, M. den; Dang, Le Si; Songmuang, R.; Monroy, E.

    2014-12-15

    We present structural and optical studies of AlGaN sections and AlGaN/AlN nanodisks (NDs) in nanowires grown by plasma-assisted molecular beam epitaxy. The Al-Ga intermixing at Al(Ga)N/GaN interfaces and the chemical inhomogeneity in AlGaN NDs evidenced by scanning transmission electron microscopy are attributed to the strain relaxation process. This interpretation is supported by the three-dimensional strain distribution calculated by minimizing the elastic energy in the structure. The alloy inhomogeneity increases with the Al content, leading to enhanced carrier localization signatures in the luminescence characteristics, i.e., red shift of the emission, s-shaped temperature dependence, and linewidth broadening. Despite these effects, the emission energy of AlGaN/AlN NDs can be tuned in the 240350?nm range with internal quantum efficiencies around 30%.

  17. Formation mechanisms of oxygen atoms in the O({sup 1}D{sub 2}) state from the 157 nm photoirradiation of amorphous water ice at 90 K

    SciTech Connect (OSTI)

    Hama, Tetsuya; Yabushita, Akihiro; Yokoyama, Masaaki; Kawasaki, Masahiro; Watanabe, Naoki

    2009-09-21

    Vacuum ultraviolet photolysis of water ice in the first absorption band was studied at 157 nm. Translational and internal energy distributions of the desorbed species, O({sup 1}D) and OH(v=0,1), were directly measured with resonance-enhanced multiphoton ionization method. Two different mechanisms are discussed for desorption of electronically excited O({sup 1}D) atoms from the ice surface. One is unimolecular dissociation of H{sub 2}O to H{sub 2}+O({sup 1}D) as a primary photoprocess. The other is the surface recombination reaction of hot OH radicals that are produced from photodissociation of hydrogen peroxide as a secondary photoprocess. H{sub 2}O{sub 2} is one of the major photoproducts in the vacuum ultraviolet photolysis of water ice.

  18. Molecular beam epitaxial growth and optical properties of red-emitting ({lambda} = 650 nm) InGaN/GaN disks-in-nanowires on silicon

    SciTech Connect (OSTI)

    Jahangir, S.; Bhattacharya, P.; Mandl, M.; Strassburg, M.

    2013-02-18

    We have investigated the radiative properties of InGaN disks in GaN nanowires grown by plasma enhanced molecular beam epitaxy on (001) silicon substrates. The growth of the nanowire heterostructures has been optimized to maximize the radiative efficiency, or internal quantum efficiency (IQE), for photoluminescence emission at {lambda} = 650 nm. It is found that the IQE increases significantly (by {approx}10%) to 52%, when post-growth passivation of nanowire surface with silicon nitride or parylene is applied. The increase in efficiency is supported by radiative- and nonradiative lifetimes derived from data obtained from temperature dependent- and time-resolved photoluminescence measurements. Light emitting diodes with p-i-n disk-in-nanowire heterostructures passivated with parylene have been fabricated and characterized.

  19. Synthesis of 1 nm Pd Nanoparticles in a Microfluidic Reactor: Insights from in Situ X ray Absorption Fine Structure Spectroscopy and Small-Angle X ray Scattering

    SciTech Connect (OSTI)

    Karim, Ayman M.; Al Hasan, Naila M.; Ivanov, Sergei A.; Siefert, Soenke; Kelly, Ryan T.; Hallfors, Nicholas G.; Benavidez, Angelica D.; Kovarik, Libor; Jenkins, Aaron; Winans, R. E.; Datye, Abhaya K.

    2015-06-11

    In this paper we show that the temporal separation of nucleation and growth is not a necessary condition for the colloidal synthesis of monodisperse nanoparticles. The synthesis mechanism of Pd nanoparticles was determined by in situ XAFS and SAXS in a microfluidic reactor capable of millisecond up to an hour time resolution. The SAXS results showed two autocatalytic growth phases, a fast growth phase followed by a very slow growth phase. The steady increase in the number of particles throughout the two growth phases indicates the synthesis is limited by slow continuous nucleation. The transition from fast to slow growth was caused by rapid increase in bonding with the capping agent as shown by XAFS. Based on this fundamental understanding of the synthesis mechanism, we show that 1 nm monodisperse Pd nanoparticles can be synthesized at low temperature using a strong binding capping agent such as trioctylphosphine (TOP).

  20. The effect of pulse duration on the growth rate of laser-induced damage sites at 351 nm on fused silica surfaces

    SciTech Connect (OSTI)

    Negres, R A; Norton, M A; Liao, Z M; Cross, D A; Bude, J D; Carr, C W

    2009-10-29

    Past work in the area of laser-induced damage growth has shown growth rates to be primarily dependent on the laser fluence and wavelength. More recent studies suggest that growth rate, similar to the damage initiation process, is affected by a number of additional parameters including pulse duration, pulse shape, site size, and internal structure. In this study, we focus on the effect of pulse duration on the growth rate of laser damage sites located on the exit surface of fused silica optics. Our results demonstrate, for the first time, a significant dependence of growth rate at 351 nm on pulse duration from 1 ns to 15 ns as {tau}{sup 0.3} for sites in the 50-100 {micro}m size range.

  1. CFPL installs products pipeline with directional drilling

    SciTech Connect (OSTI)

    1996-01-01

    Central Florida Pipeline Company (CFPL), a subsidiary of GATX Terminals Corp., Tampa, FL, has used directional drilling under seven water bodies in Hillsborough, Polk and Osceola Counties in constructing its new pipeline from Tampa to Orlando. Primary reason for using directional drilling is to protect the environment by minimizing water turbidity while the 16-inch diameter, 109-mile refined petroleum products pipeline is being installed. Total cost of the project is pegged at $68.5 million. Directional drilling enabled the pipe to be placed about 20 feet below the bottom of: The Alafia River in Riverview with 999 feet drilled; Port Sutton Channel near the Port of Tampa with 2,756 feet drilled; Reedy Creek Swamp at the intersection of Interstate 4 and Highway 192 which had 1,111 feet drilled; Wetland {number_sign}70 southwest of Lake Wales with 1,575 feet drilled; Peace River south of Bartow had 2,470 feet drilled; Bonnet Creek west of Kissimmee had 693 feet drilled. Shingle Creek near the borders of Osceola and Orange Counties with 1,700 feet drilled. This paper reviews the design plans for construction and the emergency response plans should a rupture occur in the line.

