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SHIPMENT OF TWO DOE-STD-3013 CONTAINERS IN A 9977 TYPE B PACKAGE
The 9977 is a certified Type B Packaging authorized to ship uranium and plutonium in metal and oxide forms. Historically, the standard container for these materials has been the DOE-STD-3013 which was specifically designed for the long term storage of plutonium bearing materials. The Department of Energy has used the 9975 Packaging containing a single 3013 container for the transportation and storage of these materials. In order to reduce container, shipping, and storage costs, the 9977 Packaging is being certified for transportation and storage of two 3013 containers. The challenges and risks of this content and the 9977s ability to meet the Code of Federal Regulations for the transport of these materials are presented.
Date:
June 6, 2011
Creator:
Abramczyk, G.; Bellamy, S.; Loftin, B. & Nathan, S.
Object Type:
Article
System:
The UNT Digital Library
SHIPMENT OF NON-TRADITIONAL CONTENTS IN THE 9977 TYPE B PACKAGE
The 9977 is a certified Type B Packaging authorized to ship uranium and plutonium in metal and oxide forms. These materials are typically confined within metallic containers designed for ease of handling and to prevent the spread of contamination. The Pacific Northwest National Laboratory (PNNL) uses Pu and U sources for the training of domestic and international customs agents in the identification and detection of radioactive materials (RAM). These materials are packed in polycarbonate containers which permit the trainees to view the RAM. The safety basis was made to authorize the use of these unusual containers. The inclusion of the PNNL Training Source Contents into the 9977 Packaging imposed unique conditions previously unanalyzed. The use of polycarbonate as a content container material, while different from any configuration previously considered, does not raise any safety issues with the package which continues to operate with a large safety margin for temperatures, pressures, containment, dose rates, and subcriticality.
Date:
June 6, 2011
Creator:
Abramczyk, G.; Loftin, B.; Bellamy, S. & Nathan, S.
Object Type:
Article
System:
The UNT Digital Library
RECLAMATION OF RADIOACTIVE MATERIAL PACKAGING COMPONENTS
Radioactive material packages are withdrawn from use for various reasons; loss of mission, decertification, damage, replacement, etc. While the packages themselves may be decertified, various components may still be able to perform to their required standards and find useful service. The Packaging Technology and Pressurized Systems group of the Savannah River National Laboratory has been reducing the cost of producing new Type B Packagings by reclaiming, refurbishing, and returning to service the containment vessels from older decertified packagings. The program and its benefits are presented.
Date:
June 6, 2011
Creator:
Abramczyk, G.; Nathan, S.; Loftin, B. & Bellamy, S.
Object Type:
Article
System:
The UNT Digital Library
Status of EXO-200
EXO-200 is the first phase of the Enriched Xenon Observatory (EXO) experiment, which searches for neutrinoless double beta decay in {sup 136}Xe to measure the mass and probe the Majorana nature of the neutrino. EXO-200 consists of 200 kg of liquid Xe enriched to 80% in {sup 136}Xe in an ultra-low background TPC. Energy resolution is enhanced through the simultaneous collection of scintillation light using Large Area Avalanche Photodiodes (LAAPD's) and ionization charge. It is being installed at the WIPP site in New Mexico, which provides a 2000 meter water-equivalent overburden. EXO-200 will begin taking data in 2009, with the expected two-year sensitivity to the half-life for neutrinoless double beta decay of 6.4 x 10{sup 25} years. According to the most recent nuclear matrix element calculations, this corresponds to an effective Majorana neutrino mass of 0.13 to 0.19 eV. It will also measure the two neutrino mode for the first time in {sup 136}Xe.
Date:
December 6, 2011
Creator:
Ackerman, Nicole
Object Type:
Article
System:
The UNT Digital Library
Hybrid Organic-Inorganic Composite Solar Cells for Efficient, Low Cost, Photoelectric Energy Conversion
Cadmium selenide nanoparticles and nanoclusters were prepared and added to polymer solar cells to improve their photon capture ability. These nanoparticles did exhibit some beneficial effects on the photon conversion efficiencies of selected polymer solar cells. Ternary bulk heterojunction systems based on composites of methyl viologen-doped, CdSe nanoparticles blended with poly (3-hexothiopene) (P3HT) and 6, 6-phenyl C{sub 61}-butyric acid methyl ester (PCBM) were also tested. It was found that the devices with methyl viologen-doped CdSe nanoparticles do produce more photocurrent in a region surrounding the absorption peak of the particles (560 to 660nm) when compared to pristine P3HT:PCBM devices. Gold nanorods were also prepared and tested in some solar cells. These nanorods did produce a very small enhancement in photon absorbance, but the observed increase the photon conversion efficiency was not sufficient to make the effort worthwhile. Our goals were (1) to prepare cadmium sulfide and cadmium selenide clusters and nanoparticles to be tested as photon absorbers to enhance the photon conversion efficiency of polymer solar polymer solar cells and (2) to prepare gold and silver nanorods to be added to polymer solar cells to enhance their photon capture capability. The cadmium sulfide and cadmium selenide nanoparticles and some new …
Date:
April 6, 2011
Creator:
Adams, Richard D.
