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  1. Spotlights

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

    Spotlights 2016 Popular Science Highlights NETL's Rare Earth Elements Research September 01, 2016 REEs_2.jpg NETL's efforts to recover rare earth elements from coal are highlighted in the September/October 2016 issue of Popular Science magazine. These 17 elements-used in cell phones, DVDs, LEDs, car batteries, and other gadgets-make our high-tech world possible. Read about NETL's rare earth elements research here. NETL Researcher Tapped as New Managing Editor for Geosciences Newsletter August

  2. Student Spotlight

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

    spotlight Student Spotlight Mekena McGrew Single-shot, Second Harmonic Generation Frequency Resolved Optical Gating (SHG FROG) system for damage testing. Nick Zobrist Optics inspection algorithms that evaluate the condition of NIF's optics. Maverick Chea Optimization of Ultrathin Films Alexandra Carlson Image Analysis Classification algorithm to automatically classify NIF optics damage sites. Nick Czapla Characterizing Scatter Plate Material

  3. Student Spotlight

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

    maverick chea Student Spotlight Maverick Chea default image Completing an MS in Chemical Engineering Stanford University Area of NIF: Target fabrication, particularly tents Project: Optimization of Ultrathin Films Tell us about your student internship experience. I was first here two years ago, also working with tents. As a senior figuring out a direction for job prospects, I became interested in polymers. Here I am studying them in "real life." I've found that it's been a great

  4. Student Spotlight

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

    mekena mcgrew Student Spotlight Mekena McGrew Mekena McGrew First-year physics PhD student University of California, Merced Area of NIF: Advanced Radiographic Capability (ARC) Project: Created a Single-shot, Second Harmonic Generation Frequency Resolved Optical Gating (SHG FROG) system for damage testing Tell us about your work at NIF.FROG is a technique for characterizing ultra-short pulses. With them, we can measure pulse parameters, such as the pulse intensity, pulse width, spectrum, and

  5. Scientists in the Spotlight

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

    Scientists in the Spotlight Scientists in the Spotlight WHEN: Dec 12, 2015 11:00 AM - 1:00 PM WHERE: Bradbury Science Museum 1350 Central Ave, Los Alamos, NM 87544, USA CATEGORY: Bradbury INTERNAL: Calendar Login Scientists in the Spotlight Every Second Saturday Event Description MARK YOUR CALENDARS for this special event! Every second Saturday from 11:00 AM to 1:00 PM, the museum features actual scientists and researchers talking to visitors about their favorite STEM (Science, Technology,

  6. Scientists in the Spotlight

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

    Scientists In the Spotlight Scientists in the Spotlight WHEN: Apr 11, 2015 11:00 AM - 1:00 PM WHERE: Bradbury Science Museum 1350 Central Ave, Los Alamos, New Mexico, USA CONTACT: Jessica Privette 505 667-0375 CATEGORY: Bradbury INTERNAL: Calendar Login Scientists in the Spotlight Event Description MARK YOUR CALENDARS for this special event! Every second Saturday from 11:00 AM to 1:00 PM, the museum has scientists on the floor talking to people about their favorite STEM topics. Join us at the

  7. Scientists in the Spotlight

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

    Scientists In the Spotlight Scientists in the Spotlight WHEN: Aug 08, 2015 10:00 AM - 12:00 PM WHERE: Bradbury Science Museum, 1350 Central Ave, Los Alamos, USA CONTACT: Jessica Privette 505 667-0375 CATEGORY: Bradbury INTERNAL: Calendar Login Scientists in the Spotlight Event Description MARK YOUR CALENDARS for this special event! Every second Saturday from 11:00 AM to 1:00 PM, the museum has scientists on the floor talking to people about their favorite STEM topics. Join us at the museum every

  8. Scientists in the Spotlight

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

    Scientists in the Spotlight Scientists in the Spotlight WHEN: Feb 14, 2015 11:00 AM - 1:00 PM WHERE: Bradbury Science Museum, 1350 Central Ave, Los Alamos, USA CONTACT: Jessica Privette 505 667-0375 CATEGORY: Bradbury INTERNAL: Calendar Login Scientist Spotlight Event Description MARK YOUR CALENDARS for this special event! Every second Saturday from 11:00 AM to 1:00 PM, the museum will have special scientists on the floor talking to people about their favorite STEM topics. The scientists

  9. Scientists in the Spotlight

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

    Scientists In the Spotlight Scientists in the Spotlight WHEN: Jul 11, 2015 11:00 AM - 1:00 PM WHERE: Bradbury Science Museum 1350 Central Ave, Los Alamos, NM 87544, USA SPEAKER: Nicole Lloyd-Ronning and Teri Roberts CONTACT: Jessica Privette 505 667-0375 CATEGORY: Bradbury INTERNAL: Calendar Login Scientists in the Spotlight Series Event Description MARK YOUR CALENDARS for this special event! Every second Saturday from 11:00 AM to 1:00 PM, the museum has scientists on the floor talking to people

  10. Scientists in the Spotlight

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

    Scientists In the Spotlight Scientists in the Spotlight WHEN: Jun 13, 2015 11:00 AM - 1:00 PM WHERE: Bradbury Science Museum 1350 Central Ave, Los Alamos, USA CONTACT: Jessica Privette 505 667-0375 CATEGORY: Bradbury INTERNAL: Calendar Login Scientists in the Spotlight Event Description MARK YOUR CALENDARS for this special event! Every second Saturday from 11:00 AM to 1:00 PM, the museum has scientists on the floor talking to people about their favorite STEM topics. Join us at the museum every

  11. Scientists in the Spotlight

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

    Scientists In the Spotlight Scientists in the Spotlight WHEN: May 09, 2015 11:00 AM - 1:00 PM WHERE: Bradbury Science Museum 1350 Central Ave, Los Alamos, New Mexico, USA SPEAKER: Steven Hayden, Chemist CONTACT: Jessica Privette 505 667-0375 CATEGORY: Bradbury INTERNAL: Calendar Login scientist in the spotlight series Event Description MARK YOUR CALENDARS for this special event! Every second Saturday from 11:00 AM to 1:00 PM, the museum has scientists on the floor talking to people about their

  12. Scientists in the Spotlight

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

    Scientists in the Spotlight Scientists in the Spotlight WHEN: Nov 14, 2015 11:00 AM - 1:00 PM WHERE: Bradbury Science Museum 1350 Central Ave, Los Alamos, NM 87544, USA CONTACT: Linda Anderman (505) 665-9196 CATEGORY: Bradbury INTERNAL: Calendar Login Scientists in the Spotlight Event Description MARK YOUR CALENDARS for this special event! Every second Saturday from 11:00 AM to 1:00 PM, the museum features actual scientists and researchers talking to visitors about their favorite STEM topics.

  13. Scientists in the Spotlight

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

    Scientists In the Spotlight Scientists in the Spotlight WHEN: Oct 10, 2015 11:00 AM - Feb 12, 2015 1:00 PM WHERE: Bradbury Science Museum 1350 Central Avenue, Los Alamos, New Mexico 87544 USA CONTACT: Jessica Privette 505 667-0375 CATEGORY: Bradbury INTERNAL: Calendar Login Scientists in the Spotlight every Second Saturday Event Description MARK YOUR CALENDARS for this special event! Every second Saturday from 11:00 AM to 1:00 PM, the museum has scientists on the floor talking to people about

  14. Scientists in the Spotlight

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

    Scientists In the Spotlight Scientists in the Spotlight WHEN: Sep 12, 2015 11:00 AM - 1:00 PM WHERE: Bradbury Science Museum 1350 Central Avenue, Los Alamos, New Mexico, 87544 USA CONTACT: Jessica Privette 505 667-0375 CATEGORY: Bradbury INTERNAL: Calendar Login Scientists in the Spotlight every Second Saturday Event Description MARK YOUR CALENDARS for this special event! Every second Saturday from 11:00 AM to 1:00 PM, the museum has scientists on the floor talking to people about their favorite

  15. Spotlight: Bryant Roybal

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

    Issue:September 2015 all issues All Issues submit Spotlight: Bryant Roybal Champion chile and a recipe March 1, 2015 Bryant Roybal and his ingredient Bryant Roybal and his...

  16. Scientist in the Spotlight

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

    Scientist in the Spotlight Scientist in the Spotlight WHEN: Jan 09, 2016 11:00 AM - 1:00 PM WHERE: Bradbury Science Museum 1350 Central Ave, Los Alamos, NM 87544, USA CONTACT: Linda Anderman (505) 665-9196 CATEGORY: Bradbury INTERNAL: Calendar Login Event Description MARK YOUR CALENDARS for this special event! Every second Saturday from 11 a.m. to 1 p.m., the Museum features actual scientists and researchers talking to visitors about their favorite Science, Technology, Engineering and Math

  17. Scientist in the Spotlight

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

    Scientist in the Spotlight Scientist in the Spotlight WHEN: Jul 09, 2016 11:00 AM - 1:00 PM WHERE: Bradbury Science Museum 1350 Central Ave, Los Alamos, NM 87544, USA CONTACT: Linda Anderman (505) 665-9196 CATEGORY: Bradbury INTERNAL: Calendar Login Event Description A chance to visit with our scientists and learn about their work. Nuclear forensics If a cache of stolen or dumped nuclear material is intercepted by a law enforcement agency, what would happen next? Christy Ruggiero, with the Lab's

  18. Scientist in the Spotlight

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

    Scientist in the Spotlight Scientist in the Spotlight WHEN: Mar 12, 2016 11:00 AM - 1:00 PM WHERE: Bradbury Science Museum 1350 Central Ave, Los Alamos, NM 87544, USA CONTACT: Linda Anderman (505) 665-9196 CATEGORY: Bradbury INTERNAL: Calendar Login Event Description MARK YOUR CALENDARS for this special event. Every second Saturday from 11 a.m. to 1 p.m., the Museum has scientists available to talk to visitors about their exciting topics. Fun for the whole family! Capturing an eggs-plosion on

  19. Scientists in the Spotlight

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

    Scientists In the Spotlight Scientists in the Spotlight WHEN: Mar 14, 2015 11:00 AM - 1:00 PM WHERE: Bradbury Science Museum 1350 Central Ave, Los Alamos, NM 87544, USA CONTACT: Jessica Privette 505 667-0375 CATEGORY: Bradbury INTERNAL: Calendar Login Celebrating Women in Science Event Description MARK YOUR CALENDARS for this special event! Every second Saturday from 11:00 AM to 1:00 PM, the museum has scientists on the floor talking to people about their favorite STEM topics. Join us at the

  20. Spotlight on Seattle, Washington: Community Partnerships Work...

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

    Seattle, Washington: Community Partnerships Work to Extend Program Reach Spotlight on Seattle, Washington: Community Partnerships Work to Extend Program Reach Spotlight on Seattle, ...

  1. Employee Spotlight: Dances of India

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

    Jobs Career Stories Employee Spotlight Alina Deshpande Alina Deshpande-Dances of India Lab scientist Alina Deshpande teaches classical Indian dance and writes, produces,...

  2. Workers' Spotlight Newsletters | Department of Energy

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

    Workers' Spotlight Newsletters Workers' Spotlight Newsletters Newsletters Available for Download December 4, 2014 Workers' Spotlight Newsletter - Issue 15 Workers' Spotlight newsletter is a monthly publication that provides information regarding the Energy Employees Occupational Illness Compensation Program and the Former Worker Medical Screening Program. October/November/December 2014 issue covers Remembrance Quilt, National Day of Remembrance, JOTG Meeting in Paducah, University of Iowa

  3. Spotlight on Maine: Transition to a Sustainable Level of Incentives...

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

    Spotlight on Maine: Transition to a Sustainable Level of Incentives Spotlight on Maine: Transition to a Sustainable Level of Incentives Spotlight on Maine: Transition to a ...

  4. Employee Spotlight: James Hunter

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

    Career Jobs» Career Stories» Employee Spotlight» Sim Balkey James Hunter-Discovering Oz James Hunter helped discover a new section of Carlsbad Caverns National Park's famous Lechuguilla Cave. Hunter Hunter Hunter Hunter Hunter Hunter Hunter 1 2 3 4 5 6 7 "The passage I'm in is lousy; tight enough to require belly-crawling," Hunter says. "I'm lying on sharp rocks, but it looks a bit bigger ahead, and the rocks on my left are almost porous-as though there is a space on the other

  5. Employee Spotlight: Janice Lovato

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

    Careers, Jobs » Careers Stories » Employee Spotlight » Janice Lovato Janice Lovato-A gift for imagination The Associate Directorate for Nuclear and High Hazard Operations' Janice Lovato has turned her love for nature-watching and story-telling into writing a children's book called Germaine the Beetle. March 10, 2015 Janice Lovato Janice Lovato and her first children's book. "I am always telling stories, whether at bedtime, in the car going somewhere or sitting under a tree in the

  6. Employee Spotlight: Jason Halladay

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

    Career Jobs» Career Stories» Employee Spotlight» Jason Halladay Jason Halladay-Ascending one of the world's highest active volcanoes The Network and Infrastructure Engineering Division's Jason Halladay is an accomplished rock climber and mountaineer who recently climbed a well-known volcano in Ecuador. halladay halladay halladay halladay halladay halladay halladay halladay halladay 12 3 4 5 6 789 "I just keep placing one foot in front of the other and in the dark focus on the six-foot

  7. Employee Spotlight: Michelle Ferran

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

    Career Jobs» Career Stories» Employee Spotlight» Michelle Ferran Michelle Ferran-Painting from the heart The Lab's Michelle Ferran used to stack her vibrant watercolor paintings under her bed. But when she finally gained enough confidence to participate in the Española Valley Arts Festival's poster contest in 2001, one of her paintings immediately won first prize. Ferran Ferran Ferran Ferran Ferran Ferran Ferran Ferran Ferran 1 2 3 4 5 6 7 8 9 "My art is a gift to me. I didn't formally

  8. Employee Spotlight: Sim Balkey

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

    Career Jobs» Career Stories» Employee Spotlight» Sim Balkey Sim Balkey-On the way up The "kid who has the goods" has been quite busy lately. Just ahead of the MusicRow review he celebrated the release of his new CD, Messin' Around, with a CD release party in Albuquerque on March 13, and before then he was in the national limelight performing in Nashville on February 24. Balkey Balkey Balkey Balkey Balkey Balkey Balkey Balkey 1 2 3 4 5 6 7 8 "As I walked to the microphone I knew

  9. Workers' Spotlight Newsletter- Issue 3

    Office of Energy Efficiency and Renewable Energy (EERE)

    Workers' Spotlight newsletter is a monthly publication that provides information regarding the Energy Employees Occupational Illness Compensation Program and the Former Worker Medical Screening Program. January 2013 issue covers National Supplemental Screening Program and What's going on around the Complex.

  10. Workers' Spotlight Newsletter- Issue 4

    Broader source: Energy.gov [DOE]

    Workers' Spotlight newsletter is a monthly publication that provides information regarding the Energy Employees Occupational Illness Compensation Program and the Former Worker Medical Screening Program. February 2013 issue covers John Hopkins University Former Worker Program.

  11. Workers' Spotlight Newsletter- Issue 7

    Broader source: Energy.gov [DOE]

    Workers' Spotlight newsletter is a monthly publication that provides information regarding the Energy Employees Occupational Illness Compensation Program and the Former Worker Medical Screening Program. May 2013 issue covers WHPP and BTMed Roster Updates and WHPP Video Acknowledgement.

  12. EA-1911: Energy Conservation Standards for Certain Reflector, Elliptical Reflector, and Bulged Reflector Incandescent Lamps

    Broader source: Energy.gov [DOE]

    This EA will evaluate the environmental impacts of a proposal to amend energy conservation standards for Certain Reflector, Elliptical Reflector, and Bulged Reflector Incandescent Lamps.

  13. Scientist Spotlight on February 13

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

    Scientist Spotlight on February 13 Scientist Spotlight on February 13 WHEN: Feb 13, 2016 11:00 AM - 1:00 PM WHERE: Bradbury Science Museum 1350 Central Ave, Los Alamos, NM 87544, USA CONTACT: Linda Anderman (505) 665-9196 CATEGORY: Bradbury INTERNAL: Calendar Login welding sparks Event Description In this demonstration you will learn to weld with a glue gun! Welding-With a glue gun? Typically when we think of welding (joining two metals together) we think of protective gear and flying sparks or

  14. June Scientist in the Spotlight

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

    June Scientist in the Spotlight June Scientist in the Spotlight WHEN: Jun 11, 2016 11:00 AM - 1:00 PM WHERE: Bradbury Science Museum 1350 Central Ave, Los Alamos, NM 87544, USA CONTACT: Linda Anderman (505) 665-9196 CATEGORY: Bradbury INTERNAL: Calendar Login Event Description Stop by for fun and learning with some of our sciencey folks Aquatic biology Stop by and learn about some of the different things that could be as close as the nearest puddle or pond. Jane Clements will help answer the

  15. Employee Spotlights | Argonne National Laboratory

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

    Apply for a Job External Applicants Internal Applicants Postdoctoral Applicants Fellowships Students Faculty Programs Why Argonne Your Career Life at Argonne Employee Spotlights Amenities Social Activities Newcomers/International Assistance Benefits Education Community Diversity Directory Argonne National Laboratory About Safety News Careers Education Community Diversity Directory Energy Environment Security User Facilities Science Work with Argonne Careers Apply for a Job External Applicants

  16. Workers' Spotlight Newsletter- Issue 13

    Broader source: Energy.gov [DOE]

    Worker's Spotlight Newsletter is a monthly publication that provides information regarding the Energy Employees Occupational Illness Compensation Program and the Former Worker Medical Screening Program. May/June 2014 issue covers the Director's Note, the Cold War Patriots' Remembrance Quilt, Staff, the National Museum of Nuclear Science and History, Chest X-ray B-reading, and Calendar of Events.

  17. Workers' Spotlight Newsletter- Issue 5

    Office of Energy Efficiency and Renewable Energy (EERE)

    Workers' Spotlight newsletter is a monthly publication that provides information regarding the Energy Employees Occupational Illness Compensation Program and the Former Worker Medical Screening Program. March 2013 issue covers Former Worker Medical Screening Program 2012 Annual Report and University of Iowa - Former Worker Program.

  18. Workers' Spotlight Newsletter- Issue 2

    Office of Energy Efficiency and Renewable Energy (EERE)

    Workers' Spotlight newsletter is a monthly publication that provides information regarding the Energy Employees Occupational Illness Compensation Program and the Former Worker Medical Screening Program. December 2012 issue covers Updating the Site Exposure Matrices (SEM) and the summary of the 2012 Advanced Ethical Research Conference.

  19. Workers' Spotlight Newsletter- Issue 9

    Broader source: Energy.gov [DOE]

    Workers’ Spotlight newsletter is a monthly publication that provides information regarding the Energy Employees Occupational Illness Compensation Program and the Former Worker Medical Screening Program. September/October 2013 issue covers Former Worker Medical Screening Program Milestone, United States Preventive Services Task Force (USPSTF) and John Hopkins Former Worker Program in New Mexico.

  20. Workers' Spotlight Newsletter- Issue 12

    Broader source: Energy.gov [DOE]

    Workers' Spotlight newsletter is a monthly publication that provides information regarding the Energy Employees Occupational Illness Compensation Program and the Former Worker Medical Screening Program. March/April 2014 issue covers Joint Outreach Task Group town hall meeting video, the Bradbury Science Museum, and spirometry.

  1. Workers' Spotlight Newsletter- Issue 8

    Broader source: Energy.gov [DOE]

    Workers' Spotlight newsletter is a monthly publication that provides information regarding the Energy Employees Occupational Illness Compensation Program and the Former Worker Screening Program. July/August issue covers Site Information Sessions, Joint Outreach Task Group Meeting, and National Supplemental Screening Program Low-Dose CT Program.

  2. Workers' Spotlight Newsletter- Issue 14

    Office of Energy Efficiency and Renewable Energy (EERE)

    Workers' Spotlight newsletter is a monthly publication that provides information regarding the Energy Employees Occupational Illness Compensation Program and the Former Worker Medical Screening Program. July/August/September issue covers Director's Note, 2014 Sylvia Kieding Award, National Atomic Testing Museum, and Calendar of Events.

  3. Workers' Spotlight Newsletter- Issue 11

    Office of Energy Efficiency and Renewable Energy (EERE)

    Worker's Spotlight newsletter is a monthly publication that provides information regarding the Energy Employees Occupational Illness Compensation Program and the Former Worker Medical Screening Program. January/February 2014 issue covers audiogram, the American Museum of Science and Energy, and trivia.

  4. Workers' Spotlight Newsletter- Issue 10

    Office of Energy Efficiency and Renewable Energy (EERE)

    Workers' Spotlight newsletter is a monthly publication that provides information regarding the Energy Employees Occupational Illness Compensation Program and the Former Worker Medical Screening Program. November / December 2013 issue covers Remembrance, Beryllium, Secure Electronic Records Transfer (SERT), and Commemorating DOE Former Workers.

  5. Better Buildings: Financing and Incentives: Spotlight on Michigan...

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

    Spotlight on Michigan: Experiment to Find the Right Mix of Incentives Better Buildings: Financing and Incentives: Spotlight on Michigan: Experiment to Find the Right Mix of ...

  6. Better Buildings: Workforce, Spotlight on Maine: Contractor Sales...

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

    Workforce, Spotlight on Maine: Contractor Sales Training Boosts Energy Upgrade Conversions Better Buildings: Workforce, Spotlight on Maine: Contractor Sales Training Boosts Energy...

  7. Spotlight on Key Program Strategies from the Better Buildings...

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

    Spotlight on Key Program Strategies from the Better Buildings Neighborhood Program, Final Evaluation Volume 6 Spotlight on Key Program Strategies from the Better Buildings Neighborhood ...

  8. Spotlight on Austin, Texas: Best Offer Ever Produces 564 Upgrades...

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

    Spotlight on Austin, Texas: Best Offer Ever Produces 564 Upgrades in Record Time Spotlight on Austin, Texas: Best Offer Ever Produces 564 Upgrades in Record Time This Better ...

  9. Spotlight on Austin, Texas: Best Offer Ever Produces Upgrades...

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

    Best Offer Ever Produces Upgrades in Record Time Spotlight on Austin, Texas: Best Offer Ever Produces Upgrades in Record Time Spotlight on Austin, Texas: Best Offer Ever Produces ...

  10. DOE Sustainability SPOtlight: Special Edition 2013 DOE Sustainability...

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

    DOE Sustainability SPOtlight: Special Edition 2013 DOE Sustainability Awards DOE Sustainability SPOtlight: Special Edition 2013 DOE Sustainability Awards Newsletter highlights the ...

  11. Better Buildings: Workforce: Spotlight on Portland, Oregon: Making...

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

    Workforce: Spotlight on Portland, Oregon: Making the Program Work for Contractors Better Buildings: Workforce: Spotlight on Portland, Oregon: Making the Program Work for ...

  12. Employee Spotlight: Muge Acik | Argonne National Laboratory

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

    or partnering with Argonne to solve your R&D or production challenges, contact partners@anl.gov. Related People Muge Acik Next article: Employee Spotlight: Peter Friedman...

  13. DOE Sustainability SPOtlight | Department of Energy

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

    Newsletter highlights the recipients of the U.S. Department of Energy (DOE) Sustainability Performance Office (SPO) 2014 Sustainability Awards. PDF icon DOE SPOtlight - 2014 DOE ...

  14. Nuclear reactor reflector

    DOE Patents [OSTI]

    Hopkins, Ronald J.; Land, John T.; Misvel, Michael C.

    1994-01-01

    A nuclear reactor reflector is disclosed that comprises a stack of reflector blocks with vertical water flow passages to cool the reflector. The interface between blocks is opposite support points for reactor fuel rods. Water flows between the reflector and the reactor barrel from passages in a bottom block. The top block contains a flange to limit this flow and the flange has a slot to receive an alignment pin that is welded to the barrel. The pin is held in the slot by two removable shims. Alignment bars extend the length of the stack in slots machined in each block when the stack is assembled.

  15. Nuclear reactor reflector

    DOE Patents [OSTI]

    Hopkins, R.J.; Land, J.T.; Misvel, M.C.

    1994-06-07

    A nuclear reactor reflector is disclosed that comprises a stack of reflector blocks with vertical water flow passages to cool the reflector. The interface between blocks is opposite support points for reactor fuel rods. Water flows between the reflector and the reactor barrel from passages in a bottom block. The top block contains a flange to limit this flow and the flange has a slot to receive an alignment pin that is welded to the barrel. The pin is held in the slot by two removable shims. Alignment bars extend the length of the stack in slots machined in each block when the stack is assembled. 12 figs.

  16. Employee Spotlight: Dances of India

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

    Career Jobs» Career Stories» Employee Spotlight» Alina Deshpande Alina Deshpande-Dances of India Lab scientist Alina Deshpande teaches classical Indian dance and writes, produces, directs and choreographs an annual benefit performance in Los Alamos. deshpande deshpande deshpande deshpande deshpande deshpande deshpande 12 3 45 67 "My goal for the Dances of India benefit event is not only to raise money for worthy organizations but to showcase my students." Dances of India Each

  17. REFLECTOR FOR NEUTRONIC REACTORS

    DOE Patents [OSTI]

    Fraas, A.P.

    1963-08-01

    A reflector for nuclear reactors that comprises an assembly of closely packed graphite rods disposed with their major axes substantially perpendicular to the interface between the reactor core and the reflector is described. Each graphite rod is round in transverse cross section at (at least) its interface end and is provided, at that end, with a coaxial, inwardly tapering hole. (AEC)

  18. Metal halogen electrochemical cell

    DOE Patents [OSTI]

    Bellows, Richard J.; Kantner, Edward

    1988-08-23

    It has now been discovered that reduction in the coulombic efficiency of metal halogen cells can be minimized if the microporous separator employed in such cells is selected from one which is preferably wet by the aqueous electrolyte and is not wet substantially by the cathodic halogen.

  19. Better Buildings: Financing and Incentives: Spotlight on Michigan:

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

    Experiment to Find the Right Mix of Incentives | Department of Energy Buildings: Financing and Incentives: Spotlight on Michigan: Experiment to Find the Right Mix of Incentives Better Buildings: Financing and Incentives: Spotlight on Michigan: Experiment to Find the Right Mix of Incentives Better Buildings: Financing and Incentives: Spotlight on Michigan: Experiment to Find the Right Mix of Incentives. Spotlight on Michigan (618.46 KB) More Documents & Publications Spotlight on Michigan:

  20. Better Buildings: Workforce, Spotlight on Maine: Contractor Sales Training

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

    Boosts Energy Upgrade Conversions | Department of Energy Workforce, Spotlight on Maine: Contractor Sales Training Boosts Energy Upgrade Conversions Better Buildings: Workforce, Spotlight on Maine: Contractor Sales Training Boosts Energy Upgrade Conversions Better Buildings: Workforce, Spotlight on Maine: Contractor Sales Training Boosts Energy Upgrade Conversions. Spotlight on Maine (411.14 KB) More Documents & Publications Better Buildings: Financing and Incentives: Spotlight on Maine:

  1. Better Buildings: Workforce: Spotlight on Portland, Oregon: Making the

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

    Program Work for Contractors | Department of Energy Workforce: Spotlight on Portland, Oregon: Making the Program Work for Contractors Better Buildings: Workforce: Spotlight on Portland, Oregon: Making the Program Work for Contractors Better Buildings: Workforce: Spotlight on Portland, Oregon: Making the Program Work for Contractors. Spotlight on Portland (536.02 KB) More Documents & Publications Better Buildings - Spotlight on Portland, Oregon; Financing and Incetntives: Use Incentives

  2. Employee Spotlight: Peter Friedman | Argonne National Laboratory

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

    (Click image to view larger.) (Click image to view larger.) Employee Spotlight: Peter Friedman By Jo Napolitano * September 25, 2015 Tweet EmailPrint Peter Friedman, 30, is a...

  3. Employee Spotlight: Jennifer Hogan | Argonne National Laboratory

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

    what it's like to work at Argonne in her Employee Spotlight video. Click the image to play the video. Hogan discusses what it's like to work at Argonne in her Employee...

  4. Manufacturing Spotlight: Boosting American Competitiveness | Department of

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

    Energy Manufacturing Spotlight: Boosting American Competitiveness Manufacturing Spotlight: Boosting American Competitiveness January 6, 2014 - 1:06pm Addthis Advancing the nation's clean energy manufacturing industry helps to capture the value of U.S. innovation in clean energy technologies, fosters further innovation right here in America, and makes U.S. manufacturers more competitive by reducing their energy costs - all while creating jobs and building a more sustainable planet for future

  5. Spotlighting Howard University | Department of Energy

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

    Spotlighting Howard University Spotlighting Howard University February 27, 2012 - 2:45pm Addthis Students at Howard University are helping to solve one of the biggest challenges facing renewable energy. | Photo by Jim Pleasant. Students at Howard University are helping to solve one of the biggest challenges facing renewable energy. | Photo by Jim Pleasant. Kate Bannan Communications and Outreach Specialist Students at Washington, D.C.'s Howard University are helping to solve one of the biggest

  6. Advanced Manufacture of Reflectors

    Broader source: Energy.gov [DOE]

    The Advance Manufacture of Reflectors fact sheet describes a SunShot Initiative project being conducted research team led by the University of Arizona, which is working to develop a novel method for shaping float glass. The technique developed by this research team can drastically reduce the time required for the shaping step. By enabling mass production of solar concentrating mirrors at high speed, this project should lead to improved performance and as much as a 40% reduction in manufacturing costs for reflectors made in very high volume.

  7. Halogenated solvent remediation

    DOE Patents [OSTI]

    Sorenson, Jr., Kent S.

    2008-11-11

    Methods for enhancing bioremediation of ground water contaminated with nonaqueous halogenated solvents are disclosed. An illustrative method includes adding an electron donor for microbe-mediated anaerobic reductive dehalogenation of the halogenated solvents, which electron donor enhances mass transfer of the halogenated solvents from residual source areas into the aqueous phase of the ground water. Illustrative electron donors include C.sub.2-C.sub.4 carboxylic acids and hydroxy acids, salts thereof, esters of C.sub.2-C.sub.4 carboxylic acids and hydroxy acids, and mixtures thereof, of which lactic acid, salts of lactic acid--such as sodium lactate, lactate esters, and mixtures thereof are particularly illustrative. The microbes are either indigenous to the ground water, or such microbes can be added to the ground water in addition to the electron donor.

  8. Halogenated solvent remediation

    DOE Patents [OSTI]

    Sorenson, Kent S.

    2004-08-31

    Methods for enhancing bioremediation of ground water contaminated with nonaqueous halogenated solvents are disclosed. A preferred method includes adding a composition to the ground water wherein the composition is an electron donor for microbe-mediated reductive dehalogenation of the halogenated solvents and enhances mass transfer of the halogenated solvents from residual source areas into the aqueous phase of the ground water. Illustrative compositions effective in these methods include surfactants such as C.sub.2 -C.sub.4 carboxylic acids and hydroxy acids, salts thereof, esters of C.sub.2 -C.sub.4 carboxylic acids and hydroxy acids, and mixtures thereof. Especially preferred compositions for use in these methods include lactic acid, salts of lactic acid, such as sodium lactate, lactate esters, and mixtures thereof. The microbes are either indigenous to the ground water, or such microbes can be added to the ground water in addition to the composition.

  9. Spotlight on Austin, Texas: Let Your Contractor Be Your Guide...

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

    Let Your Contractor Be Your Guide for Big Rewards Spotlight on Austin, Texas: Let Your Contractor Be Your Guide for Big Rewards Spotlight on Austin, Texas: Let Your Contractor Be ...

  10. Corrosion protection for silver reflectors

    DOE Patents [OSTI]

    Arendt, Paul N.; Scott, Marion L.

    1991-12-31

    A method of protecting silver reflectors from damage caused by contact with gaseous substances which are often present in the atmosphere and a silver reflector which is so protected. The inventive method comprises at least partially coating a reflector with a metal oxide such as aluminum oxide to a thickness of 15 .ANG. or less.

  11. Better Buildings - Spotlight on Portland, Oregon; Financing and

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

    Incetntives: Use Incentives to Get Attention and Encourage Deep Savings | Department of Energy - Spotlight on Portland, Oregon; Financing and Incetntives: Use Incentives to Get Attention and Encourage Deep Savings Better Buildings - Spotlight on Portland, Oregon; Financing and Incetntives: Use Incentives to Get Attention and Encourage Deep Savings Better Buildings - Spotlight on Portland, Oregon; Financing and Incentives: Use Incentives to Get Attention and Encourage Deep Savings. Spotlight

  12. Building America Research Teams: Spotlight on Home Innovation and PARR

    Broader source: Energy.gov [DOE]

    Read a spotlight article about the Partnership for Home Innovation and Partnership for Advanced Residential Retrofit teams.

  13. Employee Spotlight: John T. Murphy | Argonne National Laboratory

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

    Employee Spotlight: John T. Murphy Share Topic Operations Human Resources Programs Mathematics, computing, & computer science Modeling, simulation, & visualization Security ...

  14. Halogenation of cobalt dicarbollide

    DOE Patents [OSTI]

    Hurlburt, Paul K. (Los Alamos, NM); Abney, Kent D. (Los Alamos, NM); Kinkead, Scott A. (Los Alamos, NM)

    1997-01-01

    A method for selectively adding chlorine, bromine, or iodine to cobalt dicarbollide anions by means of electrophilic substitution reactions. Halogens are added only to the B10 and B10' positions of the anion. The process involves use of hypohalous acid or N-halosuccinimide or gaseous chlorine in the presence of iron.

  15. Halogenation of cobalt dicarbollide

    DOE Patents [OSTI]

    Hurlburt, P.K.; Abney, K.D.; Kinkead, S.A.

    1997-05-20

    A method for selectively adding chlorine, bromine, or iodine to cobalt dicarbollide anions by means of electrophilic substitution reactions. Halogens are added only to the B10 and B10{prime} positions of the anion. The process involves use of hypohalous acid or N-halosuccinimide or gaseous chlorine in the presence of iron. 1 fig.

  16. Scientist in the Spotlight August 13

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

    Scientist in the Spotlight August 13 Scientist in the Spotlight August 13 WHEN: Aug 13, 2016 11:00 AM - 1:00 PM WHERE: Bradbury Science Museum 1350 Central Ave, Los Alamos, NM 87544, USA CONTACT: Linda Anderman (505) 665-9196 CATEGORY: Bradbury INTERNAL: Calendar Login Event Description A chance to chat and interact with Lab science types Forecasting disease Nick Generous, with the Lab's Information Systems and Modeling group, will be available to chat about how new social media tools help

  17. Scientist in the Spotlight September 10

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

    Scientist in the Spotlight September 10 Scientist in the Spotlight September 10 WHEN: Sep 10, 2016 11:00 AM - 1:00 PM WHERE: Bradbury Science Museum 1350 Central Ave, Los Alamos, NM 87544, USA CONTACT: Linda Anderman (505) 665-9196 CATEGORY: Bradbury INTERNAL: Calendar Login Event Description Come by for a mini nano lab and information on measurement. Seeing nano Come by and play in a simplified version of a nano lab! Nano means one billionth of something so a nanometer is one billionth of a

  18. Advanced Manufacture of Reflectors

    SciTech Connect (OSTI)

    Angel, Roger

    2014-12-17

    The main project objective has been to develop an advanced gravity sag method for molding large glass solar reflectors with either line or point focus, and with long or short focal length. The method involves taking standard sized squares of glass, 1.65 m x 1.65 m, and shaping them by gravity sag into precision steel molds. The method is designed for high volume manufacture when incorporated into a production line with separate pre-heating and cooling. The performance objectives for the self-supporting glass mirrors made by this project include mirror optical accuracy of 2 mrad root mean square (RMS), requiring surface slope errors <1 mrad rms, a target not met by current production of solar reflectors. Our objective also included development of new methods for rapidly shaping glass mirrors and coating them for higher reflectivity and soil resistance. Reflectivity of 95% for a glass mirror with anti-soil coating was targeted, compared to the present ~94% with no anti-soil coating. Our mirror cost objective is ~$20/m2 in 2020, a significant reduction compared to the present ~$35/m2 for solar trough mirrors produced for trough solar plants. During the first year a custom batch furnace was built to develop the method with high power radiative heating to simulate transfer of glass into a hot slumping zone in a production line. To preserve the original high polish of the float glass on both front and back surfaces, as required for a second surface mirror, the mold surface is machined to the required shape as grooves which intersect the glass at cusps, reducing the mold contact area to significantly less than 1%. The mold surface is gold-plated to reflect thermal radiation. Optical metrology of glass replicas made with the system has been carried out with a novel, custom-built test system. This test provides collimated, vertically-oriented parallel beams from a linear array of co-aligned lasers translated in a perpendicular direction across the reflector. Deviations of

  19. Employee Spotlight: Sarah Owens | Argonne National Laboratory

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

    Employee Spotlight: Sarah Owens Share Topic Environment Biology Operations Human Resources Diversity Browse By - Any - General Argonne Information Energy -Energy efficiency --Vehicles ---Alternative fuels ---Automotive engineering ---Diesel ---Electric drive technology ---Hybrid & electric vehicles ---Hydrogen & fuel cells ---Internal combustion ---Powertrain research --Building design ---Construction --Manufacturing -Energy sources --Renewable energy ---Bioenergy ---Solar energy

  20. Spotlight on Seattle, Washington: Community Partnerships Work to Extend

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

    Program Reach | Department of Energy Seattle, Washington: Community Partnerships Work to Extend Program Reach Spotlight on Seattle, Washington: Community Partnerships Work to Extend Program Reach Spotlight on Seattle, Washington: Community Partnerships Work to Extend Program Reach, as posted on the U.S. Department of Energy's Better Buildings Neighborhood Program website. Spotlight on Seattle, Washington (4.72 MB) More Documents & Publications Seattle Summary of Reported Data Better

  1. State and Local Spotlight Newsletters | Department of Energy

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

    About the State & Local Solution Center » State and Local Spotlight Newsletters State and Local Spotlight Newsletters A monthly update from EERE's Weatherization and Intergovernmental Programs Office (WIP) for state, local, and K-12 officials featuring resources to advance successful, high-impact, and long-lasting clean energy policies, programs, and projects. July 7, 2016 State and Local Spotlight - July 2016 This July newsletter features news on DOE's Building Technologies Office and

  2. High Performance Builder Spotlight: Green Coast Enterprises - New Orleans,

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

    Louisiana | Department of Energy High Performance Builder Spotlight: Green Coast Enterprises - New Orleans, Louisiana High Performance Builder Spotlight: Green Coast Enterprises - New Orleans, Louisiana This four-page case study describes Green Coast Enterprises efforts to rebuild hurricane-ravaged New Orleans through Project Home Again. green_coast_enterprises.pdf (3 MB) More Documents & Publications High Performance Builder Spotlight: Green Coast Enterprises - New Orleans, Louisiana

  3. Spotlight on Michigan: Sweeping the State for Ultimate Success...

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

    More Documents & Publications Better Buildings: Financing and Incentives: Spotlight on Michigan: Experiment to Find the Right Mix of Incentives BetterBuildings for Michigan: ...