  2. Effect of Key Parameters on the Photocatalytic Oxidation of Toluene at Low Concentrations in Air under 254 + 185 nm UV Irradiation

    SciTech Connect (OSTI)

    Quici, Natalia; Vera, Maria L.; Choi, Hyeok; Puma, Gianluca Li; Dionysiou, Dionysios D.; Litter, Marta I.; Destaillats, Hugo

    2009-07-01

    The effect of key experimental parameters on the removal of toluene under 254 + 185 nm irradiation was investigated using a benchtop photocatalytic flow reactor. Toluenewas introduced at low concentrations between 10 and 500 ppbv, typical of indoorenvironments, and reacted on TiO2-coated Raschig rings. Two different TiO2-coated rings were prepared: in one case, by dip-coating using a P25 aqueous suspension and, on the other, using an organic/inorganic sol-gel method that produced thin films of mesoporous anatase. Flow rates in the photoreactor varied between 4 L min-1 and 125 mL min-1, leading to residence times in the range 100 ms< tau< 2 s. For these conditions, toluene removal efficiencies were between 30 and 90percent, indicating that the system did not achieve total conversion in any case. For each air flow rate, the conversion oftoluene was significantly higher when the reactor length was 10 cm, as compared with 5 cm; however, only marginal increases in conversions were achieved in the two reactor lengths at equal residence time and different concentration of toluene, suggesting that that the reactor is effectively behaving as an ideal reactor and that the reaction is first-order in the concentration of toluene. Experiments were carried out between 0 and 66percent relative humidity (RH), the fastest reaction rate being observed at moderately low humidity conditions (10percent RH), with respect to both dry air and higher humidity levels. Formaldehyde was formed as a partial oxidation byproduct at low and at high residence times (240 and 960 ms), although higher formaldehyde molar yields (up to 20percent) were observed at low tau (240 ms) and moderate humidity conditions (10 and 33percent), suggesting that both tau and RH can be optimized toreduce the formation of harmful intermediates. Toluene removal efficiency increased with the TiO2 thickness (i.e., mass) until a maximum value of 500 nm, beyond which the removal efficiency decreased. This should be

  3. Characterization of the collisionally pumped optical-field-ionized soft-x-ray laser at 41.8 nm driven in capillary tubes

    SciTech Connect (OSTI)

    Cros, B.; Vieux, G.; Farinet, M.; Maynard, G.; Mocek, T.; Bettaibi, I.; Sebban, S.; Dubau, J.

    2006-03-15

    We report on experimental and theoretical studies of a collisionally pumped, optical-field-ionized soft-x-ray laser (SXRL) at 41.8 nm driven in capillary tubes with smooth inner surface. A detailed experimental study has been conducted in order to understand the key effects related to guiding in this configuration. The amplifying plasma was created inside few-cm-long capillary tubes, and maximum extreme ultraviolet emission was obtained when operating in a multimode guiding regime with an optimized lasing signal from a 25-mm-long capillary a factor of 3 higher than that of a gas cell and with a beam divergence reduced by a factor of 3. A numerical code, named COFIXE, has been developed to calculate the SXRL signal emitted by the plasma source. It includes the calculation of the pump beam propagation, the determination of the plasma state just after the interaction with the pump beam, the calculation of the evolution of the local properties of the plasma during the subsequent few ps, and the calculation of the amplification and transport of the SXRL emission. Excellent agreement has been obtained between experiment and theory for several features such as the divergence of the beam, the correlation between guided pump beam transmission and SXRL energy, and the enhancement factor induced by guiding.

  4. High quality HfO{sub 2}/p-GaSb(001) metal-oxide-semiconductor capacitors with 0.8?nm equivalent oxide thickness

    SciTech Connect (OSTI)

    Barth, Michael; Datta, Suman; Bruce Rayner, G.; McDonnell, Stephen; Wallace, Robert M.; Bennett, Brian R.; Engel-Herbert, Roman

    2014-12-01

    We investigate in-situ cleaning of GaSb surfaces and its effect on the electrical performance of p-type GaSb metal-oxide-semiconductor capacitor (MOSCAP) using a remote hydrogen plasma. Ultrathin HfO{sub 2} films grown by atomic layer deposition were used as a high permittivity gate dielectric. Compared to conventional ex-situ chemical cleaning methods, the in-situ GaSb surface treatment resulted in a drastic improvement in the impedance characteristics of the MOSCAPs, directly evidencing a much lower interface trap density and enhanced Fermi level movement efficiency. We demonstrate that by using a combination of ex-situ and in-situ surface cleaning steps, aggressively scaled HfO{sub 2}/p-GaSb MOSCAP structures with a low equivalent oxide thickness of 0.8?nm and efficient gate modulation of the surface potential are achieved, allowing to push the Fermi level far away from the valence band edge high up into the band gap of GaSb.

  5. Importance of energy efficiency in the design of the Process and Environmental Technology Laboratory (PETL) at Sandia National Laboratories, New Mexico (NM)

    SciTech Connect (OSTI)

    Wrons, R.

    1998-06-01

    As part of the design of the Process and Environmental Technology Laboratory (PETL) in FY97, an energy conservation report (ECR) was completed. The original energy baseline for the building, established in Title 1 design, was 595,000 BTU/sq. ft./yr, site energy use. Following the input of several reviewers and the incorporation of the various recommendations into the Title 2 design, the projected energy consumption was reduced to 341,000 BTU/sq. ft./yr. Of this reduction, it is estimated that about 150,000 BTU/sq. ft./yr resulted from inclusion of more energy efficient options into the design. The remaining reductions resulted from better accounting of energy consumption between Title 1 ECR and the final ECR. The energy efficient features selected by the outcome of the ECR were: (1) Energy Recovery system, with evaporative cooling assist, for the Exhaust/Make-up Air System; (2) Chilled Water Thermal Storage system; (3) Premium efficiency motors for large, year-round applications; (4) Variable frequency drives for all air handling fan motors; (4) Premium efficiency multiple boiler system; and (5) Lighting control system. The annual energy cost savings due to these measures will be about $165,000. The estimated annual energy savings are two million kWhrs electric, and 168,000 therms natural gas, the total of which is equivalent to 23,000 million BTUs per year. Put into the perspective of a typical office/light lab at SNL/NM, the annual energy savings is equal the consumption of a 125,000 square foot building. The reduced air emissions are approximately 2,500 tons annually.

  6. High resolution PFPE-based molding High resolution PFPE-based molding High resolution PFPE-based molding techniques for nanofabrication of high pattern density sub-20 nm features: A fundamental materials approach

    SciTech Connect (OSTI)

    Williams, Stuart S [University of North Carolina, Chapel Hill; Samulski, Edward [University of North Carolina, Chapel Hill; Lopez, Renee [University of North Carolina, Chapel Hill; Ruiz, Ricardo [Hitachi; DeSimone, Joseph [University of North Carolina, Chapel Hill; Retterer, Scott T [ORNL

    2010-01-01

    ABSTRACT. Described herein is the development and investigation of PFPE-based elastomers for high resolution replica molding applications. The modulus of the elastomeric materials was increased through synthetic and additive approaches while maintaining relatively low surface energies (<25 mN/m). Using practically relevant large area master templates, we show that the resolution of the molds is strongly dependant upon the elastomeric mold modulus. A composite mold approach was used to form flexible molds out of stiff, high modulus materials that allow for replication of sub-20 nm post structures. Sub-100 nm line grating master templates, formed using e-beam lithography, were used to determine the experimental stability of the molding materials. It was observed that as the feature spacing decreased, high modulus composite molds were able to effectively replicate the nano-grating structures without cracking or tear-out defects that typically occur with high modulus elastomers.

  7. Observation of the wavepacket dynamics on the {sup 1}B{sub 2}({sup 1}?{sub u}{sup +}) state of CS{sub 2} by sub-20 fs photoelectron imaging using 159 nm probe pulses

    SciTech Connect (OSTI)

    Spesyvtsev, R.; Horio, T.; Suzuki, Y.-I.; Suzuki, T.

    2015-02-21

    The wavepacket dynamics of CS{sub 2} after photoexcitation to the {sup 1}B{sub 2}({sup 1}?{sub u}{sup +}) state at 198 nm are studied by time-resolved photoelectron imaging using sub-20 fs 159 nm pulses, which enable single photon ionization from the entire region of the {sup 1}B{sub 2} potential energy surface. The time-energy map of the photoelectron intensity reveals vibrational motions along the symmetric stretching and bending coordinates. The time-energy map of the photoelectron anisotropy parameter exhibits time-evolution within single oscillation periods of the ?{sub 1} and ?{sub 2} modes, which is attributed to variation of the excited state electronic character along these vibrational coordinates. The initially populated {sup 1}B{sub 2} state evolves with two time constants of 107 and 394 fs.

  8. Shortwave, Clear-sky Diffuse Irradiance in the 350 to 1050 nm Range: Comparison of Models with RSS Measurements at the Southern Great Plains ARM Site in September/October 2001

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    Shortwave, Clear-Sky Diffuse Irradiance in the 350 to 1050 nm Range: Comparison of Models with RSS Measurements at the Southern Great Plains ARM Site in September/October 2001 J. J. Michalsky, P. W. Kiedron, Q.-L. Min, and L. C. Harrison Atmospheric Sciences Research Center State University of New York Albany, New York J. J. Michalsky Surface Radiation Research Branch Air Resources Laboratory National Oceanic and Atmospheric Administration Boulder, Colorado Abstract A rotating shadowband

  9. Microsoft Word - EIA-111 Form for 2018 FINAL 071015 with Picklists...

    U.S. Energy Information Administration (EIA) Indexed Site

    ... City of TAL Tampa Electric Company TEC Tennessee Valley Authority TVA The Empire ... City of TAL Tampa Electric Company TEC Tennessee Valley Authority TVA The Empire ...

  10. Photolysis of CH{sub 3}CHO at 248 nm: Evidence of triple fragmentation from primary quantum yield of CH{sub 3} and HCO radicals and H atoms

    SciTech Connect (OSTI)

    Morajkar, Pranay; Schoemaecker, Coralie; Fittschen, Christa; Bossolasco, Adriana

    2014-06-07

    Radical quantum yields have been measured following the 248 nm photolysis of acetaldehyde, CH{sub 3}CHO. HCO radical and H atom yields have been quantified by time resolved continuous wave Cavity Ring Down Spectroscopy in the near infrared following their conversion to HO{sub 2} radicals by reaction with O{sub 2}. The CH{sub 3} radical yield has been determined using the same technique following their conversion into CH{sub 3}O{sub 2}. Absolute yields have been deduced for HCO radicals and H atoms through fitting of time resolved HO{sub 2} profiles, obtained under various O{sub 2} concentrations, to a complex model, while the CH{sub 3} yield has been determined relative to the CH{sub 3} yield from 248 nm photolysis of CH{sub 3}I. Time resolved HO{sub 2} profiles under very low O{sub 2} concentrations suggest that another unknown HO{sub 2} forming reaction path exists in this reaction system besides the conversion of HCO radicals and H atoms by reaction with O{sub 2}. HO{sub 2} profiles can be well reproduced under a large range of experimental conditions with the following quantum yields: CH{sub 3}CHO?+?h?{sub 248nm} ? CH{sub 3}CHO{sup *}, CH{sub 3}CHO{sup *} ? CH{sub 3}?+?HCO??{sub 1a} = 0.125??0.03, CH{sub 3}CHO{sup *} ? CH{sub 3}?+?H?+?CO??{sub 1e} = 0.205??0.04, CH{sub 3}CHO{sup *}?{sup o{sub 2}}CH{sub 3}CO?+?HO{sub 2}??{sub 1f} = 0.07??0.01. The CH{sub 3}O{sub 2} quantum yield has been determined in separate experiments as ?{sub CH{sub 3}} = 0.33 0.03 and is in excellent agreement with the CH{sub 3} yields derived from the HO{sub 2} measurements considering that the triple fragmentation (R1e) is an important reaction path in the 248 nm photolysis of CH{sub 3}CHO. From arithmetic considerations taking into account the HO{sub 2} and CH{sub 3} measurements we deduce a remaining quantum yield for the molecular pathway: CH{sub 3}CHO{sup *} ? CH{sub 4}?+?CO??{sub 1b} = 0.6. All experiments can be consistently explained with absence of the formerly considered

  11. L{sub g}?=?100?nm In{sub 0.7}Ga{sub 0.3}As quantum well metal-oxide semiconductor field-effect transistors with atomic layer deposited beryllium oxide as interfacial layer

    SciTech Connect (OSTI)

    Koh, D., E-mail: dh.koh@utexas.edu, E-mail: Taewoo.Kim@sematech.org [Department of Electrical and Computer Engineering, Microelectronics Research Center, The University of Texas at Austin, Austin, Texas 78758 (United States); SEMATECH, Inc., Albany, New York 12203 (United States); Kwon, H. M. [Department of Electronics Engineering, Chungnam National University, Daejeon 305-764 (Korea, Republic of); Kim, T.-W., E-mail: dh.koh@utexas.edu, E-mail: Taewoo.Kim@sematech.org; Veksler, D.; Gilmer, D.; Kirsch, P. D. [SEMATECH, Inc., Albany, New York 12203 (United States); Kim, D.-H. [SEMATECH, Inc., Albany, New York 12203 (United States); GLOBALFOUNDRIES, Malta, New York 12020 (United States); Hudnall, Todd W. [Department of Chemistry and Biochemistry, Texas State University, San Marcos, Texas, 78666 (United States); Bielawski, Christopher W. [Department of Chemistry and Biochemistry, The University of Texas at Austin, Austin, Texas 78712 (United States); Maszara, W. [GLOBALFOUNDRIES, Santa Clara, California 95054 (United States); Banerjee, S. K. [Department of Electrical and Computer Engineering, Microelectronics Research Center, The University of Texas at Austin, Austin, Texas 78758 (United States)