  4. Better Buildings: Financing and Incentives: Spotlight on Michigan...

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

    ...terbuildings.energy.govneighborhoods 1 Spotlight on Michigan: Experiment to Find the Right Mix of Incentives With ... communities across the country through energy efficiency. ...

  5. Better Buildings - Spotlight on Portland, Oregon; Financing and...

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

    to Get Attention and Encourage Deep Savings Better Buildings - Spotlight on Portland, Oregon; Financing and Incetntives: Use Incentives to Get Attention and Encourage ...

  6. Better Buildings: Financing and Incentives: Spotlight on Maine...

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

    on Maine: Transition to a Sustainable Level of Incentives Better Buildings: Financing and Incentives: Spotlight on Maine: Transition to a Sustainable Level of Incentives Better ...

  7. Better Buildings: Workforce: Spotlight on Fayette County, Pennsylvania...

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

    What's Working in Residential Energy Efficiency Upgrade Programs - Promising Approaches and Lessons Learned Workforce and Economic Development Spotlight on Austin, Texas: Let Your ...

  8. Spotlight on Michigan: Sweeping the State for Ultimate Success

    Broader source: Energy.gov [DOE]

    Spotlight on Michigan: Sweeping the State for Ultimate Success, as posted on the U.S. Department of Energy's Better Buildings Neighborhood Program website.

  9. Workers' Spotlight Newsletter - Issue 6 | Department of Energy

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

    May 2013 issue covers: BTMed takes aim at COPD, Lung Cancer Director's Note Staff Trivia Pantex Former Worker Medical Surveillance Program. Trivia Calendar Workers' Spotlight ...

  10. Better Buildings: Workforce: Spotlight on Fayette County, Pennsylvania: Developing the Skills and Tools for Workforce Success

    Broader source: Energy.gov [DOE]

    Better Buildings: Workforce: Spotlight on Fayette County, Pennsylvania: Developing the Skills and Tools for Workforce Success

  11. Under the OWASS Spotlight: Interview with Paul Azunre | MIT-Harvard Center

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

    for Excitonics Under the OWASS Spotlight: Interview with Paul Azunre 9.4.2012

  12. Better Buildings: Financing and Incentives: Spotlight on Maine: Transition to a Sustainable Level of Incentives

    Broader source: Energy.gov [DOE]

    Better Buildings: Financing and Incentives: Spotlight on Maine: Transition to a Sustainable Level of Incentives

  13. Spotlight on Austin, Texas: Best Offer Ever Produces Upgrades in Record

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

    Time | Department of Energy Best Offer Ever Produces Upgrades in Record Time Spotlight on Austin, Texas: Best Offer Ever Produces Upgrades in Record Time Spotlight on Austin, Texas: Best Offer Ever Produces Upgrades in Record Time, as posted on the U.S. Department of Energy's Better Buildings Neighborhood Program website. Spotlight on Austin, Texas (554.64 KB) More Documents & Publications Spotlight on Austin, Texas: Best Offer Ever Produces 564 Upgrades in Record Time Spotlight on

  14. Spotlight on Austin, Texas: Let Your Contractor Be Your Guide for Big

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

    Rewards | Department of Energy Let Your Contractor Be Your Guide for Big Rewards Spotlight on Austin, Texas: Let Your Contractor Be Your Guide for Big Rewards Spotlight on Austin, Texas: Let Your Contractor Be Your Guide for Big Rewards, as posted on the U.S. Department of Energy's Better Buildings Neighborhood Program website. Spotlight on Austin, Texas (444.88 KB) More Documents & Publications Spotlight on Austin, Texas: Best Offer Ever Produces Upgrades in Record Time Spotlight on

  15. Spotlight on Austin, Texas: Best Offer Ever Produces 564 Upgrades in Record

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

    Time | Department of Energy Spotlight on Austin, Texas: Best Offer Ever Produces 564 Upgrades in Record Time Spotlight on Austin, Texas: Best Offer Ever Produces 564 Upgrades in Record Time This Better Buildings case study from April 2011 focuses on grantee partner Austin. Spotlight on Austin, Texas (296.86 KB) More Documents & Publications Spotlight on Austin, Texas: Best Offer Ever Produces Upgrades in Record Time Spotlight on Austin, Texas: Let Your Contractor Be Your Guide for Big

  16. Reflector system for a lighting fixture

    DOE Patents [OSTI]

    Siminovitch, Michael J.; Page, Erik; Gould, Carl T.

    2001-01-01

    Disclosed herein is a reflector system for a lighting fixture having a illumination source surrounded by an envelope. The reflector system includes a first reflector surrounding the illumination source. The reflector system also includes a second reflector which is non-contiguous with the first reflector and which surrounds the illumination source. The illumination source creates light rays which are reflected by the first and second reflectors. The first reflector directs light rays toward the center line of the fixture. However, the reflected rays despite being so reflected do not substantially intersect the envelope. The reflected light rays from the second reflector being directed so that they diverge from the center line of the fixture avoiding intersection with the semi-transparent envelope.

  17. Reflector system for a lighting fixture

    DOE Patents [OSTI]

    Siminovitch, M.J.; Page, E.; Gould, C.T.

    1998-09-08

    Disclosed herein is a reflector system for a lighting fixture having a illumination source surrounded by an envelope. The reflector system includes a first reflector surrounding the illumination source. The reflector system also includes a second reflector which is non-contiguous with the first reflector and which surrounds the illumination source. The illumination source creates light rays which are reflected by the first and second reflectors. The first reflector directs light rays toward the center line of the fixture. However, the reflected rays despite being so reflected do not substantially intersect the envelope. The reflected light rays from the second reflector being directed so that they diverge from the center line of the fixture avoiding intersection with the semi-transparent envelope. 5 figs.

  18. Reflector system for a lighting fixture

    DOE Patents [OSTI]

    Siminovitch, Michael J.; Page, Erik; Gould, Carl T.

    1998-01-01

    Disclosed herein is a reflector system for a lighting fixture having a illumination source surrounded by an envelope. The reflector system includes a first reflector surrounding the illumination source. The reflector system also includes a second reflector which is non-contiguous with the first reflector and which surrounds the illumination source. The illumination source creates light rays which are reflected by the first and second reflectors. The first reflector directs light rays toward the center line of the fixture. However, the reflected rays despite being so reflected do not substantially intersect the envelope. The reflected light rays from the second reflector being directed so that they diverge from the center line of the fixture avoiding intersection with the semi-transparent envelope.

  19. Nuclear Fuels & Materials Spotlight Volume 4

    SciTech Connect (OSTI)

    I. J. van Rooyen,; T. M. Lillo; Y. Q. WU; P.A. Demkowicz; L. Scott; D.M. Scates; E. L. Reber; J. H. Jackson; J. A. Smith; D.L. Cottle; B.H. Rabin; M.R. Tonks; S.B. Biner; Y. Zhang; R.L. Williamson; S.R. Novascone; B.W. Spencer; J.D. Hales; D.R. Gaston; C.J. Permann; D. Anders; S.L. Hayes; P.C. Millett; D. Andersson; C. Stanek; R. Ali; S.L. Garrett; J.E. Daw; J.L. Rempe; J. Palmer; B. Tittmann; B. Reinhardt; G. Kohse; P. Ramuhali; H.T. Chien; T. Unruh; B.M. Chase; D.W. Nigg; G. Imel; J. T. Harris

    2014-04-01

    As the nation's nuclear energy laboratory, Idaho National Laboratory brings together talented people and specialized nuclear research capability to accomplish our mission. This edition of the Nuclear Fuels and Materials Division Spotlight provides an overview of some of our recent accomplishments in research and capability development. These accomplishments include: • The first identification of silver and palladium migrating through the SiC layer in TRISO fuel • A description of irradiation assisted stress corrosion testing capabilities that support commercial light water reactor life extension • Results of high-temperature safety testing on coated particle fuels irradiated in the ATR • New methods for testing the integrity of irradiated plate-type reactor fuel • Description of a 'Smart Fuel' concept that wirelessly provides real time information about changes in nuclear fuel properties and operating conditions • Development and testing of ultrasonic transducers and real-time flux sensors for use inside reactor cores, and • An example of a capsule irradiation test. Throughout Spotlight, you'll find examples of productive partnerships with academia, industry, and government agencies that deliver high-impact outcomes. The work conducted at Idaho National Laboratory helps to spur innovation in nuclear energy applications that drive economic growth and energy security. We appreciate your interest in our work here at INL, and hope that you find this issue informative.

  20. Hydrogen Production by PEM Electrolysis: Spotlight on Giner and Proton

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

    PRODUCTION BY PEM ELECTROLYSIS: SPOTLIGHT ON GINER AND PROTON US DOE WEBINAR (May 23, 2011) 2 Webinar Outline *Water Electrolysis H 2 Production Overview DOE-EERE-FCT: Eric L. Miller *Spotlight: PEM Electrolysis R&D at Giner Giner Electrochemical Systems: Monjid Hamdan *Spotlight: PEM Electrolysis R&D at Proton Proton OnSite: Kathy Ayers *Q&A 3 DOE EERE-FCT Goals and Objectives Develop technologies to produce hydrogen from clean, domestic resources at a delivered and dispensed cost

  1. Lamp bulb with integral reflector

    DOE Patents [OSTI]

    Levin, Izrail; Shanks, Bruce; Sumner, Thomas L.

    2001-01-01

    An improved electrodeless discharge lamp bulb includes an integral ceramic reflector as a portion of the bulb envelope. The bulb envelope further includes two pieces, a reflector portion or segment is cast quartz ceramic and a light transmissive portion is a clear fused silica. In one embodiment, the cast quartz ceramic segment includes heat sink fins or stubs providing an increased outside surface area to dissipate internal heat. In another embodiment, the quartz ceramic segment includes an outside surface fused to eliminate gas permeation by polishing.

  2. Employee Spotlight: John T. Murphy | Argonne National Laboratory

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

    Click the image to watch his Employee Spotlight video. Connect Find an Argonne expert by subject. Follow Argonne on Twitter, Facebook, Google+ and LinkedIn. For inquiries on...

  3. White House Spotlights Solar Innovation as Summit Registration...

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

    In case you missed it, last Thursday's White House Solar Champions of Change and Solar Summit shed a spotlight on all the amazing work that solar innovators around country are ...

  4. White House Spotlights Solar Innovation as Summit Registration Continues

    Broader source: Energy.gov [DOE]

    In case you missed it, last Thursday’s White House Solar Champions of Change and Solar Summit shed a spotlight on all the amazing work that solar innovators around country are doing to speed...

  5. Moab Uranium Mill Tailings Cleanup Project Steps into Spotlight at

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

    International Meeting in Vienna | Department of Energy Uranium Mill Tailings Cleanup Project Steps into Spotlight at International Meeting in Vienna Moab Uranium Mill Tailings Cleanup Project Steps into Spotlight at International Meeting in Vienna October 22, 2012 - 12:00pm Addthis Moab Federal Project Director Donald Metzler presents at the Uranium Mining Remediation Exchange Group meeting in Germany in September 2011. Moab Federal Project Director Donald Metzler presents at the Uranium

  6. Workers' Spotlight Newsletter - Issue 15 | Department of Energy

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

    5 Workers' Spotlight Newsletter - Issue 15 October/November/December 2014, Issue 15 Workers' Spotlight newsletter is a monthly publication that provides information regarding the Energy Employees Occupational Illness Compensation Program and the Former Worker Medical Screening Program. November/December issue covers: Director's Note National Day of Remembrance Remembrance Quilt JOTG Meeting in Paducah University of Iowa Recognition Events Second Anniversary of Secure Electronic Records Transfer

  7. Washington Auto Show Spotlight: How Fuel Cell Electric Vehicles Work |

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

    Department of Energy Washington Auto Show Spotlight: How Fuel Cell Electric Vehicles Work Washington Auto Show Spotlight: How Fuel Cell Electric Vehicles Work January 27, 2015 - 12:57pm Addthis The Hyundai Tucson FCEV is currently available for lease in Southern California for less than $500 per month, including free hydrogen fuel. Hydrogen for FCEVs can be produced from a variety of resources all providing emission reductions. Hydrogen derived from natural gas reduces emissions by half and

  8. Spotlight on Michigan: Sweeping the State for Ultimate Success

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

    July 2011 Version 2 betterbuildings.energy.gov/neighborhoods Spotlight on Michigan: Sweeping the State for Ultimate Success Service Delivery The Better Buildings Neighborhood Program is part of the national Better Buildings Initiative led by the U.S. Department of Energy. To learn how the Better Buildings Neighborhood Program is making homes more comfortable and businesses more lucrative and to read more from this Spotlight series, visit betterbuildings.energy.gov/neighborhoods. 1 A Sweeping

  9. Lamp with a truncated reflector cup

    SciTech Connect (OSTI)

    Li, Ming; Allen, Steven C.; Bazydola, Sarah; Ghiu, Camil-Daniel

    2013-10-15

    A lamp assembly, and method for making same. The lamp assembly includes first and second truncated reflector cups. The lamp assembly also includes at least one base plate disposed between the first and second truncated reflector cups, and a light engine disposed on a top surface of the at least one base plate. The light engine is configured to emit light to be reflected by one of the first and second truncated reflector cups.

  10. METHOD FOR PRODUCING ISOTOPIC METHANES AND PARTIALLY HALOGENATED DERIVATIVES THEROF

    DOE Patents [OSTI]

    Frazer, J.W.

    1959-08-18

    A method is given for producing isotopic methanes and/ or partially halogenated derivatives. Lithium hydride, deuteride, or tritide is reacted with a halogenated methane or with a halogenated methane in combination with free halogen. The process is conveniently carried out by passing a halogenated methane preferably at low pressures or in an admixture with an inert gas through a fixed bed of finely divided lithium hydride heated initially to temperatures of 100 to 200 deg C depending upon the halogenated methane used.

  11. Beam spoiling a reflector antenna with conducting shim. (Technical...

    Office of Scientific and Technical Information (OSTI)

    Beam spoiling a reflector antenna with conducting shim. Citation Details In-Document Search Title: Beam spoiling a reflector antenna with conducting shim. A horn-fed dish reflector...

  12. Advanced Manufacture of Second-Surface, Silvered Glass Reflectors...

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

    Manufacture of Second-Surface, Silvered Glass Reflectors for High-Performance, Low-Cost CSP Collector Systems Advanced Manufacture of Second-Surface, Silvered Glass Reflectors for ...

  13. Distributed Bragg Reflectors With Reduced Optical Absorption

    DOE Patents [OSTI]

    Klem, John F.

    2005-08-16

    A new class of distributed Bragg reflectors has been developed. These distributed Bragg reflectors comprise interlayers positioned between sets of high-index and low-index quarter-wave plates. The presence of these interlayers is to reduce photon absorption resulting from spatially indirect photon-assisted electronic transitions between the high-index and low-index quarter wave plates. The distributed Bragg reflectors have applications for use in vertical-cavity surface-emitting lasers for use at 1.55 .mu.m and at other wavelengths of interest.

  14. Solar central receiver heliostat reflector assembly

    DOE Patents [OSTI]

    Horton, Richard H.; Zdeb, John J.

    1980-01-01

    A heliostat reflector assembly for a solar central receiver system comprises a light-weight, readily assemblable frame which supports a sheet of stretchable reflective material and includes mechanism for selectively applying tension to and positioning the sheet to stretch it to optical flatness. The frame is mounted on and supported by a pipe pedestal assembly that, in turn, is installed in the ground. The frame is controllably driven in a predetermined way by a light-weight drive system so as to be angularly adjustable in both elevation and azimuth to track the sun and efficiently continuously reflect the sun's rays to a focal zone, i.e. central receiver, which forms part of a solar energy utilization system, such as a solar energy fueled electrical power generation system. The frame may include a built-in system for testing for optical flatness of the reflector. The preferable geometric configuration of the reflector is octagonal; however, it may be other shapes, such as hexagonal, pentagonal or square. Several different embodiments of means for tensioning and positioning the reflector to achieve optical flatness are disclosed. The reflector assembly is based on the stretch frame concept which provides an extremely light-weight, simple, low-cost reflector assembly that may be driven for positioning and tracking by a light-weight, inexpensive drive system.

  15. Spotlight on Rutland County, Vermont: How Local Ties Lead to Local Wins

    Broader source: Energy.gov [DOE]

    Spotlight on Rutland County, Vermont: How Local Ties Lead to Local Wins, as posted on the U.S. Department of Energy's Better Buildings Neighborhood Program website.

  16. Spotlight on Key Program Strategies from the Better Buildings Neighborhood Program, Final Evaluation Volume 6

    Broader source: Energy.gov [DOE]

    Final Report: Spotlight on Key Program Strategies from the Better Buildings Neighborhood Program, Final Evaluation Volume 6, American Recovery and Reinvestment Act of 2009, June 2015.

  17. OSTIblog Articles in the spotlight Topic | OSTI, US Dept of Energy...

    Office of Scientific and Technical Information (OSTI)

    NYU-Poly's Professor Maurizio Porfiridevelops underwater robots that may steer fish populations away from hazards. EDUconnections spotlights the most amazing science programs at ...

  18. #LabSpotlight - People of the National Labs | Department of Energy

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

    #LabSpotlight - People of the National Labs #LabSpotlight - People of the National Labs #LabSpotlight - People of the National Labs Our #LabSpotlight series profiles standout individuals at the National Labs. From a theoretical physicist working to better understand one of the most elusive particles in the universe to a master optician hand-polishing precision optics used in high-powered lasers, the National Labs are home to some of the most exceptional people in their fields. These are their

  19. Energy efficient alternatives to halogen torchieres

    SciTech Connect (OSTI)

    Siminovitch, M.; Marr, L.; Mitchell, J.; Page, E.

    1997-03-01

    A series of novel energy efficient torchiere systems have been developed using compact fluorescent lamps (CFLs). These systems were studied photometrically and compared with the performance of traditional commercially available tungsten halogen sources. Gonio-photometric data and power assessments indicate that significant lighting energy savings can be obtained by utilizing CFL sources instead of standard tungsten halogen sources. This energy savings is jointly due to the higher source efficacy of the CFLs and the surprisingly poor performance of the imported 300 Watt halogen lamps. Experimental data shows that a 50 to 60 Watt CFL will effectively lumen match a variety of 300 Watt tungsten halogen sources with 5 to 10 times the efficacy. CFL torchieres have additional benefits of higher power quality and cooler lamp operating temperature, making them safer fixtures.

  20. Project Profile: Advanced Polymeric Reflector for CSP Applications |

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

    Department of Energy Polymeric Reflector for CSP Applications Project Profile: Advanced Polymeric Reflector for CSP Applications Abengoa logo Abengoa Solar, under the CSP R&D FOA, is developing and scaling up a previously demonstrated advanced solar reflector material for use in CSP applications. Approach A man holding a reflector panel above his head. This reflector material, last produced in 2003 under sponsorship by the National Renewable Energy Laboratory (NREL), is being

  1. State and Local Spotlight - May 2016 | Department of Energy

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

    May 2016 State and Local Spotlight - May 2016 May 5, 2016 - 4:45pm Addthis Clean Energy News and Events for State and Local Leaders A monthly update from EERE's Weatherization and Intergovernmental Programs Office (WIP) for state, local, and K-12 officials featuring resources to advance successful, high-impact, and long-lasting clean energy policies, programs, and projects. Featured Publication Energy Savings Performance Contracting: Guidelines for Developing, Staffing, and Overseeing a State

  2. In The Spotlight | National Nuclear Security Administration | (NNSA)

    National Nuclear Security Administration (NNSA)

    Who We Are In The Spotlight Allison Davis Sandia National Laboratories Allison Davis October 2009 NNSA Defense Programs Award of Excellence Two individuals and nine teams received the NNSA Defense Programs Awards of Excellence at ceremonies this year at Sandia National Laboratories in New Mexico and California. The NNSA Defense Programs Awards of Excellence were created in the early 1980s to give special recognition to those at the laboratories and plants directly associated with the stockpile

  3. State and Local Spotlight - April 2016 | Department of Energy

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

    April 2016 State and Local Spotlight - April 2016 April 8, 2016 - 4:41pm Addthis Clean Energy News and Events for State and Local Leaders A monthly update from EERE's Weatherization and Intergovernmental Programs Office (WIP) for state, local, and K-12 officials featuring resources to advance successful, high-impact, and long-lasting clean energy policies, programs, and projects. Featured Publication Photo of a school building. New Implementation Model: Nevada's School District Targets Facility

  4. State and Local Spotlight - February 2016 | Department of Energy

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

    February 2016 State and Local Spotlight - February 2016 February 17, 2016 - 4:36pm Addthis Clean Energy News and Events for State and Local Leaders A monthly update from EERE's Weatherization and Intergovernmental Programs Office (WIP) for state, local, and K-12 officials featuring resources to advance successful, high-impact, and long-lasting clean energy policies, programs, and projects. Featured Topic of Interest Photo of meters on a wall. New Resources for Energy Efficiency Savings

  5. State and Local Spotlight - June 2016 | Department of Energy

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

    June 2016 State and Local Spotlight - June 2016 June 9, 2016 - 4:48pm Addthis Clean Energy News and Events for State and Local Leaders A monthly update from EERE's Weatherization and Intergovernmental Programs Office (WIP) for state, local, and K-12 officials featuring resources to advance successful, high-impact, and long-lasting clean energy policies, programs, and projects. Featured Publication Energy Savings Performance Contracting (ESPC): A Primer for K-12 Schools This report provides K-12

  6. State and Local Spotlight - March 2016 | Department of Energy

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

    March 2016 State and Local Spotlight - March 2016 March 11, 2016 - 4:39pm Addthis Clean Energy News and Events for State and Local Leaders A monthly update from EERE's Weatherization and Intergovernmental Programs Office (WIP) for state, local, and K-12 officials featuring resources to advance successful, high-impact, and long-lasting clean energy policies, programs, and projects. Featured Publications Photo of pathways paper. SEE Action Guide for States Presents Established Policy and Program

  7. Healthcare Energy: Spotlight on Medical Equipment | Department of Energy

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

    Medical Equipment Healthcare Energy: Spotlight on Medical Equipment The Building Technologies Office conducted a healthcare energy end-use monitoring project in partnership with two hospitals. Additional plug load data from medical office buildings were provided by Mazzetti, Inc. See below for a few highlights from monitoring large medical imaging equipment and medical office building plug loads. Graphic showing the average weekday energy use of a CT machine. Graph showing average weekday energy

  8. Nuclear Transmutations in HFIR's Beryllium Reflector and Their Impact on Reactor Operation and Reflector Disposal

    SciTech Connect (OSTI)

    Chandler, David [ORNL; Maldonado, G Ivan [ORNL; Primm, Trent [ORNL; Proctor, Larry Duane [ORNL

    2012-01-01

    The High Flux Isotope Reactor located at the Oak Ridge National Laboratory utilizes a large cylindrical beryllium reflector that is subdivided into three concentric regions and encompasses the compact reactor core. Nuclear transmutations caused by neutron activation occur in the beryllium reflector regions, which leads to unwanted neutron absorbing and radiation emitting isotopes. During the past year, two topics related to the HFIR beryllium reflector were reviewed. The first topic included studying the neutron poison (helium-3 and lithium-6) buildup in the reflector regions and its affect on beginning-of-cycle reactivity. A new methodology was developed to predict the reactivity impact and estimated symmetrical critical control element positions as a function of outage time between cycles due to helium-3 buildup and was shown to be in better agreement with actual symmetrical critical control element position data than the current methodology. The second topic included studying the composition of the beryllium reflector regions at discharge as well as during decay to assess the viability of transporting, storing, and ultimately disposing the reflector regions currently stored in the spent fuel pool. The post-irradiation curie inventories were used to determine whether the reflector regions are discharged as transuranic waste or become transuranic waste during the decay period for disposal purposes and to determine the nuclear hazard category, which may affect the controls invoked for transportation and temporary storage. Two of the reflector regions were determined to be transuranic waste at discharge and the other region was determined to become transuranic waste in less than 2 years after being discharged due to the initial uranium content (0.0044 weight percent uranium). It was also concluded that all three of the reflector regions could be classified as nuclear hazard category 3 (potential for localized consequences only).

  9. Healthcare Energy: Spotlight on Chiller Plants | Department of Energy

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

    Chiller Plants Healthcare Energy: Spotlight on Chiller Plants The Building Technologies Office conducted a healthcare energy end-use monitoring project in partnership with two hospitals. See below for a few highlights from monitoring chiller plant energy. Image of a chiller plant. Chiller Energy Annual site energy use intensities (EUIs) for chiller energy were estimated to be 27.7 kBtu/ft2-yr for the the Massachusetts General Hospital (MGH) Gray Building and 26.8 kBtu/ft2-yr for the State

  10. Method and apparatus for low temperature destruction of halogenated hydrocarbons

    DOE Patents [OSTI]

    Reagen, William Kevin; Janikowski, Stuart Kevin

    1999-01-01

    A method and apparatus for decomposing halogenated hydrocarbons are provided. The halogenated hydrocarbon is mixed with solvating agents and maintained in a predetermined atmosphere and at a predetermined temperature. The mixture is contacted with recyclable reactive material for chemically reacting with the recyclable material to create dehalogenated hydrocarbons and halogenated inorganic compounds. A feature of the invention is that the process enables low temperature destruction of halogenated hydrocarbons.

  11. Dual annular rotating "windowed" nuclear reflector reactor control system

    DOE Patents [OSTI]

    Jacox, Michael G.; Drexler, Robert L.; Hunt, Robert N. M.; Lake, James A.

    1994-01-01

    A nuclear reactor control system is provided in a nuclear reactor having a core operating in the fast neutron energy spectrum where criticality control is achieved by neutron leakage. The control system includes dual annular, rotatable reflector rings. There are two reflector rings: an inner reflector ring and an outer reflector ring. The reflectors are concentrically assembled, surround the reactor core, and each reflector ring includes a plurality of openings. The openings in each ring are capable of being aligned or non-aligned with each other. Independent driving means for each of the annular reflector rings is provided so that reactor criticality can be initiated and controlled by rotation of either reflector ring such that the extent of alignment of the openings in each ring controls the reflection of neutrons from the core.

  12. Passivation of quartz for halogen-containing light sources

    DOE Patents [OSTI]

    Falkenstein, Zoran

    1999-01-01

    Lifetime of halogen containing VUV, UV, visible or IR light sources can be extended by passivating the quartz or glass gas containers with halogens prior to filling the quartz with the halogen and rare gas mixtures used to produce the light.

  13. Retention of Halogens in Waste Glass

    SciTech Connect (OSTI)

    Hrma, Pavel R.

    2010-05-01

    In spite of their potential roles as melting rate accelerators and foam breakers, halogens are generally viewed as troublesome components for glass processing. Of five halogens, F, Cl, Br, I, and At, all but At may occur in nuclear waste. A nuclear waste feed may contain up to 10 g of F, 4 g of Cl, and ?100 mg of Br and I per kg of glass. The main concern is halogen volatility, producing hazardous fumes and particulates, and the radioactive iodine 129 isotope of 1.7x10^7-year half life. Because F and Cl are soluble in oxide glasses and tend to precipitate on cooling, they can be retained in the waste glass in the form of dissolved constituents or as dispersed crystalline inclusions. This report compiles known halogen-retention data in both high-level waste (HLW) and low-activity waste (LAW) glasses. Because of its radioactivity, the main focus is on I. Available data on F and Cl were compiled for comparison. Though Br is present in nuclear wastes, it is usually ignored; no data on Br retention were found.

  14. SunShot Spotlight: Solar and Real Estate | Department of Energy

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

    SunShot Spotlight: Solar and Real Estate SunShot Spotlight: Solar and Real Estate SunShot Spotlight: Solar and Real Estate With nearly one million solar energy systems installed on residential rooftops across the country, buying or selling a solar home is getting more and more common. Just like a renovated kitchen or a finished basement increases a home's value, solar has been shown to boost home valuation and shorten a home's time on the market. In addition, new borrowing tools give

  15. Contour mode resonators with acoustic reflectors

    DOE Patents [OSTI]

    Olsson, Roy H.; Fleming, James G.; Tuck, Melanie R.

    2008-06-10

    A microelectromechanical (MEM) resonator is disclosed which has a linear or ring-shaped acoustic resonator suspended above a substrate by an acoustic reflector. The acoustic resonator can be formed with a piezoelectric material (e.g. aluminum nitride, zinc oxide or PZT), or using an electrostatically-actuated material. The acoustic reflector (also termed an acoustic mirror) uses alternating sections of a relatively low acoustic impedance Z.sub.L material and a relatively high acoustic impedance Z.sub.H material to isolate the acoustic resonator from the substrate. The MEM resonator, which can be formed on a silicon substrate with conventional CMOS circuitry, has applications for forming oscillators, rf filters, and acoustic sensors.

  16. The City of Los Angeles Has Its Spotlight on Energy Efficiency | Department

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

    of Energy The City of Los Angeles Has Its Spotlight on Energy Efficiency The City of Los Angeles Has Its Spotlight on Energy Efficiency July 30, 2012 - 9:19am Addthis Mayor Antonio Villaraigosa and the Founding Partners of Los Angeles Better Buildings Challenge sign commitments to reduce energy use in their buildings. | Photo courtesy of the City of Los Angeles. Mayor Antonio Villaraigosa and the Founding Partners of Los Angeles Better Buildings Challenge sign commitments to reduce energy

  17. Home Energy Score Past Webinars and Video Spotlights | Department of Energy

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

    Past Webinars and Video Spotlights Home Energy Score Past Webinars and Video Spotlights Here are past webinars and materials from Home Energy Score. March 17, 2016: Enhance Your Home Inspection Business with Home Energy Score Using DOE's free Home Energy Score, home inspectors can provide a miles-per-gallon type rating to their clients. By offering the rating and accompanying recommendations for efficiency improvements, home inspectors can help clients become eligible for mortgage incentives

  18. Spotlight on Austin, Texas: Best Offer Ever Produces Upgrades in Record Time

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

    Spotlight on Austin, Texas: Best Offer Ever Produces Upgrades in Record Time The Better Buildings Neighborhood Program is part of the national Better Buildings Initiative led by the U.S. Department of Energy. To learn how the Better Buildings Neighborhood Program is making homes more comfortable and businesses more lucrative and to read more from this Spotlight series, visit betterbuildings.energy.gov/neighborhoods. 1 Launch With a Short-Term Promotional Offer to Jump-Start Participation With

  19. Spotlight on Rutland County, Vermont: How Local Ties Lead to Local Wins

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

    April 2011 Version 2 betterbuildings.energy.gov/neighborhoods Spotlight on Rutland County, Vermont: How Local Ties Lead to Local Wins Driving Demand The Better Buildings Neighborhood Program is part of the national Better Buildings Initiative led by the U.S. Department of Energy. To learn how the Better Buildings Neighborhood Program is making homes more comfortable and businesses more lucrative and to read more from this Spotlight series, visit betterbuildings.energy.gov/neighborhoods.

  20. OSTIblog Articles in the spotlight Topic | OSTI, US Dept of Energy Office

    Office of Scientific and Technical Information (OSTI)

    of Scientific and Technical Information spotlight Topic Cool Connections by Kathy Chambers 24 May, 2012 in Products and Content 4315 edulogo.png Cool Connections Read more about 4315 The coolest people are found on OSTI's .EDUconnections Spotlights. Penn State's Dr. Prabhu and Dr. Paulsonresearch different fields but discovered a possible cure for leukemia over a pizza faculty lunch. Howard University's Binanca Baileyis a White House "Champion of Change for Women and Girls in

  1. Method and apparatus for detecting halogenated hydrocarbons

    DOE Patents [OSTI]

    Monagle, Matthew (Los Alamos, NM); Coogan, John J. (Los Alamos, NM)

    1997-01-01

    A halogenated hydrocarbon (HHC) detector is formed from a silent discharge (also called a dielectric barrier discharge) plasma generator. A silent discharge plasma device receives a gas sample that may contain one or more HHCs and produces free radicals and excited electrons for oxidizing the HHCs in the gas sample to produce water, carbon dioxide, and an acid including halogens in the HHCs. A detector is used to sensitively detect the presence of the acid. A conductivity cell detector combines the oxidation products with a solvent where dissociation of the acid increases the conductivity of the solvent. The conductivity cell output signal is then functionally related to the presence of HHCs in the gas sample. Other detectors include electrochemical cells, infrared spectrometers, and negative ion mobility spectrometers.

  2. Oxidation of hydrogen halides to elemental halogens

    DOE Patents [OSTI]

    Rohrmann, Charles A. (Kennewick, WA); Fullam, Harold T. (Richland, WA)

    1985-01-01

    A process for oxidizing hydrogen halides having substantially no sulfur impurities by means of a catalytically active molten salt is disclosed. A mixture of the subject hydrogen halide and an oxygen bearing gas is contacted with a molten salt containing an oxidizing catalyst and alkali metal normal sulfates and pyrosulfates to produce an effluent gas stream rich in the elemental halogen and substantially free of sulfur oxide gases.

  3. Process for removal of hydrogen halides or halogens from incinerator gas

    DOE Patents [OSTI]

    Huang, H.S.; Sather, N.F.

    1987-08-21

    A process for reducing the amount of halogens and halogen acids in high temperature combustion gas and through their removal, the formation of halogenated organics at lower temperatures, with the reduction being carried out electrochemically by contacting the combustion gas with the negative electrode of an electrochemical cell and with the halogen and/or halogen acid being recovered at the positive electrode.

  4. Process for removal of hydrogen halides or halogens from incinerator gas

    DOE Patents [OSTI]

    Huang, Hann S.; Sather, Norman F.

    1988-01-01

    A process for reducing the amount of halogens and halogen acids in high temperature combustion gases and through their removal, the formation of halogenated organics at lower temperatures, with the reduction being carried out electrochemically by contacting the combustion gas with the negative electrode of an electrochemical cell and with the halogen and/or halogen acid being recovered at the positive electrode.

  5. Halogen eAppraisal - Performance Appraisals | The Ames Laboratory

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

    Halogen eAppraisal - Performance Appraisals 2015 Performance Appraisal Process 211 - 220: Employee writes self-appraisal. 221 - 310: Evaluating Supervisor writes appraisals for...

  6. Recovery Act: Low-Cost, Highly Lambertian Reflector Composite...

    Office of Scientific and Technical Information (OSTI)

    SciTech Connect Search Results Technical Report: Recovery Act: Low-Cost, Highly Lambertian Reflector Composite For Improved LED Fixture Efficiency and Lifetime Citation Details ...

  7. Recovery Act: Low-Cost, Highly Lambertian Reflector Composite...

    Office of Scientific and Technical Information (OSTI)

    Reflector Composite For Improved LED Fixture Efficiency and Lifetime Teather, Eric 32 ENERGY CONSERVATION, CONSUMPTION, AND UTILIZATION; 36 MATERIALS SCIENCE The overall...