    2014-04-21

    In this study, we have fabricated nanometer-scale channel length quantum-well (QW) metal-oxide-semiconductor field effect transistors (MOSFETs) incorporating beryllium oxide (BeO) as an interfacial layer. BeO has high thermal stability, excellent electrical insulating characteristics, and a large band-gap, which make it an attractive candidate for use as a gate dielectric in making MOSFETs. BeO can also act as a good diffusion barrier to oxygen owing to its small atomic bonding length. In this work, we have fabricated In{sub 0.53}Ga{sub 0.47}As MOS capacitors with BeO and Al{sub 2}O{sub 3} and compared their electrical characteristics. As interface passivation layer, BeO/HfO{sub 2} bilayer gate stack presented effective oxide thickness less 1 nm. Furthermore, we have demonstrated In{sub 0.7}Ga{sub 0.3}As QW MOSFETs with a BeO/HfO{sub 2} dielectric, showing a sub-threshold slope of 100?mV/dec, and a transconductance (g{sub m,max}) of 1.1 mS/?m, while displaying low values of gate leakage current. These results highlight the potential of atomic layer deposited BeO for use as a gate dielectric or interface passivation layer for IIIV MOSFETs at the 7?nm technology node and/or beyond.

  12. NM, East Dry Natural Gas Proved Reserves

    U.S. Energy Information Administration (EIA) Indexed Site

    Extensions 317 326 520 583 698 701 1977-2014 New Field Discoveries 0 0 3 1 0 1 1977-2014 New Reservoir Discoveries in Old Fields 3 3 2 4 89 3 1977-2014 Estimated Production 454 392 ...

  13. NM, West Dry Natural Gas Proved Reserves

    U.S. Energy Information Administration (EIA) Indexed Site

    1,457 11,186 10,626 9,200 8,943 9,484 1977-2014 Adjustments 274 111 197 94 -8 303 1977-2014 Revision Increases 855 1,731 1,612 1,570 2,393 1,952 1977-2014 Revision Decreases 1,080 1,415 1,798 2,426 2,076 1,174 1977-2014 Sales 138 12 817 0 222 0 2000-2014 Acquisitions 63 0 821 4 309 11 2000-2014 Extensions 124 142 211 97 55 159 1977-2014 New Field Discoveries 1 0 0 0 0 0 1977-2014 New Reservoir Discoveries in Old Fields 0 0 7 0 0 0 1977-2014 Estimated Production 896 828 793 765 708 710

  14. 80994.0709_NM:Layout 1

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    prescription drug coverage through Blue Cross and Blue Shield of New Mexico offers many options, resources and advantages: * Cost savings: Using generic drugs, when right for you, can help you save money. When you visit our Web site at www.bcbsnm.com, you can find out if a brand drug has a generic equivalent available and see a list of generic alternatives. * Convenience: A broad pharmacy network allows you to choose a retail pharmacy close to you. * Time savings: The mail order program lets you

  15. NM, East Natural Gas Liquids Proved Reserves

    Gasoline and Diesel Fuel Update (EIA)

    Working Gas from Same Month Previous Year (Percent) Mountain Producing Region Natural Gas in Underground Storage - Change in Working Gas from Same Month Previous Year (Percent) Mountain Producing Region 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 2015 -4.70 13.00 35.00 41.50 36.90 27.10 22.30 18.60 16.40 14.60 18.60 22.30 2016 19.40 24.20 27.80 31.30 31.00 27.50 - = No Data Reported;

  16. NM, West Natural Gas Liquids Proved Reserves

    Gasoline and Diesel Fuel Update (EIA)

    4,558 4,720 4,884 4,833 5,108 6,434 1979-2014 Natural Gas Nonassociated, Wet After Lease Separation 2,658 2,612 2,475 2,156 1,832 1,977 1979-2014 Natural Gas Associated-Dissolved, Wet After Lease Separation 1,900 2,108 2,409 2,677 3,276 4,457 1979-2014 Dry Natural Gas 4,141 4,226 4,379 4,386 4,633 5,799 Separation

    ,658 2,612 2,475 2,156 1,832 1,977 1979-2014 Adjustments 149 -49 -92 31 -97 111 1979-2014 Revision Increases 298 339 237 253 343 463 1979-2014 Revision Decreases 406 225 301 515

  17. NM Renewable Energy Storage Task Force

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    Solar Energy Wind Energy Water Power Supercritical CO2 Geothermal Natural Gas Safety, Security & Resilience of the Energy Infrastructure Energy Storage Nuclear Power & Engineering ...

  18. Sub-250?nm low-threshold deep-ultraviolet AlGaN-based heterostructure laser employing HfO{sub 2}/SiO{sub 2} dielectric mirrors

    SciTech Connect (OSTI)

    Kao, Tsung-Ting; Liu, Yuh-Shiuan; Mahbub Satter, Md.; Li, Xiao-Hang; Lochner, Zachary; Douglas Yoder, P.; Detchprohm, Theeradetch; Dupuis, Russell D.; Shen, Shyh-Chiang Ryou, Jae-Hyun; Fischer, Alec M.; Wei, Yong; Xie, Hongen; Ponce, Fernando A.

    2013-11-18

    We report a sub-250-nm, optically pumped, deep-ultraviolet laser using an Al{sub x}Ga{sub 1?x}N-based multi-quantum-well structure grown on a bulk Al-polar c-plane AlN substrate. TE-polarization-dominant lasing action was observed at room temperature with a threshold pumping power density of 250?kW/cm{sup 2}. After employing high-reflectivity SiO{sub 2}/HfO{sub 2} dielectric mirrors on both facets, the threshold pumping power density was further reduced to 180?kW/cm{sup 2}. The internal loss and threshold modal gain can be calculated as 2?cm{sup ?1} and 10.9?cm{sup ?1}, respectively.

  19. Design of a self-aligned, wide temperature range (300 mK-300 K) atomic force microscope/magnetic force microscope with 10 nm magnetic force microscope resolution

    SciTech Connect (OSTI)

    Karc?, zgr; Dede, Mnir

    2014-10-01

    We describe the design of a wide temperature range (300 mK-300 K) atomic force microscope/magnetic force microscope with a self-aligned fibre-cantilever mechanism. An alignment chip with alignment groves and a special mechanical design are used to eliminate tedious and time consuming fibre-cantilever alignment procedure for the entire temperature range. A low noise, Michelson fibre interferometer was integrated into the system for measuring deflection of the cantilever. The spectral noise density of the system was measured to be ~12 fm/?Hz at 4.2 K at 3 mW incident optical power. Abrikosov vortices in BSCCO(2212) single crystal sample and a high density hard disk sample were imaged at 10 nm resolution to demonstrate the performance of the system.