  8. A Generalized Adjoint Approach for Quantifying Reflector Assembly...

    Office of Scientific and Technical Information (OSTI)

    However, there is currently no adjoint-based methodology to obtain uncertainties for ADFs along an interface between a fuel and reflector region. To accommodate leakage effects in ...

  9. Max Tech Electric Heat Pump Water Heater with Lower GWP Halogenated...

    Energy Savers [EERE]

    Max Tech Electric Heat Pump Water Heater with Lower GWP Halogenated Refrigerant Max Tech Electric Heat Pump Water Heater with Lower GWP Halogenated Refrigerant Information flow ...

  10. FIELD SCREENING FOR HALOGENATED VOLATILE ORGANIC COMPOUNDS

    SciTech Connect (OSTI)

    John F. Schabron; Joseph F. Rovani, Jr.; Theresa M. Bomstad

    2003-07-01

    Western Research Institute (WRI) is continuing work toward the development of new screening methodology and a test kit to measure halogenated volatile organic compounds (VOCs) in the field. Heated diode and corona discharge sensors are commonly used to detect leaks of refrigerants from air conditioners, freezers, and refrigerators. They are both selective to the presence of halogens. In prior work, the devices were tested for response to carbon tetrachloride, heptane, toluene, and water vapors. In the current work, sensor response was evaluated with sixteen halogenated VOCs relative to carbon tetrachloride. The results show that the response of the various chlorinated VOCs is within an order of magnitude of the response to carbon tetrachloride for each of the sensors. Thus, for field screening a single response factor can be used. Both types of leak detectors are being further modified to provide an on-board LCD signal readout, which is related to VOC concentration. The units will be fully portable and will operate with 115-V line or battery power. Signal background, noise level, and response data on the Bacharach heated diode detector and the TIF corona discharge detector show that when the response curves are plotted against the log of concentration, the plot is linear to the upper limit for the particular unit, with some curvature at lower levels. When response is plotted directly against concentration, the response is linear at the low end and is curved at the high end. The dynamic ranges for carbon tetrachloride of the two devices from the lower detection limit (S/N=2) to signal saturation are 4-850 vapor parts per million (vppm) for the corona discharge unit and 0.01-70 vppm for the heated diode unit. Additional circuit modifications are being made to lower the detection limit and increase the dynamic response range of the corona discharge unit. The results indicate that both devices show potential utility for future analytical method development work toward

  11. ARM: X-Band Scanning ARM Cloud Radar (W-SACR) Corner Reflector...

    Office of Scientific and Technical Information (OSTI)

    W-SACR) Corner Reflector Raster Scan Title: ARM: X-Band Scanning ARM Cloud Radar (W-SACR) Corner Reflector Raster Scan X-Band Scanning ARM Cloud Radar (W-SACR) Corner Reflector ...

  12. Modeling Mechanical Behavior of a Prismatic Replaceable Reflector Block

    SciTech Connect (OSTI)

    Robert Bratton

    2009-04-01

    This report outlines the development of finite element models used to determine temperature and stresses in a prismatic core reflector block. This initial analysis determines an appropriate temperature distribution in a prismatic reflector from limiting conditions in the adjacent fuel block based on simplifying assumptions.

  13. Method for halogenating or radiohalogenating a chemical compound

    DOE Patents [OSTI]

    Kabalka, George W.

    2006-05-09

    A method for obtaining a halogenated organic compound, whereby an organotrifluoroborate compound is reacted with a halide ion in the presence of an oxidizing agent to produce the corresponding halogenated organic compound. The method may be used for producing radiohalogenated organic compounds.

  14. Impact of HFIR LEU Conversion on Beryllium Reflector Degradation Factors

    SciTech Connect (OSTI)

    Ilas, Dan

    2013-10-01

    An assessment of the impact of low enriched uranium (LEU) conversion on the factors that may cause the degradation of the beryllium reflector is performed for the High Flux Isotope Reactor (HFIR). The computational methods, models, and tools, comparisons with previous work, along with the results obtained are documented and discussed in this report. The report documents the results for the gas and neutronic poison production, and the heating in the beryllium reflector for both the highly enriched uranium (HEU) and LEU HFIR configurations, and discusses the impact that the conversion to LEU may have on these quantities. A time-averaging procedure was developed to calculate the isotopic (gas and poisons) production in reflector. The sensitivity of this approach to different approximations is gauged and documented. The results show that the gas is produced in the beryllium reflector at a total rate of 0.304 g/cycle for the HEU configuration; this rate increases by ~12% for the LEU case. The total tritium production rate in reflector is 0.098 g/cycle for the HEU core and approximately 11% higher for the LEU core. A significant increase (up to ~25%) in the neutronic poisons production in the reflector during the operation cycles is observed for the LEU core, compared to the HEU case, for regions close to the core s horizontal midplane. The poisoning level of the reflector may increase by more than two orders of magnitude during long periods of downtime. The heating rate in the reflector is estimated to be approximately 20% lower for the LEU core than for the HEU core. The decrease is due to a significantly lower contribution of the heating produced by the gamma radiation for the LEU core. Both the isotopic (gas and neutronic poisons) production and the heating rates are spatially non-uniform throughout the beryllium reflector volume. The maximum values typically occur in the removable reflector and close to the midplane.

  15. ARM: Ka-Band Scanning ARM Cloud Radar (KASACR) Corner Reflector...

    Office of Scientific and Technical Information (OSTI)

    Title: ARM: Ka-Band Scanning ARM Cloud Radar (KASACR) Corner Reflector Calibration Ka-Band Scanning ARM Cloud Radar (KASACR) Corner Reflector Calibration Authors: Dan Nelson ; ...

  16. Method of making reflecting film reflector

    DOE Patents [OSTI]

    Cottingham, James G.

    1980-01-01

    A reflector of the reflecting film type is disclosed and which may be used in a heliostatic system for concentrating solar energy and comprising a reflecting film bonded to an appropriate rigid substrate in such a way that specularity of a very high order is achieved. A method of bonding the reflecting film to the substrate is also disclosed and comprises the steps of initially adhering the film to a smooth, clean flat rigid surface with a non-bonding liquid between the rigid surface and film, and then bonding the substrate and film. The non-bonding liquid has a molecular adhesion greater than any stresses due to handling or curing of the bonding agent which is applied between the film and the opposing surface of the rigid substrate.

  17. C3E Spotlights Women Leaders in Clean Energy Careers | Department of Energy

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

    C3E Spotlights Women Leaders in Clean Energy Careers C3E Spotlights Women Leaders in Clean Energy Careers September 16, 2014 - 12:17pm Addthis Watch highlights from last year's Women in Clean Energy Symposium -- an annual event that is working to build a community of professionals dedicated to advancing the careers and goals of women in clean energy. | Video by Matty Greene, Energy Department. Caroline McGregor Policy Analyst, Office of International Affairs How can I participate? Watch the

  18. Metal halogen battery construction with improved technique for producing halogen hydrate

    DOE Patents [OSTI]

    Fong, Walter L.; Catherino, Henry A.; Kotch, Richard J.

    1983-01-01

    An improved electrical energy storage system comprising, at least one cell having a positive electrode and a negative electrode separated by aqueous electrolyte, a store means wherein halogen hydrate is formed and stored as part of an aqueous material having a liquid level near the upper part of the store, means for circulating electrolyte through the cell, conduit means for transmitting halogen gas formed in the cell to a hydrate forming apparatus associated with the store, said hydrate forming apparatus including, a pump to which there is introduced quantities of the halogen gas and chilled water, said pump being located in the store and an outlet conduit leading from the pump and being substantially straight and generally vertically disposed and having an exit discharge into the gas space above the liquid level in the store, and wherein said hydrate forming apparatus is highly efficient and very resistant to plugging or jamming. The disclosure also relates to an improved method for producing chlorine hydrate in zinc chlorine batteries.

  19. Space Reflector Materials for Prometheus Application

    SciTech Connect (OSTI)

    J. Nash; V. Munne; LL Stimely

    2006-01-31

    The two materials studied in depth which appear to have the most promise in a Prometheus reflector application are beryllium (Be) and beryllium oxide (BeO). Three additional materials, magnesium oxide (MgO), alumina (Al{sub 2}O{sub 3}), and magnesium aluminate spinel (MgAl{sub 2}O{sub 4}) were also recently identified to be of potential interest, and may have promise in a Prometheus application as well, but are expected to be somewhat higher mass than either a Be or BeO based reflector. Literature review and analysis indicates that material properties for Be are largely known, but there are gaps in the properties of Be0 relative to the operating conditions for a Prometheus application. A detailed preconceptual design information document was issued providing material properties for both materials (Reference (a)). Beryllium oxide specimens were planned to be irradiated in the JOY0 Japanese test reactor to partially fill the material property gaps, but more testing in the High Flux Isotope Reactor (HFIR) test reactor at Oak Ridge National Laboratory (ORNL) was expected to be needed. A key issue identified for BeO was obtaining material for irradiation testing with an average grain size of {approx}5 micrometers, reminiscent of material for which prior irradiation test results were promising. Current commercially available material has an average grain size of {approx}10 micrometers. The literature indicated that improved irradiation performance could be expected (e.g., reduced irradiation-induced swelling) with the finer grain size material. Confirmation of these results would allow the use of historic irradiated materials test results from the literature, reducing the extent of required testing and therefore the cost of using this material. Environmental, safety and health (ES&H) concerns associated with manufacturing are significant but manageable for Be and BeO. Although particulate-generating operations (e.g., machining, grinding, etc.) involving Be

  20. Monthly optimum inclination of glass cover and external reflector of a basin type solar still with internal and external reflector

    SciTech Connect (OSTI)

    Tanaka, Hiroshi

    2010-11-15

    In this report, we present a theoretical analysis of a basin type solar still with internal and external reflectors. The external reflector is a flat plate that extends from the back wall of the still, and can presumably be inclined forwards or backwards according to the month. We have theoretically predicted the daily amount of distillate produced by the still throughout the year, which varies according to the inclination angle of both the glass cover and the external reflector, at 30 N latitude. We found the optimum external reflector inclination for each month for a still with a glass cover inclination of 10-50 deg. The increase in the average daily amount of distillate throughout the year of a still with inclined external reflector with optimum inclination in addition to an internal reflector, compared to a conventional basin type still was predicted to be 29%, 43% or 67% when the glass cover inclination is 10 deg, 30 deg or 50 deg and the length of external reflector is half the still's length. (author)

  1. EECBG Success Story: The City of Los Angeles Has Its Spotlight on Energy Efficiency

    Broader source: Energy.gov [DOE]

    Los Angeles -- a city known as the “Entertainment Capital of the World” -- now has its spotlight on energy efficiency. The city of Los Angeles held a press event to wrap up the Department of Energy’s Energy Efficiency Community Block Grant (EECBG) program and launch its commitment to the Department’s Better Buildings Challenge. Learn more.

  2. Promising Technology: Parabolic Aluminized Reflector Light-Emitting Diodes

    Broader source: Energy.gov [DOE]

    Parabolic aluminized reflectors, or PARs, are directional lamps typically used in recessed lighting. In contrast to CFLs, LEDs offer additional advantages including no warm up time, improved dimming and control capabilities, and for some products much greater efficacy ratings.

  3. Imaging with Spherically Bent Crystals or Reflectors (Technical Report) |

    Office of Scientific and Technical Information (OSTI)

    SciTech Connect Technical Report: Imaging with Spherically Bent Crystals or Reflectors Citation Details In-Document Search Title: Imaging with Spherically Bent Crystals or Reflectors This paper consists of two parts: Part I describes the working principle of a recently developed x-ray imaging crystal spectrometer, where the astigmatism of spherically bent crystals is being used with advantage to record spatially resolved spectra of highly charged ions for Doppler measurements of the

  4. Solar cell comprising a plasmonic back reflector and method therefor

    DOE Patents [OSTI]

    Ding, I-Kang; Zhu, Jia; Cui, Yi; McGehee, Michael David

    2014-11-25

    A method for forming a solar cell having a plasmonic back reflector is disclosed. The method includes the formation of a nanoimprinted surface on which a metal electrode is conformally disposed. The surface structure of the nanoimprinted surface gives rise to a two-dimensional pattern of nanometer-scale features in the metal electrode enabling these features to collectively form the plasmonic back reflector.

  5. Project Profile: Advanced Manufacture of Reflectors | Department of Energy

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

    Manufacture of Reflectors Project Profile: Advanced Manufacture of Reflectors University of Arizona logo -- This project is inactive -- The University of Arizona and its partners, under the 2012 Concentrating Solar Power (CSP) SunShot R&D funding opportunity announcement (FOA), are developing technology to improve the optical accuracy and reflectivity of the self-supporting glass mirrors used in CSP collector systems. Approach The research team is working to optimize and validate a novel

  6. Halogenated naphthyl methoxy piperidines for mapping serotonin transporter sites

    DOE Patents [OSTI]

    Goodman, M.M.; Faraj, B.

    1999-07-06

    Halogenated naphthyl methoxy piperidines having a strong affinity for the serotonin transporter are disclosed. Those compounds can be labeled with positron-emitting and/or gamma emitting halogen isotopes by a late step synthesis that maximizes the useable lifeterm of the label. The labeled compounds are useful for localizing serotonin transporter sites by positron emission tomography and/or single photon emission computed tomography.

  7. Halogenated naphthyl methoxy piperidines for mapping serotonin transporter sites

    DOE Patents [OSTI]

    Goodman, Mark M.; Faraj, Bahjat

    1999-01-01

    Halogenated naphthyl methoxy piperidines having a strong affinity for the serotonin transporter are disclosed. Those compounds can be labeled with positron-emitting and/or gamma emitting halogen isotopes by a late step synthesis that maximizes the useable lifeterm of the label. The labeled compounds are useful for localizing serotonin transporter sites by positron emission tomography and/or single photon emission computed tomography.

  8. Treatment of halogen-containing waste and other waste materials

    DOE Patents [OSTI]

    Forsberg, C.W.; Beahm, E.C.; Parker, G.W.

    1997-03-18

    A process is described for treating a halogen-containing waste material. The process provides a bath of molten glass containing a sacrificial metal oxide capable of reacting with a halogen in the waste material. The sacrificial metal oxide is present in the molten glass in at least a stoichiometric amount with respect to the halogen in the waste material. The waste material is introduced into the bath of molten glass to cause a reaction between the halogen in the waste material and the sacrificial metal oxide to yield a metal halide. The metal halide is a gas at the temperature of the molten glass. The gaseous metal halide is separated from the molten glass and contacted with an aqueous scrubber solution of an alkali metal hydroxide to yield a metal hydroxide or metal oxide-containing precipitate and a soluble alkali metal halide. The precipitate is then separated from the aqueous scrubber solution. The molten glass containing the treated waste material is removed from the bath as a waste glass. The process of the invention can be used to treat all types of waste material including radioactive wastes. The process is particularly suited for separating halogens from halogen-containing wastes. 3 figs.

  9. Treatment of halogen-containing waste and other waste materials

    DOE Patents [OSTI]

    Forsberg, Charles W.; Beahm, Edward C.; Parker, George W.

    1997-01-01

    A process for treating a halogen-containing waste material. The process provides a bath of molten glass containing a sacrificial metal oxide capable of reacting with a halogen in the waste material. The sacrificial metal oxide is present in the molten glass in at least a stoichiometric amount with respect to the halogen in the waste material. The waste material is introduced into the bath of molten glass to cause a reaction between the halogen in the waste material and the sacrificial metal oxide to yield a metal halide. The metal halide is a gas at the temperature of the molten glass. The gaseous metal halide is separated from the molten glass and contacted with an aqueous scrubber solution of an alkali metal hydroxide to yield a metal hydroxide or metal oxide-containing precipitate and a soluble alkali metal halide. The precipitate is then separated from the aqueous scrubber solution. The molten glass containing the treated waste material is removed from the bath as a waste glass. The process of the invention can be used to treat all types of waste material including radioactive wastes. The process is particularly suited for separating halogens from halogen-containing wastes.

  10. Metal halogen battery system with multiple outlet nozzle for hydrate

    DOE Patents [OSTI]

    Bjorkman, Jr., Harry K.

    1983-06-21

    A metal halogen battery system, including at least one cell having a positive electrode and a negative electrode contacted by aqueous electrolyte containing the material of said metal and halogen, store means whereby halogen hydrate is formed and stored as part of an aqueous material, means for circulating electrolyte through the cell and to the store means, and conduit means for transmitting halogen gas formed in the cell to a hydrate former whereby the hydrate is formed in association with the store means, said store means being constructed in the form of a container which includes a filter means, said filter means being inoperative to separate the hydrate formed from the electrolyte, said system having, a hydrate former pump means associated with the store means and being operative to intermix halogen gas with aqueous electrolyte to form halogen hydrate, said hydrate former means including, multiple outlet nozzle means connected with the outlet side of said pump means and being operative to minimize plugging, said nozzle means being comprised of at least one divider means which is generally perpendicular to the rotational axes of gears within the pump means, said divider means acting to divide the flow from the pump means into multiple outlet flow paths.

  11. Large-Scale All-Dielectric Metamaterial Perfect Reflectors

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

    Moitra, Parikshit; Slovick, Brian A.; li, Wei; Kravchencko, Ivan I.; Briggs, Dayrl P.; Krishnamurthy, S.; Valentine, Jason

    2015-05-08

    All-dielectric metamaterials offer a potential low-loss alternative to plasmonic metamaterials at optical frequencies. In this paper, we take advantage of the low absorption loss as well as the simple unit cell geometry to demonstrate large-scale (centimeter-sized) all-dielectric metamaterial perfect reflectors made from silicon cylinder resonators. These perfect reflectors, operating in the telecommunications band, were fabricated using self-assembly based nanosphere lithography. In spite of the disorder originating from the self-assembly process, the average reflectance of the metamaterial perfect reflectors is 99.7% at 1530 nm, surpassing the reflectance of metallic mirrors. Moreover, the spectral separation of the electric and magnetic resonances canmore » be chosen to achieve the required reflection bandwidth while maintaining a high tolerance to disorder. Finally, the scalability of this design could lead to new avenues of manipulating light for low-loss and large-area photonic applications.« less

  12. Lab Spotlight: Sandia National Lab Team Wins Best in Class Sustainability

    National Nuclear Security Administration (NNSA)

    Award | National Nuclear Security Administration | (NNSA) Spotlight: Sandia National Lab Team Wins Best in Class Sustainability Award Monday, June 15, 2015 - 11:01am Sandia Team - Sustainability Award On June 8, Department of Energy's (DOE) National Nuclear Security Administration's (NNSA) Sandia Field Office Manager Jeffrey Harrell presented a Best in Class NNSA Sustainability Award to a team from Sandia National Laboratories. The award was in the Innovation and Holistic Approach Category

  13. Building America Research Teams: Spotlight on ARIES and NorthernSTAR |

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

    Department of Energy ARIES and NorthernSTAR Building America Research Teams: Spotlight on ARIES and NorthernSTAR May 14, 2015 - 12:36pm Addthis This article continues our series of profiles about the Building America research teams-multidisciplinary industry partnerships that work to make high performance homes a reality for all Americans. This month's article focuses on Advanced Residential Integrated Energy Solutions and NorthernSTAR Building America Partnership-leaders in research and

  14. DOE Sustainability SPOtlight U.S. Department of Energy Sustainability Performance Office

    Energy Savers [EERE]

    Issue 42 February 2015 DOE Sustainability SPOtlight U.S. Department of Energy Sustainability Performance Office SUSTAINABILITY NEWS SPO Launces Sustainability Financial Assistance Program On January 26th, the Sustainability Performance Office (SPO) launched the SPO Funding Opportunity Announcement (SPOFOA), a first- of-its-kind program designed to expand sustainable technologies and practices across the Department of Energy (DOE) complex. SPOFOA offers financial assistance to DOE programs,

  15. Spotlight on Austin, Texas: Let Your Contractor Be Your Guide for Big Rewards

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

    1 Spotlight on Austin, Texas: Let Your Contractor Be Your Guide for Big Rewards Workforce All About Contractors Austin Energy, a municipally owned utility, has a long history of collaborating closely with the building contractors in its area to deliver energy efficiency programs, which benefits both parties involved. Because contractors understand that Austin Energy has made a long-term commitment to supporting energy efficiency, they have been willing to invest time and money into the technical

  16. Spotlight on Seattle, Washington: Community Partnerships Work to Extend Program Reach

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

    Revised July 2011 Version 2 Spotlight on Seattle, Washington: Community Partnerships Work to Extend Program Reach Getting Started 1 Seattle Moves the Needle With the Help of Its Partners Seattle's Community Power Works (CPW) program has engaged a vast network of partners to build on existing capacity and knowledge, extending the reach of its program in a short period of time. By evaluating potential partnerships and identifying strategic opportuni- ties to augment and enhance local ideas and

  17. Spotlight: Two Los Alamos scientists honored with E.O. Lawrence Awards

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

    Two Los Alamos scientists honored with E.O. Lawrence Awards Alumni Link: Opportunities, News and Resources for Former Employees Latest Issue:September 2015 all issues All Issues » submit Spotlight: Two Los Alamos scientists honored with E.O. Lawrence Awards Fryer and Dors noted for achievements in space physics, satellite radiation sensors July 1, 2015 Eric E. Dors (l) and Christopher L. Fryer (r) Eric E. Dors (l) and Christopher L. Fryer (r) Contact Linda Anderman Email Outstanding performance

  18. Project Profile: High Performance Reflector Panels for CSP Assemblies |

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

    Department of Energy Concentrating Solar Power » Project Profile: High Performance Reflector Panels for CSP Assemblies Project Profile: High Performance Reflector Panels for CSP Assemblies PPG logo PPG, under the CSP R&D FOA, is aiming to develop and commercialize large-area second-surface glass mirrors that are superior in value, cost, and performance, to existing mirrors on the market today. Approach Photo of a metal stand with flat square-shaped pieces lined up in three rows. This

  19. CALiPER Benchmark Report: Performance of Halogen Incandescent MR16 Lamps and LED Replacement

    SciTech Connect (OSTI)

    Paget, M. L.; Lingard, R. D.; Myer, M. A.

    2008-11-01

    This benchmark report addresses the halogen MR16 lamp and its commercially available light-emitting diode (LED) replacements.

  20. Symmetric and asymmetric halogen-containing metallocarboranylporphyrins and uses thereof

    DOE Patents [OSTI]

    Miura, Michiko; Wu, Haitao

    2013-05-21

    The present invention is directed to low toxicity boronated compounds and methods for their use in the treatment, visualization, and diagnosis of tumors. More specifically, the present invention is directed to low toxicity halogenated, carborane-containing 5,10,15,20-tetraphenylporphyrin compounds and methods for their use particularly in boron neutron capture therapy (BNCT) and photodynamic therapy (PDT) for the treatment of tumors of the brain, head and neck, and surrounding tissue. The invention is also directed to using these halogenated, carborane-containing tetraphenylporphyrin compounds in methods of tumor imaging and/or diagnosis such as MRI, SPECT, or PET.

  1. Dual annular rotating [open quotes]windowed[close quotes] nuclear reflector reactor control system

    DOE Patents [OSTI]

    Jacox, M.G.; Drexler, R.L.; Hunt, R.N.M.; Lake, J.A.

    1994-03-29

    A nuclear reactor control system is provided in a nuclear reactor having a core operating in the fast neutron energy spectrum where criticality control is achieved by neutron leakage. The control system includes dual annular, rotatable reflector rings. There are two reflector rings: an inner reflector ring and an outer reflector ring. The reflectors are concentrically assembled, surround the reactor core, and each reflector ring includes a plurality of openings. The openings in each ring are capable of being aligned or non-aligned with each other. Independent driving means for each of the annular reflector rings is provided so that reactor criticality can be initiated and controlled by rotation of either reflector ring such that the extent of alignment of the openings in each ring controls the reflection of neutrons from the core. 4 figures.

  2. ARM: Ka-Band Scanning ARM Cloud Radar (KASACR) Corner Reflector...

    Office of Scientific and Technical Information (OSTI)

    Title: ARM: Ka-Band Scanning ARM Cloud Radar (KASACR) Corner Reflector Raster Scan Ka-Band Scanning ARM Cloud Radar (KASACR) Corner Reflector Raster Scan Authors: Dan Nelson ; ...

  3. Step-Stress Accelerated Degradation Testing for Solar Reflectors: Preprint

    SciTech Connect (OSTI)

    Jones, W.; Elmore, R.; Lee, J.; Kennedy, C.

    2011-09-01

    To meet the challenge to reduce the cost of electricity generated with concentrating solar power (CSP) new low-cost reflector materials are being developed including metalized polymer reflectors and must be tested and validated against appropriate failure mechanisms. We explore the application of testing methods and statistical inference techniques for quantifying estimates and improving lifetimes of concentrating solar power (CSP) reflectors associated with failure mechanisms initiated by exposure to the ultraviolet (UV) part of the solar spectrum. In general, a suite of durability and reliability tests are available for testing a variety of failure mechanisms where the results of a set are required to understand overall lifetime of a CSP reflector. We will focus on the use of the Ultra-Accelerated Weathering System (UAWS) as a testing device for assessing various degradation patterns attributable to accelerated UV exposure. Depending on number of samples, test conditions, degradation and failure patterns, test results may be used to derive insight into failure mechanisms, associated physical parameters, lifetimes and uncertainties. In the most complicated case warranting advanced planning and statistical inference, step-stress accelerated degradation (SSADT) methods may be applied.

  4. Long-Life Self-Renewing Solar Reflector Stack

    DOE Patents [OSTI]

    Butler, Barry Lynn

    1997-07-08

    A long-life solar reflector includes a solar collector substrate and a base layer bonded to a solar collector substrate. The first layer includes a first reflective layer and a first acrylic or transparent polymer layer covering the first reflective layer to prevent exposure of the first reflective layer. The reflector also includes at least one upper layer removably bonded to the first acrylic or transparent polymer layer of the base layer. The upper layer includes a second reflective layer and a second acrylic or transparent polymer layer covering the second reflective layer to prevent exposure of the second reflective layer. The upper layer may be removed from the base reflective layer to expose the base layer, thereby lengthening the useful life of the solar reflector. A method of manufacturing a solar reflector includes the steps of bonding a base layer to a solar collector substrate, wherein the base reflective layer includes a first reflective layer and a first transparent polymer or acrylic layer covering the first reflective layer; and removably bonding a first upper layer to the first transparent polymer or acrylic layer of the base layer. The first upper layer includes a second reflective layer and a second transparent polymer or acrylic layer covering the second reflective layer to prevent exposure of the second reflective layer.

  5. Method for selective dehalogenation of halogenated polyaromatic compounds

    DOE Patents [OSTI]

    Farcasiu, Malvina; Petrosius, Steven C.

    1994-01-01

    A method for dehalogenating halogenated polyaromatic compounds is provided wherein the polyaromatic compounds are mixed with a hydrogen donor solvent and a carbon catalyst in predetermined proportions, the mixture is maintained at a predetermined pressure, and the mixture is heated to a predetermined temperature and for a predetermined time.

  6. Process for oxidation of hydrogen halides to elemental halogens

    DOE Patents [OSTI]

    Lyke, Stephen E.

    1992-01-01

    An improved process for generating an elemental halogen selected from chlorine, bromine or iodine, from a corresponding hydrogen halide by absorbing a molten salt mixture, which includes sulfur, alkali metals and oxygen with a sulfur to metal molar ratio between 0.9 and 1.1 and includes a dissolved oxygen compound capable of reacting with hydrogen halide to produce elemental halogen, into a porous, relatively inert substrate to produce a substrate-supported salt mixture. Thereafter, the substrate-supported salt mixture is contacted (stage 1) with a hydrogen halide while maintaining the substrate-supported salt mixture during the contacting at an elevated temperature sufficient to sustain a reaction between the oxygen compound and the hydrogen halide to produce a gaseous elemental halogen product. This is followed by purging the substrate-supported salt mixture with steam (stage 2) thereby recovering any unreacted hydrogen halide and additional elemental halogen for recycle to stage 1. The dissolved oxygen compound is regenerated in a high temperature (stage 3) and an optical intermediate temperature stage (stage 4) by contacting the substrate-supported salt mixture with a gas containing oxygen whereby the dissolved oxygen compound in the substrate-supported salt mixture is regenerated by being oxidized to a higher valence state.

  7. Cube-corner reflectors with interference dielectric coating

    SciTech Connect (OSTI)

    Sokolov, A L; Murashkin, V V; Akent'ev, A S; Karaseva, E A

    2013-09-30

    The cube-corner reflectors (CCRs) with a special interference dielectric coating intended for ring retroreflector systems of space vehicles with uniaxial orientation are considered. The diffraction patterns of radiation reflected from the CCRs with different face coatings are studied. It is shown that the choice of the angle between the faces, the size and the coating of CCR faces allow essential variation in the diffraction pattern, thereby providing its optimisation for solving different navigation problems. (nanogradient dielectric coatings and metamaterials)

  8. Hydroprocessing with a catalyst containing non-hydrolyzable halogen

    SciTech Connect (OSTI)

    Moorehead, E.L.

    1989-07-04

    This patent describes a method for hydroprocessing a hydrocarbon oil. The method comprises contacting a hydrocarbon oil containing asphaltenes under hydroprocessing conditions with a particulate catalyst to convert at least a portion of the asphaltenes in the hydrocarbon oil so as to produce a product oil of reduced asphaltene content, the particulate catalyst comprising at least one active hydrogenation metal component on a support material comprising a zeolite or molecular sieve containing at least one non-hydrolyzable halogen component.

  9. Project Profile: Next-Generation Low-Cost Reflector | Department of Energy

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

    Low-Cost Reflector Project Profile: Next-Generation Low-Cost Reflector PPG logo PPG, under the Baseload CSP FOA, produced a durable first-surface mirror with improved optical performance and geometry design to reduce the unit cost of the reflector subcomponent in a concentrating solar power (CSP) application. Approach Illustration of a rectangle with four layers. PPG Industries created an ultra-large, front-surface glass mirror with an inorganic protective hardcoat. This approach worked toward

  10. Optical performance and durability of solar reflectors protected by an alumina coating

    SciTech Connect (OSTI)

    Kennedy, C.E.; Smilgys, R.V.; Kirkpatrick, D.A.; Ross, J.S.

    1996-07-01

    Solar thermal electric power systems use large solar reflectors to concentrate sunlight to generate electricity. The economic viability of these systems depends on developing a durable, low-cost reflector. The goals for such a reflector are specular reflectance above 90% for at least 10 years under outdoor service conditions and a large-volume manufacturing cost of less than $10.8/m{sup 2} ($1.00/ft{sup 2}). Currently, the best candidate materials for solar reflectors are silver-coated, low-iron glass and silvered polymer films. Polymer reflectors are lighter in weight, offer greater system design flexibility, and have the potential for lower cost than glass reflectors. A promising low-cost reflector consists of a silvered polymer protected by an optically transparent alumina coating. The coating is deposited by an ion-beam-assisted physical vapor deposition (IBAD) technique. Samples of this reflector have maintained high optical performance in accelerated testing at the National Renewable Energy Laboratory for more than 3000 hours. Solar reflectors produced using this technique may represent an opportunity to bring solar power generation to reality.

  11. Demonstration of a Single-Crystal Reflector-Filter for Enhancing Slow Neutron Beams

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

    Muhrer, Guenter; Schönfeldt, Troels; Iverson, Erik B.; Mocko, Michal; Baxter, David V.; Hügle, Thomas; Gallmeier, Franz X.; Klinkby, Esben

    2016-06-14

    The cold polycrystalline beryllium reflector-filter concept has been used to enhance the cold neutron emission of cryogenic hydrogen moderators, while suppressing the intermediate wavelength and fast neutron emission at the same time. While suppressing the fast neutron emission is often desired, the suppression of intermediate wavelength neutrons is often unwelcome. It has been hypothesized that replacing the polycrystalline reflector-filter concept with a single-crystal reflector-filter concept would overcome the suppression of intermediate wavelength neutrons and thereby extend the usability of the reflector-filter concept to shorter but still important wavelengths. In this paper we present the first experimental data on a single-crystalmore » reflector-filter and compare experimental results with hypothesized performance. We find that a single-crystal reflector-filter retains the long-wavelength benefit of the polycrystalline reflector-filter, without suffering the same loss of important intermediate wavelength neutrons. Ultimately, this finding extends the applicability of the reflector-filter concept to intermediate wavelengths, and furthermore indicates that the reflector-filter benefits arise from its interaction with fast (background) neutrons, not with intermediate wavelength neutrons of potential interest in many types of neutron scattering.« less

  12. Reflector and Shield Material Properties for Project Prometheus

    SciTech Connect (OSTI)

    J. Nash

    2005-11-02

    This letter provides updated reflector and shield preliminary material property information to support reactor design efforts. The information provided herein supersedes the applicable portions of Revision 1 to the Space Power Program Preliminary Reactor Design Basis (Reference (a)). This letter partially answers the request in Reference (b) to provide unirradiated and irradiated material properties for beryllium, beryllium oxide, isotopically enriched boron carbide ({sup 11}B{sub 4}C) and lithium hydride. With the exception of {sup 11}B{sub 4}C, the information is provided in Attachments 1 and 2. At the time of issuance of this document, {sup 11}B{sub 4}C had not been studied.

  13. Optical device with low electrical and thermal resistance bragg reflectors

    DOE Patents [OSTI]

    Lear, Kevin L.

    1996-01-01

    A compound-semiconductor optical device and method. The optical device is provided with one or more asymmetrically-graded heterojunctions between compound semiconductor layers for forming a distributed Bragg reflector mirror having an improved electrical and thermal resistance. Efficient light-emitting devices such as light-emitting diodes, resonant-cavity light-emitting diodes, and vertical-cavity surface-emitting lasers may be formed according to the present invention, which may be applied to the formation of resonant-cavity photodetectors.

  14. Optical device with low electrical and thermal resistance Bragg reflectors

    DOE Patents [OSTI]

    Lear, K.L.

    1996-10-22

    A compound-semiconductor optical device and method are disclosed. The optical device is provided with one or more asymmetrically-graded heterojunctions between compound semiconductor layers for forming a distributed Bragg reflector mirror having an improved electrical and thermal resistance. Efficient light-emitting devices such as light-emitting diodes, resonant-cavity light-emitting diodes, and vertical-cavity surface-emitting lasers may be formed according to the present invention, which may be applied to the formation of resonant-cavity photodetectors. 16 figs.

  15. Zinc halogen battery electrolyte composition with lead additive

    DOE Patents [OSTI]

    Henriksen, Gary L.

    1981-01-01

    This disclosure relates to a zinc halogen battery electrolyte composition containing an additive providing improved zinc-on-zinc recyclability. The improved electrolyte composition involves the use of a lead additive to inhibit undesirable irregular plating and reduce nodular or dendritic growth on the electrode surface. The lead-containing electrolyte composition of the present invention appears to influence not only the morphology of the base plate zinc, but also the morphology of the zinc-on-zinc replate. In addition, such lead-containing electrolyte compositions appear to reduce hydrogen formation.

  16. Ultraviolet reflector materials for solar detoxification of hazardous waste

    SciTech Connect (OSTI)

    Jorgensen, G.; Govindarajan, R.

    1991-07-01

    Organic waste detoxification requires cleavage of carbon bonds. Such reactions can be photo-driven by light that is energetic enough to disrupt such bonds. Alternately, light can be used to activate catalyst materials, which in turn can break organic bonds. In either case, photons with wavelengths less than 400 nm are required. Because the terrestrial solar resource below 400 nm is so small (roughly 3% of the available spectrum), highly efficient optical concentrators are needed that can withstand outdoor service conditions. In the past, optical elements for solar application have been designed to prevent ultraviolet (uv) radiation from reaching the reflective layer to avoid the potentially harmful effects of such light on the collector materials themselves. This effectively forfeits the uv part of the spectrum in return for some measure of protection against optical degradation. To optimize the cost/performance benefit of photochemical reaction systems, optical materials must be developed that are not only highly efficient but also inherently stable against the radiation they are designed to concentrate. The requirements of uv optical elements in terms of appropriate spectral bands and level of reflectance are established based upon the needs of photochemical applications. Relevant literature on uv reflector materials is reviewed which, along with discussions with industrial contacts, allows the establishment of a data base of currently available materials. Although a number of related technologies exist that require uv reflectors, to date little attention has been paid to achieving outdoor durability required for solar applications. 49 refs., 3 figs.

  17. Employee Spotlight

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

    From shoring up floors to building a brand-new home in southern Africa, Laura McClellan spends much of her free time helping people in extreme poverty. 82316 Melissa Montoya ...

  18. Spotlights Archive

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

    ...

  19. Student Spotlight

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

    Student Impact: The study of laser-induced damage in optics plays a critical role in modeling the lifetime of optics and implementing the operation strategies using models and ...

  20. Student Spotlight

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

    Project Name: Image Analysis Classification algorithm to automatically classify NIF optics damage sites Project Description: Develop a classification system of potential damage...

  1. Student Spotlight

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

    Zobrist Nick Zobrist Junior (graduating spring 2015) Physics and Applied Mathematics, U.C. Berkeley, Area of NIF: Optics Inspection Tell us about your work at NIF. I'm here to ...

  2. Halogen-free benzoxazine based curable compositions for high TG applications

    DOE Patents [OSTI]

    Tietze, Roger; Nguyen, Yen-Loan

    2015-03-10

    The present invention provides a halogen-free curable composition including a benzoxazine monomer, at least one epoxy resin, a catalyst, a toughening agent and a solvent. The halogen-free curable composition is especially suited for use in automobile and aerospace applications since the composition, upon curing, produces a composite having a high glass transition temperature.

  3. Reflector for efficient coupling of a laser beam to air or other fluids

    DOE Patents [OSTI]

    Kare, J.T.

    1992-10-06

    A reflector array is disclosed herein that provides a controlled region or regions of plasma breakdowns from a laser beam produced at a remotely-based laser source. The plasma may be applied to produce thrust to propel a spacecraft, or to diagnose a laser beam, or to produce shock waves. The spacecraft propulsion system comprises a reflector array attached to the vehicle. The reflector array comprises a plurality of reflectors spaced apart on a reflective surface, with each reflector acting as an independent focusing mirror. The reflectors are spaced closely together to form a continuous or partially-continuous surface. The reflector array may be formed from a sheet of reflective material, such as copper or aluminum. In operation, a beam of electromagnetic energy, such as a laser beam, is directed at the reflectors which focus the reflected electromagnetic energy at a plurality of regions off the surface. The energy concentrated in the focal region causes a breakdown of the air or other fluid in the focal region, creating a plasma. Electromagnetic energy is absorbed in the plasma and it grows in volume, compressing and heating the adjacent fluid thereby providing thrust. Laser pulses may be applied repetitively. After each such thrust pulse, fresh air can be introduced next to the surface either laterally, or through a perforated surface. If air or some other gas or vapor is supplied, for example from a tank carried on board a vehicle, this invention may also be used to provide thrust in a vacuum environment. 10 figs.

  4. Reflector for efficient coupling of a laser beam to air or other fluids

    DOE Patents [OSTI]

    Kare, Jordin T.

    1992-01-01

    A reflector array is disclosed herein that provides a controlled region or regions of plasma breakdowns from a laser beam produced at a remotely-based laser source. The plasma may be applied to produce thrust to propel a spacecraft, or to diagnose a laser beam, or to produce shockwaves. The spacecraft propulsion system comprises a reflector array attached to the vehicle. The reflector array comprises a plurality of reflectors spaced apart on a reflective surface, with each reflector acting as an independent focusing mirror. The reflectors are spaced closely together to form a continuous or partially-continuous surface. The reflector array may be formed from a sheet of reflective material, such as copper or aluminum. In operation, a beam of electromagnetic energy, such as a laser beam, is directed at the reflectors which focus the reflected electromagnetic energy at a plurality of regions off the surface. The energy concentrated in the focal region causes a breakdown of the air or other fluid in the focal region, creating a plasma. Electromagnetic energy is absorbed in the plasma and it grows in volume, compressing and heating the adjacent fluid thereby providing thrust. Laser pulses may be applied repetitively. After each such thrust pulse, fresh air can be introduced next to the surface either laterally, or through a perforated surface. If air or some other gas or vapor is supplied, for example from a tank carried on board a vehicle, this invention may also be used to provide thrust in a vacuum environment.

  5. Advanced Manufacture of Second-Surface, Silvered Glass Reflectors for High-Performance, Low-Cost CSP Collector Systems

    Broader source: Energy.gov [DOE]

    Advanced Manufacture of Second-Surface, Silvered Glass Reflectors for High-Performance, Low-Cost CSP Collector Systems

  6. Distributed bragg reflector using AIGaN/GaN

    DOE Patents [OSTI]

    Waldrip, Karen E.; Lee, Stephen R.; Han, Jung

    2004-08-10

    A supported distributed Bragg reflector or superlattice structure formed from a substrate, a nucleation layer deposited on the substrate, and an interlayer deposited on the nucleation layer, followed by deposition of (Al,Ga,B)N layers or multiple pairs of (Al,Ga,B)N/(Al,Ga,B)N layers, where the interlayer is a material selected from AlN, Al.sub.x Ga.sub.1-x N, and AlBN with a thickness of approximately 20 to 1000 angstroms. The interlayer functions to reduce or eliminate the initial tensile growth stress, thereby reducing cracking in the structure. Multiple interlayers utilized in an AlGaN/GaN DBR structure can eliminate cracking and produce a structure with a reflectivity value greater than 0.99.

  7. Electrophoretic deposited TiO2 pigment-based back reflectors for thin film solar cells

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

    Bills, Braden; Morris, Nathan; Dubey, Mukul; Wang, Qi; Fan, Qi Hua

    2015-01-16

    Highly reflective coatings with strong light scattering effect have many applications in optical components and optoelectronic devices. This paper reports titanium dioxide (TiO2) pigment-based reflectors that have 2.5 times higher broadband diffuse reflection than commercially produced aluminum or silver based reflectors and result in efficiency enhancements of a single-junction amorphous Si solar cell. Electrophoretic deposition is used to produce pigment-based back reflectors with high pigment density, controllable film thickness and site-specific deposition. Electrical conductivity of the pigment-based back reflectors is improved by creating electrical vias throughout the pigment-based back reflector by making holes using an electrical discharge / dielectric breakdownmore » approach followed by a second electrophoretic deposition of conductive nanoparticles into the holes. While previous studies have demonstrated the use of pigment-based back reflectors, for example white paint, on glass superstrate configured thin film Si solar cells, this work presents a scheme for producing pigment-based reflectors on complex shape and flexible substrates. Finally, mechanical durability and scalability are demonstrated on a continuous electrophoretic deposition roll-to-roll system which has flexible metal substrate capability of 4 inch wide and 300 feet long.« less

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

    SciTech Connect (OSTI)

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

    2002-02-13

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

  9. Point-focus concentrator reflector assembly: Phase 1

    SciTech Connect (OSTI)

    Not Available

    1987-11-01

    A point-focus concentrator reflective assembly was developed in Phase I on contract 21-3695 under the direction of Sandia National Laboratories, Albuquerque. This concentrator is conventonal in presentation, yet innovative in detail. The development concentrated on structural efficiency and production design to achieve a high performance at minimum cost. The concentrator design achievs stiffness and strength through the integration of two structural elements. The optical element provides the reflective surface accuracy; a secondary support structure provides resistance to uniform and non-uniform load conditions. A retractable receiver strut, which moves the power conversion assembly out of focus in emergency power loss, was also incorporated. This same assembly provides maintanance access to the engine near ground level. A full-scale optical element was fabricated. Slope error was measured at 1 mrad. Concentrator performance was projected to be 88%, optical. This point-focus concentrator reflector assembly design provides low weight, low cost, and simplicity. Our analysis indicates these benefits are gained without impairing performance. 7 refs., 44 figs., 10 tabs.

  10. Photodetector with absorbing region having resonant periodic absorption between reflectors

    DOE Patents [OSTI]

    Bryan, Robert P.; Olbright, Gregory R.; Brennan, Thomas M.; Tsao, Jeffrey Y.

    1995-02-14

    A photodetector that is responsive to a wavelength or wavelengths of interest which have heretofore been unrealized. The photodetector includes a resonant cavity structure bounded by first and second reflectors, the resonant cavity structure being resonant at the wavelength or wavelengths of interest for containing a plurality of standing waves therein. The photodetector further includes a radiation absorbing region disposed within the resonant cavity structure, the radiation absorbing region including a plurality of radiation absorbing layers spaced apart from one another by a distance substantially equal to a distance between antinodes of adjacent ones of the standing waves. Each of radiation absorbing layers is spatially positioned at a location of one of the antinodes of one of the standing waves such that radiation absorption is enhanced. The radiation absorbing layers may be either bulk layers or quantum wells includes a plurality of layers, each of which is comprised of a strained layer of InGaAs. Individual ones of the InGaAs layers are spaced apart from one another by a GaAs barrier layer.

  11. Photodetector with absorbing region having resonant periodic absorption between reflectors

    DOE Patents [OSTI]

    Bryan, R.P.; Olbright, G.R.; Brennan, T.M.; Tsao, J.Y.

    1995-02-14

    A photodetector is disclosed that is responsive to a wavelength or wavelengths of interest which have heretofore been unrealized. The photodetector includes a resonant cavity structure bounded by first and second reflectors, the resonant cavity structure being resonant at the wavelength or wavelengths of interest for containing a plurality of standing waves therein. The photodetector further includes a radiation absorbing region disposed within the resonant cavity structure, the radiation absorbing region including a plurality of radiation absorbing layers spaced apart from one another by a distance substantially equal to a distance between antinodes of adjacent ones of the standing waves. Each of radiation absorbing layers is spatially positioned at a location of one of the antinodes of one of the standing waves such that radiation absorption is enhanced. The radiation absorbing layers may be either bulk layers or quantum wells includes a plurality of layers, each of which is comprised of a strained layer of InGaAs. Individual ones of the InGaAs layers are spaced apart from one another by a GaAs barrier layer. 11 figs.

  12. Max Tech Electric Heat Pump Water Heater with Lower GWP Halogenated

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

    Refrigerant | Department of Energy Max Tech Electric Heat Pump Water Heater with Lower GWP Halogenated Refrigerant Max Tech Electric Heat Pump Water Heater with Lower GWP Halogenated Refrigerant Information flow schematic for an integrated heat pump design model and wrapped tank model. Image credit: Oak Ridge National Laboratory. Information flow schematic for an integrated heat pump design model and wrapped tank model. Image credit: Oak Ridge National Laboratory. Information flow schematic

  13. Project Profile: Low-Cost Self-Cleaning Reflector Coatings for CSP

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

    Collectors | Department of Energy Cost Self-Cleaning Reflector Coatings for CSP Collectors Project Profile: Low-Cost Self-Cleaning Reflector Coatings for CSP Collectors Oak Ridge National Laboratory logo -- This project is inactive -- The Oak Ridge National Laboratory (ORNL), under the National Laboratory R&D competitive funding opportunity, is developing self-cleaning, optically transparent coatings that can be applied to the surfaces of heliostats and collector mirrors in concentrating

  14. Deciphering Halogen Competition in Organometallic Halide Perovskite Growth

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

    Keum, Jong Kahk; Ovchinnikova, Olga S.; Chen, Shiyou; Du, Mao-Hua; Ivanov, Ilia N; Rouleau, Christopher; Geohegan, David B.; Xiao, Kai

    2016-03-01

    Organometallic halide perovskites (OHPs) hold great promise for next-generation, low-cost optoelectronic devices. During the chemical synthesis and crystallization of OHP thin films a major unresolved question is the competition between multiple halide species (e.g. I-, Cl-, Br-) in the formation of the mixed halide perovskite crystals. Whether Cl- ions are successfully incorporated into the perovskite crystal structure or alternatively, where they are located, is not yet fully understood. Here, in situ X-ray diffraction measurements of crystallization dynamics are combined with ex situ TOF-SIMS chemical analysis to reveal that Br- or Cl- ions can promote crystal growth, yet reactive I- ionsmore » prevent them from incorporating into the lattice of the final perovskite crystal structure. The Cl- ions are located in the grain boundaries of the perovskite films. These findings significantly advance our understanding of the role of halogens during synthesis of hybrid perovskites, and provide an insightful guidance to the engineering of high-quality perovskite films, essential for exploring superior-performance and cost-effective optoelectronic devices.« less

  15. Midtemperature solar systems test facility predictions for thermal performance of the Acurex solar collector with FEK 244 reflector surface

    SciTech Connect (OSTI)

    Harrison, T.D.

    1981-01-01

    Thermal performance predictions are presented for the Acurex solar collector, with FEK 244 reflector surface, for three output temperatures at five cities in the United States.

  16. Analysis of Halogen-Mercury Reactions in Flue Gas

    SciTech Connect (OSTI)

    Paula Buitrago; Geoffrey Silcox; Constance Senior; Brydger Van Otten

    2010-01-01

    Oxidized mercury species may be formed in combustion systems through gas-phase reactions between elemental mercury and halogens, such as chorine or bromine. This study examines how bromine species affect mercury oxidation in the gas phase and examines the effects of mixtures of bromine and chlorine on extents of oxidation. Experiments were conducted in a bench-scale, laminar flow, methane-fired (300 W), quartz-lined reactor in which gas composition (HCl, HBr, NO{sub x}, SO{sub 2}) and temperature profile were varied. In the experiments, the post-combustion gases were quenched from flame temperatures to about 350 C, and then speciated mercury was measured using a wet conditioning system and continuous emissions monitor (CEM). Supporting kinetic calculations were performed and compared with measured levels of oxidation. A significant portion of this report is devoted to sample conditioning as part of the mercury analysis system. In combustion systems with significant amounts of Br{sub 2} in the flue gas, the impinger solutions used to speciate mercury may be biased and care must be taken in interpreting mercury oxidation results. The stannous chloride solution used in the CEM conditioning system to convert all mercury to total mercury did not provide complete conversion of oxidized mercury to elemental, when bromine was added to the combustion system, resulting in a low bias for the total mercury measurement. The use of a hydroxylamine hydrochloride and sodium hydroxide solution instead of stannous chloride showed a significant improvement in the measurement of total mercury. Bromine was shown to be much more effective in the post-flame, homogeneous oxidation of mercury than chlorine, on an equivalent molar basis. Addition of NO to the flame (up to 400 ppmv) had no impact on mercury oxidation by chlorine or bromine. Addition of SO{sub 2} had no effect on mercury oxidation by chlorine at SO{sub 2} concentrations below about 400 ppmv; some increase in mercury oxidation

  17. Heavy reflector experiments in the IPEN/MB-01 reactor: Stainless steel, carbon steel and nickel

    SciTech Connect (OSTI)

    Santos, Adimir dos; Andrade e Silva, Graciete Simoes de; Jerez, Rogerio; Liambos Mura, Luis Felipe; Fuga, Rinaldo

    2013-05-06

    New experiments devoted to the measurements of physical parameters of a light water core surrounded by a heavy reflector were performed in the IPEN/MB-01 research reactor facility. These experiments comprise three sets of heavy reflector (SS-304, Carbon Steel, and Nickel) in a form of laminates around 3 mm thick. Each set was introduced individually in the west face of the core of the IPEN/MB-01 reactor. The aim here is to provide high quality experimental data for the interpretation and validation of the SS-304 heavy reflector calculation methods. The experiments of Carbon Steel, which is composed mainly of iron, and Nickel were performed to provide a consistent and an interpretative check for the SS-304 reflector experiment. The experimental results comprise critical control bank positions, temperatures and reactivities as a function of the number of the plates. Particularly to the case of Nickel, the experimental data are unique of its kind. The theoretical analysis was performed by MCNP-5 with the nuclear data library ENDF/B-VII.0. It was shown that this nuclear data library has a very good performance up to thirteen plates and overestimates the reactivity for higher number of plates independently of the type of the reflector.

  18. Process for removing halogenated aliphatic and aromatic compounds from petroleum products

    DOE Patents [OSTI]

    Googin, J.M.; Napier, J.M.; Travaglini, M.A.

    1983-09-20

    A process is described for removing halogenated aliphatic and aromatic compounds, e.g., polychlorinated biphenyls, from petroleum products by solvent extraction. The halogenated aliphatic and aromatic compounds are extracted from a petroleum product into a polar solvent by contacting the petroleum product with the polar solvent. The polar solvent is characterized by a high solubility for the extracted halogenated aliphatic and aromatic compounds, a low solubility for the petroleum product and considerable solvent power for polyhydroxy compound. The preferred polar solvent is dimethylformamide. A miscible compound, such as, water or a polyhydroxy compound, is added to the polar extraction solvent to increase the polarity of the polar extraction solvent. The halogenated aliphatic and aromatic compounds are extracted from the highly-polarized mixture of water or polyhydroxy compound and polar extraction solvent into a low polar or nonpolar solvent by contacting the water or polyhydroxy compound-polar solvent mixture with the low polar or nonpolar solvent. The halogenated aliphatic and aromatic compounds and the low polar or nonpolar solvent are separated by physical means, e.g., vacuum evaporation. The polar and nonpolar solvents are recovered from recycling. The process can easily be designed for continuous operation. Advantages of the process include that the polar solvent and a major portion of the nonpolar solvent can be recycled, the petroleum products are reclaimable and the cost for disposing of waste containing polychlorinated biphenyls is significantly reduced. 1 fig.

  19. Process for removing halogenated aliphatic and aromatic compounds from petroleum products

    DOE Patents [OSTI]

    Googin, John M.; Napier, John M.; Travaglini, Michael A.

    1983-01-01

    A process for removing halogenated aliphatic and aromatic compounds, e.g., polychlorinated biphenyls, from petroleum products by solvent extraction. The halogenated aliphatic and aromatic compounds are extracted from a petroleum product into a polar solvent by contacting the petroleum product with the polar solvent. The polar solvent is characterized by a high solubility for the extracted halogenated aliphatic and aromatic compounds, a low solubility for the petroleum product and considerable solvent power for polyhydroxy compound. The preferred polar solvent is dimethylformamide. A miscible compound, such as, water or a polyhydroxy compound, is added to the polar extraction solvent to increase the polarity of the polar extraction solvent. The halogenated aliphatic and aromatic compounds are extracted from the highly-polarized mixture of water or polyhydroxy compound and polar extraction solvent into a low polar or nonpolar solvent by contacting the water or polyhydroxy compound-polar solvent mixture with the low polar or nonpolar solvent. The halogenated aliphatic and aromatic compounds and the low polar or nonpolar solvent are separated by physical means, e.g., vacuum evaporation. The polar and nonpolar solvents are recovered from recycling. The process can easily be designed for continuous operation. Advantages of the process include that the polar solvent and a major portion of the nonpolar solvent can be recycled, the petroleum products are reclaimable and the cost for disposing of waste containing polychlorinated biphenyls is significantly reduced.

  20. Long-range, full-duplex, modulated-reflector cell phone for voice/data transmission

    DOE Patents [OSTI]

    Neagley, Daniel L.; Briles, Scott D.; Coates, Don M.; Freund, Samuel M.

    2002-01-01

    A long-range communications apparatus utilizing modulated-reflector technology is described. The apparatus includes an energy-transmitting base station and remote units that do not emit radiation in order to communicate with the base station since modulated-reflector technology is used whereby information is attached to an RF carrier wave originating from the base station which is reflected by the remote unit back to the base station. Since the remote unit does not emit radiation, only a low-power power source is required for its operation. Information from the base station is transmitted to the remote unit using a transmitter and receiver, respectively. The range of such a communications system is determined by the properties of a modulated-reflector half-duplex link.

  1. Performance improvements of symmetry-breaking reflector structures in nonimaging devices

    DOE Patents [OSTI]

    Winston, Roland

    2004-01-13

    A structure and method for providing a broken symmetry reflector structure for a solar concentrator device. The component of the optical direction vector along the symmetry axis is conserved for all rays propagated through a translationally symmetric optical device. This quantity, referred to as the translational skew invariant, is conserved in rotationally symmetric optical systems. Performance limits for translationally symmetric nonimaging optical devices are derived from the distributions of the translational skew invariant for the optical source and for the target to which flux is to be transferred. A numerically optimized non-tracking solar concentrator utilizing symmetry-breaking reflector structures can overcome the performance limits associated with translational symmetry.

  2. Hybrid Back Surface Reflector GaInAsSb Thermophotovoltaic Devices

    SciTech Connect (OSTI)

    RK Huang; CA Wang; MK Connors; GW Turner; M Dashiell

    2004-05-11

    Back surface reflectors have the potential to improve thermophotovoltaic (TPV) device performance though the recirculation of infrared photons. The ''hybrid'' back-surface reflector (BSR) TPV cell approach allows one to construct BSRs for TPV devices using conventional, high efficiency, GaInAsSb-based TPV material. The design, fabrication, and measurements of hybrid BSR-TPV cells are described. The BSR was shown to provide a 4 mV improvement in open-circuit voltage under a constant shortcircuit current, which is comparable to the 5 mV improvement theoretically predicted. Larger improvements in open-circuit voltage are expected in the future with materials improvements.

  3. Wafer-Bonded Internal Back-Surface Reflectors for Enhanced TPV Performance

    SciTech Connect (OSTI)

    C.A. Wang; P.G. Murphy; P.W. O'Brien; D.A. Shiau; A.C. Anderson; Z.L. Liau; D.M. Depoy; G. Nichols

    2002-08-12

    This paper discusses recent efforts to realize GaInAsSb/GaSb TPV cells with an internal back-surface reflector (BSR). The cells are fabricated by wafer bonding the GaInAsSb/GaSb device layers to GaAs substrates with a dielectric/Au reflector, and subsequently removing the GaSb substrate. The internal BSR enhances optical absorption within the device while the dielectric layer provides electrical isolation. This approach is compatible with monolithic integration of series-connected TPV cells and can mitigate the requirements of filters used for front-surface spectral control.

  4. Nontypical iodine-halogen bonds in the crystal structure of (3 E

    Office of Scientific and Technical Information (OSTI)

    )-8-chloro-3-iodomethylidene-2,3-dihydro-1,4-oxazino[2,3,4- ij ]quinolin-4-ium triiodide (Journal Article) | SciTech Connect Nontypical iodine-halogen bonds in the crystal structure of (3 E )-8-chloro-3-iodomethylidene-2,3-dihydro-1,4-oxazino[2,3,4- ij ]quinolin-4-ium triiodide Citation Details In-Document Search Title: Nontypical iodine-halogen bonds in the crystal structure of (3 E )-8-chloro-3-iodomethylidene-2,3-dihydro-1,4-oxazino[2,3,4- ij ]quinolin-4-ium triiodide Two kinds of

  5. Space-Variant Post-Filtering for Wavefront Curvature Correction in Polar-Formatted Spotlight-Mode SAR Imagery

    SciTech Connect (OSTI)

    DOREN,NEALL E.

    1999-10-01

    Wavefront curvature defocus effects occur in spotlight-mode SAR imagery when reconstructed via the well-known polar-formatting algorithm (PFA) under certain imaging scenarios. These include imaging at close range, using a very low radar center frequency, utilizing high resolution, and/or imaging very large scenes. Wavefront curvature effects arise from the unrealistic assumption of strictly planar wavefronts illuminating the imaged scene. This dissertation presents a method for the correction of wavefront curvature defocus effects under these scenarios, concentrating on the generalized: squint-mode imaging scenario and its computational aspects. This correction is accomplished through an efficient one-dimensional, image domain filter applied as a post-processing step to PF.4. This post-filter, referred to as SVPF, is precalculated from a theoretical derivation of the wavefront curvature effect and varies as a function of scene location. Prior to SVPF, severe restrictions were placed on the imaged scene size in order to avoid defocus effects under these scenarios when using PFA. The SVPF algorithm eliminates the need for scene size restrictions when wavefront curvature effects are present, correcting for wavefront curvature in broadside as well as squinted collection modes while imposing little additional computational penalty for squinted images. This dissertation covers the theoretical development, implementation and analysis of the generalized, squint-mode SVPF algorithm (of which broadside-mode is a special case) and provides examples of its capabilities and limitations as well as offering guidelines for maximizing its computational efficiency. Tradeoffs between the PFA/SVPF combination and other spotlight-mode SAR image formation techniques are discussed with regard to computational burden, image quality, and imaging geometry constraints. It is demonstrated that other methods fail to exhibit a clear computational advantage over polar-formatting in conjunction

  6. Photovoltaic generator with a spherical imaging lens for use with a paraboloidal solar reflector

    DOE Patents [OSTI]

    Angel, Roger P

    2013-01-08

    The invention is a generator for photovoltaic conversion of concentrated sunlight into electricity. A generator according to the invention incorporates a plurality of photovoltaic cells and is intended for operation near the focus of a large paraboloidal reflector pointed at the sun. Within the generator, the entering concentrated light is relayed by secondary optics to the cells arranged in a compact, concave array. The light is delivered to the cells at high concentration, consistent with high photovoltaic conversion efficiency and low cell cost per unit power output. Light enters the generator, preferably first through a sealing window, and passes through a field lens, preferably in the form of a full sphere or ball lens centered on the paraboloid focus. This lens forms a concentric, concave and wide-angle image of the primary reflector, where the intensity of the concentrated light is stabilized against changes in the position of concentrated light entering the generator. Receiving the stabilized light are flat photovoltaic cells made in different shapes and sizes and configured in a concave array corresponding to the concave image of a given primary reflector. Photovoltaic cells in a generator are also sized and interconnected so as to provide a single electrical output that remains high and stable, despite aberrations in the light delivered to the generator caused by, for example, mispointing or bending of the primary reflector. In some embodiments, the cells are set back from the image formed by the ball lens, and part of the light is reflected onto each cell small secondary reflectors in the form of mirrors set around its perimeter.

  7. Electrophoretic deposited TiO2 pigment-based back reflectors for thin film solar cells

    SciTech Connect (OSTI)

    Bills, Braden; Morris, Nathan; Dubey, Mukul; Wang, Qi; Fan, Qi Hua

    2015-01-16

    Highly reflective coatings with strong light scattering effect have many applications in optical components and optoelectronic devices. This paper reports titanium dioxide (TiO2) pigment-based reflectors that have 2.5 times higher broadband diffuse reflection than commercially produced aluminum or silver based reflectors and result in efficiency enhancements of a single-junction amorphous Si solar cell. Electrophoretic deposition is used to produce pigment-based back reflectors with high pigment density, controllable film thickness and site-specific deposition. Electrical conductivity of the pigment-based back reflectors is improved by creating electrical vias throughout the pigment-based back reflector by making holes using an electrical discharge / dielectric breakdown approach followed by a second electrophoretic deposition of conductive nanoparticles into the holes. While previous studies have demonstrated the use of pigment-based back reflectors, for example white paint, on glass superstrate configured thin film Si solar cells, this work presents a scheme for producing pigment-based reflectors on complex shape and flexible substrates. Finally, mechanical durability and scalability are demonstrated on a continuous electrophoretic deposition roll-to-roll system which has flexible metal substrate capability of 4 inch wide and 300 feet long.

  8. Solar receiver heliostat reflector having a linear drive and position information system

    DOE Patents [OSTI]

    Horton, Richard H.

    1980-01-01

    A heliostat for a solar receiver system comprises an improved drive and control system for the heliostat reflector assembly. The heliostat reflector assembly is controllably driven in a predetermined way by a light-weight drive system so as to be angularly adjustable in both elevation and azimuth to track the sun and efficiently continuously reflect the sun's rays to a focal zone, i.e., heat receiver, which forms part of a solar energy utilization system, such as a solar energy fueled electrical power generation system. The improved drive system includes linear stepping motors which comprise low weight, low cost, electronic pulse driven components. One embodiment comprises linear stepping motors controlled by a programmed, electronic microprocessor. Another embodiment comprises a tape driven system controlled by a position control magnetic tape.

  9. Advanced ultraviolet-resistant silver mirrors for use in solar reflectors

    DOE Patents [OSTI]

    Jorgensen, Gary J.; Gee, Randy

    2009-11-03

    A silver mirror construction that maintains a high percentage of hemispherical reflectance throughout the UV and visible spectrum when used in solar reflectors, comprising:a) a pressure sensitive adhesive layer positioned beneath a silver overlay;b) a polymer film disposed on the silver overlay;c) an adhesive layer positioned on the polymer film; andd) a UV screening acrylic film disposed on the adhesive layer.

  10. Method of increments for the halogen molecular crystals: Cl, Br, and I

    SciTech Connect (OSTI)

    Steenbergen, Krista G.; Gaston, Nicola; Müller, Carsten; Paulus, Beate

    2014-09-28

    Method of increments (MI) calculations reveal the n-body correlation contributions to binding in solid chlorine, bromine, and iodine. Secondary binding contributions as well as d-correlation energies are estimated and compared between each solid halogen. We illustrate that binding is entirely determined by two-body correlation effects, which account for >80% of the total correlation energy. One-body, three-body, and exchange contributions are repulsive. Using density-fitting (DF) local coupled-cluster singles, doubles, and perturbative triples for incremental calculations, we obtain excellent agreement with the experimental cohesive energies. MI results from DF local second-order Møller-Plesset perturbation (LMP2) yield considerably over-bound cohesive energies. Comparative calculations with density functional theory and periodic LMP2 method are also shown to be less accurate for the solid halogens.

  11. Development and Testing of Abrasion Resistant Hard Coats For Polymer Film Reflectors: Preprint

    SciTech Connect (OSTI)

    Jorgensen, G.; Gee, R.; DiGrazia, M.

    2010-10-01

    Reflective polymer film technology can significantly reduce the cost of solar reflectors and installed Concentrated Solar Power (CSP) plants by both reduced material cost and lower weight. One challenge of polymer reflectors in the CSP environment pertains to contact cleaning methods typically used with glass mirrors. Such contact cleaning methods can scratch the surface of polymer reflectors and thereby reduce specular reflectance. ReflecTech, Inc. (a subsidiary of SkyFuel, Inc.) and the National Renewable Energy Laboratory (NREL) initiated a cooperative research and development agreement (CRADA) to devise and develop an abrasion resistant coating (ARC) suitable for deposition onto polymer based mirror film. A number of candidate ARC products were identified as candidate formulations. Industrial collaborators prepared samples having their ARCs deposited onto ReflecTech Mirror Film pre-laminated to aluminum sheet substrates. Samples were provided for evaluation and subjected to baseline (unweathered) and accelerated exposure conditions and subsequently characterized for abrasion resistance and adhesion. An advanced ARC product has been identified that exhibits outstanding initial abrasion resistance and adhesion to ReflecTech Mirror Film. These properties were also retained after exposure to the various accelerated stress conditions. This material has been successfully manufactured as a 1.5 m wide roll-to-roll construction in a production environment.

  12. Design of Semiconductor-Based Back Reflectors for High Voc Monolithic Multijunction Solar Cells: Preprint

    SciTech Connect (OSTI)

    Garcia, I.; Geisz, J.; Steiner, M.; Olson, J.; Friedman, D.; Kurtz, S.

    2012-06-01

    State-of-the-art multijunction cell designs have the potential for significant improvement before going to higher number of junctions. For example, the Voc can be substantially increased if the photon recycling taking place in the junctions is enhanced. This has already been demonstrated (by Alta Devices) for a GaAs single-junction cell. For this, the loss of re-emitted photons by absorption in the underlying layers or substrate must be minimized. Selective back surface reflectors are needed for this purpose. In this work, different architectures of semiconductor distributed Bragg reflectors (DBR) are assessed as the appropriate choice for application in monolithic multijunction solar cells. Since the photon re-emission in the photon recycling process is spatially isotropic, the effect of the incident angle on the reflectance spectrum is of central importance. In addition, the DBR structure must be designed taking into account its integration into the monolithic multijunction solar cells, concerning series resistance, growth economics, and other issues. We analyze the tradeoffs in DBR design complexity with all these requirements to determine if such a reflector is suitable to improve multijunction solar cells.

  13. Method of manufacturing large dish reflectors for a solar concentrator apparatus

    DOE Patents [OSTI]

    Angel, Roger P; Olbert, Blain H

    2011-12-27

    A method of manufacturing monolithic glass reflectors for concentrating sunlight in a solar energy system is disclosed. The method of manufacturing allows large monolithic glass reflectors to be made from float glass in order to realize significant cost savings on the total system cost for a solar energy system. The method of manufacture includes steps of heating a sheet of float glass positioned over a concave mold until the sheet of glass sags and stretches to conform to the shape of the mold. The edges of the dish-shaped glass are rolled for structural stiffening around the periphery. The dish-shaped glass is then silvered to create a dish-shaped mirror that reflects solar radiation to a focus. The surface of the mold that contacts the float glass preferably has a grooved surface profile comprising a plurality of cusps and concave valleys. This grooved profile minimizes the contact area and marring of the specular glass surface, reduces parasitic heat transfer into the mold and increases mold lifetime. The disclosed method of manufacture is capable of high production rates sufficiently fast to accommodate the output of a conventional float glass production line so that monolithic glass reflectors can be produced as quickly as a float glass production can make sheets of float glass to be used in the process.

  14. Multijunction GaInP/GaInAs/Ge solar cells with Bragg reflectors

    SciTech Connect (OSTI)

    Emelyanov, V. M. Kalyuzhniy, N. A.; Mintairov, S. A.; Shvarts, M. Z.; Lantratov, V. M.

    2010-12-15

    Effect of subcell parameters on the efficiency of GaInP/Ga(In)As/Ge tandem solar cells irradiated with 1-MeV electrons at fluences of up to 3 x 10{sup 15} cm{sup -2} has been theoretically studied. The optimal thicknesses of GaInP and GaInAs subcells, which provide the best photocurrent matching at various irradiation doses in solar cells with and without built-in Bragg reflectors, were determined. The dependences of the photoconverter efficiency on the fluence of 1-MeV electrons and on the time of residence in the geostationary orbit were calculated for structures optimized to the beginning and end of their service lives. It is shown that the optimization of the subcell heterostructures for a rated irradiation dose and the introduction of Bragg reflectors into the structure provide a 5% overall increase in efficiency for solar cells operating in the orbit compared with unoptimized cells having no Bragg reflector.

  15. Chemical Effect of Dry and Wet Cleaning of the Ru Protective Layer of the Extreme ultraviolet (EUV) Lithography Reflector

    SciTech Connect (OSTI)

    Belau, Leonid; Park, Jeong Y.; Liang, Ted; Seo, Hyungtak; Somorjai, Gabor A.

    2009-04-10

    The authors report the chemical influence of cleaning of the Ru capping layer on the extreme ultraviolet (EUV) reflector surface. The cleaning of EUV reflector to remove the contamination particles has two requirements: to prevent corrosion and etching of the reflector surface and to maintain the reflectivity functionality of the reflector after the corrosive cleaning processes. Two main approaches for EUV reflector cleaning, wet chemical treatments [sulfuric acid and hydrogen peroxide mixture (SPM), ozonated water, and ozonated hydrogen peroxide] and dry cleaning (oxygen plasma and UV/ozone treatment), were tested. The changes in surface morphology and roughness were characterized using scanning electron microscopy and atomic force microscopy, while the surface etching and change of oxidation states were probed with x-ray photoelectron spectroscopy. Significant surface oxidation of the Ru capping layer was observed after oxygen plasma and UV/ozone treatment, while the oxidation is unnoticeable after SPM treatment. Based on these surface studies, the authors found that SPM treatment exhibits the minimal corrosive interactions with Ru capping layer. They address the molecular mechanism of corrosive gas and liquid-phase chemical interaction with the surface of Ru capping layer on the EUV reflector.

  16. 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.

  17. Midtemperature Solar Systems Test Facility predictions for thermal performance of the Suntec solar collector with heat-formed glass reflector surface

    SciTech Connect (OSTI)

    Harrison, T.D.

    1980-11-01

    Thermal performance predictions are presented for the Suntec solar collector, with heat-formed glass reflector surface, for three output temperatures at five cities in the United States.

  18. DOE Publishes Final Rule for the Request for Exclusion of 100 Watt R20 Short Incandescent Reflector Lamps from Energy Conservation Standards

    Broader source: Energy.gov [DOE]

    The Department of Energy has published a final rule regarding the request for exclusion of 100 Watt R20 short incandescent reflector lamps from energy conservation standards.

  19. Process for removing halogenated aliphatic and aromatic compounds from petroleum products. [Polychlorinated biphenyls; methylene chloride; perchloroethylene; trichlorofluoroethane; trichloroethylene; chlorobenzene

    DOE Patents [OSTI]

    Googin, J.M.; Napier, J.M.; Travaglini, M.A.

    1982-03-31

    A process for removing halogenated aliphatic and aromatic compounds, e.g., polychlorinated biphenyls, from petroleum products by solvent extraction. The halogenated aliphatic and aromatic compounds are extracted from a petroleum product into a polar solvent by contracting the petroleum product with the polar solvent. The polar solvent is characterized by a high solubility for the extracted halogenated aliphatic and aromatic compounds, a low solubility for the petroleum product and considerable solvent power for polyhydroxy compound. The preferred polar solvent is dimethylformamide. A miscible polyhydroxy compound, such as, water, is added to the polar extraction solvent to increase the polarity of the polar extraction solvent. The halogenated aliphatic and aromatic compounds are extracted from the highly-polarized mixture of polyhydroxy compound and polar extraction solvent into a low polar or nonpolar solvent by contacting the polyhydroxy compound-polar solvent mixture with the low polar or nonpolar solvent. The halogenated aliphatic and aromatic compounds in the low polar or nonpolar solvent by physical means, e.g., vacuum evaporation. The polar and nonpolar solvents are recovered for recycling. The process can easily be designed for continuous operation. Advantages of the process include that the polar solvent and a major portion of the nonpolar solvent can be recycled, the petroleum products are reclaimable and the cost for disposing of waste containing polychlorinated biphenyls is significantly reduced. 2 tables.