  20. Total reflection inelastic x-ray scattering from a 10 nm thick La{sub 0.6}Sr{sub 0.2}CoO{sub 3} thin film.

    SciTech Connect (OSTI)

    Fister, T. T.; Fong, D. D.; Eastman, J. A.; Iddir, H.; Zapol, P.; Fuoss, P. H.; Balasubramanian, M.; Gordon, R. A.; Balasubramaniam, K. R.; Salvador, P. A.; Simon Fraser Univ.; Carnegie Mellon Univ.

    2011-01-18

    To study equilibrium changes in composition, valence, and electronic structure near the surface and into the bulk, we demonstrate the use of a new approach, total-reflection inelastic x-ray scattering, as a sub-keV spectroscopy capable of depth profiling chemical changes in thin films with nanometer resolution. By comparing data acquired under total x-ray reflection and penetrating conditions, we are able to separate the O K-edge spectra from a 10 nm La{sub 0.6}Sr{sub 0.4}CoO{sub 3} thin film from that of the underlying SrTiO{sub 3} substrate. With a smaller wavelength probe than comparable soft x-ray absorption measurements, we also describe the ability to easily access dipole-forbidden final states, using the dramatic evolution of the La N{sub 4,5} edge with momentum transfer as an example.

  1. Assessment of the attained temperatures and of melting in the nanosecond irradiation of doped poly(methylmethylacrylate) at 308, 248, and 193 nm via the examination of dopant reactivity

    SciTech Connect (OSTI)

    Bounos, Giannis; Kolloch, Andreas; Stergiannakos, Taxiarhos; Varatsikou, Erene; Georgiou, Savas

    2005-10-15

    The thermal and structural changes effected to poly(methylmethylacrylate) (PMMA) upon irradiation at 308, 248, and 193 nm are assessed via the examination of the formation yields of the products formed by the photolysis of iodoaromatics (iodonaphthalene and iodophenanthrene-ArI-) dopants. Specifically, the main aryl product, the hydrogen-substituted derivative ArH, is formed via a thermally activated process (hydrogen-atom abstraction); thus, its formation efficiency reflects the temperature evolution in the substrate following UV irradiation. In the case of iodonaphthalene dopant, biaryl species (1,1-binaphthalene and perylene) are also formed via diffusion-limited reaction of the aryl radicals; thus, their yield reflects the extent of polymer melting. To this end, laser-induced fluorescence is employed for the quantification of the aryl products formed in the substrate as a function of the irradiation fluence. At all wavelengths, the ArH amount scales linearly with F{sub laser} at low fluences, but at higher fluences, it increases sharply reaching a plateau near the ablation threshold. Only quantitative differences concerning the fluence onset of the ArH increase and the amount of product remaining in the substrate are observed. Simulations accounting for the temporal and spatial evolutions of the temperature reproduce well the observed F{sub laser} dependences. The quantitative differences in the extent of ArH formation are well accounted by the extent of the heat diffusion to the sublayers. Thus, contrary to many previous suggestions, a thermal process is demonstrated to be dominant at the three wavelengths. Concerning the biaryl species, their yield decreases from 308 to 193 nm. The simulation of their formation yield provides semiquantitative information about the polymer viscosity changes (melting) upon irradiation at the three wavelengths. Besides the mechanistic implications, the study also provides insight into the factors affecting the extent of chemical

  2. Communication: Photodissociation of CH{sub 3}CHO at 308 nm: Observation of H-roaming, CH{sub 3}-roaming, and transition state pathways together along the ground state surface

    SciTech Connect (OSTI)

    Li, Hou-Kuan; Tsai, Po-Yu; Hung, Kai-Chan; Kasai, Toshio; Lin, King-Chuen

    2015-01-28

    Following photodissociation of acetaldehyde (CH{sub 3}CHO) at 308 nm, the CO(v = 1–4) fragment is acquired using time-resolved Fourier-transform infrared emission spectroscopy. The CO(v = 1) rotational distribution shows a bimodal feature; the low- and high-J components result from H-roaming around CH{sub 3}CO core and CH{sub 3}-roaming around CHO radical, respectively, in consistency with a recent assignment by Kable and co-workers (Lee et al., Chem. Sci. 5, 4633 (2014)). The H-roaming pathway disappears at the CO(v ≥ 2) states, because of insufficient available energy following bond-breaking of H + CH{sub 3}CO. By analyzing the CH{sub 4} emission spectrum, we obtained a bimodal vibrational distribution; the low-energy component is ascribed to the transition state (TS) pathway, consistent with prediction by quasiclassical trajectory calculations, while the high-energy component results from H- and CH{sub 3}-roamings. A branching fraction of H-roaming/CH{sub 3}-roaming/TS contribution is evaluated to be (8% ± 3%)/(68% ± 10%)/(25% ± 5%), in which the TS pathway was observed for the first time. The three pathways proceed concomitantly along the electronic ground state surface.

  3. THE SPECTRUM OF THORIUM FROM 250 nm TO 5500 nm: RITZ WAVELENGTHS...

    Office of Scientific and Technical Information (OSTI)

    We also found a large scatter with respect to the thorium line list of Lovis and Pepe. We anticipate that our Ritz wavelengths will lead to improved measurement accuracy for ...

  4. Electron-induced single event upsets in 28 nm and 45 nm bulk...

    Office of Scientific and Technical Information (OSTI)

    with previous work in which SRAMs were irradiated with low energy muons and protons. ... bulk SRAMs. Similarly, for the Jovian environment, the electron-induced upset rate is ...

  5. DOE Zero Energy Ready Home Case Study: Sunroc Builders, Bates Avenue, Lakeland, FL

    Broader source: Energy.gov [DOE]

    Case study of a DOE 2015 Housing Innovation Award winning affordable home in the hot-humid climate that got HERS 57 without PV, with 6.5” SIP walls and 8.25” SIP roof; uninsulated slab foundation; fresh air intake; SEER 16 ducted air source heat pump.

  6. Colloqium on Pathogenes, to be held November 6-9, 2003 in Key Largo, FL

    SciTech Connect (OSTI)

    Richard J Roberts, PI; Karen C. Cone, Program Director and Report Preparer

    2004-01-01

    The American Academy of Microbiology convened a colloquium November 6-7, 2003, in Key Largo, Florida, to discuss the application of genomic methods to the study of pathogenesis. Professionals in the fields of genomics, bacteriology, virology, eukaryotic microbiology, medicine, clinical diagnostics, bioinformatics, and forensics contributed their expertise to discussions on the recent advancements in the field and the outlook for future research. A number of recommendations were made for ensuring that progress in the field continues. The availability of genome sequences from pathogenic bacteria, viruses, and fungi and other eukaryotes has opened new horizons for the field of pathogenesis. The genomes of over 100 bacterial pathogens have been fully sequenced, and scientists are busy investigating the mechanisms that regulate the diversity of bacterial pathogens and their myriad abilities to evade host defenses. Close to 1,200 viral genomes have been sequenced, and virologists are now beginning to examine the genomes of those viruses that cause undetected, cryptic infections. These virus-host interactions can serve as a reservoir of viral genes that later emerge in novel pathogens with the potential to infect humans, economically important animals, or crops. A number of eukaryotic microbes, including several pathogenic fungi, have also been sequenced, revealing unimagined diversity among these important pathogens. Certain themes have emerged from analyses of pathogen genome sequences, and the possibility exists that a sequence-based common thread may be found linking pathogens from different taxa. The results of genome sequencing efforts have also informed the study of pathogenesis, helping to identify the ways in which pathogens bring about disease. The advances of the past several years have been great, and we are closer than ever to a comprehensive understanding of pathogenesis, but much work lies ahead. If the science is to move forward, the genome sequences of many more organisms are needed. The sequences of many hosts, pathogens, their nonpathogenic relatives, commensals, as well as a diverse array of microorganisms, are all needed to complete the picture of pathogenesis and provide a phylogenetic framework for understanding the phenomenon. Moreover, improvements are needed in the two most important tools of genomics: annotation methodologies and sequence databases.

  7. AMENDMENT OF SOLlClTATlONlMODlFlCATlON OF CONTRACT I A

    National Nuclear Security Administration (NNSA)

    A . ID 'ODE Babcock & Wilcox Technical Services Pantex, LLC PO Box 30020 Amarillo, TX 79120 PAGE 1 OF 2 PAGES MI83 I April 1,2009 6. ISSUED BY CODE U.S. Department of Energy ...

  8. AMENDMENT OF SOLlClTATlONlMODlFlCATlON OF CONTRACT I

    National Nuclear Security Administration (NNSA)

    I PAGE I OF 2 PAGES 2. AMENDMENTIMODIFICATION NO. 1 3. EFFECTIVE DATE 1 4. REQUISITIONIPURCHASE 1 5. PROJECT NO. (If aoalicable) M I 5 7 I See Block 16C I REQ. NO. Babcock & W ...

  9. AMENDMENT OF SOLlClTATlONlMODlFlCATlON OF CONTRACT ( I. ID CODE

    National Nuclear Security Administration (NNSA)

    ( I. ID CODE DE-ACO4-OOAL6662O ' 10s. DATED (SEE ITEM 13) PAGE I OF 2 PAGES Babcock & W C O X Technical Services Pantex, LLC 800 Main Street Lynchburg, VA 24505 9B. DATED ...

  10. NOT SPECIFIED IOTHER AMINDMENT 01' SOUCITAnONIMOD1FlCAnON OF...

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    ... COMMENTS 0112512007 CONFERENCEAGEMENT 0912911995 ... REMOTE ACCESS TO DOE AND to 0311812006 by APPLICABLE CONTRACTOR DOE N 20S.IS. INFORMATION TECHNOLOGY SYSTEMS ...

  11. Meanwhile, much attention will focus on model evaluation results at Frenchman Fl

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    Meanwhile, much attention will focus on model evaluation results at Frenchman Flat. "We are optimistic the results will be reasonably consistent with our model forecasts," explained Wilborn. "If model evaluation results are approved by the State of Nevada, we can move toward closure and long-term monitoring - the final stage in our strategy." All components of the Nevada Site Office groundwater program will be discussed at an upcoming Groundwater Open House on September 18,

  12. Builders Challenge High Performance Builder Spotlight - Palm Harbor Homes - Bimini II, Plant City, FL

    SciTech Connect (OSTI)

    2008-05-01

    Building America/Builders Challenge fact sheet on Palm Harbor Homes, an energy-efficient home builder in hot-humid climate using solar hot water, spray foam insulation, and SEER14 HVAC.

  13. J14252-1 FL Level 2 Rpt PQL Final Report.pdf

    Office of Legacy Management (LM)

    Methods: FDEP, DOH Certification : E84282 These test results meet all the requirements of NELAC unless specified in the case narrative. All questions regarding this test report ...

  14. DOE Zero Energy Ready Home Case Study: Habitat for Humanity South Sarasota County, Nokomis, FL

    SciTech Connect (OSTI)

    none,

    2014-09-01

    The builder won an Affordable Builder award in the 2014 Housing Innovation Awards for this super-insulated home that features a 5.5-inch-thick layer of open-cell spray foam on the inside of the attic ceiling, providing an R-20-insulated, cool, conditioned space for the home’s high-efficiency SEER 15 heat pumps.

  15. DOE Zero Energy Ready Home Case Study: Southeast Volusia Habitat for Humanity, Edgewater, FL

    SciTech Connect (OSTI)

    none,

    2014-09-01

    This home garnered an award in the Affordable Builder category of the 2014 Housing Innovation Awards, and features 2x4 walls with fiberglass batt inside plus R-3 rigid foam on the exterior, ENERGY STAR lighting, appliances, and ceiling fans, a solar water heater, an energy recovery ventilation, and a high efficiency heat pump.

  16. S M Stoller Star Center-B100 Monthly/Effluent; Largo, FL

    Office of Legacy Management (LM)

    ... 3.8 anr Chromium 10 .4 anr Cobalt 50 .5 Copper 25 .4 Iron 300 7.1 2.8 <300 Lead 5.0 1.2 ... anr Calcium anr Chromium anr Cobalt Copper Iron 1090 1110 1.8 0-14 1090 27800 27000 ...

  17. AMENDMENT OF SOLlClTATlONlMODlFlCATlON OF CONTRACT I I. CONTRA...

    National Nuclear Security Administration (NNSA)

    ... Protection Systems (2002) P NFPA 30 Flammable and Combustible Liquids Code (1998) P NFPA 51B Standard for Fire Prevention During Welding, Cutting, and Other Hot Work (1998) ...

  18. AMENDMENT OF SOLlClTATlONlMODlFlCATlON OF CONTFWCT I 1 CONTRACT...

    National Nuclear Security Administration (NNSA)

    ... unions, and during the terms of resultant contracts, on ... An employee is eligible to enter the Tuition Assistance ... agencies or executive search organizations at rates not ...

  19. AMENDMENT OF SOLlClTATlONlMODlFlCATlON OF CONTRACT I I. CONT...

    National Nuclear Security Administration (NNSA)

    ... Discharge Elimination System 40 CFR 131 Water Quality Standards 40 CFR 133 Secondary ... 40 CFR 141 National Primary Drinking Water Regulations 40 CFR 142 National Primary ...

  20. AMENDMENT OF SOLlClTATlONlMODlFlCATlON OF CONTRACT I 6. ISSUED...

    National Nuclear Security Administration (NNSA)

    ... Discharge Elimination System 40 CFR 131 Water Quality Standards 40 CFR 133 Secondary ... E-3 Laws & Regulations Title Pollutants 40 CFR 141 National Primary Drinking Water ...