  20. Lamp system with conditioned water coolant and diffuse reflector of polytetrafluorethylene(PTFE)

    DOE Patents [OSTI]

    Zapata, Luis E.; Hackel, Lloyd

    1999-01-01

    A lamp system with a very soft high-intensity output is provided over a large area by water cooling a long-arc lamp inside a diffuse reflector of polytetrafluorethylene (PTFE) and titanium dioxide (TiO.sub.2) white pigment. The water is kept clean and pure by a one micron particulate filter and an activated charcoal/ultraviolet irradiation system that circulates and de-ionizes and biologically sterilizes the coolant water at all times, even when the long-arc lamp is off.

  1. 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.

  2. Remote examination of Fort St. Vrain HTGR fuel and reflector elements

    SciTech Connect (OSTI)

    McCord, F.; Saurwein, J.J.

    1984-01-01

    A robotic device developed at GA Technologies was used to perform remote metrological and visual examinations on 105 irradiated fuel and reflector elements removed from the High Temperature Gas Cooled Reactor (HTGR) core of the Fort St. Vrain (FSV) Nuclear Generating Station. All examinations were accomplished in a fraction of the time and at a fraction of the cost for manual methods. Theses examinations have been useful in the verification of core design codes, in monitoring the in-pile performance of graphite blocks, and in qualifying improved core materials.

  3. High efficiency epitaxial optical reflector solar cells. Final subcontract report, 1 January 1990--31 October 1992

    SciTech Connect (OSTI)

    Dapkus, P.D.; Hummel, S.G.

    1993-08-01

    This report describes work to test the feasibility of a new solar cell concept -- the epitaxial optical reflector (EOR) solar cell. This cell concept alters current designs for high efficiency cells by changing the optical absorption efficiency of single cells. The change is introduced by the use an epitaxial multilayer reflector as an integral part of the cell to increase the optical path length of certain wavelengths of light in the cell. These changes are expected to increase the open circuit voltage at which power is extracted from the cell. The program is designed to test the feasibility of the use of a broad band epitaxial multilayer reflector grown as an integral part of the device structure to reflect the near-band-edge light back through the device for a second absorption pass. This second pass allows the design of a solar cell with a thinner base, and the use of the epitaxial reflector as a heterojunction carrier-reflecting barrier at the rear of the device. The thinner cell design and altered carrier profile that results from the light- and carrier-reflecting barrier will decrease the carrier concentration gradient and increase the open circuit voltage. The program is structured to have three tasks: (1) Solar Cell and Reflector Modeling, (2) Materials Growth and Optimization, and (3) Solar Cell Fabrication and Characterization.

  4. Presentation of the MERC work-flow for the computation of a 2D radial reflector in a PWR

    SciTech Connect (OSTI)

    Clerc, T.; Hebert, A.; Leroyer, H.; Argaud, J. P.; Poncot, A.; Bouriquet, B.

    2013-07-01

    This paper presents a work-flow for computing an equivalent 2D radial reflector in a pressurized water reactor (PWR) core, in adequacy with a reference power distribution, computed with the method of characteristics (MOC) of the lattice code APOLLO2. The Multi-modelling Equivalent Reflector Computation (MERC) work-flow is a coherent association of the lattice code APOLLO2 and the core code COCAGNE, structured around the ADAO (Assimilation de Donnees et Aide a l'Optimisation) module of the SALOME platform, based on the data assimilation theory. This study leads to the computation of equivalent few-groups reflectors, that can be spatially heterogeneous, which have been compared to those obtained with the OPTEX similar methodology developed with the core code DONJON, as a first validation step. Subsequently, the MERC work-flow is used to compute the most accurate reflector in consistency with all the R and D choices made at Electricite de France (EDF) for the core modelling, in terms of number of energy groups and simplified transport solvers. We observe important reductions of the power discrepancies distribution over the core when using equivalent reflectors obtained with the MERC work-flow. (authors)

  5. See-through amorphous silicon solar cells with selectively transparent and conducting photonic crystal back reflectors for building integrated photovoltaics

    SciTech Connect (OSTI)

    Yang, Yang; OBrien, Paul G.; Materials Chemistry Research Group, Department of Chemistry, University of Toronto, 80 St. George Street, Toronto, Ontario M5S 3H6 ; Ozin, Geoffrey A. E-mail: kherani@ecf.utoronto.ca; Kherani, Nazir P. E-mail: kherani@ecf.utoronto.ca

    2013-11-25

    Thin semi-transparent hydrogenated amorphous silicon (a-Si:H) solar cells with selectively transparent and conducting photonic crystal (STCPC) back-reflectors are demonstrated. Short circuit current density of a 135?nm thick a-Si:H cell with a given STCPC back-reflector is enhanced by as much as 23% in comparison to a reference cell with an ITO film functioning as its rear contact. Concurrently, solar irradiance of 295?W/m{sup 2} and illuminance of 3480 lux are transmitted through the cell with a given STCPC back reflector under AM1.5 Global tilt illumination, indicating its utility as a source of space heating and lighting, respectively, in building integrated photovoltaic applications.

  6. Application of ITO/Al reflectors for increasing the efficiency of single-crystal silicon solar cells

    SciTech Connect (OSTI)

    Kopach, V. R.; Kirichenko, M. V. Khrypunov, G. S.; Zaitsev, R. V.

    2010-06-15

    It is shown that an increase in the efficiency and manufacturability of single-junction single-crystal silicon photoelectric converters of solar energy requires the use of a back-surface reflector based on conductive transparent indium-tin oxide (ITO) 0.25-2 {mu}m thick. To increase the efficiency and reduce the sensitivity to the angle of light incidence on the photoreceiving surface of multijunction photoelectric converters with vertical diode cells based on single-crystal silicon, ITO/Al reflectors with an ITO layer >1 {mu}m thick along vertical boundaries of diode cells should be fabricated. The experimental study of multijunction photoelectric converters with ITO/Al reflectors at diode cell boundaries shows the necessity of modernizing the used technology of ITO layers to achieve their theoretically calculated thickness.

  7. MHD compressor---expander conversion system integrated with GCR inside a deployable reflector

    SciTech Connect (OSTI)

    Tuninetti, G. . Research Div.); Botta, E.; Criscuolo, C.; Riscossa, P. . Nuclear Div.); Giammanco, F. . Dipt. di Fisica); Rosa-Clot, M. . Dipt. di Fisica)

    1989-04-20

    This work originates from the proposal MHD Compressor-Expander Conversion System Integrated with a GCR Inside a Deployable Reflector''. The proposal concerned an innovative concept of nuclear, closed-cycle MHD converter for power generation on space-based systems in the multi-megawatt range. The basic element of this converter is the Power Conversion Unit (PCU) consisting of a gas core reactor directly coupled to an MHD expansion channel. Integrated with the PCU, a deployable reflector provides reactivity control. The working fluid could be either uranium hexafluoride or a mixture of uranium hexafluoride and helium, added to enhance the heat transfer properties. The original Statement of Work, which concerned the whole conversion system, was subsequently redirected and focused on the basic mechanisms of neutronics, reactivity control, ionization and electrical conductivity in the PCU. Furthermore, the study was required to be inherently generic such that the study was required to be inherently generic such that the analysis an results can be applied to various nuclear reactor and/or MHD channel designs''.

  8. Analyses of the reflector tank, cold source, and beam tube cooling for ANS reactor

    SciTech Connect (OSTI)

    Marland, S.

    1992-07-01

    This report describes my work as an intern with Martin Marietta Energy Systems, Inc., in the summer of 1991. I was assigned to the Reactor Technology Engineering Department, working on the Advanced Neutron Source (ANS). My first project was to select and analyze sealing systems for the top of the diverter/reflector tank. This involved investigating various metal seals and calculating the forces necessary to maintain an adequate seal. The force calculations led to an analysis of several bolt patterns and lockring concepts that could be used to maintain a seal on the vessel. Another project involved some pressure vessel stress calculations and the calculation of the center of gravity for the cold source assembly. I also completed some sketches of possible cooling channel patterns for the inner vessel of the cold source. In addition, I worked on some thermal design analyses for the reflector tank and beam tubes, including heat transfer calculations and assisting in Patran and Pthermal analyses. To supplement the ANS work, I worked on other projects. I completed some stress/deflection analyses on several different beams. These analyses were done with the aid of CAASE, a beam-analysis software package. An additional project involved bending analysis on a carbon removal system. This study was done to find the deflection of a complex-shaped beam when loaded with a full waste can.

  9. Process for the solvent extraction for the radiolysis and dehalogenation of halogenated organic compounds in soils, sludges, sediments and slurries

    DOE Patents [OSTI]

    Mincher, Bruce J.; Curry, Randy Dale; Clevenger, Thomas E.; Golden, Jeffry

    2000-01-01

    A process of extracting halogenated organic compounds, and particularly PCBs, from soil, sediment, slurry, sludge and dehalogenating the compounds contacting a contaminated soil sample with an extraction medium of a mixture of an alkane and a water miscible alcohol. The organic compounds dissolve in the extraction medium which is separated from the soil by passing water upwardly through the soil. The extraction medium floats to the surface of the water and is separated. Thereafter, the extraction medium containing the halogenated organic contaminants is subjected to ionizing radiation to radiolytically dehalogenate the compounds.

  10. Process for the solvent extraction for the radiolysis and dehalogenation of halogenated organic compounds in soils, sludges, sediments and slurries

    DOE Patents [OSTI]

    Mincher, Bruce J.; Curry, Randy Dale; Clevenger, Thomas E.; Golden, Jeffry

    2003-05-27

    A process of extracting halogenated organic compounds, and particularly PCBs, from soil, sediment, slurry, sludge and dehalogenating the compounds contacts a contaminated soil sample with an extraction medium of a mixture of an alkane and a water miscible alcohol. The organic compounds dissolve in the extraction medium which is separated from the soil by passing water upwardly through the soil. The extraction medium floats to the surface of the water and is separated. Thereafter, the extraction medium containing the halogenated organic contaminants is subjected to ionizing radiation to radiolytically dehalogenate the compounds.

  11. Process for the solvent extraction for the radiolysis and dehalogenation of halogenated organic compounds in soils, sludges, sediments and slurries

    DOE Patents [OSTI]

    Golden, Jeffry

    2007-02-13

    A process of extracting halogenated organic compounds, and particularly PCBs, from soil, sediment, slurry, sludge and dehalogenating the compounds contacts a contaminated soil sample with an extraction medium of a mixture of an alkane and a water miscible alcohol. The organic compounds dissolve in the extraction medium which is separated from the soil by passing water upwardly through the soil. The extraction medium floats to the surface of the water and is separated. Thereafter, the extraction medium containing the halogenated organic contaminants is subjected to ionizing radiation to radiolytically dehalogenate the compounds.

  12. Optical and Durability Evaluation for Silvered Polymeric Mirrors and Reflectors: Cooperative Research and Development Final Report, CRADA Number, CRD-08-316

    SciTech Connect (OSTI)

    Gray, M.

    2014-08-01

    3M is currently developing silvered polymeric mirror reflectors as low-cost replacements for glass mirrors in concentrating solar power (CSP) systems. This effort is focused on development of reflectors comprising both metallized polymeric mirror films based on improved versions of ECP-305+ or other durable mirror film concepts and appropriate mechanically robust substrates. The objectives for this project are to reduce the system capital and operating costs and to lower the levelized cost of energy for CSP installations. The development of mirror reflectors involves work on both full reflectors and mirror films with and without coatings. Mirror reflectors must meet rigid optical specifications in terms of radius of curvature, slope errors and specularity. Mirror films must demonstrate long-term durability and maintain high reflectivity. 3M would like to augment internal capabilities to validate product performance with methods and tools developed at NREL to address these areas.

  13. New Method to Characterize Degradation of First Surface Aluminum Reflectors: Preprint

    SciTech Connect (OSTI)

    Sutter, F.; Heller, P.; Meyen, S.; Pitz-Paal, R.; Kennedy, C.; Fernandez-Garcia, A.; Schmucker, M.

    2010-10-01

    This paper reports the development of a new optical instrument capable of characterizing the aging process of enhanced first surface aluminum reflectors for concentrating solar power (CSP) application. Samples were exposed outdoors at different sites and in accelerated exposure tests. All samples exposed outdoors showed localized corrosion spots. Degradation originated from points of damage in the protective coating, but propagated underneath the protective coating. The degraded samples were analyzed with a microscope and with a newly designed space-resolved specular reflectometer (SR)2 that is capable of optically detecting and characterizing the corrosion spots. The device measures the specular reflectance at three acceptance angles and the wavelengths with spatial resolution using a digital camera's CMOS sensor. It can be used to measure the corrosion growth rate during outdoor and accelerated exposure tests. These results will allow a correlation between the degraded mirror surface and its specular reflectance.

  14. Deep ultraviolet distributed Bragg reflectors based on graded composition AlGaN alloys

    SciTech Connect (OSTI)

    Brummer, Gordie; Nothern, Denis; Nikiforov, A. Yu.; Moustakas, T. D.

    2015-06-01

    Distributed Bragg reflectors (DBRs) with peak reflectivity at approximately 280 nm, based on compositionally graded Al{sub x}Ga{sub 1−x}N alloys, were grown on 6H-SiC substrates by plasma-assisted molecular beam epitaxy. DBRs with square, sinusoidal, triangular, and sawtooth composition profiles were designed with the transfer matrix method. The crystal structure of these DBRs was studied with high-resolution x-ray diffraction of the (1{sup ¯}015) reciprocal lattice point. The periodicity of the DBR profiles was confirmed with cross-sectional Z-contrast scanning transmission electron microscopy. The peak reflectance of these DBRs with 15.5 periods varies from 77% to 56% with corresponding full width at half maximum of 17–14 nm. Coupled mode analysis was used to explain the dependence of the reflectivity characteristics on the profile of the graded composition.

  15. Nondestructive examination of 51 fuel and reflector elements from Fort St. Vrain Core Segment 1

    SciTech Connect (OSTI)

    Miller, C.M.; Saurwein, J.J.

    1980-12-01

    Fifty-one fuel and reflector elements irradiated in core segment 1 of the Fort St. Vrain High-Temperature Gas-Cooled Reactor (HTGR) were inspected dimensionally and visually in the Hot Service Facility at Fort St. Vrain in July 1979. Time- and volume-averaged graphite temperatures for the examined fuel elements ranged from approx. 400/sup 0/ to 750/sup 0/C. Fast neutron fluences varied from approx. 0.3 x 10/sup 25/ n/m/sup 2/ to 1.0 x 10/sup 25/ n/m/sup 2/ (E > 29 fJ)/sub HTGR/. Nearly all of the examined elements shrank in both axial and radial dimensions. The measured data were compared with strain and bow predictions obtained from SURVEY/STRESS, a computer code that employs viscoelastic beam theory to calculate stresses and deformations in HTGR fuel elements.

  16. Nondestructive examination of 54 fuel and reflector elements from Fort St. Vrain core segment 2

    SciTech Connect (OSTI)

    Saurwein, J.J.

    1982-10-01

    Fifty-four fuel and reflector elements irradiated in core segment 2 of the Fort St. Vrain high-temperature gas-cooled reactor (HTGR) were nondestructively examined. The time- and volume-averaged graphite irradiation temperatures for the elements ranged from approx. 350/sup 0/ to 750/sup 0/C. The element-averaged fast neutron fluences ranged from approx. 0.2 to 1.6 x 10/sup 25/ n/m/sup 2/ (E > 29 fJ)/sub HTGR/. The elements, except for two fuel elements in which single localizeed cracks developed during irradiation, were in excellent condition. No evidence was observed of significant graphite oxidation or mechanical interaction beween elements. The cracks in the two elements did not affect their performance or handling. These elements were, otherwise, in excellent condition. Nearly all elements shrank in both the axial and radial directions, but the dimensional changes were relatively small.

  17. Reactivity Accountability Attributed to Reflector Poisons in the High Flux Isotope Reactor

    SciTech Connect (OSTI)

    Chandler, David; Maldonado, G Ivan; Primm, Trent

    2009-12-01

    The objective of this study is to develop a methodology to predict the reactivity impact as a function of outage time between cycles of 3He, 6Li, and other poisons in the High Flux Isotope Reactor s (HFIR) beryllium reflector. The reactivity worth at startup of the HFIR has been incorrectly predicted in the past after the reactor has been shut-down for long periods of time. The incorrect prediction was postulated to be due to the erroneous calculation of 3He buildup in the beryllium reflector. It is necessary to develop a better estimate of the start-of-cycle symmetric critical control element positions since if the estimated and actual symmetrical critical control element positions differ by more than $1.55 in reactivity (approximately one-half inch in control element startup position), HFIR is to be shutdown and a technical evaluation is performed to resolve the discrepancy prior to restart. 3He is generated and depleted during operation, but during an outage, the depletion of 3He ceases because it is a stable isotope. 3He is born from the radioactive decay of tritium, and thus the concentration of 3He increases during shutdown. SCALE, specifically the TRITON and CSAS5 control modules including the KENO V.A, COUPLE, and ORIGEN functional modules were utilized in this study. An equation relating the down time (td) to the change in symmetric control element position was generated and validated against measurements for approximately 40 HFIR operating cycles. The newly-derived correlation was shown to improve accuracy of predictions for long periods of down time.

  18. In situ thermally enhanced biodegradation of petroleum fuel hydrocarbons and halogenated organic solvents

    DOE Patents [OSTI]

    Taylor, R.T.; Jackson, K.J.; Duba, A.G.; Chen, C.I.

    1998-05-19

    An in situ thermally enhanced microbial remediation strategy and a method for the biodegradation of toxic petroleum fuel hydrocarbon and halogenated organic solvent contaminants are described. The method utilizes nonpathogenic, thermophilic bacteria for the thermal biodegradation of toxic and carcinogenic contaminants, such as benzene, toluene, ethylbenzene and xylenes, from fuel leaks and the chlorinated ethenes, such as trichloroethylene, chlorinated ethanes, such as 1,1,1-trichloroethane, and chlorinated methanes, such as chloroform, from past solvent cleaning practices. The method relies on and takes advantage of the pre-existing heated conditions and the array of delivery/recovery wells that are created and in place following primary subsurface contaminant volatilization efforts via thermal approaches, such as dynamic underground steam-electrical heating. 21 figs.

  19. In situ thermally enhanced biodegradation of petroleum fuel hydrocarbons and halogenated organic solvents

    DOE Patents [OSTI]

    Taylor, Robert T.; Jackson, Kenneth J.; Duba, Alfred G.; Chen, Ching-I

    1998-01-01

    An in situ thermally enhanced microbial remediation strategy and a method for the biodegradation of toxic petroleum fuel hydrocarbon and halogenated organic solvent contaminants. The method utilizes nonpathogenic, thermophilic bacteria for the thermal biodegradation of toxic and carcinogenic contaminants, such as benzene, toluene, ethylbenzene and xylenes, from fuel leaks and the chlorinated ethenes, such as trichloroethylene, chlorinated ethanes, such as 1,1,1-trichloroethane, and chlorinated methanes, such as chloroform, from past solvent cleaning practices. The method relies on and takes advantage of the pre-existing heated conditions and the array of delivery/recovery wells that are created and in place following primary subsurface contaminant volatilization efforts via thermal approaches, such as dynamic underground steam-electrical heating.

  20. Scientists in the Spotlight

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

    development specialist and Nicole Lloyd-Ronning, an astrophysicist, both at Los Alamos National Laboratory will talk to people about computers and the electromagnetic spectrum....

  1. Employee Spotlight: Alessandro Cattaneo

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

    Alessandro Cattaneo Alessandro Cattaneo-One thing leads to another The first time the Laboratory's post-doctoral mechanical engineer Alessandro Cattaneo arrived in the United States from his native Italy, he was a regular tourist taking a road trip through the American West with three Italian friends. April 12, 2015 Alessandro Cattaneo Cattaneo and companions in Millennium Park, Chicago. "Los Alamos' Engineering Institute is considered one of the structural health monitoring leaders in the

  2. Employee Spotlight: Brad Lounsbury

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

    Brad Lounsbury Brad Lounsbury-Working on the railroad "A labor of love" is how James "Brad" Lounsbury describes restoring cars on the Cumbres & Toltec Scenic Railroad. June 28, 2016 Brad Lounsbury Brad Lounsbury Brad Lounsbury Brad Lounsbury Brad Lounsbury Brad Lounsbury "You come to work, but you leave as family." lounsbury Brad will be playing Santa on Christmas trains in December 2016. James "Brad" Lounsbury, an explosives safety officer in the

  3. Employee Spotlight: Bryant Roybal

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

    Bryant Roybal Bryant Roybal-Champion chile The Associate Directorate for Project Management's Bryant Roybal has been a chile competition contestant ever since entering the Hot Chili Days, Cool Mountain Nights Cookoff in Red River in 2011 and immediately taking first prize. February 18, 2015 Bryant Roybal Bryant Roybal's award-winning chile stew recipe features different types of chile in what he calls his Harvest Blend. "It's been a fun few years, and winning the inaugural state-wide Green

  4. Employee Spotlight: Dave Keller

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

    Dave Keller Dave Keller-Sleepless in Los Alamos From the end of March into early May, Keller and the Laboratory's other wildlife biologists monitor the Mexican Spotted Owl's population size and locations and record noteworthy changes. June 2, 2014 Dave Keller Dave Keller works for the Environmental Protection Division's Environmental Stewardship group. It's 2 o'clock in the morning and pitch black. While most Laboratory employees are getting a good night's sleep, wildlife biologist Dave Keller

  5. Employee Spotlight: Gene Ortega

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

    Gene Ortega Gene Ortega-The eyes have it Painting with a style that mixes chaos and refinement, Gene Ortega has found a way to blend his technical and artistic sides. May 4, 2016 gene ortega gene ortega gene ortega gene ortega "I focus on the eyes because they give the painting a soul." The eyes have it gene ortega Gene Ortega paints portraits rich in color and symbolism. "My style is chaotic with a bit of refinement," says Gene, a systems engineer in Facility System

  6. Employee Spotlight: Jonathan Engle

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

    Jon Engle Jonathan Engle-Saving lives with nuclear energy Jonathan (Jon) Engle, Reines Distinguished Postdoctoral Fellow at the Laboratory, is helping lay the scientific groundwork for a new and improved cancer treatment that uses the energy produced by radioactive isotopes. August 14, 2014 Jon Engle Jonathan (Jon) Engle, Reines Distinguished Postdoctoral Fellow at the Laboratory Los Alamos has been making radioisotopes since the 1970s and today is a global leader in the production of

  7. Employee Spotlight: Kristen Honig

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

    Kristen Honig Kristen Honig-The evolution of a wildfire photographer Honig realized that she wanted to document the beauty and destructiveness of wildfires and the sacrifices, challenges and camaraderie of the men and women protecting communities in the path of scorching blazes. June 24, 2014 Helicopter releasing red fire retardant A helicopter drops fire retardant on wildfire during 2011 Las Conchas fire in New Mexico. ...the crews think of me as 'press,' someone who is going to take a few

  8. Employee Spotlight: Melissa Montoya

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

    Melissa Montoya Melissa Montoya-Helping students reach for the future Melissa Montoya mixes adobe bricks and high-tech fun to show kids the joys of math and science July 26, 2016 Melissa Montoya Melissa Montoya Melissa Montoya "It's wonderful to see the kids' happiness when they get the job done." Helping students reach for the future Melissa Montoya of the Policy Office (ADMASER-IS) is devoted to raising a bright 11-year-old son whose passions include both basketball and math, but her

  9. Employee Spotlight: Michael Torrez

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

    Michael Torrez Michael Torrez-Tracing family lineages to colonial New Mexico Michael Torrez, by day a research technologist in the Laboratory's Materials Physics and Applications Division, spends much of his free time researching New Mexico's family histories. August 26, 2014 Michael Torrez Michael Torrez in front of a family tree he is researching. "Tracing one's family history is quite tricky. ...But nowadays we have much greater access to genealogical information than ever before, and

  10. Employee Spotlight: Monika Bittman

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

    Monika Bittman Monika Bittman-The vitality of artistic creation Monika Bittman has wanted to be an artist ever since she was a little girl in Prague, Czechoslovakia, now the Czech Republic. Today Bittman applies her creative eye and attention to detail in her work as a web designer at the Laboratory. June 2, 2014 Monika Bittman Monika Bittman, web designer/developer "By working with thin paint on small panels, moving them around and manipulating them, I allow the properties and dynamics of

  11. Employee Spotlight: Ron Barber

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

    Ron Barber Ron Barber-The hobby that got out of hand Ron Barber, a mechanical engineer in the Laboratory's Accelerator Operations and Technology Division, combines his love of nature and open spaces with a personal interest in researching the astronomical knowledge of long-ago civilizations that once inhabited the American Southwest. September 9, 2014 Ron Barber The ancient stone calendars Ron Barber and his friends have located during their weekend treks mark summer and winter solstices,

  12. Spotlight: Jenna Casias

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

    Working with organizations to bring together other women at the Lab in construction, ... Supporting women in project management, construction careers When Jenna Casias started ...

  13. Scientist in the Spotlight

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

    live in regional fresh water supplies. You'll also have an opportunity to talk to Jane about her interest in microbiology and see cool stuff normally invisible to the human eye...

  14. Scientists in the Spotlight

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

    talking to visitors about their favorite STEM (Science, Technology, Engineering and Math) topics. Featured in December: Teri Roberts and Isaac Salazar Stop by the Bradbury on...

  15. Employee Spotlight: Jeff Martin

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

    twice as high as the previous day-crotch-deep instead of knee-deep, with plenty of chest-deep sections, or deeper yet, interspersed with rapids. In addition, the river looks...

  16. Spotlight: Claudia Mora

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

    is a stable-isotope geochemist whose research spans the traditional fields of geology, soil science and climate science. At Los Alamos, she heads the Earth and Environmental...

  17. DOE Sustainability SPOtlight

    Office of Energy Efficiency and Renewable Energy (EERE)

    Newsletter highlights the recipients of the U.S. Department of Energy (DOE) Sustainability Performance Office (SPO) 2014 Sustainability Awards.

  18. Employee Spotlight: Alessandro Cattaneo

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

    Department of Energy Job Task Analysis (EJTA) PIA, Richland Operations Office Employee Job Task Analysis (EJTA) PIA, Richland Operations Office Employee Job Task Analysis (EJTA) PIA, Richland Operations Office Employee Job Task Analysis (EJTA) PIA, Richland Operations Office (58.17 KB) More Documents & Publications Occupational Medicine - Assistant PIA, Idaho National Laboratory Occupational Injury & Illness System (01&15) PIA, Idaho National Laboratory PIA - GovTrip (DOE data)

  19. Employee Spotlight: Amy Spears

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

    Amy Spears Amy Spears-Inspired by the "dark place" Amy proved how tough she is on the CMT channel's grueling Broken Skull Challenge. But in everyday life, she's driven to help those around her achieve their fitness goals. spears spears spears spears spears spears 12 3 4 "I'm a mother, but I am also still Amy. I have big goals and dreams and it is so important for me to work towards those while I am raising my kids and, in turn, I think I am a better mom for it." Inspired by

  20. Employee Spotlight: Billy Turney

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

    Billy Turney Billy Turney-Devotion to song For the last 40-plus years, Billy Turney has been performing live music in churches, pubs, farmers markets, and a dozen other places from Santa Fe to Rome to Dublin. turney turney turney turney turney turney turney 12 3 4 5 6 7 "To understand how Billy Turney came to embrace both sacred music and Irish folk songs, you have to consider two ends of the keyboard continuum: the biggest of all, the pipe organ, and the most portable, the accordion."

  1. Employee Spotlight: Brad Lounsbury

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

    Brad Lounsbury June 28, 2016 Brad will be playing Santa on Christmas trains in December 2016. James "Brad" Lounsbury, an explosives safety officer in the Industrial Safety and Hygiene group, is very specific about the time he spends working on the steam- powered, narrow-gauge Cumbres & Toltec Scenic Railroad. "It's not a hobby," he says. "It's a passion, a labor of love." The passion hit him four years ago when he took his small RV to Chama's Rio Chama RV Park.

  2. Employee Spotlight: Bryant Roybal

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

    Bryant Roybal February 18, 2015 Champion chile New Mexico's first green chile stew champion, Bryant Roybal, is proud to add first prize at the First Annual Great Bowls of Fire Chili Cookoff on February 14, 2015, to his growing list of awards for his chile recipes. Roybal, who works for the Laboratory's Associate Directorate for Project Management, has been a chile competition contestant ever since entering the Hot Chili Days, Cool Mountain Nights Cookoff in Red River in 2011 and immediately

  3. Employee Spotlight: Dave Keller

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

    Dave Keller June 2, 2014 It's 2 o'clock in the morning and pitch black. While most Laboratory employees are getting a good night's sleep, wildlife biologist Dave Keller and a colleague are up and about, stopping by the Environmental Protection Division's office in White Rock to pick up a four-wheel-drive government vehicle and head out to look for Mexican Spotted Owls, a federally listed threatened species living on Laboratory property. By the time Keller and his travel partner reach the first

  4. Employee Spotlight: Gene Ortega

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    Gene Ortega May 4, 2016 The eyes have it Gene Ortega paints portraits rich in color and symbolism. "My style is chaotic with a bit of refinement," says Gene, a systems engineer in Facility System Engineering. "It can be almost photo-realistic, but you can see the brushstrokes and the texture in it, and the chaos and the anger." Gene's vivid paintings explore religious iconography and Day of the Dead motifs in portraits, often drawing on the imagery of saints, the Virgin Mary,

  5. Employee Spotlight: Ian Tregillis

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

    Ian Tregillis Ian Tregillis-Master of Alternate Worlds Laboratory physicist creates intricate, exquisitely crafted settings for his genre-bending science fiction novels tregillis tregillis tregillis tregillis 12 3 4 "I had the misconception that the time would come when I had the time. As I got older and more mature, I realized I'd have to make the time." Master of Alternate Worlds Laboratory physicist Ian Tregillis of the Plasma Theory and Applications group (XCP-6 ) spends his work

  6. Employee Spotlight: Janice Lovato

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

    Janice Lovato March 10, 2015 A gift for imagination While the Associate Directorate for Nuclear and High Hazard Operations' Janice Lovato was still working as a cashier at Smith's Food and Drug Center in Los Alamos over a decade ago, a regular, usually friendly customer came through her line one day, but this time in an obviously disgruntled mood. As the shopper slowly placed his purchases on the cash register counter, he looked at Lovato in exasperation and told her that standing at the cash

  7. Employee Spotlight: Jeff Martin

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

    Jeff Martin Jeff Martin-Going feral Two long-distance solo hikes on the breathtaking Colorado Plateau took Martin into the vicinity of Canyonlands National Park, the Glen Canyon National Recreation Area and Lake Powell martin martin martin martin martin martin martin martin martin 12 3 45 6 789 "There is not much sound down here, just the light crunch of my steps on the canyon floor's natural gravel and the occasional scrape of my pack as it touches the walls." Going feral It usually

  8. Employee Spotlight: Jonathan Engle

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

    Jonathan Engle August 14, 2014 "You have cancer" are among the most feared words one can imagine hearing from one's physician, but if Jonathan (Jon) Engle, Reines Distinguished Postdoctoral Fellow at the Laboratory, has anything to do with it cancer patients may someday hope for a new and improved treatment option: Killing cancer cells from inside the body with the help of nuclear energy. "The three cancer remedies primarily used today-surgery, chemotherapy and radiation therapy

  9. Employee Spotlight: Melissa Montoya

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

    Melissa Montoya July 26, 2016 Helping students reach for the future Melissa Montoya of the Policy Office (ADMASER-IS) is devoted to raising a bright 11- year-old son whose passions include both basketball and math, but her dedication to young people goes beyond family. When she is not at her job, she is at her son's school, Tony E. Quintana Elementary, in Sombrillo (part of the Española School District). The students there have come to think of her as part of the staff. "I've known some of

  10. Employee Spotlight: Michael Torrez

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

    Michael Torrez August 26, 2014 Michael (Miguél) Torrez, by day a research technologist in the Laboratory's Materials Physics and Applications Division, spends much of his free time researching New Mexico's family histories and helping interested parties verify or fill in their family tree by complementing any existing document trail with the genetic testing that has become available in recent years. Torrez conducts research at the New Mexico State Library (photo courtesy of the Albuquerque

  11. Employee Spotlight: Monika Bittman

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

    Monika Bittman June 2, 2014 Monika Bittman has wanted to be an artist ever since she was a little girl in Prague, Czechoslovakia, now the Czech Republic. Today Bittman applies her creative eye and attention to detail in her work as a web designer at the Laboratory and on weekends spends as much time as possible painting in her Santa Fe studio. Expressing herself artistically is a way to learn about herself and the world for Bittman. The upheavals of growing up in a Soviet-controlled country,

  12. Employee Spotlight: Ron Barber

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

    Ron Barber September 9, 2014 Ron Barber, a mechanical engineer in the Laboratory's Accelerator Operations and Technology Division, has always enjoyed the great outdoors for fun and exploration, but six or seven years ago he began to combine his love of nature and open spaces with a personal interest in researching the astronomical knowledge of long-ago civilizations that once inhabited the American Southwest and the Sierra Madre Mountains in Mexico. "People have been watching, and to some

  13. Scientists in the Spotlight

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

    and are hitting the ground running spreading the word about topics such as sea ice, supernovae, or aquatic biology. These conversations are for ANY age audience, so bring your...

  14. DOE Sustainability SPOtlight

    Energy Savers [EERE]

    Privacy Awareness Training The Privacy Act & Safeguarding Personally Identifiable Information (PII) 2 Purpose This training is designed to address the importance of privacy, and to ensure that DOE employees are aware of the vital role they play in safeguarding privacy and protecting Personally Identifiable Information (PII). 3 Privacy & PII is a Special Area of Interest at DOE Recent breaches of PII across the government, including some at the Department of Energy, were well publicized,

  15. DOE Sustainability SPOtlight

    Energy Savers [EERE]

    7 October 2014 U.S. Department of Energy Sustainability Performance Office SUSTAINABILITY ANNOUNCEMENTS SPO Launches Sustainability Dashboard for Data Reporting and Analysis On October 7, the Sustainability Performance Office (SPO) launched the DOE Sustainability Dashboard to serve several important functions for DOE sustainability reporting. The Dashboard maintains historical datasets for each DOE site and National Laboratory and will collect current year data for reporting to the Office of

  16. DOE Sustainability SPOtlight

    Energy Savers [EERE]

    6 September 2014 U.S. Department of Energy Sustainability Performance Office SUSTAINABILITY ANNOUNCEMENTS OMB/CEQ Ranks The Most Sustainable Agencies in the Federal Government In an effort to lead by example, the Obama administration has put forth multiple executive orders in hopes of leading agencies toward greener technology and lower greenhouse gas emissions. The Office of Management and Budget (OMB) has teamed up with the Council on Environmental Quality to track the progress of these

  17. Scientists in the Spotlight

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

    informative, but fun too On Saturday, June 13 from 11:00 AM to 1:00 PM, Teri Roberts, a software quality engineering and development specialist and Mandie Gehring, a physicist,...

  18. Employee Spotlight: Kristen Honig

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

    and used spring break 2002 to complete the basic firefighting courses and physical fitness test." Honig was fortunate as well. "My mom was volunteering at Bandelier National...

  19. Scientists in the Spotlight

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

    technology, engineering, or math (STEM) subject. Conversations are intended for all ages and include interactive hands-on activities that make learning easy and fun. To learn...

  20. Scientists in the Spotlight

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

    engineering, or math (STEM) subject. These conversations are intended for all ages, so bring your kids and stop by the museum for a chat. While you're here, be sure to...

  1. Scientists in the Spotlight

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

    the science of computer software and hardware. These conversations are intended for all ages and include interactive hands-on activities that make learning more fun. Be sure to...

  2. Scientists in the Spotlight

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

    radiography to learn more about explosives. These conversations are intended for all ages, so bring your kids and stop by the museum for a chat. While you're here, be sure to...

  3. Scientists in the Spotlight

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

    technology, engineering, or math (STEM) subject. Conversations are intended for all ages and include interactive hands-on activities that make learning easy and fun. On...

  4. Employee Spotlight: Ann Schlenker

    SciTech Connect (OSTI)

    Ann Schlenker

    2013-03-20

    Ann Schlenker, Director for the Center for Transportation Research, discusses mentoring and working at Argonne.

  5. Spotlight: Christopher Lee

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

    Under the program, researchers based at DOE national laboratories will receive financial ... strength and leadership of the nuclear theory group and the Laboratory as a whole, to ...

  6. Employee Spotlight: Ann Schlenker

    ScienceCinema (OSTI)

    Ann Schlenker

    2013-06-10

    Ann Schlenker, Director for the Center for Transportation Research, discusses mentoring and working at Argonne.

  7. Midtemperature solar systems test facility predictions for thermal performance based on test data. Polisolar Model POL solar collector with glass reflector surface

    SciTech Connect (OSTI)

    Harrison, T.D.

    1981-05-01

    Thermal performance predictions based on test data are presented for the Polisolar Model POL solar collector, with glass reflector surfaces, for three output temperatures at five cities in the United States.

  8. Midtemperature solar systems test facility predictions for thermal performance based on test data. Toltec two-axis tracking solar collector with 3M acrylic polyester film reflector surface

    SciTech Connect (OSTI)

    Harrison, T.D.

    1981-06-01

    Thermal performance predictions based on test data are presented for the Toltec solar collector, with acrylic film reflector surface, for three output temperatures at five cities in the United States.

  9. Midtemperature Solar Systems Test Facility predictions for thermal performance of the Solar Kinetics T-700 solar collector with FEK 244 reflector surface

    SciTech Connect (OSTI)

    Harrison, T.D.

    1980-11-01

    Thermal performance predictions are presented for the Solar Kinetics T-700 solar collector, with FEK 244 reflector surface, for three output temperatures at five cities in the United States.

  10. Non-astigmatic imaging with matched pairs of spherically bent reflectors

    DOE Patents [OSTI]

    Bitter, Manfred Ludwig; Hill, Kenneth Wayne; Scott, Steven Douglas; Feder, Russell; Ko, Jinseok; Rice, John E.; Ince-Cushman, Alexander Charles; Jones, Frank

    2012-07-10

    Arrangements for the point-to-point imaging of a broad spectrum of electromagnetic radiation and ultrasound at large angles of incidence employ matched pairs of spherically bent reflectors to eliminate astigmatic imaging errors. Matched pairs of spherically bent crystals or spherically bent multi-layers are used for X-rays and EUV radiation; and matched pairs of spherically bent mirrors that are appropriate for the type of radiation are used with microwaves, infrared and visible light, or ultrasound. The arrangements encompass the two cases, where the Bragg angle--the complement to the angle of incidence in optics--is between 45.degree. and 90.degree. on both crystals/mirrors or between 0.degree. and 45.degree. on the first crystal/mirror and between 45.degree. and 90.degree. on the second crystal/mirror, where the angles of convergence and divergence are equal. For x-rays and EUV radiation, also the Bragg condition is satisfied on both spherically bent crystals/multi-layers.

  11. Correlated-intensity velocimeter for arbitrary reflector for laser-produced plasma experiments

    SciTech Connect (OSTI)

    Wang Zhehui; Luo Shengnian; Barnes, Cris W.; Briggs, Matthew E.; Paisley, Dennis L.; Paul, Stephen F.

    2006-10-15

    A laser-based technique, called correlated-intensity velocimeter for arbitrary reflector (CIVAR), is described for velocity measurement of reflecting surfaces in real time. Velocity versus time is an important measurement in laser-produced high-energy density plasma experiments because the motion of the surface depends on both the equation of the state of the surface material and laser-produced plasma. The physics and working principle of CIVAR are the same as those of a previous concept that resolves Doppler shift of plasma light emission using a pair of narrow passband interference filters. One unique feature of CIVAR is that a reflected laser beam is used instead of plasma emission. Therefore, CIVAR is applicable to both emitting and nonemitting reflecting surfaces. Other advantages of CIVAR include its simplicity, lower cost, and unambiguous data analysis that can be fully automated. The design of a single-point CIVAR is described in detail with emphasis on laser wavelength selection and signal-to-noise ratio. The single-point CIVAR system can be expanded into a multiple-point system straightforwardly. It is possible to use CIVAR concept to construct a two-dimensional imaging system for a nonuniform velocity field of a large reflecting surface; such a velocity imaging system may have applications beyond laser-produced plasma experiments, for example, in shock compression of condensed matter.

  12. Observation of Significant Quantum Efficiency Enhancement from a Polarized Photocathode with Distributed Brag Reflector

    SciTech Connect (OSTI)

    Zhang, Shukui; Poelker, Matthew; Stutzman, Marcy L.; Chen, Yiqiao; Moy, Aaron

    2015-09-01

    Polarized photocathodes with higher Quantum efficiency (QE) would help to reduce the technological challenge associated with producing polarized beams at milliampere levels, because less laser light would be required, which simplifies photocathode cooling requirements. And for a given amount of available laser power, higher QE would extend the photogun operating lifetime. The distributed Bragg reflector (DBR) concept was proposed to enhance the QE of strained-superlattice photocathodes by increasing the absorption of the incident photons using a Fabry-Perot cavity formed between the front surface of the photocathode and the substrate that includes a DBR, without compromising electron polarization. Here we present recent results showing QE enhancement of a GaAs/GaAsP strained-superlattice photocathode made with a DBR structure. Typically, a GaAs/GaAsP strained-superlattice photocathode without DBR provides a QE of 1%, at a laser wavelength corresponding to peak polarization. In comparison, the GaAs/GaAsP strained-superlattice photocathodes with DBR exhibited an enhancement of over 2 when the incident laser wavelength was tuned to meet the resonant condition for the Fabry-Perot resonator.

  13. Kinetics of the transformation of halogenated aliphatic compounds by iron sulfide

    SciTech Connect (OSTI)

    Butler, E.C.; Hayes, K.F.

    2000-02-01

    The objectives of the experiments described here were 2-fold: first, to assess the relative rates and products of transformation of a variety of halogenated aliphatics by the soil mineral FeS under a uniform set of experimental conditions and, second, to establish whether there exists a relationship between rate constants for these transformations and free energy or molecular parameters. The transformation of nine halogenated aliphatic compounds by 10 g/L (0.5 m{sup 2}/L) FeS at pH 8.3 was studied in batch experiments. These compounds were as follows: pentachloroethane (PCA), 1,1,2,2- and 1,1,1,2-tetrachloroethanes (1122-TeCA and 1112-TeCA), 1,1,1- and 1,1,2-trichloroethanes (111-TCA and 112-TCA), 1,1- and 1,2-dichloroethanes (11-DCA and 12-DCA), carbon tetrachloride (CT), and tribromomethane (TBM). 11-DCA, 12-DCA, and 112-TCA showed no appreciable transformation by FeS over approximately 120 days, but the other compounds were transformed with half-lives of hours to days. PCA and 1122-TeCA underwent dehydrohalogenation faster than FeS-mediated reductive dehalogenation reactions under the conditions of these experiments. The remaining compounds for which significant transformation was observed underwent FeS-mediated reactions more rapidly than hydrolysis or dehydrohalogenation. For 1112-TeCA, the dihaloelimination product (1,1-dichloroethylene) was the only reaction product detected. For 111-TCA, CT, and TBM, hydrogenolysis products were the only products detected, although their mass recoveries were considerably less than 100%. Two simple log-linear correlations between rate constants and either one-electron reduction potentials or homolytic bond dissociation enthalpies were developed, with coefficients of determination (R{sup 2} values) of 0.48 and 0.82, respectively. These findings are consistent with a rate-limiting step involving homolytic bond dissociation. However, neither correlation accurately described the reactivity of all the compounds that were studied

  14. Halogenation and proteolysis of complement component C3 on Salmonella typhimurium during phagocytosis by human neutrophils

    SciTech Connect (OSTI)

    Joiner, K.A.; Schweinle, J.E.

    1989-05-01

    We examined the fate of C component C3 on the surface of Salmonella typhimurium during ingestion by human neutrophils. Initial experiments showed that C3 fragments and C3-acceptor complexes were the major serum ligands which were surface iodinated by canine myeloperoxidase on serum-incubated rough and smooth isolates of S. typhimurium. In contrast, labeled C3 was not identified when the same organisms were ingested by neutrophils in the presence of 125I-Na, a situation previously shown to iodinate particulate targets via the neutrophil myeloperoxidase-halide-H2O2 system. Pretreatment of neutrophils before phagocytosis with the lipid-soluble protease inhibitor diisopropylfluorophosphate (DFP), but not with other protease inhibitors (p-nitrophenylguanidinobenzoate, leupeptin, pepstatin), substantially blocked proteolysis of 125I-C3 on S. typhimurium strain RG108 during ingestion by neutrophils. Purification of neutrophil phagosomes containing S. typhimurium-bearing 125I-C3 showed that DFP but no other protease inhibitors blocked proteolysis of 125I-C3 within phagosomes. Iodinated C3-acceptor complexes were identified by immunoprecipitation from the detergent-insoluble fraction of phagosomes prepared from DFP-treated cells ingesting S. typhimurium in the presence of 125I-Na. These results show that C3 fragments on the surface of S. typhimurium are the major serum ligands which are halogenated and degraded by proteolysis during phagocytosis by human neutrophils, and suggest that the majority of proteolysis on the ingested target occurs within the neutrophil phagosome.

  15. Reflector Technology Development and System Design for Concentrating Solar Power Technologies

    SciTech Connect (OSTI)

    Adam Schaut Philip Smith

    2011-12-30

    Alcoa began this program in March of 2008 with the goal of developing and validating an advanced CSP trough design to lower the levelized cost of energy (LCOE) as compared to existing glass based, space-frame trough technology. In addition to showing a pathway to a significant LCOE reduction, Alcoa also desired to create US jobs to support the emerging CSP industry. Alcoa's objective during Phase I: Concept Feasibility was to provide the DOE with a design approach that demonstrates significant overall system cost savings without sacrificing performance. Phase I consisted of two major tasks; reflector surface development and system concept development. Two specific reflective surface technologies were investigated, silver metallized lamination, and thin film deposition both applied on an aluminum substrate. Alcoa prepared samples; performed test validation internally; and provided samples to the NREL for full-spectrum reflectivity measurements. The final objective was to report reflectivity at t = 0 and the latest durability results as of the completion of Phase 1. The target criteria for reflectance and durability were as follows: (1) initial (t = 0), hemispherical reflectance >93%, (2) initial spectral reflectance >90% for 25-mrad reading and >87% for 7-mrad reading, and (3) predicted 20 year durability of less than 5% optical performance drop. While the results of the reflective development activities were promising, Alcoa was unable to down-select on a reflective technology that met the target criteria. Given the progress and potential of both silver film and thin film technologies, Alcoa continued reflector surface development activities in Phase II. The Phase I concept development activities began with acquiring baseline CSP system information from both CSP Services and the DOE. This information was used as the basis to develop conceptual designs through ideation sessions. The concepts were evaluated based on estimated cost and high-level structural

  16. Performance of Coupled Cluster Theory in Thermochemical Calculations of Small Halogenated Compounds

    SciTech Connect (OSTI)

    Feller, David F. ); Peterson, Kirk A.; De Jong, Wibe A. ); Dixon, David A. )

    2003-02-23

    Atomization energies at 0 K and heats of formation at 298 K were obtained for a collection of small halogenated molecules from coupled cluster theory including noniterative, quasi-perturbative triple excitations calculations with large basis sets (up through augmented septuple zeta quality in some cases). In order to achieve near chemical accuracy (1 kcal/mol) in the thermodynamic properties, we adopted a composite theoretical approach which incorporated estimated complete basis set binding energies based on frozen core coupled cluster theory energies and (up to) five corrections: (1) a core/valence correction; (2) a Douglas-Kroll-Hess scalar relativistic correction; (3) a first order atomic spin-orbit correction; (4) a second order spin-orbit correction for heavy elements and (5) an approximate correction to account for the remaining correlation energy. The last of these corrections is based on a recently proposed approximation to full configuration interaction via a continued fraction approximant for coupled cluster theory (CCSD(T)-cf). Failure to consider corrections (1) to (4) can introduce errors significantly in excess of the target accuracy of 1 kcal/mol. Although some cancellation of error may occur if one or more of these corrections is omitted, such a situation is by no means universal and cannot be relied upon for high accuracy. The accuracy of the Douglas-Kroll-Hess approach was calibrated against both new and previously published 4-component Dirac Coulomb results at the coupled cluster level of theory. In addition, vibrational zero point energies were computed at the coupled cluster level of theory for those polyatomic systems lacking an experimental anharmonic value.

  17. Back reflectors based on buried Al{sub 2}O{sub 3} for enhancement of photon recycling in monolithic, on-substrate III-V solar cells

    SciTech Connect (OSTI)

    García, I.; Ward, J. S.; Steiner, M. A.; Geisz, J. F.; Kurtz, S. R.

    2014-09-29

    Photon management has been shown to be a fruitful way to boost the open circuit voltage and efficiency of high quality solar cells. Metal or low-index dielectric-based back reflectors can be used to confine the reemitted photons and enhance photon recycling. Gaining access to the back of the solar cell for placing these reflectors implies having to remove the substrate, with the associated added complexity to the solar cell manufacturing. In this work, we analyze the effectiveness of a single-layer reflector placed at the back of on-substrate solar cells, and assess the photon recycling improvement as a function of the refractive index of this layer. Al{sub 2}O{sub 3}-based reflectors, created by lateral oxidation of an AlAs layer, are identified as a feasible choice for on-substrate solar cells, which can produce a V{sub oc} increase of around 65% of the maximum increase attainable with an ideal reflector. The experimental results obtained using prototype GaAs cell structures show a greater than two-fold increase in the external radiative efficiency and a V{sub oc} increase of ∼2% (∼18 mV), consistent with theoretical calculations. For GaAs cells with higher internal luminescence, this V{sub oc} boost is calculated to be up to 4% relative (36 mV), which directly translates into at least 4% higher relative efficiency.

  18. Separation of toxic metal ions, hydrophilic hydrocarbons, hydrophobic fuel and halogenated hydrocarbons and recovery of ethanol from a process stream

    DOE Patents [OSTI]

    Kansa, Edward J.; Anderson, Brian L.; Wijesinghe, Ananda M.; Viani, Brian E.

    1999-01-01

    This invention provides a process to tremendously reduce the bulk volume of contaminants obtained from an effluent stream produced subsurface remediation. The chemicals used for the subsurface remediation are reclaimed for recycling to the remediation process. Additional reductions in contaminant bulk volume are achieved by the ultra-violet light destruction of halogenated hydrocarbons, and the complete oxidation of hydrophobic fuel hydrocarbons and hydrophilic hydrocarbons. The contaminated bulk volume will arise primarily from the disposal of the toxic metal ions. The entire process is modular, so if there are any technological breakthroughs in one or more of the component process modules, such modules can be readily replaced.

  19. Separation of toxic metal ions, hydrophilic hydrocarbons, hydrophobic fuel and halogenated hydrocarbons and recovery of ethanol from a process stream

    DOE Patents [OSTI]

    Kansa, E.J.; Anderson, B.L.; Wijesinghe, A.M.; Viani, B.E.

    1999-05-25

    This invention provides a process to tremendously reduce the bulk volume of contaminants obtained from an effluent stream produced subsurface remediation. The chemicals used for the subsurface remediation are reclaimed for recycling to the remediation process. Additional reductions in contaminant bulk volume are achieved by the ultra-violet light destruction of halogenated hydrocarbons, and the complete oxidation of hydrophobic fuel hydrocarbons and hydrophilic hydrocarbons. The contaminated bulk volume will arise primarily from the disposal of the toxic metal ions. The entire process is modular, so if there are any technological breakthroughs in one or more of the component process modules, such modules can be readily replaced. 3 figs.

  20. Analyses of the reflector tank, cold source, and beam tube cooling for ANS reactor. [Advanced Neutron Source (ANS)

    SciTech Connect (OSTI)

    Marland, S. )

    1992-07-01

    This report describes my work as an intern with Martin Marietta Energy Systems, Inc., in the summer of 1991. I was assigned to the Reactor Technology Engineering Department, working on the Advanced Neutron Source (ANS). My first project was to select and analyze sealing systems for the top of the diverter/reflector tank. This involved investigating various metal seals and calculating the forces necessary to maintain an adequate seal. The force calculations led to an analysis of several bolt patterns and lockring concepts that could be used to maintain a seal on the vessel. Another project involved some pressure vessel stress calculations and the calculation of the center of gravity for the cold source assembly. I also completed some sketches of possible cooling channel patterns for the inner vessel of the cold source. In addition, I worked on some thermal design analyses for the reflector tank and beam tubes, including heat transfer calculations and assisting in Patran and Pthermal analyses. To supplement the ANS work, I worked on other projects. I completed some stress/deflection analyses on several different beams. These analyses were done with the aid of CAASE, a beam-analysis software package. An additional project involved bending analysis on a carbon removal system. This study was done to find the deflection of a complex-shaped beam when loaded with a full waste can.

  1. Effect of non-uniform slow wave structure in a relativistic backward wave oscillator with a resonant reflector

    SciTech Connect (OSTI)

    Chen, Changhua; Xiao, Renzhen; Sun, Jun; Song, Zhimin; Huo, Shaofei; Bai, Xianchen; Shi, Yanchao; Liu, Guozhi

    2013-11-15

    This paper provides a fresh insight into the effect of non-uniform slow wave structure (SWS) used in a relativistic backward wave oscillator (RBWO) with a resonant reflector. Compared with the uniform SWS, the reflection coefficient of the non-uniform SWS is higher, leading to a lower modulating electric field in the resonant reflector and a larger distance to maximize the modulation current. Moreover, for both types of RBWOs, stronger standing-wave field takes place at the rear part of the SWS. In addition, besides Cerenkov effects, the energy conversion process in the RBWO strongly depends on transit time effects. Thus, the matching condition between the distributions of harmonic current and standing wave field provides a profound influence on the beam-wave interaction. In the non-uniform RBWO, the region with a stronger standing wave field corresponds to a higher fundamental harmonic current distribution. Particle-in-cell simulations show that with a diode voltage of 1.02 MV and beam current of 13.2 kA, a microwave power of 4 GW has been obtained, compared to that of 3 GW in the uniform RBWO.

  2. 2014-04-11 Issuance: Energy Conservation Standards for General Service Fluorescent Lamps and Incandescent Reflector Lamps; Notice of Proposed Rulemaking

    Broader source: Energy.gov [DOE]

    This document is a pre-publication Federal Register notice of proposed rulemaking regarding energy conservation standards for general service fluorescent lamps and incandescent reflectors lamps, as issued by the Assistant Secretary for Energy Efficiency and Renewable Energy on April 11, 2014.

  3. Midtemperature Solar Systems Test Facility predictions for thermal performance based on test data: Custom Engineering trough with glass reflector surface and Sandia-designed receivers

    SciTech Connect (OSTI)

    Harrison, T.D.

    1981-05-01

    Thermal performance predictions based on test data are presented for the Custom Engineering trough and Sandia-designed receivers, with glass reflector surface, for three output temperatures at five cities in the United States. Two experimental receivers were tested, one with an antireflective coating on the glass envelope around the receiver tube and one without the antireflective coating.

  4. 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.

  5. Electromagnetic modeling of the energy distribution of a metallic cylindrical parabolic reflector covered with a magnetized plasma layer

    SciTech Connect (OSTI)

    Niknam, A. R. Khajehmirzaei, M. R.; Davoudi-Rahaghi, B.; Rahmani, Z.; Jazi, B.; Abdoli-Arani, A.

    2014-07-15

    The energy distribution along the focal axis of a long metallic cylindrical parabolic reflector with a plasma layer on its surface in the presence of an external magnetic field is investigated. The effects of some physical parameters, such as the plasma frequency, the wave frequency and the thickness of plasma layer on the energy distribution and the reflected and transmitted electromagnetic fields, are simulated. These investigations for both S- and P-polarizations have been done separately. It is found that the maximum value of the reflected intensity increases by increasing the incident wave frequency and by decreasing the plasma layer thickness and the plasma frequency for both polarizations. Furthermore, the results show that the increase of the magnetic field strength can cause an increase in the reflected intensity for S-polarization and a slight decrease for P-polarization.

  6. STARTUP REACTIVITY ACCOUNTABILITY ATTRIBUTED TO ISOTOPIC TRANSMUTATIONS IN THE IRRADIATED BERYLLIUM REFLECTOR OF THE HIGH FLUX ISTOTOPE REACTOR

    SciTech Connect (OSTI)

    Chandler, David [ORNL] [ORNL; Maldonado, G Ivan [ORNL] [ORNL; Primm, Trent [ORNL] [ORNL

    2010-01-01

    The objective of this study is to develop a methodology to predict the reactivity impact as a function of outage time between cycles of 3He, 6Li, and other poisons in the High Flux Isotope Reactor s (HFIR) beryllium reflector. The reactivity worth at startup of the HFIR has been incorrectly predicted in the past after the reactor has been shut-down for long periods of time. The incorrect prediction was postulated to be due to the erroneous calculation of 3He buildup in the beryllium reflector. It is necessary to develop a better estimate of the start-of-cycle symmetric critical control element positions since if the estimated and actual symmetrical critical control element positions differ by more than $1.55 in reactivity (approximately one-half inch in control element startup position), HFIR is to be shutdown and a technical evaluation is performed to resolve the discrepancy prior to restart. 3He is generated and depleted during operation, but during an outage, the depletion of 3He ceases because it is a stable isotope. 3He is born from the radioactive decay of tritium, and thus the concentration of 3He increases during shutdown. The computer program SCALE, specifically the TRITON and CSAS5 control modules including the KENO V.A, COUPLE, and ORIGEN functional modules were utilized in this study. An equation relating the down time (td) to the change in symmetric control element position was generated and validated against measurements for approximately 40 HFIR operating cycles. The newly-derived correlation was shown to improve accuracy of predictions for long periods of down time.

  7. Optimal design of one-dimensional photonic crystal back reflectors for thin-film silicon solar cells

    SciTech Connect (OSTI)

    Chen, Peizhuan; Hou, Guofu Zhang, Jianjun Zhang, Xiaodan; Zhao, Ying

    2014-08-14

    For thin-film silicon solar cells (TFSC), a one-dimensional photonic crystal (1D PC) is a good back reflector (BR) because it increases the total internal reflection at the back surface. We used the plane-wave expansion method and the finite difference time domain (FDTD) algorithm to simulate and analyze the photonic bandgap (PBG), the reflection and the absorption properties of a 1D PC and to further explore the optimal 1D PC design for use in hydrogenated amorphous silicon (a-Si:H) solar cells. With identified refractive index contrast and period thickness, we found that the PBG and the reflection of a 1D PC are strongly influenced by the contrast in bilayer thickness. Additionally, light coupled to the top three periods of the 1D PC and was absorbed if one of the bilayers was absorptive. By decreasing the thickness contrast of the absorptive layer relative to the non-absorptive layer, an average reflectivity of 96.7% was achieved for a 1D PC alternatively stacked with a-Si:H and SiO{sub 2} in five periods. This reflectivity was superior to a distributed Bragg reflector (DBR) structure with 93.5% and an Ag film with 93.4%. n-i-p a-Si:H solar cells with an optimal 1D PC-based BR offer a higher short-circuit current density than those with a DBR-based BR or an AZO/Ag-based BR. These results provide new design rules for photonic structures in TFSC.

  8. Midtemperature Solar Systems Test Facility predictions for thermal performance based on test data. Alpha Solarco Model 104 solar collector with 0. 125-inch Schott low-iron glass reflector surface

    SciTech Connect (OSTI)

    Harrison, T.D.

    1981-04-01

    Thermal performance predictions based on test data are presented for the Alpha Solarco Model 104 solar collector, with 0.125-inch Schott low-iron glass reflector surface, for three output temperatures at five cities in the United States.

  9. ,,,"Incandescent","Standard Fluorescent","Compact Fluorescent","High-Intensity Discharge","Halogen"

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

    B39. Lighting Equipment, Floorspace, 1999" ,"Total Floorspace (million square feet)" ,"All Buildings","All Lit Buildings","Lighting Equipment (more than one may apply)" ,,,"Incandescent","Standard Fluorescent","Compact Fluorescent","High-Intensity Discharge","Halogen" "All Buildings ................",67338,64321,38156,60344,20666,19223,17926 "Building Floorspace" "(Square

  10. Preliminary research on overmoded high-power millimeter-wave Cerenkov generator with dual-cavity reflector in low guiding magnetic field

    SciTech Connect (OSTI)

    Ye, Hu; Wu, Ping; Chen, Changhua; Ning, Hui; Tan, Weibing; Teng, Yan; Shi, Yanchao; Song, Zhimin; Cao, Yibing; Du, Zhaoyu

    2015-12-15

    This paper presents preliminary research on a V-band overmoded Cerenkov generator with dual-cavity reflector operating in a low guiding magnetic field. It is found that the fluctuation of the electron envelope in the low guiding magnetic field can be predicted using an equivalent coaxial model of a foilless diode, and a dual-cavity reflector based on the model matching method can provide strong reflection at the front end of the overmoded structures so that any microwave power that leaks into the diode region can be effectively suppressed. Numerical simulations indicate that the control of the beam envelope and the use of the dual-cavity reflector ease generator operation in the low guiding magnetic field. In the experimental research, the fluctuation of the annular electron beam with the outer radius of 7.5 mm measures approximately 0.7 mm, which is in good agreement with the theoretical results. The disturbance caused by power leaking from the overmoded slow wave structure is eliminated by the dual-cavity reflector. With accurate fabrication and assembly processes, an operating frequency of 61.6 GHz is attained by the fifth harmonic heterodyne method, and the output power is measured to be approximately 123 MW by the far-field measurement method at a diode voltage of 445 kV, a beam current of 4.45 kA, and under a guiding magnetic field of 1.45 T. The output mode is measured using an array of neon flash bulbs, and the pulse shortening phenomenon is both observed and analyzed.

  11. Catching the role of anisotropic electronic distribution and charge transfer in halogen bonded complexes of noble gases

    SciTech Connect (OSTI)

    Bartocci, Alessio; Cappelletti, David; Pirani, Fernando; Belpassi, Leonardo; Falcinelli, Stefano; Grandinetti, Felice; Tarantelli, Francesco

    2015-05-14

    The systems studied in this work are gas-phase weakly bound adducts of the noble-gas (Ng) atoms with CCl{sub 4} and CF{sub 4}. Their investigation was motivated by the widespread current interest for the intermolecular halogen bonding (XB), a structural motif recognized to play a role in fields ranging from elementary processes to biochemistry. The simulation of the static and dynamic behaviors of complex systems featuring XB requires the formulation of reliable and accurate model potentials, whose development relies on the detailed characterization of strength and nature of the interactions occurring in simple exemplary halogenated systems. We thus selected the prototypical Ng-CCl{sub 4} and Ng-CF{sub 4} and performed high-resolution molecular beam scattering experiments to measure the absolute scale of their intermolecular potentials, with high sensitivity. In general, we expected to probe typical van der Waals interactions, consisting of a combination of size (exchange) repulsion with dispersion/induction attraction. For the He/Ne-CF{sub 4}, the analysis of the glory quantum interference pattern, observable in the velocity dependence of the integral cross section, confirmed indeed this expectation. On the other hand, for the He/Ne/Ar-CCl{sub 4}, the scattering data unravelled much deeper potential wells, particularly for certain configurations of the interacting partners. The experimental data can be properly reproduced only including a shifting of the repulsive wall at shorter distances, accompanied by an increased role of the dispersion attraction, and an additional short-range stabilization component. To put these findings on a firmer ground, we performed, for selected geometries of the interacting complexes, accurate theoretical calculations aimed to evaluate the intermolecular interaction and the effects of the complex formation on the electron charge density of the constituting moieties. It was thus ascertained that the adjustments of the potential

  12. Fiber optic sensor employing successively destroyed coupled points or reflectors for detecting shock wave speed and damage location

    DOE Patents [OSTI]

    Weiss, Jonathan D.

    1995-01-01

    A shock velocity and damage location sensor providing a means of measuring shock speed and damage location. The sensor consists of a long series of time-of-arrival "points" constructed with fiber optics. The fiber optic sensor apparatus measures shock velocity as the fiber sensor is progressively crushed as a shock wave proceeds in a direction along the fiber. The light received by a receiving means changes as time-of-arrival points are destroyed as the sensor is disturbed by the shock. The sensor may comprise a transmitting fiber bent into a series of loops and fused to a receiving fiber at various places, time-of-arrival points, along the receiving fibers length. At the "points" of contact, where a portion of the light leaves the transmitting fiber and enters the receiving fiber, the loops would be required to allow the light to travel backwards through the receiving fiber toward a receiving means. The sensor may also comprise a single optical fiber wherein the time-of-arrival points are comprised of reflection planes distributed along the fibers length. In this configuration, as the shock front proceeds along the fiber it destroys one reflector after another. The output received by a receiving means from this sensor may be a series of downward steps produced as the shock wave destroys one time-of-arrival point after another, or a nonsequential pattern of steps in the event time-of-arrival points are destroyed at any point along the sensor.

  13. Fiber optic sensor employing successively destroyed coupled points or reflectors for detecting shock wave speed and damage location

    DOE Patents [OSTI]

    Weiss, J.D.

    1995-08-29

    A shock velocity and damage location sensor providing a means of measuring shock speed and damage location is disclosed. The sensor consists of a long series of time-of-arrival ``points`` constructed with fiber optics. The fiber optic sensor apparatus measures shock velocity as the fiber sensor is progressively crushed as a shock wave proceeds in a direction along the fiber. The light received by a receiving means changes as time-of-arrival points are destroyed as the sensor is disturbed by the shock. The sensor may comprise a transmitting fiber bent into a series of loops and fused to a receiving fiber at various places, time-of-arrival points, along the receiving fibers length. At the ``points`` of contact, where a portion of the light leaves the transmitting fiber and enters the receiving fiber, the loops would be required to allow the light to travel backwards through the receiving fiber toward a receiving means. The sensor may also comprise a single optical fiber wherein the time-of-arrival points are comprised of reflection planes distributed along the fibers length. In this configuration, as the shock front proceeds along the fiber it destroys one reflector after another. The output received by a receiving means from this sensor may be a series of downward steps produced as the shock wave destroys one time-of-arrival point after another, or a nonsequential pattern of steps in the event time-of-arrival points are destroyed at any point along the sensor. 6 figs.

  14. Employee Spotlight: Erica Larson Baron

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

    Erica Larson Baron Erica Larson Baron-Fleet feet A top trail-running racer nationally, Erica Erica Baron of Information Systems and Modeling (A-1) often figures out work problems on her daily training runs at the Laboratory. May 31, 2016 Erica Larson Baron Erica Larson Baron Erica Larson Baron Erica Larson Baron Erica has been a runner since junior high, when she figured out she was better at running up and down the basketball court without getting tired than she was with the basketball. Fleet

  15. Spotlights Archive | Department of Energy

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

    Business Center (LMBC) in Morgantown, West Virginia, is now guarded by a state-of-the-art FM-200 Fire Suppression System. Installation of the new system began on June 11,...

  16. Spotlights Archive | Department of Energy

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

    expanding tribal educational programs. July 2, 2015 Environmental Justice: Made-for-Television-Climate Change: A Global Reality The U.S. Department of Energy was invited to be a...

  17. Spotlights Archive | Department of Energy

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

    a trip to the National Museum of Nuclear Science & History, teamwork and personal development training, as well as site visits within the Grants Mining District. October 15,...

  18. Spotlights Archive | Department of Energy

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

    as a tribute to the nation's armed forces (see bottom of page for a history of the Blue Star Memorials). July 12, 2013 Next Generation (NextGen) Geospatial Information System...

  19. Spotlights Archive | Department of Energy

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

    sites located in 26 states. LM is also responsible for the administration of contractor pension plans and post-retirement benefits for over 10,000 former contractor workers...

  20. Employee Spotlight: Erica Larson Baron

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

    Erica Larson Baron May 31, 2016 Fleet feet If you're a runner at a mountain trail race in New Mexico or even beyond, chances are you'll see Erica Larson Baron twice: once as she drops you in the first couple of miles and once at the finish line, cooling off as everyone else trickles in. She's that fast. And she's fast over long distances. The 2012 USA Track & Field 50K trail champion, Erica is a top distance runner with the résumé to prove it. Besides winning the Pikes Peak Marathon a

  1. Spotlights Archive | Department of Energy

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

    stakeholders and regulators to gather input on the effectiveness of DOE LM community communication strategies. www.lmsurveyaddress.com Survey ad for Quarterly Newsletter...

  2. Spotlights Archive | Department of Energy

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

    visitor to the Fernald Preserve in Ohio, enjoying activities like trail walks and bird watching. July 10, 2014 DOE Partners with Other Federal Agencies Working on the Wind...

  3. Spotlights Archive | Department of Energy

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

    hosted a Northern Saw-Whet Owl banding demonstration by master bander, Tim Tolford. Bird banding is a technique used to study wild birds by attaching a tag to their leg to...

  4. Spotlights Archive | Department of Energy

    Energy Savers [EERE]

    right) Yvonne Deyo (Navarro), Jonathan Graebener (U.S. Army Interagency Fellow), Tania Smith Taylor (DOE LM), April 19, 2016 Uranium Mining and Milling near Rifle, Colorado The ...

  5. Extreme ultraviolet reflector

    DOE Patents [OSTI]

    Newnam, Brian E.

    1990-01-01

    A multi-faceted mirror forms a retroreflector for a resonator loop in a free electron laser (FEL) operating in the XUV (.lambda.=10-100 nm). The number of facets is determined by the angle-of-incidence needed to obtain total external reflectance (TER) from the facet surface and the angle through which the FEL beam is to be turned. Angles-of-incidence greater than the angle for TER may be used to increase the area of the beam incident on the surface and reduce energy absorption density. Suitable surface films having TER in the 10-100 nm range may be formed from a variety of materials, including Al, single-crystal Si, Ag, and Rh. One of the facets is formed as an off-axis conic section to collimate the output beam with minimum astigmatism.

  6. ,,,"Incandescent","Standard Fluorescent","Compact Fluorescent","High-Intensity Discharge","Halogen"

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

    8. Lighting Equipment, Number of Buildings, 1999" ,"Number of Buildings (thousand)" ,"All Buildings","All Lit Buildings","Lighting Equipment (more than one may apply)" ,,,"Incandescent","Standard Fluorescent","Compact Fluorescent","High-Intensity Discharge","Halogen" "All Buildings ................",4657,4172,2193,3778,607,430,572 "Building Floorspace" "(Square Feet)"

  7. Metal halogen electrochemical cell

    SciTech Connect (OSTI)

    Walsh, F.M.

    1986-06-03

    An electrochemical cell is described having a metal anode selected from the group consisting of zinc and cadmium; a bromine cathode; and, an aqueous electrolyte containing a metal bromide, the metal having the same metal as the metal of the anode, the improvement comprising: a bromine complexing agent in the aqueous metal bromide electrolyte consisting solely of a tetraorgano substituted ammonium salt, which salt is soluble of water and forms and substantially water immiscible liquid bromine complex at temperatures in the range of about 10/sup 0/C. to about 60/sup 0/C. and wherein the tetraorgano substituted ammonium salt is selected from asymmetric quaternary ammonium compounds.

  8. High-power green and blue electron-beam pumped surface-emitting lasers using dielectric and epitaxial distributed Bragg reflectors

    SciTech Connect (OSTI)

    Klein, T.; Klembt, S.; Kozlovsky, V. I.; Zheng, A.; Tiberi, M. D.; Kruse, C.

    2015-03-21

    ZnSe-based electron-beam pumped vertical-cavity surface-emitting lasers for the green (λ = 530 nm) and blue (λ = 462 nm) spectral region have been realized. Structures with and without epitaxial bottom distributed Bragg reflector have been fabricated and characterized. The samples consist of an active region containing 20 quantum wells with a cavity length varying between an optical thickness of 10 λ to 20 λ. The active material is ZnCdSSe in case of the green devices and ZnSe for the blue ones. Room temperature single mode lasing for structures with and without epitaxial bottom mirror with a maximum output power up to 5.9 W (green) and 3.3 W (blue) is achieved, respectively.

  9. Evaluation of vost and semivost methods for halogenated compounds in the Clean Air Act amendments title III. Validation study at fossil fuel plant

    SciTech Connect (OSTI)

    Jackson, M.D.; Knoll, J.E.; Midgett, M.R.; McGaughey, J.F.; Bursey, J.T.

    1993-01-01

    The Clean Air Act Amendments of 1990 (CAAA), Title III, present a need for stationary source sampling and analytical methods for the list of 189 toxic air pollutants. The US Environmental Protection Agency (EPA) has used VOST and SemiVOST sampling and analytical methods for a wide variety of volatile and semivolatile organic compounds in the past, but these methodologies have been completely validated for only a few of the organic compounds. The applicability of VOST and SemiVOST techniques to the halogenated organic compounds listed in Title III of the Clean Air Act Amendments of 1990 has been evaluated under laboratory conditions for chromatographic separation, mass spectrometric response, sorbent recovery and analytical method detection limit. Dynamic spiking techniques for the sampling trains (both gaseous and liquid dynamic spiking) were also evaluated in the laboratory. In the study, the VOST and SemiVOST methods were evaluated in the field at a fossil fuel power plant. The source was selected to provide actual stationary source emissions with the compounds of interest present in trace amounts or not present. The paper presents the results of the field validation of the VOST and SemiVOST sampling and analytical methods.