  1. AMENDMENT OF SOLlClTATlONlMODlFlCATlON OF CONTRACT I I, CONTRACT...

    National Nuclear Security Administration (NNSA)

    ... Discharge Elimination System 40 CFR 131 Water Quality Standards 40 CFR 133 Secondary ... E-3 Laws & Regulations Title Pollutants 40 CFR 141 National Primary Drinking Water ...

  2. AMENDMENT OF SOLlClTATlONlMODlFlCATlON OF CONTRACT I CONTRACT...

    National Nuclear Security Administration (NNSA)

    ... Discharge Elimination System 40 CFR 131 Water Quality Standards 40 CFR 133 Secondary ... 40 CFR 141 National Primary Drinking Water Regulations 40 CFR 142 National Primary ...

  3. DOE Zero Ready Home Case Study: Southeast Volusia Habitat for HUmanity, Vista Palm, Edgewater, FL

    Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

    Vista Palm Edgewater, Florida DOE ZERO ENERGY READY HOME(tm) The U.S. Department of Energy invites home builders across the country to meet the extraordinary levels of excellence and quality specified in DOE's Zero Energy Ready Home program (formerly known as Challenge Home). Every DOE Zero Energy Ready Home starts with ENERGY STAR Certified Homes Version 3.0 for an energy-efficient home built on a solid foundation of building science research. Advanced technologies are designed in to give you

  4. AMENDMENT OF SOLlClTATlONlMODlFlCATlON OF CONTRACT I ' CONTRACT...

    National Nuclear Security Administration (NNSA)

    ... In the event that overpayment results from the payment of fee on a provisional basis, the ... subcontractors in excess of 100,000 a payment bond shall be obtained on Standard Form ...

  5. DOE ZERH Case Study: Habitat for Humanity South Sarasota, Laurel Gardens #794, Nakomis, FL

    SciTech Connect (OSTI)

    none,

    2015-09-01

    Case study of a DOE 2015 Housing Innovation Award winning affordable home in the hot-humid climate that got a HERS 51 without PV, with foam-filled masonry block walls with .75” rigid foam, furring strips, and foil-faced paper on interior walls; R-20 ocsf in roof of sealed attic, uninsulated slab, 15 SEER 8.0 HSPF heat pump walls for heating and cooling, heat pump water heater.

  6. DOE Challenge Home Case Study, e2Homes, Winterpark, FL, Custom...

    Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

    From the start, Rob Smith (the manager of e2 Homes) worked with the homeowner, his HERS ... based on all the standards...and it addresses concerns of different climates," said Smith. ...

  7. Buildng America Whole-House Solutions for New Homes: William...

    Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

    Buildng America Whole-House Solutions for New Homes: William Ryan Homes, Tampa, Florida Buildng America Whole-House Solutions for New Homes: William Ryan Homes, Tampa, Florida Case ...

  8. F-1 U.S. Energy Information Administration | Annual Energy Outlook...

    Annual Energy Outlook [U.S. Energy Information Administration (EIA)]

    Central West North Central East North Central Mountain AK WA MT WY ID NV UT CO AZ NM TX OK IA KS MO IL IN KY TN MS AL FL GA SC NC WV PA NJ MD DE NY CT VT ME RI MA NH VA WI MI OH...

  9. F-5 U.S. Energy Information Administration | Annual Energy Outlook...

    Annual Energy Outlook [U.S. Energy Information Administration (EIA)]

    Figure F4. Oil and Gas Supply Model Regions Atlantic WA MT WY ID NV UT CO AZ NM TX OK IA KS MO IL IN KY TN MS AL FL GA SC NC WV PA NJ MD DE NY CT ME RI MA NH VA WI MI OH NE...

  10. NNSA administrator shows NM congressional delegation the Albuquerque...

    National Nuclear Security Administration (NNSA)

    ... What rock has the biggest impact on the San Andreas? The moon. NNSA labs continue to lead national solar power evaluation effort NNSA research makes scientific impact, literally ...

  11. NM Legislation5 (Technical Report) | SciTech Connect

    Office of Scientific and Technical Information (OSTI)

    This site is a product of DOE's Office of Scientific and Technical Information (OSTI) and ... public from the National Technical Information Service, Springfield, VA at www.ntis.gov. ...

  12. Dr. Ferenc Mezei, Los Alamos National Laboratory, Los Alamos, NM

    ScienceCinema (OSTI)

    Dr. Ferenc Mezei

    2010-01-08

    Neutron Spin Echo Spectroscopy: History and Outlook. Presented at the Workshop on Spin Echo Spectroscopy 2009 at Oak Ridge National Laboratory on November 4, 2009.

  13. RAPID/Roadmap/14-NM-a | Open Energy Information

    Open Energy Info (EERE)

    in place, grant funding can be obtained from the SWQB to implement BMPs. If a WBP BMP is part of development, developers could apply for BMP implementation funding to offset...

  14. RAPID/Roadmap/19-NM-d | Open Energy Information

    Open Energy Info (EERE)

    in evaluating change applications. For example, the Middle Rio Grande Guidelines set forth extra evaluation criteria and place limits on change of purpose of use where the...

  15. RAPID/Roadmap/19-NM-f | Open Energy Information

    Open Energy Info (EERE)

    have standing to file objections or protests. NMAC 19.27.1.14. All protests must set forth the grounds for asserting standing. In addition, all protests must be filed with the...

  16. NM, West Coalbed Methane Proved Reserves, Reserves Changes, and...

    Annual Energy Outlook [U.S. Energy Information Administration (EIA)]

    3,461 3,172 3,009 2,851 2,410 2,851 2005-2013 Adjustments -9 257 -167 56 51 2009-2013 Revision Increases 443 490 551 255 1,291 2009-2013 Revision Decreases 323 565 277 485 587...

  17. NM, East Coalbed Methane Proved Reserves, Reserves Changes, and...

    Annual Energy Outlook [U.S. Energy Information Administration (EIA)]

    530 474 523 507 362 5 2005-2013 Adjustments 0 4 -3 0 -10 2009-2013 Revision Increases 0 72 11 0 71 2009-2013 Revision Decreases 30 0 2 117 0 2009-2013 Sales 0 0 0 0 409 2009-2013...

  18. Isotopic Analysis At Zuni Mountains Nm Area (Brookins, 1982)...

    Open Energy Info (EERE)

    not indicated DOE-funding Unknown References D. G. Brookins (1982) Potassium, Uranium, Thorium Radiogenic Heat Contribution To Heat Flow In The Precambrian And Younger...

  19. Rock Sampling At Zuni Mountains Nm Area (Brookins, 1982) | Open...

    Open Energy Info (EERE)

    analysis from U,Th,K concentrations. References D. G. Brookins (1982) Potassium, Uranium, Thorium Radiogenic Heat Contribution To Heat Flow In The Precambrian And Younger...