  10. Comparison of Bacillus atrophaeus spore viability following exposure to detonation of C4 and to deflagration of halogen-containing thermites

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

    Tringe, J. W.; Letant, S. E.; Dugan, L. C.; Levie, H. W.; Kuhl, A. L.; Murphy, G. A.; Alves, S. W.; Vandersall, K. S.; Pantoya, M. L.

    2013-12-17

    We found that energetic materials are being considered for the neutralization of spore-forming bacteria. In this study, the neutralization effects of a monomolecular explosive were compared to the effects of halogen-containing thermites. Bacillus atrophaeus spores were exposed to the post-detonation environment of a 100 g charge of the military explosive C-4 at a range of 50 cm. These tests were performed in the thermodynamically closed environment of a 506-l barometric calorimeter. Associated temperatures were calculated using a thermodynamic model informed by calculations with the Cheetah thermochemicalcode. Temperatures in the range of 2300–2800 K were calculated to persist for nearly themore » full 4 ms pressure observation time. After the detonation event, spores were characterized using optical microscopy and the number of viable spores was assessed. These results showed live spore survival rates in the range of 0.01%–1%. For the thermite tests, a similar, smaller-scale configuration was employed that examined the spore neutralization effects of two thermites: aluminum with iodine pentoxide andaluminum with potassium chlorate. Only the former mixture resulted in spore neutralization. Our results indicate that the detonation environment produced by an explosive with no chemical biocides may provide effective spore neutralization similar to a deflagrating thermite containing iodine.« less

  11. Immunomodulation in C57Bl/6 mice following consumption of halogenated aromatic hydrocarbon-contaminated coho salmon (Oncorhynchus kisutch) from Lake Ontario

    SciTech Connect (OSTI)

    Cleland, G.B.; McElroy, P.J.; Sonstegard, R.A. )

    1989-01-01

    This report describes studies designed to assess the immunomodulatory effects associated with the consumption of coho salmon containing halogenated aromatic hydrocarbons (HAHs) and other compounds naturally bioaccumulated from Lake Ontario. Diets containing 33% coho salmon from Lake Ontario or the Pacific Ocean were fed to juvenile C57Bl/6 mice for 2-4 mo. Following 60 d, the mice that consumed Lake Ontario salmon had reduced IgM, IgG, and IgA plaque-forming cell responses to sheep erythrocytes. No changes were observed in total numbers of spleen lymphocytes, total T-lymphocytes or T-lymphocyte subsets as determined by flow cytometry. Cellular immunity, assessed by the cytotoxic T-lymphocyte response to allogeneic tumor target cells, was not altered following dietary exposure to Lake Ontario coho salmon for 4 mo. The observed humoral immunomodulation correlated with elevated PCB levels in the Lake Ontario salmon diets. The levels of pollutants such as mercury, tin compounds and other metals, PCDDs, and PCDFs were not examined.

  12. Toxic effects in C57B1/6 and DBA/2 mice following consumption of halogenated aromatic hydrocarbon-contaminated Great Lakes coho salmon (Oncorhynchus kisutch Walbaum)

    SciTech Connect (OSTI)

    Cleland, G.B.; Leatherland, J.F.; Sonstegard, R.A.

    1987-11-01

    Diets containing coho salmon (Oncorhynchus kisutch Walbaum) from the Pacific Ocean or from Lakes Erie, Michigan, and Ontario (containing a gradation from low to high of halogenated aromatic hydrocarbons, (HAHs)) were fed to C57B1/6 and DBA/2 mice. Following a 4-month dietary exposure to Lake Ontario salmon, both strains of mice demonstrated hepatomegaly. The ethoxyresorufin-O-deethylase (ERR) enzyme levels were elevated in livers of C57B1/6 mice fed diets of salmon from all of the Great Lakes studied, with exceptionally high levels detected in C57B1/6 mice fed Lake Ontario salmon. Induction of ERR enzyme levels was detected in DBA/2 mice only following dietary exposure to Lake Ontario salmon. Serum levels of L-thyroxine (T4) and triiodo-L-thryonine (T3) were suppressed in C57B1/6 mice following consumption of Lake Ontario coho salmon, but T3 and T4 levels remained unchanged in DBA/2 mice. In general, pathobiological effects correlated with both dietary HAH exposure level and Ah receptor status.

  13. Applications of Cu{sub 2}O octahedral particles on ITO glass in photocatalytic degradation of dye pollutants under a halogen tungsten lamp

    SciTech Connect (OSTI)

    Zhai, Wei; Sun, Fengqiang; Chen, Wei; Zhang, Lihe; Min, Zhilin; Li, Weishan

    2013-11-15

    Graphical abstract: - Highlights: • Photocatalytic activity of Cu{sub 2}O octahedral microcrystals on ITO glass was studied. • They showed high abilities in degradation of methylene blue in the presence of H{sub 2}O{sub 2}. • H{sub 2}O{sub 2} amount could affect the degradation efficiency. • Such particles could be easily recycled and still kept high activity. • Many dye pollutants and their mixtures could be efficiently degraded. - Abstract: Cu{sub 2}O octahedral microcrystals were prepared on the ITO glass by galvanostatic electrodeposition in CuSO{sub 4} solution with poly(vinylpryrrolidone) as the surfactant. By controlling the electrodeposition time, the microcrystals could be randomly distributed on the ITO glass and separated from each other, resulting in as many as possible (1 1 1) crystalline planes were exposed. Such microcrystals immobilized on ITO glass were employed in photodegradation of dye pollutants in the presence of H{sub 2}O{sub 2} under a 150 W halogen tungsten lamp. The photodegradation of methylene blue was taken as an example to evaluate the photocatalytic activities of the octahedral Cu{sub 2}O microcrystals. Effects of electrodeposition time and H{sub 2}O{sub 2} amount on the degradation efficiency was discussed, giving the optimum conditions and the corresponding degradation mechanism. The catalyst showed high ability in degradation of methylene blue, methyl orange, rhodamine B, eosin B and their mixtures under identical conditions.

  14. Employee Spotlight: José Valdez

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

    José Valdez José Valdez-Cherishing classic cars Find José Valdez in his garage, intensely focused on his hobby of refurbishing classic cars, preferably from the 1930s to early 1960s. June 24, 2014 José Valdez José Valdez "I used to help my dad in his body shop when I was a kid," Valdez explains, "and today my brother James is a car mechanic and my brother Bento runs a paint and body shop like our dad. Cars are in our blood." Most evenings, and certainly most weekends,

  15. Employee Spotlight: Sarah Soltau | Argonne National Laboratory

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

    Diana Anderson at media@anl.gov or (630) 252-4593. Connect Find an Argonne expert by subject. Follow Argonne on Twitter, Facebook, Google+ and LinkedIn. For inquiries on...

  16. Intern Spotlight: Elise Burton | Argonne National Laboratory

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

    Diana Anderson at media@anl.gov or (630) 252-4593. Connect Find an Argonne expert by subject. Follow Argonne on Twitter, Facebook, Google+ and LinkedIn. For inquiries on...

  17. Sambamurti Memorial Lecture: Spotlight on the Gluon

    ScienceCinema (OSTI)

    Michael Begelas

    2010-09-01

    Begel uses results from the Fermilab D0 and E706 experiments to explain how the production rate and energy spectrum of photons produced during proton collisions helped to clarify how the energy inside the proton is shared between quarks and gluons.

  18. Intern Spotlight: Kevin Banks | Argonne National Laboratory

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

    Kevin Banks is a freshman at the Milwaukee School of Engineering, where he studies biomedical engineering. As an intern within the Chicago Scholars Argonne Future Research...

  19. High Performance Builder Spotlight: Green Coast Enterprises ...

    Energy Savers [EERE]

    Solutions for New Homes: Green Coast Enterprises, New Orleans, Louisiana Building America Best Practices Series Volume 15: 40% Whole-House Energy Savings in the Hot-Humid ...

  20. Employee Spotlight: Laura McClellan

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

    helping people in extreme poverty. August 23, 2016 Laura McClellan Laura McClellan Laura McClellan Laura McClellan "For people in extreme poverty, the first thing that helps is ...

  1. Shining a spotlight on intact proteins

    SciTech Connect (OSTI)

    Pasa-Tolic, Ljiljana; Masselon, Christophe

    2014-05-01

    Cells react to cues from their environment using various mechanisms that include changes in metabolites, gene expression, protein binding partners, protein localization, and protein posttranslational modifications (PTMs), all of which contribute to altered cellular signatures that enable appropriate cellular responses. Given the seemingly infinite number of mechanisms available to affect protein function and modulate biological processes, the question arises as to how cells manage to interpret protein readouts to accomplish the appropriate cell-type specific response to a particular stimulus.

  2. Employee Spotlight: Jennifer Hogan | Argonne National Laboratory

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

    --Photosynthesis & biomimetics -Materials science --Complex oxides --Nanoscience --Materials simulation & theory --Surface & interface studies --Tribology -Mathematics,...

  3. Solar Decathlon Technology Spotlight: Structural Insulated Panels...

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

    Structural insulated panels (SIPs) are prefabricated structural elements used to build walls, ceilings, floors, and roofs. Made of foam insulation sandwiched between two layers of ...

  4. High Performance Builder Spotlight: Scott Homes Inc.

    SciTech Connect (OSTI)

    2011-01-01

    Scott Homes worked with DOE Building America research partner Washington State University Extension Energy Program on a home in Olympia, WA, that achieved a HERS index score of 51.

  5. High Performance Builder Spotlight: Baldwin Homes Inc.

    SciTech Connect (OSTI)

    2011-01-01

    Baldwin Homes of Arnold, Maryland, built a HERS 55 Builders Challenge-certified house as an “Eco-Model” home to showcase 69 green and energy-efficient features.

  6. High Performance Builder Spotlight: David Weekley Homes

    SciTech Connect (OSTI)

    2011-01-01

    This fact sheet gives an overview of David Weekley Homes building approach, which qualifed over 1,100 homes in DOE's Builders Challenge in 2010.

  7. High Performance Builder Spotlight: Treasure Homes Inc.

    SciTech Connect (OSTI)

    2011-01-01

    Treasure Homes, Inc., achieved a HERS rating of 46 without PV on its prototype “Gem” home, located on the shores of Lake Michigan in northern Indiana, thanks in part to training received from a Building America partner, the National Association of Home Builders Research Center.

  8. High Performance Builder Spotlight: Imagine Homes

    SciTech Connect (OSTI)

    2011-01-01

    Imagine Homes, working with the DOE's Building America research team member IBACOS, has developed a system that can be replicated by other contractors to build affordable, high-performance homes. Imagine Homes has used the system to produce more than 70 Builders Challenge-certified homes per year in San Antonio over the past five years.

  9. High Performance Builder Spotlight: Clifton View Homes

    SciTech Connect (OSTI)

    2011-01-01

    Clifton View Homes’s remodel of a 1962 rambler, on Whidbey Island in Washington State, cut energy costs by two-thirds.

  10. Employee Spotlight: José Valdez

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

    José Valdez June 24, 2014 Most evenings, and certainly most weekends, find José Valdez in his garage, intensely focused on his hobby of refurbishing classic cars, preferably from the 1930s to early 1960s. By day a technician in the Nuclear Engineering and Nonproliferation Division, Valdez enjoys all aspects of the car restoration process, from finding an old, beat-up wreck sitting neglected in someone's backyard to putting the poor thing on his jack stand to see how much work it will take to

  11. Employee Spotlight: Laura McClellan

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

    Laura McClellan August 23, 2016 Lending a helping hammer Under a soaring blue African sky, Laura McClellan of the Manager of Functions division office (MOF-DO) stood with other Habitat for Humanity volunteers in a line like a bucket brigade, passing along cement blocks to the skilled local masons raising the walls of a new house. When she could spare a moment, Laura would soak up the view of backcountry Lesotho, a nation landlocked by South Africa. Mesas and canyons stretched into the distance

  12. Solar Decathlon Technology Spotlight: Structural Insulated Panels |

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

    Energy Solar Decathlon 2011 at West Potomac Park Solar Decathlon 2011 at West Potomac Park Program Features Government Officials, Students and Foreign Dignitaries WASHINGTON, DC - A ceremony on Thursday featuring U.S. government officials, students, foreign dignitaries and event sponsors will officially open the solar village of the U.S. Department of Energy Solar Decathlon 2011 at the National Mall's West Potomac Park. WHO: Arun Majumdar, Senior Advisor to the Secretary, U.S. Department of

  13. spotlight1115 | netl.doe.gov

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

    NETL Director Grace Bochenek told them that, contrary to some perceptions, the game is not over for coal and fossil energy and, with the innovation that continues at...

  14. LANFILGAS(sm) process. Technology spotlight report

    SciTech Connect (OSTI)

    1995-08-01

    The United States is facing a garbage crisis. Several areas of the country have already run out of landfill space, and recent studies indicate that many other areas will be experiencing the same problem with the next ten years. Institute of Gas Technology (IGT) has patented an advanced biogasification technology called LANFILGAS that accelerates the stabilization of landfills through anaerobic composting and recovers the methane gas for its energy value. Anaerobic composting, or digestion, is a natural process that takes place in every landfill. It is generally uncontrolled, however, and can take up to 30 years to stabilize a landfill.

  15. State and Local Spotlight – March 2016

    Broader source: Energy.gov [DOE]

    A monthly update from EERE's Weatherization and Intergovernmental Programs Office (WIP) for state, local, and K-12 officials featuring resources to advance successful, high-impact, and long-lasting clean energy policies, programs, and projects.

  16. State and Local Spotlight- June 2016

    Office of Energy Efficiency and Renewable Energy (EERE)

    A monthly update from EERE's Weatherization and Intergovernmental Programs Office (WIP) for state, local, and K-12 officials featuring resources to advance successful, high-impact, and long-lasting clean energy policies, programs, and projects.

  17. State and Local Spotlight- May 2016

    Broader source: Energy.gov [DOE]

    A monthly update from EERE's Weatherization and Intergovernmental Programs Office (WIP) for state, local, and K-12 officials featuring resources to advance successful, high-impact, and long-lasting clean energy policies, programs, and projects.

  18. State and Local Spotlight- February 2016

    Broader source: Energy.gov [DOE]

    A monthly update from EERE's Weatherization and Intergovernmental Programs Office (WIP) for state, local, and K-12 officials featuring resources to advance successful, high-impact, and long-lasting clean energy policies, programs, and projects.

  19. Employee Spotlight: Beth Drewniak | Argonne National Laboratory

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

    Contest --Science Careers in Search of Women -Site environmental protection --Site waste management -Site sustainability Operations -Business diversity -Technology transfer...

  20. Doe Sustainability SPOtlight - 2014 Sustainability Awards

    Energy Savers [EERE]

    ... of Energy Sustainability Awards CHANGE AGENT An individual (or group of individuals) ... group actions, tracking progress against objectives, and keeping federal staff engaged. ...

  1. Employee Spotlight: Ali Erdemir | Argonne National Laboratory

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

    Ali Erdemir Share Topic Operations Business diversity Human Resources Programs Materials science Nanoscience Tribology...

  2. State and Local Spotlight – July 2016

    Broader source: Energy.gov [DOE]

    A monthly update from EERE's Weatherization and Intergovernmental Programs Office (WIP) for state, local, and K-12 officials featuring resources to advance successful, high-impact, and long-lasting clean energy policies, programs, and projects.

  3. State and Local Spotlight – July 2016

    Broader source: Energy.gov [DOE]

    A monthly update from EERE's Weatherization and Intergovernmental Programs Office (WIP) for state, local, and K-12 officials featuring resources to advance successful, high-impact, and long-lasting...

  4. Employee Spotlight: Ann Schlenker | Argonne National Laboratory

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

    Description nn Schlenker, Director of the Center for Transportation Research, discusses working and mentoring at Argonne. Duration 1:48 Topic Energy Energy efficiency Vehicles...

  5. Intern Spotlight: Gabrielle Kane | Argonne National Laboratory

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

    the different potential accidents. For example, maybe the vent is blocked with trash debris or there is a backflow from the sump pump. I created a fault tree to organize...

  6. Employee Spotlight: Ali Erdemir | Argonne National Laboratory

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

    to learn how to actually do research and adapt a very high-caliber research culture.'" To watch the video, click on the image at right. Ali Erdemir is an Argonne...

  7. Employee Spotlight: Carolyn Phillips | Argonne National Laboratory

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

    Share Topic Operations Human Resources Diversity Programs Mathematics, computing, & ... & interface studies --Tribology -Mathematics, computing, & computer science --Cloud ...

  8. State and Local Spotlight – April 2016

    Broader source: Energy.gov [DOE]

    A monthly update from EERE's Weatherization and Intergovernmental Programs Office (WIP) for state, local, and K-12 officials featuring resources to advance successful, high-impact, and long-lasting clean energy policies, programs, and projects.

  9. Ultraviolet GaN photodetectors on Si via oxide buffer heterostructures with integrated short period oxide-based distributed Bragg reflectors and leakage suppressing metal-oxide-semiconductor contacts

    SciTech Connect (OSTI)

    Szyszka, A. E-mail: adam.szyszka@pwr.wroc.pl; Haeberlen, M.; Storck, P.; Thapa, S. B.; Schroeder, T.

    2014-08-28

    Based on a novel double step oxide buffer heterostructure approach for GaN integration on Si, we present an optimized Metal-Semiconductor-Metal (MSM)-based Ultraviolet (UV) GaN photodetector system with integrated short-period (oxide/Si) Distributed Bragg Reflector (DBR) and leakage suppressing Metal-Oxide-Semiconductor (MOS) electrode contacts. In terms of structural properties, it is demonstrated by in-situ reflection high energy electron diffraction and transmission electron microscopy-energy dispersive x-ray studies that the DBR heterostructure layers grow with high thickness homogeneity and sharp interface structures sufficient for UV applications; only minor Si diffusion into the Y{sub 2}O{sub 3} films is detected under the applied thermal growth budget. As revealed by comparative high resolution x-ray diffraction studies on GaN/oxide buffer/Si systems with and without DBR systems, the final GaN layer structure quality is not significantly influenced by the growth of the integrated DBR heterostructure. In terms of optoelectronic properties, it is demonstrated thatwith respect to the basic GaN/oxide/Si system without DBRthe insertion of (a) the DBR heterostructures and (b) dark current suppressing MOS contacts enhances the photoresponsivity below the GaN band-gap related UV cut-off energy by almost up to two orders of magnitude. Given the in-situ oxide passivation capability of grown GaN surfaces and the one order of magnitude lower number of superlattice layers in case of higher refractive index contrast (oxide/Si) systems with respect to classical III-N DBR superlattices, virtual GaN substrates on Si via functional oxide buffer systems are thus a promising robust approach for future GaN-based UV detector technologies.

  10. Correlated-Intensity velocimeter for Arbitrary Reflector

    DOE Patents [OSTI]

    Wang, Zhehui; Luo, Shengnian; Barnes, Cris W.; Paul, Stephen F.

    2008-11-11

    A velocimetry apparatus and method comprising splitting incoming reflected laser light and directing the laser light into first and second arms, filtering the laser light with passband filters in the first and second arms, one having a positive passband slope and the other having a negative passband slope, and detecting the filtered laser light via light intensity detectors following the passband filters in the first and second arms

  11. Ideal light concentrators with reflector gaps

    DOE Patents [OSTI]

    Winston, Roland (Chicago, IL)

    1980-01-01

    A cylindrical or trough-like radiant energy concentration and collection device is provided. The device includes an energy absorber, a glazing enveloping the absorber and a reflective wall. The ideal contour of the reflective wall is determined with reference to a virtual absorber and not the actual absorber cross section.

  12. The Sandia Wave Reflector - Energy Innovation Portal

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

    Reduces design time required for antennas needed in various environments Applications and Industries Voice Communications Mobile Robots Tracking Devices Inventory Reconciliation...

  13. Advanced Manufacture of Reflectors (Fact Sheet)

    SciTech Connect (OSTI)

    Not Available

    2012-09-01

    The University of Arizona is one of the 2012 SunShot CSP R&D awardees for their advanced collectors. This fact sheet explains the motivation, description, and impact of the project.

  14. Solar module having reflector between cells

    DOE Patents [OSTI]

    Kardauskas, Michael J.

    1999-01-01

    A photovoltaic module comprising an array of electrically interconnected photovoltaic cells disposed in a planar and mutually spaced relationship between a light-transparent front cover member in sheet form and a back sheet structure is provided with a novel light-reflecting means disposed between adjacent cells for reflecting light falling in the areas between cells back toward said transparent cover member for further internal reflection onto the solar cells. The light-reflecting comprises a flexible plastic film that has been embossed so as to have a plurality of small V-shaped grooves in its front surface, and a thin light-reflecting coating on said front surface, the portions of said coating along the sides of said grooves forming light-reflecting facets, said grooves being formed so that said facets will reflect light impinging thereon back into said transparent cover sheet with an angle of incidence greater than the critical angle, whereby substantially all of the reflected light will be internally reflected from said cover sheet back to said solar modules, thereby increasing the current output of the module.

  15. Better Buildings - Spotlight on Portland, Oregon; Financing and...

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

    ... more comprehensive scope of work." -Derek Smith, CEWO Executive Director Provide ... According to CEWO Executive Director Derek Smith, "Our incentive structure gets customers ...

  16. Building America Research Teams: Spotlight on Home Innovation...

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

    third-party testing and certification credentials, and longstanding relationship with industry to advance the performance, quality, and affordability of new and existing homes. ...

  17. Spotlight on Rutland County, Vermont: How Local Ties Lead to...

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

    Rutland County Summary of Reported Data Better Buildings -- Concierge Programs for Contractors -- They're Not Just for Consumers anymore Interview: LaborWorks@NeighborWorks ...

  18. High Performance Builder Spotlight: G.W. Robinson

    SciTech Connect (OSTI)

    2011-01-01

    G.W. Robinson of Gainesville, Florida, worked with Building America partners Florida Solar Energy Center and Florida HERO to achieve a true net zero energy home in 2010.

  19. High Performance Builder Spotlight: LifeStyle Homes

    SciTech Connect (OSTI)

    2011-01-01

    LifeStyle Homes of Melbourne, Florida, is aiming for affordable net zero energy homes with help from Building America research partner Florida Solar Energy Center.

  20. Better Buildings: Workforce, Spotlight on Maine: Contractor Sales...

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

    program webinars for contractors, and works with partners to continue offering ... The program conducted a nationwide search and selected Dale Carnegie Training, a ...

  1. High Performance Builder Spotlight: Green Coast Enterprises- New Orleans, Louisiana

    Broader source: Energy.gov [DOE]

    This four-page case study describes Green Coast Enterprises efforts to rebuild hurricane-ravaged New Orleans through Project Home Again.

  2. Better Buildings: Workforce: Spotlight on Fayette County, Pennsylvania...

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

    ... weatherization program to households with incomes greater than 200% above poverty level. ... existing efforts of its Pathways Out of Poverty 4 program, which offers introductory ...

  3. Spotlight on Key Program Strategies from the Better Buildings...

    Office of Environmental Management (EM)

    ... References section lists all of the data sources the evaluation team used for this report. ... While these options did not include as detailed and specific estimates of potential energy ...

  4. High Performance Builder Spotlight: Green Coast Enterprises, New Orleans, Louisiana

    SciTech Connect (OSTI)

    Pacific Northwest National Laboratory

    2010-09-01

    This case study describes Green Coast Enterprises efforts to rebuild hurricane-ravaged New Orleans through Project Home Again.

  5. High Performance Builder Spotlight: GreenCraft, Lewisville, TX

    SciTech Connect (OSTI)

    2011-01-01

    In October and November 2009, the TimberCreek Zero Energy House in Lewisville, Texas, opened as a Building America Demonstration House. The 2,538-foot,three-bedroom, 2½-bath custom-built home showed a home energy rating score (HERS) of 56 without the solar photovoltaics and a HERS score of 1 with PV.

  6. High Performance Builder Spotlight: Wathen Castanos Hybrid Homes

    SciTech Connect (OSTI)

    2011-01-01

    Wathen Castanos Hybrid Homes of Fresno, CA, has worked with Building America team member IBACOS to apply building science to production homes. Even without solar panels, the company’s Jordan model exceeds California’s building efficiency standard by 36%.

  7. 1994 OTC spotlights fall on technology, world operations

    SciTech Connect (OSTI)

    Not Available

    1994-05-09

    Expanding offshore technical capabilities and growing international cooperation were the key-notes last week at the 26th Offshore Technology Conference (OTC) in Houston. Sponsored by the Society of Petroleum Engineers, sessions heard many of the 244 technical papers presented this year focus on field-ready technology considered crucial to more efficient, safer, environmentally sound offshore oil and gas operations. Economic development of satellite and marginal fields was the topic at special technical sessions on the conference's first two mornings. Three dimensional seismic technology was thoroughly discussed in a day-long series of papers presented during the gathering's third day. OTC 1994 topical luncheons included descriptions by Shell Offshore Inc. of its record setting auger field development project in the Gulf of Mexico, offshore turnkey drilling by a panel of drilling contractors, and the international exploration and production alliance formed in 1990 by BP Exploration and Den norske stats oljeselskap AS. Highlights of the melting are discussed.

  8. Thermal reclamation of used blast grit. Technology spotlight report

    SciTech Connect (OSTI)

    1995-08-01

    Naval shipyards and other domestic port facilities generate thousands of tons of used blast grit annually. There are also thousands of steel bridges in the United States on a repaint schedule that requires grit blasting for surface preparation. All the used grit, along with the paint residue it contains, is currently disposed of in landfills. Cleaning and recycling used blast grit is an attractive alternative. Institute of Gas Technology (IGT) has developed a fluidized-bed sand calciner that is well suited for cleaning and recycling used blast grit. Essentially, IGT researchers applied a transfer/adaptation of fluidized-bed calcination originally developed for the reclamation of foundry sand. The calciner has a patented sloped-grid design that enhances the combustion of paint residues and promotes the isolation of reusable material.

  9. High Performance Builder Spotlight: Clifton View Homes II

    SciTech Connect (OSTI)

    2011-01-01

    Clifton View Homes builds superefficient homes that qualify for DOE’s Builders Challenge like this home on Whidbey Island that achieves a 57 on the HERS index.

  10. Builders Challenge High Performance Builder Spotlight Tommy Williams Homes

    SciTech Connect (OSTI)

    2010-02-05

    Builders Challenge fact sheet highlighting performance and energy-efficiency features of Tommy Williams Homes, Longleaf case study, Gainesville, FL

  11. Healthcare Energy: Spotlight on Lighting and Other Electric Loads...

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

    See below for a few highlights from monitoring lighting and other electric loads. Lighting and Other Electric Loads at the Gray Building For the Massachusetts General Hospital Gray ...

  12. Healthcare Energy: Spotlight on Reheat and Heating | Department...

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

    the Massachusetts General Hospital (MGH) Gray Building and 52.0 kBtuft2-yr at the State ... Estimated Breakdown of Reheat and Heating Energy Use At the MGH Gray Building, from ...

  13. Healthcare Energy: Spotlight on Fans and Pumps | Department of...

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

    At the Massachusetts General Hospital (MGH) Gray Building, supply, returnexhaust, and ... Annual site EUIs for pumps were estimated to be 6.7 kBtuft2-yr at the MGH Gray Building ...

  14. DOE Sustainability SPOtlight: Special Edition 2013 DOE Sustainability Awards

    Office of Energy Efficiency and Renewable Energy (EERE)

    Newsletter highlights the recipients of the U.S. Department of Energy (DOE) Sustainability Performance Office (SPO) 2013 Sustainability Awards.

  15. Building America Research Teams: Spotlight on Alliance for Residential...

    Energy Savers [EERE]

    optimization, ARBI applies advanced modeling and analysis techniques to identify optimal, cost-effective strategies to achieve large-scale reduction of residential energy use. ...

  16. High Performance Builder Spotlight: KB Home GreenHouse

    SciTech Connect (OSTI)

    2011-01-01

    Located in the Lake Burden community in Windermere, FL, the KB Home GreenHouse is expected to produce as much energy as it consumes.

  17. State and Local Spotlight - August 2016 | Department of Energy

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

    STATE ENERGY PROGRAM NOTICE 13-001 EECBG PROGRAM NOTICE 13-001 EFFECTIVE DATE: MARCH 21, 2013 SUBJECT: GUIDANCE FOR RETURNING INTEREST EARNED PURPOSE To provide an overview to the Department of Energy' s (DOE) State Energy Program (SEP) and Energy Efficiency and Conservation Block Grant (EECBG) Program prime recipients (hereafter refe1Ted to as grantees) on guidance for the procedural requirements of returning interest earned on advanced Federal funds . This guidance does not create new

  18. Workers' Spotlight Newsletter - Issue 1 | Department of Energy

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

    Director's Note National Day of Remembrance Secure Electronic Records Transfer (SERT) Early Lung Cancer Detection What's Going on Around the Complex (Richland) NIOSH Advisory Board ...

  19. Isoprenoid biosynthesis in eukaryotic phototrophs: A spotlight on algae

    SciTech Connect (OSTI)

    Lohr M.; Schwender J.; Polle, J. E. W.

    2012-04-01

    Isoprenoids are one of the largest groups of natural compounds and have a variety of important functions in the primary metabolism of land plants and algae. In recent years, our understanding of the numerous facets of isoprenoid metabolism in land plants has been rapidly increasing, while knowledge on the metabolic network of isoprenoids in algae still lags behind. Here, current views on the biochemistry and genetics of the core isoprenoid metabolism in land plants and in the major algal phyla are compared and some of the most pressing open questions are highlighted. Based on the different evolutionary histories of the various groups of eukaryotic phototrophs, we discuss the distribution and regulation of the mevalonate (MVA) and the methylerythritol phosphate (MEP) pathways in land plants and algae and the potential consequences of the loss of the MVA pathway in groups such as the green algae. For the prenyltransferases, serving as gatekeepers to the various branches of terpenoid biosynthesis in land plants and algae, we explore the minimal inventory necessary for the formation of primary isoprenoids and present a preliminary analysis of their occurrence and phylogeny in algae with primary and secondary plastids. The review concludes with some perspectives on genetic engineering of the isoprenoid metabolism in algae.

  20. Better Buildings: Workforce: Spotlight on Portland, Oregon: Making...

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

    Additionally, 40% of projects completed under the program are the result of contractor ... And after observing contractors' varying levels of technical experience and business ...

  1. EM Update Newsletter Spotlights River Corridor Cleanup at Hanford Site

    Broader source: Energy.gov [DOE]

    RICHLAND, Wash. – In this issue of the EM Update newsletter, EM marks the many accomplishments the Richland Operations Office and its contractors have achieved in cleanup along the Columbia River corridor at the Hanford Site. This year marked the 10th anniversary of the River Corridor Closure Contract, the nation’s largest environmental cleanup closure project, managed by Washington Closure Hanford. The work has involved projects to clean up existing contamination and waste sites near the river, preventing contamination from reaching it, and cocooning or demolishing hundreds of structures no longer in use, including former reactors along the river that helped create materials for the U.S. nuclear weapons program.

  2. SSL in America: Spotlight on SAES Pure Gas

    Energy Savers [EERE]

    Pure Gas does all of its manufacturing at its headquarters, which is located in beautiful San Luis Obispo, about halfway between Los Angeles and San Francisco and just a few...

  3. ARPA-E Technology Showcase: Project Spotlight | Department of...

    Energy Savers [EERE]

    ... Jim Lalonde explained that by using customized carbonic anhydrase enzymes, coal-fired power plants can expect to reduce the energy needed to capture CO2 within the plant by 30%. ...

  4. Determining thermochemical properties of halogenated metals:...

    Office of Scientific and Technical Information (OSTI)

    metals: On enabling the rapid assessment of agent defeat formulations You ... Country of Publication: United States Language: English Subject: 37 INORGANIC, ORGANIC, ...

  5. Determining thermochemical properties of halogenated metals:...

    Office of Scientific and Technical Information (OSTI)

    Country of Publication: United States Language: English Subject: 37 INORGANIC, ORGANIC, PHYSICAL AND ANALYTICAL CHEMISTRY; 37 INORGANIC, ORGANIC, PHYSICAL AND ANALYTICAL CHEMISTRY; ...

  6. Determining thermochemical properties of halogenated metals:...

    Office of Scientific and Technical Information (OSTI)

    Country of Publication: United States Language: English Subject: 37 INORGANIC, ORGANIC, PHYSICAL AND ANALYTICAL CHEMISTRY Word Cloud More Like This Full Text preview image File ...

  7. Seeing Green: 1663 Science and Technology Magazine | Los National...

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

    Preparing the Primordial Soup A RECIPE FOR PREBIOTIC METABOLISM Spotlight THE (LIGHTWEIGHT) HEAVY HITTER Spotlight SOLAR SYSTEM SURPRISE Spotlight REACTION TO FUKUSHIMA Spotlight ...

  8. ZPR-3 Assembly 11 : A cylindrical sssembly of highly enriched uranium and depleted uranium with an average {sup 235}U enrichment of 12 atom % and a depleted uranium reflector.

    SciTech Connect (OSTI)

    Lell, R. M.; McKnight, R. D.; Tsiboulia, A.; Rozhikhin, Y.; National Security; Inst. of Physics and Power Engineering

    2010-09-30

    Over a period of 30 years, more than a hundred Zero Power Reactor (ZPR) critical assemblies were constructed at Argonne National Laboratory. The ZPR facilities, ZPR-3, ZPR-6, ZPR-9 and ZPPR, were all fast critical assembly facilities. The ZPR critical assemblies were constructed to support fast reactor development, but data from some of these assemblies are also well suited for nuclear data validation and to form the basis for criticality safety benchmarks. A number of the Argonne ZPR/ZPPR critical assemblies have been evaluated as ICSBEP and IRPhEP benchmarks. Of the three classes of ZPR assemblies, engineering mockups, engineering benchmarks and physics benchmarks, the last group tends to be most useful for criticality safety. Because physics benchmarks were designed to test fast reactor physics data and methods, they were as simple as possible in geometry and composition. The principal fissile species was {sup 235}U or {sup 239}Pu. Fuel enrichments ranged from 9% to 95%. Often there were only one or two main core diluent materials, such as aluminum, graphite, iron, sodium or stainless steel. The cores were reflected (and insulated from room return effects) by one or two layers of materials such as depleted uranium, lead or stainless steel. Despite their more complex nature, a small number of assemblies from the other two classes would make useful criticality safety benchmarks because they have features related to criticality safety issues, such as reflection by soil-like material. ZPR-3 Assembly 11 (ZPR-3/11) was designed as a fast reactor physics benchmark experiment with an average core {sup 235}U enrichment of approximately 12 at.% and a depleted uranium reflector. Approximately 79.7% of the total fissions in this assembly occur above 100 keV, approximately 20.3% occur below 100 keV, and essentially none below 0.625 eV - thus the classification as a 'fast' assembly. This assembly is Fast Reactor Benchmark No. 8 in the Cross Section Evaluation Working Group

  9. Structural, optical and waveguiding properties improvement of SiO{sub 2}/TiO{sub 2} Bragg reflectors processed by the sol–gel method under the effect of Ni-doped TiO{sub 2} and annealing duration

    SciTech Connect (OSTI)

    Sedrati, H.; Bensaha, R.; Bensouyad, H.; Miska, P.; Robert, S.

    2014-09-15

    Highlights: • The formation of anatase phase only, whatever are Ni content and annealing duration. • Transmission and PL spectra redshifted with Ni content and annealing duration. • PL lowering with Ni content is due to the recombination rate of electron–hole reduction. • Annealing duration increases the recombination rate and then the PL intensity rises. • Increasing Ni content improves waveguiding properties and then two TE modes appear. - Abstract: We investigated the nickel doped TiO{sub 2} layer and annealing duration effects on SiO{sub 2}/TiO{sub 2} Bragg reflectors. The films crystallize in pure anatase phase whatever is the Ni content and the annealing duration. In UV–vis-NIR analyses, variations of width, position and transmission coefficient of the stop-band were observed. The PL spectra red-shifted when the Ni content and annealing duration increased. As the annealing duration increases, an additional sharp emission peak appears around 867 nm, indicating a reduced number of defects. As Ni content increased, the M-lines spectroscopy shows two transverse electric polarization guided modes TE{sub 0} and TE{sub 1}, which indicates a decreased refractive index and an increased film thickness.

  10. Photovoltaic concentrator with plastic-film reflector. Final report

    SciTech Connect (OSTI)

    Not Available

    1982-06-01

    A 4m diameter reflective film, parabolic dish concentrator proposed for use with a photovoltaic array has been designed, fabricated, and tested. The concentrator is made from aluminized film gores (wedge shaped pieces) that are taped together along their edges to form a dish. The shape of the dish is maintained by a pressure difference between the front and back. The deep dish was designed to illuminate a cylindrical receiver populated by solar cells with a geometric concentration ratio of 145. Three full scale dishes were made in sequence, each using improvements suggested by the previous design. They were tested with a laser to determine surface errors and flux uniformity on the target.