  20. RAPID/Roadmap/14-NM-d | Open Energy Information

    Open Energy Info (EERE)

    information at the hearing is large, however, cross examination of persons presenting oral statements is not allowed. Within 30 days after the hearing, the Hearing Officer will...

  1. RAPID/Roadmap/8-NM-d | Open Energy Information

    Open Energy Info (EERE)

    transmission lines requiring a right of way (ROW) width greater than 100 feet. Any person proposing to construct transmission lines requiring a ROW width greater than 100 feet...

  2. NM, East Associated-Dissolved Natural Gas Proved Reserves, Wet...

    U.S. Energy Information Administration (EIA) Indexed Site

    Extensions 233 270 361 478 599 697 1979-2014 New Field Discoveries 0 0 3 2 0 1 1979-2014 New Reservoir Discoveries in Old Fields 0 2 0 1 98 4 1979-2014 Estimated Production 175 173 ...

  3. RAPID/Roadmap/18-NM-a | Open Energy Information

    Open Energy Info (EERE)

    Energy Act of 1954; Any UST system that is part of an emergency generator system at nuclear power generation facilities regulated by the nuclear regulatory commission under...

  4. ,"NM, East Crude Oil plus Lease Condensate Proved Reserves"

    U.S. Energy Information Administration (EIA) Indexed Site

    Crude Oil plus Lease Condensate Proved Reserves" ,"Click worksheet name or tab at bottom for data" ,"Worksheet Name","Description"," Of Series","Frequency","Latest Data for"...

  5. ,"NM, West Lease Condensate Proved Reserves, Reserve Changes...

    U.S. Energy Information Administration (EIA) Indexed Site

    Lease Condensate Proved Reserves, Reserve Changes, and Production" ,"Click worksheet name or tab at bottom for data" ,"Worksheet Name","Description"," Of Series","Frequency","Late...

  6. ,"NM, West Crude Oil plus Lease Condensate Proved Reserves"

    U.S. Energy Information Administration (EIA) Indexed Site

    Crude Oil plus Lease Condensate Proved Reserves" ,"Click worksheet name or tab at bottom for data" ,"Worksheet Name","Description"," Of Series","Frequency","Latest Data for"...

  7. ,"NM, East Lease Condensate Proved Reserves, Reserve Changes...

    U.S. Energy Information Administration (EIA) Indexed Site

    Lease Condensate Proved Reserves, Reserve Changes, and Production" ,"Click worksheet name or tab at bottom for data" ,"Worksheet Name","Description"," Of Series","Frequency","Late...

  8. NM WAIDS: A PRODUCED WATER QUALITY AND INFRASTRUCTURE GIS DATABASE...

    Office of Scientific and Technical Information (OSTI)

    data, and corrosion information, (2) a web site capable of displaying produced water ... New Mexico. (2) Creation of a web-based data entry system for the water quality database. ...

  9. High power terahertz generation using 1550 nm plasmonic photomixers...

    Office of Scientific and Technical Information (OSTI)

    through use of plasmonic contact electrodes, and by mitigating thermal breakdown at high optical pump power levels through use of a low duty cycle optical pump. The...

  10. NM, East Natural Gas Reserves Summary as of Dec. 31

    U.S. Energy Information Administration (EIA) Indexed Site

    4,558 4,720 4,884 4,833 5,108 6,434 1979-2014 Natural Gas Nonassociated, Wet After Lease Separation 2,658 2,612 2,475 2,156 1,832 1,977 1979-2014 Natural Gas Associated-Dissolved, ...

  11. QER Public Meeting Santa Fe, NM Electricity Infrastructure Transmissio...

    Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

    Tesla? --Last but not least, there are just some natural differences among the regions (--geography, resource bases, culture, economic goals, you name it) and these differences ...

  12. RAPID/Roadmap/11-NM-c | Open Energy Information

    Open Energy Info (EERE)

    Burials. As part of the application, applicants must determine if the burials are Native American or Non-Native American and comply with differing notice requirements based on...

  13. RAPID/Roadmap/8-NM-f | Open Energy Information

    Open Energy Info (EERE)

    10.1. The full interconnection study process may include an Impact Study and a Feasibility Study. At the developer's request, the utility will provide a good faith estimate...

  14. RAPID/Roadmap/6-NM-a | Open Energy Information

    Open Energy Info (EERE)

    and routes of travel. In some cases the NMDOT may require a developer to conduct a feasibility study of the proposed movement or engineering analysis of the highway or route....

  15. RAPID/Roadmap/18-NM-b | Open Energy Information

    Open Energy Info (EERE)

    with law. NMSA 74-4-14 The filing of an appeal by any party does not act as a stay of any action required by the NMED's final decision. 20.4.1.901.H Process Flowchart...

  16. NM, West Associated-Dissolved Natural Gas Proved Reserves, Wet...

    U.S. Energy Information Administration (EIA) Indexed Site

    Acquisitions 0 0 25 0 1 11 2000-2014 Extensions 0 0 1 0 51 112 1979-2014 New Field Discoveries 0 0 0 0 0 0 1979-2014 New Reservoir Discoveries in Old Fields 0 0 0 0 0 0 1979-2014 ...

  17. NM, East Crude Oil plus Lease Condensate Proved Reserves

    U.S. Energy Information Administration (EIA) Indexed Site

    Extensions 76 76 113 192 217 221 2009-2014 New Field Discoveries 0 0 1 0 0 1 2009-2014 New Reservoir Discoveries in Old Fields 0 1 0 1 35 1 2009-2014 Estimated Production 58 63 70 ...

  18. NM, West Crude Oil plus Lease Condensate Proved Reserves

    U.S. Energy Information Administration (EIA) Indexed Site

    Acquisitions 1 0 3 2 1 4 2009-2014 Extensions 0 0 0 0 10 39 2009-2014 New Field Discoveries 0 0 0 0 0 0 2009-2014 New Reservoir Discoveries in Old Fields 0 0 0 0 0 0 2009-2014 ...

  19. NM, East Shale Gas Proved Reserves, Reserves Changes, and Production

    Gasoline and Diesel Fuel Update (EIA)

    7 35 23 93 178 2007-2013 Adjustments 10 3 66 28 7 2009-2013 Revision Increases 0 1 68 17 30 2009-2013 Revision Decreases 2 2 146 3 6 2009-2013 Sales 0 0 0 0 0 2009-2013...

  20. NM, West Shale Gas Proved Reserves, Reserves Changes, and Production

    U.S. Energy Information Administration (EIA) Indexed Site

    29 88 121 83 80 2007-2013 Adjustments 0 0 3 17 11 2009-2013 Revision Increases 2 0 15 1 28 2009-2013 Revision Decreases 0 9 44 53 39 2009-2013 Sales 0 0 0 0 0 2009-2013...