  11. Imaging with Spherically Bent Crystals or Reflectors (Technical...

    Office of Scientific and Technical Information (OSTI)

    This type of spectrometer was thoroughly tested on NSTX and Alcator C-Mod, and its concept was recently adopted for the design of the ITER crystal spectrometers. Part II describes ...

  12. Code division multiple access signaling for modulated reflector technology

    DOE Patents [OSTI]

    Briles, Scott D.

    2012-05-01

    A method and apparatus for utilizing code division multiple access in modulated reflectance transmissions comprises the steps of generating a phase-modulated reflectance data bit stream; modifying the modulated reflectance data bit stream; providing the modified modulated reflectance data bit stream to a switch that connects an antenna to an infinite impedance in the event a "+1" is to be sent, or connects the antenna to ground in the event a "0" or a "-1" is to be sent.

  13. Convection venting lensed reflector-type compact fluorescent lamp system

    DOE Patents [OSTI]

    Pelton, B.A.; Siminovitch, M.

    1997-07-29

    Disclosed herein is a fluorescent lamp housing assembly capable of providing convection cooling to the lamp and the ballast. The lens of the present invention includes two distinct portions, a central portion and an apertured portion. The housing assembly further includes apertures so that air mass is able to freely move up through the assembly and out ventilation apertures. 12 figs.

  14. Development of Advanced Polymeric Reflector for CSP Applications - Final Report

    SciTech Connect (OSTI)

    Treglio, Richard, T; Boyle, Keith, A; Henderson, Hildie

    2013-03-28

    This project attempted to deposit extremely thick and dense protective barrier onto a mirror film stack with a PET substrate. The target thickness was very high for thin film products; particularly since large areas and long production lengths of film are needed to make the final product economic. The technical investigations in this project centered on maintaining a quality barrier (i.e. dense film) while evaporating alumina with a high deposition rate onto a low cost PET substrate. The project found that the proposed configuration, particularly direct ion bombardment, provides too narrow a solution space to effectively and economically produce the ASRM attempted. The initial project goals were met when depositing on a limited width and at a modest rate. However, expanding to wide deposition at aggressive deposition rates did not produce consistent film quality. Economic viability drives the process to maximize deposition rate. The current system configuration has a limiting upper rate threshold that does not appear economically viable. For future work, alternate approaches seem needed to address the challenges encountered in the scale-up phase of this project.

  15. Recovery Act: Low-Cost, Highly Lambertian Reflector Composite...

    Office of Scientific and Technical Information (OSTI)

    Close Cite: Bibtex Format Close 0 pages in this document matching the terms "" Search For Terms: Enter terms in the toolbar above to search the full text of this document for ...

  16. Imaging with Spherically Bent Crystals or Reflectors (Technical...

    Office of Scientific and Technical Information (OSTI)

    Close Cite: Bibtex Format Close 0 pages in this document matching the terms "" Search For Terms: Enter terms in the toolbar above to search the full text of this document for ...

  17. Advanced Reflector and Absorber Materials (Fact Sheet), Thermal...

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

    coating developed in the laboratory was recently commercialized, based on its excellent prop- erties of high absorption, low emittance, and resistance to oxidation. Contact Cheryl...

  18. Beam spoiling a reflector antenna with conducting shim. (Technical...

    Office of Scientific and Technical Information (OSTI)

    science and technology. A paper copy of this document is also available for sale to the public from the National Technical Information Service, Springfield, VA at www.ntis.gov. A...

  19. Radar cross section of triangular trihedral reflector with extended...

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

    Report Number(s): SAND2009-2993 TRN: US201016%%1855 DOE Contract Number: AC04-94AL85000 Resource Type: Technical Report Research Org: Sandia National Laboratories Sponsoring Org: ...

  20. Angle amplifying optics using plane and ellipsoidal reflectors

    DOE Patents [OSTI]

    Glass, Alexander J.

    1977-01-01

    An optical system for providing a wide angle input beam into ellipsoidal laser fusion target illumination systems. The optical system comprises one or more pairs of centrally apertured plane and ellipsoidal mirrors disposed to accept the light input from a conventional lens of modest focal length and thickness, to increase the angular divergence thereof to a value equivalent to that of fast lenses, and to direct the light into the ellipsoidal target illumination system.

  1. Prisms with total internal reflection as solar reflectors

    DOE Patents [OSTI]

    Rabl, Arnulf; Rabl, Veronika

    1978-01-01

    An improved reflective wall for radiant energy collection and concentration devices is provided. The wall is comprised of a plurality of prisms whose frontal faces are adjacent and which reflect the desired radiation by total internal reflection.

  2. Recovery Act: Low-Cost, Highly Lambertian Reflector Composite...

    Office of Scientific and Technical Information (OSTI)

    Country of Publication: United States Language: English Subject: 32 ENERGY CONSERVATION, CONSUMPTION, AND UTILIZATION; 36 MATERIALS SCIENCE Word Cloud More Like This Full Text ...

  3. Convection venting lensed reflector-type compact fluorescent lamp system

    DOE Patents [OSTI]

    Pelton, Bruce A.; Siminovitch, Michael

    1997-01-01

    Disclosed herein is a fluorescent lamp housing assembly capable of providing convection cooling to the lamp and the ballast. The lens of the present invention includes two distinct portions, a central portion and an apertured portion. The housing assembly further includes apertures so that air mass is able to freely move up through the assembly and out ventilation apertures.

  4. Advanced Manufacture of Reflectors- FY13 Q1

    Broader source: Energy.gov [DOE]

    This document summarizes the progress of this University of Arizona project, funded by SunShot, for the first quarter of fiscal year 2013.

  5. Advanced Manufacture of Reflectors- FY12 Q4

    Broader source: Energy.gov [DOE]

    This document summarizes the progress of this University of Arizona project, funded by SunShot, for the fourth quarter of fiscal year 2012.

  6. The first mixed-halide zirconium cluster compounds: Zr{sub 6}Cl{sub 1.6}I{sub 10.4}Be, Zr{sub 6}Cl{sub 1.3}I{sub 10.7}B, and Zr{sub 6}Cl{sub 11.5}I{sub 1.5}B. Matrix effects and halogen substitution in compact network structures

    SciTech Connect (OSTI)

    Koeckerling, M.; Qi, R.Y.; Corbett, J.D.

    1996-03-13

    Investigations of the effect of halogen size on structure stability have been conducted in well-reduced and heavily interbridged zirconium chloride-iodide cluster systems. The title compounds are obtained in good yields from reactions of Zr, ZrCl{sub 4}, ZrI{sub 4}, and B or Be in sealed Ta tubes for {approximately} 4 weeks at 850 {degrees}C. Single-crystal diffraction at room temperature established these as Zr{sub 6}Cl{sub 1.65(4)}I{sub 10.35(4)}Be and Zr{sub 6}Cl{sub 1.27/(3)}. These are derivatives of the Zr{sub 6}I{sub 12}C and orthorhombic Zr{sub 6}Cl{sub 13}B structures, respectively, the latter containing unusual linear chains of clusters interbridged by Cl{sup i-i} that are in turn interconnected by three-bonded Cl{sup a-a-a} atoms. The random substitution of fractional Cl at specific I sites in the first two, and I for certain Cl in the third, was positionally resolved in all cases. The replacement always occurs at two-bonded X{sup i}, so that single types of halogen are left in sites that interconnected clusters and generate the three-dimensional array. Structural changes seen in both structures are specifically related to relief of X{hor_ellipsis}X crowding in the parent structure (matrix effects). Substitution of Cl for I{sup i} in the Zr{sub 6}I{sub 12}C type greatly reduces intercluster I{hor_ellipsis}I repulsions and allows, among other things, a 0.20 {Angstrom} (5.8*5) reduction in Zr-I{sup 1-i} intercluster bond lengths. Increased Cl{hor_ellipsis}I repulsions caused by I substitution in orthorhombic Zr{sub 6}Cl{sub 11.5}I{sub 1.5}B. Phase widths found are 0{le} x {le} 1.4 for Zr{sub 6}Cl{sub x}I{sub 12-x}Z (Z=B, Be) and 0 {le} x {le} 1.5 for Zr{sub 6}Cl{sub 13-x}I{sub x}B. The limit for iodine substitution in the chlorine-rich rhombohedral Zr{sub 6}Cl{sub 12-x}I{sub x}Be is about x=2.5.

  7. Nontypical iodine-halogen bonds in the crystal structure of ...

    Office of Scientific and Technical Information (OSTI)

    South Ural State Univ., Chelyabinsk (Russia) Karpov Inst. of Physical Chemistry, Moscow ... Resource Relation: Journal Name: Acta Crystallographica. Section C, Structural Chemistry ...

  8. Nontypical iodine-halogen bonds in the crystal structure of ...

    Office of Scientific and Technical Information (OSTI)

    Find in Google Scholar Find in Google Scholar Search WorldCat Search WorldCat to find libraries that may hold this journal Have feedback or suggestions for a way to improve these ...

  9. Insensitive explosive composition of halogenated copolymer and triaminotrinitrobenzene

    DOE Patents [OSTI]

    Benziger, Theodore M.

    1976-01-01

    A highly insensitive and heat resistant plastic-bonded explosive containing 90 wt % triaminotrinitrobenzene and 10 wt % of a fully saturated copolymer of chlorotrifluoroethylene and vinylidene fluoride is readily manufactured by the slurry process.

  10. Halogenated sulfidohydroboranes for nuclear medicine and boron neutron capture therapy

    DOE Patents [OSTI]

    Miura, Michiko; Slatkin, Daniel N.

    1995-10-03

    A method for performing boron neutron capture therapy for the treatment of tumors is disclosed. The method includes administering to a patient an iodinated sulfidohydroborane, a boron-10-containing compound. The site of the tumor is localized by visualizing the increased concentration of the iodine labelled compound at the tumor. The targeted tumor is then irradiated with a beam of neutrons having an energy distribution effective for neutron capture. Destruction of the tumor occurs due to high LET particle irradiation of the tissue secondary to the incident neutrons being captured by the boron-10 nuclei. Iodinated sulfidohydroboranes are disclosed which are especially suitable for the method of the invention. In a preferred embodiment, a compound having the formula Na.sub.4 B.sub.12 I.sub.11 SSB.sub.12 I.sub.11, or another pharmaceutically acceptable salt of the compound, may be administered to a cancer patient for boron neutron capture therapy.

  11. Halogenated sulfidohydroboranes for nuclear medicine and boron neutron capture therapy

    DOE Patents [OSTI]

    Miura, M.; Slatkin, D.N.

    1997-03-18

    A method for performing boron neutron capture therapy for the treatment of tumors is disclosed. The method includes administering to a patient an iodinated sulfidohydroborane, a boron-10-containing compound. The site of the tumor is localized by visualizing the increased concentration of the iodine labelled compound at the tumor. The targeted tumor is then irradiated with a beam of neutrons having an energy distribution effective for neutron capture. Destruction of the tumor occurs due to high LET particle irradiation of the tissue secondary to the incident neutrons being captured by the boron-10 nuclei. Iodinated sulfidohydroboranes are disclosed which are especially suitable for the method of the invention. In a preferred embodiment, a compound having the formula Na{sub 4}B{sub 12}I{sub 11}SSB{sub 12}I{sub 11}, or another pharmaceutically acceptable salt of the compound, may be administered to a cancer patient for boron neutron capture therapy. 1 fig.

  12. Halogenated sulfidohydroboranes for nuclear medicine and boron neutron capture therapy

    DOE Patents [OSTI]

    Miura, M.; Slatkin, D.N.

    1997-08-05

    A method for performing boron neutron capture therapy for the treatment of tumors is disclosed. The method includes administering to a patient an iodinated sulfidohydroborane, a boron-10-containing compound. The site of the tumor is localized by visualizing the increased concentration of the iodine labelled compound at the tumor. The targeted tumor is then irradiated with a beam of neutrons having an energy distribution effective for neutron capture. Destruction of the tumor occurs due to high LET particle irradiation of the tissue secondary to the incident neutrons being captured by the boron-10 nuclei. Iodinated sulfidohydroboranes are disclosed which are especially suitable for the method of the invention. In a preferred embodiment, a compound having the formula Na{sub 4}B{sub 12}I{sub 11}SSB{sub 12}I{sub 11}, or another pharmaceutically acceptable salt of the compound, may be administered to a cancer patient for boron neutron capture therapy. 1 fig.

  13. Halogenated sulfidohydroboranes for nuclear medicine and boron neutron capture therapy

    DOE Patents [OSTI]

    Miura, Michiko; Slatkin, Daniel N.

    1997-03-18

    A method for performing boron neutron capture therapy for the treatment of tumors is disclosed. The method includes administering to a patient an iodinated sulfidohydroborane, a boron-10-containing compound. The site of the tumor is localized by visualizing the increased concentration of the iodine labelled compound at the tumor. The targeted tumor is then irradiated with a beam of neutrons having an energy distribution effective for neutron capture. Destruction of the tumor occurs due to high LET particle irradiation of the tissue secondary to the incident neutrons being captured by the boron-10 nuclei. Iodinated sulfidohydroboranes are disclosed which are especially suitable for the method of the invention. In a preferred embodiment, a compound having the formula Na.sub.4 B.sub.12 I.sub.11 SSB.sub.12 I.sub.11, or another pharmaceutically acceptable salt of the compound, may be administered to a cancer patient for boron neutron capture therapy.

  14. Halogenated sulfidohydroboranes for nuclear medicine and boron neutron capture therapy

    DOE Patents [OSTI]

    Miura, Michiko; Slatkin, Daniel N.

    1997-08-05

    A method for performing boron neutron capture therapy for the treatment of tumors is disclosed. The method includes administering to a patient an iodinated sulfidohydroborane, a boron-10-containing compound. The site of the tumor is localized. by visualizing the increased concentration of the iodine labelled compound at the tumor. The targeted tumor is then irradiated with a beam of neutrons having an energy distribution effective for neutron capture. Destruction of the tumor occurs due to high LET particle irradiation of the tissue secondary to the incident neutrons being captured by the boron-10 nuclei. Iodinated sulfidohydroboranes are disclosed which are especially suitable for the method of the invention. In a preferred embodiment, a compound having the formula Na.sub.4 B.sub.12 I.sub.11 SSB.sub.12 I.sub.11, or another pharmaceutically acceptable salt of the compound, may be administered to a cancer patient for boron neutron capture therapy.

  15. Halogenated sulfidohydroboranes for nuclear medicine and boron neutron capture therapy

    DOE Patents [OSTI]

    Miura, M.; Slatkin, D.N.

    1995-10-03

    A method for performing boron neutron capture therapy for the treatment of tumors is disclosed. The method includes administering to a patient an iodinated sulfidohydroborane, a boron-10-containing compound. The site of the tumor is localized by visualizing the increased concentration of the iodine labelled compound at the tumor. The targeted tumor is then irradiated with a beam of neutrons having an energy distribution effective for neutron capture. Destruction of the tumor occurs due to high LET particle irradiation of the tissue secondary to the incident neutrons being captured by the boron-10 nuclei. Iodinated sulfidohydroboranes are disclosed which are especially suitable for the method of the invention. In a preferred embodiment, a compound having the formula Na{sub 4}B{sub 12}I{sub 11}SSB{sub 12}I{sub 11}, or another pharmaceutically acceptable salt of the compound, may be administered to a cancer patient for boron neutron capture therapy. 1 fig.

  16. Max Tech Electric HPWH with Lower GWP Halogenated Refrigerant...

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

    an integrated heat pump design model and wrapped tank model. Image credit: Oak Ridge National Laboratory. Information flow schematic for an integrated heat pump design model and ...

  17. Inert gas rejection device for zinc-halogen battery systems

    DOE Patents [OSTI]

    Hammond, Michael J.; Arendell, Mark W.

    1981-01-01

    An electrolytic cell for separating chlorine gas from other (foreign) gases, having an anode, a cathode assembly, an aqueous electrolyte, a housing, and a constant voltage power supply. The cathode assembly is generally comprised of a dense graphite electrode having a winding channel formed in the face opposing the anode, a gas impermeable (but liquid permeable) membrane sealed into the side of the cathode electrode over the channel, and a packing of graphite particles contained in the channel of the cathode electrode. The housing separates and parallelly aligns the anode and cathode assembly, and provides a hermetic seal for the cell. In operation, a stream of chlorine and foreign gases enters the cell at the beginning of the cathode electrode channel. The chlorine gas is dissolved into the electrolyte and electrochemically reduced into chloride ions. The chloride ions disfuse through the gas impermeable membrane, and are electrochemically oxidized at the anode into purified chlorine gas. The foreign gases do not participate in the above electrochemical reactions, and are vented from the cell at the end of the cathode electrode channel.

  18. Gas Phase Reactions between Fuel Molecules and Halogens: A Review...

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

    Annual Report Combustion Energy Frontier Research Center Princeton, NJ Sept. 23, 2010 Truhlar group University of Minnesota Practical methods for including torsional anharmonicity ...

  19. SSL in America | Department of Energy

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

    on NEXT Lighting May 7, 2013: Spotlight on Cree Mar. 1, 2013: Spotlight on White Optics Jan. 24, 2013: Spotlight on Plasma-Therm LLC 2012 Dec. 5, 2012: Spotlight on Soraa ...

  20. Builders Challenge High Performance Builder Spotlight - NextGen Home, Las Vegas, Nevada

    SciTech Connect (OSTI)

    None

    2009-01-01

    Building America Builders Challenge fact sheet on the NextGen demo home built in Las Vegas. The home has a Home Energy Rating System (HERS) index score of 44 with R-40 spray foam attic insulation, R-40 insulated concrete walls, and a 4kW DC solar laminate

  1. Builders Challenge High Performance Builder Spotlight - Martha Rose Construction, Inc., Seattle, Washington

    SciTech Connect (OSTI)

    2008-01-01

    Building America/Builders Challenge fact sheet on Martha Rose Construction, an energy-efficient home builder in marine climate using the German Passiv Haus design, improved insulation, and solar photovoltaics.

  2. Builders Challenge High Performance Builder Spotlight - Rural Development Inc., Turner Falls, Massachusetts

    SciTech Connect (OSTI)

    2008-01-01

    Building America/Builders Challenge fact sheet on Rural Development Inc, an energy-efficient home builder in cold climate using radiant floor heat, solar hot water, and PV. Examines cost impacts.

  3. EECBG Success Story: The City of Los Angeles Has Its Spotlight...

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

    Related Articles Ajani Stewart was close to losing his job as environmental coordinator for the city of Miami before a change to the city's EECBG allowed Stewart to retain his ...

  4. Award Spotlight Could Return to EM-Developed Technology for Tracking...

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

    ... DOE also briefed President Obama on the technology for last year's World Nuclear Security Summit in Seoul, Republic of Korea. Nextgov's Bold Awards honor federal employees who have ...

  5. 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.

  6. Oct. 29 Webinar to Spotlight DOE Energy Programs for Tribes and First Tribally Owned Hydroelectric Facility

    Office of Energy Efficiency and Renewable Energy (EERE)

    Attend the final webinar in the 2014 Tribal Renewable Energy Series on Wednesday, Oct. 29, to learn more about how all the pieces of the tribal energy development puzzle fit together—plus suggest topics of interest for the 2014 series.

  7. Better Buildings: Financing and Incentives: Spotlight on Maine: Transition to a Sustainable Level of Incentives

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

    betterbuildings.energy.gov/neighborhoods 1 June 2012 Financing and Incentives Key Takeaways ■■ Maintain a base level of demand in the absence of rebates by providing mul- tiple customer financing options ■■ Create a sense of urgency and drive customer demand with incentive deadlines ■■ Design incentives to achieve specific goals The Better Buildings Neighborhood Program is a U.S. Energy Department program that is improving lives and communities across the country through energy

  8. Building America Research Teams: Spotlight on ARIES and NorthernSTAR...

    Energy Savers [EERE]

    ... NorthernSTAR's whole-house overcoat technique is an external insulation for existing houses that uses a peel-and-stick membrane as an air and water barrier and then layers of ...

  9. Builders Challenge High Performance Builder Spotlight: Tim O'Brien Homes, Waukesha, Wisconsin

    SciTech Connect (OSTI)

    2009-12-22

    This Building America Builders Challenge home features efficiency upgrades of geothermal heat pump, PV, solar hot water, and added insulation.

  10. Builders Challenge High Performance Builder Spotlight: Yavapai College, Chino Valley, Arizona

    SciTech Connect (OSTI)

    2009-12-22

    Building America Builders Challenge fact sheet on Yavapai College of Chino Valley, Arizona. These college students built a Building America Builders Challenge house that achieved the remarkably low HERS score of -3 and achieved a tight building envelope.

  11. Office of Worker Screening and Compensation Support Workers' Spotlight Issue 14 October, November, December 2014

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

    Issue 15 October/November/December 2014 Office of Worker Screening and Compensation Support I N S I D E T H I S I S S U E : Director's Note 1 Quilt 1 NDR 2 JOTG Town Hall 2 UI Recognition 3 SERT 4 Calendar 4 A NOTE FROM THE DIRECTOR By Greg Lewis The late summer and early fall have been an extremely busy time for AU-14, filled with a number of events and projects. In August, we attended Joint Outreach Task Group (JOTG) events in Spokane and Richland, WA, as well as an annual meeting of the

  12. Office of Worker Screening and Compensation Support Workers' Spotlight, July, August, September 2014

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

    Issue 14 July/August/September 2014 Office of Worker Screening and Compensation Support I N S I D E T H I S I S S U E : Director's Note 1 Awards 1 Museum 2 Trivia 3 Calendar 4 A NOTE FROM THE DIRECTOR By Greg Lewis In the past few months there have been a number of changes that have taken place at DOE Headquarters, which have affected the Office of Worker Screening and Compensation Support, both with our organizational structure and with our staffing. First, the DOE Office of 2014 SYLVIA KIEDING

  13. Award Spotlight Could Return to EM-Developed Technology for Tracking Shipments

    Broader source: Energy.gov [DOE]

    WASHINGTON, D.C. – EM’s James Shuler felt honored being named a technology innovation award finalist for developing radiofrequency identification (RFID) technology to track and monitor radioactive material shipments.

  14. DOE Sustainability SPOtlight U.S. Department of Energy Sustainability Performance Office

    Energy Savers [EERE]

    39 December 2014 SUSTAINABILITY ANNOUNCEMENTS NNSS wins 2014 Federal Energy and Water Management Award The Department of Energy's Nevada National Security Site (NNSS) received a 2014 Federal Energy and Water Management Award for accomplishments in fleet sustainability. From FY 2012 to FY 2013, the site's Fuel Lockout Program helped increase alternative fuel use by 35 percent and decrease petroleum use by 18 percent. The E85 Lockout Program modified the fuel management system to identify and

  15. DOE Sustainability SPOtlight U.S. Department of Energy Sustainability Performance Office

    Energy Savers [EERE]

    1 January 2015 SUSTAINABILITY NEWS FEMP Releases Revised Federal Building Metering Guidance The Federal Energy Management Program (FEMP) recently released updated Federal building metering guidance. The November 2014 update supersedes the February 2006 version and includes the following notable updates: expands guidance to include natural gas, steam, and water; revises the definitions of appropriate and cost-effective for determining meter installation locations; provides a recommended approach

  16. DOE Sustainability SPOtlight U.S. Department of Energy Sustainability Performance Office

    Energy Savers [EERE]

    6 June 2015 SUSTAINABILITY ANNOUNCEMENTS John Shonder Named Director of Sustainability Performance Office On May 11, John Shonder was appointed Director of the Sustainability Performance Office (SPO). John has devoted his career to the design, implementation and evaluation of policies and programs to improve the sustainability of federal facilities by reducing energy and water use and increasing the use of renewables. Most recently, he served as Program Manager for Oak Ridge National

  17. DOE Sustainability SPOtlight U.S. Department of Energy Sustainability Performance Office

    Energy Savers [EERE]

    3 March 2015 SUSTAINABILITY NEWS Upcoming Deadline: SPOFOA Applications Due March 27 On January 26, the Sustainability Performance Office (SPO) launched the SPO Funding Opportunity Announcement (SPOFOA), a first-of-its-kind program designed to expand sustainable technologies and practices across the DOE complex. SPOFOA offers financial assistance to promote compliance with federally-mandated sustainability requirements, including goals on the Office of Management & Budget (OMB)

  18. DOE Sustainability SPOtlight U.S. Department of Energy Sustainability Performance Office

    Energy Savers [EERE]

    5 May 2015 SUSTAINABILITY NEWS SPOFOA Applications Currently Under Review The Sustainability Performance Office (SPO) extends a special thanks to all those who submitted applications to the SPO Funding Opportunity Announcement (SPOFOA). The SPOFOA program received 63 high-quality applications from 19 Department of Energy (DOE) sites, laboratories, and offices. Each nomination shows promise to improve compliance with Departmental sustainability requirements. Proposed ventures ranged from

  19. Oct. 29 Webinar to Spotlight DOE Energy Programs for Tribes and...

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

    Mountain time. The webinar, which will build on previous webinars offered as part of the series, will focus on the various programs available from DOE's Office of Indian Energy, ...

  20. Lab Spotlight: Sandia National Lab Team Wins Best in Class Sustainabil...

    National Nuclear Security Administration (NNSA)

    Photo: The team members are Sam McCord, Ralph Wrons, Sean Naegle, Debra Clifford, Ben St. Clair, Lynda Innis, Charles Snider, Chadwick Johnson, Matthew Smith, Jason Loyd, and Gabe ...

  1. Building America Research Teams: Spotlight on Alliance for Residential Building Innovation (ARBI) and Building America Research Alliance (BARA)

    Broader source: Energy.gov [DOE]

    This article profiles the Building America teams, Alliance for Residential Building Innovation (ARBI) and Building America Research Alliance (BARA).

  2. Buildings Energy Data Book: 5.6 Lighting

    Buildings Energy Data Book [EERE]

    6 2010 Lamp Wattage, Number of Lamps, and Hours of Usage Lamp Wattage (Watts per lamp) Number of Lamps per Building Hours of Usage per Day Res Com Ind Other (1) Res Com Ind Res Com Ind Other Incandescent 56 53 46 68 32 14 1 2 10 13 9 General (A-type, Decorative) (2) 58 58 46 N/A 27 8 1 2 10 13 N/A Reflector 69 79 65 N/A 4 4 0 (3) 2 10 12 N/A Miscellaneous 45 7 0 68 1 3 N/A 2 11 0 9 Halogen 65 68 68 149 2 9 0 2 12 12 11 General 50 46 36 N/A 0 0 0 2 12 12 N/A Reflector 68 78 64 N/A 1 4 0 2 12 12

  3. L Prize(tm): The Race for Super Efficient Light Bulbs | Department of Energy

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

    L Prize(tm): The Race for Super Efficient Light Bulbs L Prize(tm): The Race for Super Efficient Light Bulbs This September 23, 2008 webcast provided an overview of the Bright Tomorrow Lighting Prize (L Prize) technology competition. The L Prize calls for super-efficient SSL products to replace two of the most common light bulbs used today: the 60-watt incandescent and the PAR-38 halogen reflector. Kelly Gordon, Pacific Northwest National Laboratory, kicked off the webcast with an overview of the

  4. Working With Weatherization Assistance Programs | Department...

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

    Spotlight on Michigan: Sweeping the State for Ultimate Success Better Buildings: Financing and Incentives: Spotlight on Michigan: Experiment to Find the Right Mix of Incentives ...

  5. Advanced Manufacturing Office Update January 2016 | Department...

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

    Partner Spotlight AMO Technology Advances Wind Turbine Research Hilton Joins Superior ... Partner Spotlight AMO Technology Advances Wind Turbine Research BAAM machine.jpg ...

  6. Voluntary Initiative: Designing Incentives Toolkit | Department...

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

    More Documents & Publications Spotlight on Austin, Texas: Let Your Contractor Be Your Guide for Big Rewards Spotlight on Austin, Texas: Best Offer Ever Produces 564 Upgrades in ...

  7. Hydrogen Production by Polymer Electrolyte Membrane (PEM)Electrolysis...

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

    by Polymer Electrolyte Membrane (PEM) Electrolysis-Spotlight on Giner and Proton Hydrogen Production by Polymer Electrolyte Membrane (PEM) Electrolysis-Spotlight on Giner and ...

  8. NEAMS Quarterly Report for July-September 2012

    Broader source: Energy.gov [DOE]

    The NEAMS quarterly report includes highlights, a spotlight on personal achievements, accomplishments, recent and upcoming milestones, and a technical spotlight on modeling precipitate nucleation.

  9. NEAMS Quarterly Report April-June 2012

    Office of Energy Efficiency and Renewable Energy (EERE)

    This Nuclear Energy Advanced Modeling and Simulation (NEAMS) quarterly report includes highlights, a spotlight on personal achievements, accomplishments, milestones and a technical spotlight on...

  10. WhiteOptics' Low-Cost Reflector Composite Boosts LED Fixture Efficiency

    Broader source: Energy.gov [DOE]

    With the help of DOE funding, WhiteOptics has developed a composite coating that can be used to improve efficiency in backlit, indirect, and cavity-mixing LED luminaire designs by maximizing light reflection and output. The highly diffuse coating, which is based on a novel high-reflectance particle technology, allows for uniform distribution of light without exaggerating the point-source nature of the LEDs, and is intended to offer an overall system cost-improving solution for LED optics.

  11. DOE Requires Manufacturer and Labeler to Cease Sale of Incandescent Reflector Lamps

    Broader source: Energy.gov [DOE]

    DOE has issued Notices of Non-Compliance Determination to Westinghouse Lighting Corporation and Fuzhou Sunlight Lighting Electrical Appliance Company requiring that they halt the sale of 8 basic...

  12. Benchmark Evaluation of Uranium Metal Annuli and Cylinders with Beryllium Reflectors

    SciTech Connect (OSTI)

    John D. Bess

    2010-06-01

    An extensive series of delayed critical experiments were performed at the Oak Ridge Critical Experiments Facility using enriched uranium metal during the 1960s and 1970s in support of criticality safety operations at the Y-12 Plant. These experiments were designed to evaluate the storage, casting, and handling limits of the Y-12 Plant and to provide data for the verification of cross sections and calculation methods utilized in nuclear criticality safety applications. Many of these experiments have already been evaluated and included in the International Criticality Safety Benchmark Evaluation Project (ICSBEP) Handbook: unreflected (HEU-MET-FAST-051), graphite-reflected (HEU-MET-FAST-071), and polyethylene-reflected (HEU-MET-FAST-076). Three of the experiments consisted of highly-enriched uranium (HEU, ~93.2% 235U) metal parts reflected by beryllium metal discs. The first evaluated experiment was constructed from a stack of 7-in.-diameter, 4-1/8-in.-high stack of HEU discs top-reflected by a 7-in.-diameter, 5-9/16-in.-high stack of beryllium discs. The other two experiments were formed from stacks of concentric HEU metal annular rings surrounding a 7-in.diameter beryllium core. The nominal outer diameters were 13 and 15 in. with a nominal stack height of 5 and 4 in., respectively. These experiments have been evaluated for inclusion in the ICSBEP Handbook.

  13. Low-Cost Self-Cleaning Reflector Coatings for CSP Collectors- FY13 Q2

    Broader source: Energy.gov [DOE]

    This document summarizes the progress of this ORNL project, funded by SunShot, for the second quarter of fiscal year 2013.

  14. Development of a Low Cost Ultra Specular Advanced Polymer Film Solar Reflector

    Office of Energy Efficiency and Renewable Energy (EERE)

    This presentation was delivered at the SunShot Concentrating Solar Power (CSP) Program Review 2013, held April 23–25, 2013 near Phoenix, Arizona.

  15. Project Profile: Low-Cost Self-Cleaning Reflector Coatings for...

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

    Oak Ridge National Laboratory logo -- This project is inactive -- The Oak Ridge National Laboratory (ORNL), under the National Laboratory R&D competitive funding opportunity, is ...

  16. Method of and apparatus for collecting solar radiation utilizing variable curvature cylindrical reflectors

    DOE Patents [OSTI]

    Treytl, William J.; Slemmons, Arthur J.; Andeen, Gerry B.

    1979-01-01

    A heliostat apparatus includes a frame which is rotatable about an axis which is parallel to the aperture plane of an elongate receiver. A plurality of flat flexible mirror elements are mounted to the frame between several parallel, uniformly spaced resilient beams which are pivotally connected at their ends to the frame. Channels are mounted to the sides of the beams for supporting the edges of the mirror elements. Each of the beams has a longitudinally varying configuration designed to bow into predetermined, generally circular curvatures of varying radii when the center of the beam is deflected relative to the pivotally connected ends of the beams. All of the parallel resilient beams are simultaneously deflected by a cam shaft assembly extending through openings in the centers of the beams, whereby the mirror elements together form an upwardly concave, cylindrical reflecting surface. The heliostat is rotated about its axis to track the apparent diurnal movement of the sun, while the reflecting surface is substantially simultaneously bowed into a cylindrical trough having a radius adapted to focus incident light at the plane of the receiver aperture.

  17. ORALLOY (93.2 235U) METAL CYLINDER WITH BERYLLIUM TOP REFLECTOR

    SciTech Connect (OSTI)

    John D. Bess; Leland M. Montierth; Raymond Reed; John T. Mihalczo

    2010-09-01

    A variety of critical experiments were constructed of enriched uranium metal during the 1960s and 1970s at the Oak Ridge Critical Experiments Facility (ORCEF) in support of criticality safety operations at the Y-12 Plant. The purposes of these experiments included the evaluation of storage, casting, and handling limits for the Y-12 Plant and providing data for verification of calculation methods and cross-sections for nuclear criticality safety applications. These included solid cylinders of various diameters, annuli of various inner and outer diameters, two and three interacting cylinders of various diameters, and graphite and polyethylene reflected cylinders and annuli. Of the hundreds of delayed critical experiments, one experiment was comprised of a stack of approximately 7-inch-diameter metal discs. The bottom of the stack consisted of uranium with an approximate height of 4-1/8 inches. The top of the stack consisted of beryllium with an approximate height of 5-9/16 inches. This experiment was performed on August 20, 1963 by J. T. Mihalczo and R. G. Taylor (Ref. 1) with accompanying logbook. Both detailed and simplified model specifications are provided in this evaluation. This fast-spectra experiment was determined to represent an acceptable benchmark. The calculated eigenvalues for both the detailed and simple models are within approximately 0.5% of the benchmark values, but significantly greater than 3s from the benchmark value because the uncertainty in the benchmark is very small: 0.0002 (1s). There is significant variability between results using different neutron cross section libraries, the greatest being a ?keff of ~0.65% . Unreflected and unmoderated experiments with the same highly enriched uranium metal parts were performed at the Oak Ridge Critical Experiments Facility in the 1960s and are evaluated in HEU MET FAST 051. Thin graphite reflected (2 inches or less) experiments also using the same highly enriched uranium metal parts are evaluated in HEU MET FAST 071. Polyethylene-reflected configurations are evaluated in HEU-MET-FAST-076. Highly enriched metal annuli with beryllium cores are evaluated in HEU-MET-FAST-059.

  18. Performance enhancement of thin film silicon solar cells based on distributed Bragg reflector and diffraction grating

    SciTech Connect (OSTI)

    Dubey, R. S.; Saravanan, S.; Kalainathan, S.

    2014-12-15

    The influence of various designing parameters were investigated and explored for high performance solar cells. Single layer grating based solar cell of 50 μm thickness gives maximum efficiency up to 24 % whereas same efficiency is achieved with the use of three bilayers grating based solar cell of 30 μm thickness. Remarkably, bilayer grating based solar cell design not only gives broadband absorption but also enhancement in efficiency with reduced cell thickness requirement. This absorption enhancement is attributed to the high reflection and diffraction from DBR and grating respectively. The obtained short-circuit current were 29.6, 32.9, 34.6 and 36.05 mA/cm{sup 2} of 5, 10, 20 and 30 μm cell thicknesses respectively. These presented designing efforts would be helpful to design and realize new generation of solar cells.

  19. Activation of water soluble amines by halogens for trapping methyl radioactive iodine from air streams

    DOE Patents [OSTI]

    Deitz, Victor R.; Blachly, Charles H.

    1977-01-01

    Gas adsorbent charcoals impregnated with an aqueous solution of the reaction product of a tertiary amine and elemental iodine or bromine are better than 99 per cent efficient in trapping methyl iodine.sup.131. The chemical addition of iodine or bromine to the tertiary amine molecule increases the efficiency of the impregnated charcoal as a trapping agent, and in conjunction with the high flash point of the tertiary amine raises the ignition temperature of the impregnated charcoal.

  20. Treatment and prevention systems for acid mine drainage and halogenated contaminants

    DOE Patents [OSTI]

    Jin, Song; Fallgren, Paul H.; Morris, Jeffrey M.

    2012-01-31

    Embodiments include treatments for acid mine drainage generation sources (10 perhaps by injection of at least one substrate (11) and biologically constructing a protective biofilm (13) on acid mine drainage generation source materials (14). Further embodiments include treatments for degradation of contaminated water environments (17) with substrates such as returned milk and the like.