Object Type:
Report
System:
The UNT Digital Library
X-Ray Spectral Constraints for z ≈ 2 Massive Galaxies: The Identification of Reflection-Dominated Active Galactic Nuclei
This article uses the 4 Ms Chandra Deep Field-South survey to place direct constraints on the ubiquity of z ≈ 2 heavily obscured active galactic nuclei.
Date:
June 6, 2011
Creator:
Alexander, David M.; Bauer, Franz E.; Brandt, William Nielsen; Daddi, Emanuele; Hickox, Ryan; Lehmer, Bret et al.
Object Type:
Article
System:
The UNT Digital Library
Alvarado Star (Alvarado, Tex.), Vol. 14, No. 26, Ed. 1 Thursday, January 6, 2011
Weekly newspaper from Alvarado, Texas that includes local, state, and national news along with advertising.
Date:
January 6, 2011
Creator:
Amos, Christopher
Object Type:
Newspaper
System:
The Portal to Texas History
The Debt Limit: History and Recent Increases
This report gives an overview of the federal debt limit, its history, and recent increases
Date:
January 6, 2011
Creator:
Austin, D. Andrew & Levit, Mindy R.
Object Type:
Report
System:
The UNT Digital Library
Scaling hypre's multigrid solvers to 100,000 cores
None
Date:
April 6, 2011
Creator:
Baker, A H; Falgout, R D; Kolev, T V & Yang, U M
Object Type:
Article
System:
The UNT Digital Library
The Rambler (Fort Worth, Tex.), Vol. 94, No. 10, Ed. 1 Wednesday, April 6, 2011
Weekly student newspaper from Texas Wesleyan University in Fort Worth, Texas that includes campus and local news along with advertising.
Date:
April 6, 2011
Creator:
Banks, Shauna
Object Type:
Newspaper
System:
The Portal to Texas History
DNA Databanking: Selected Fourth Amendment Issues and Analysis
This report looks at how the practice of DNA database programs, which have been looked at favorably by Congress, are in possible violation of the Fourth Amendment's prohibition on unreasonable searches and seizures. It looks at how the databases' legality has currently been holding up in court, as well as how new advances and revelations in the science of forensic analysis and databanking may have potentially significant legal implications.
Date:
June 6, 2011
Creator:
Barbour, Emily C.
Object Type:
Report
System:
The UNT Digital Library
ALPHA SPECTROMETRIC EVALUATION OF SRM-995 AS A POTENTIAL URANIUM/THORIUM DOUBLE TRACER SYSTEM FOR AGE-DATING URANIUM MATERIALS
Uranium-233 (t{sub 1/2} {approx} 1.59E5 years) is an artificial, fissile isotope of uranium that has significant importance in nuclear forensics. The isotope provides a unique signature in determining the origin and provenance of uranium-bearing materials and is valuable as a mass spectrometric tracer. Alpha spectrometry was employed in the critical evaluation of a {sup 233}U standard reference material (SRM-995) as a dual tracer system based on the in-growth of {sup 229}Th (t{sub 1/2} {approx} 7.34E3 years) for {approx}35 years following radiochemical purification. Preliminary investigations focused on the isotopic analysis of standards and unmodified fractions of SRM-995; all samples were separated and purified using a multi-column anion-exchange scheme. The {sup 229}Th/{sup 233}U atom ratio for SRM-995 was found to be 1.598E-4 ({+-} 4.50%) using recovery-corrected radiochemical methods. Using the Bateman equations and relevant half-lives, this ratio reflects a material that was purified {approx} 36.8 years prior to this analysis. The calculated age is discussed in contrast with both the date of certification and the recorded date of last purification.
Date:
December 6, 2011
Creator:
Beals, D.
Object Type:
Article
System:
The UNT Digital Library
Intelligence Estimates: How Useful to Congress?
This report discusses the National Intelligence Estimates (NIEs) that represent the highest and most formal level of strategic analysis by the U.S. intelligence community.
Date:
January 6, 2011
Creator:
Best, Richard A., Jr.
Object Type:
Report
System:
The UNT Digital Library
Oral History Interview with Betty J. Blalock, September 6, 2011
The National Museum of the Pacific War presents an oral interview with Betty Blalock. Blalock joined the Navy in 1945 and received basic training in Yonkers. She was assigned to the hospital corps and sent to the amputee ward at Quantico. Once a day, an airplane would arrive with amputees whom Blalock would visit and encourage. She remembers them as having good morale. After the war, she was discharged and married a tech sergeant, Hugh Blalock, who went on to serve in the Air Force for 30 years. She and her husband spent 10 years with Air America in Laos, Saigon, and Bangkok. While there she opened three kindergartens, taking a 12-hour train, a bicycle ride, and a boat taxi twice each week to teach classes. Blalock says that she’s led an interesting life and has gone around the world about five times.
Date:
September 6, 2011
Creator:
Blalock, Betty J
Object Type:
Sound
System:
The Portal to Texas History
Oral History Interview with Betty J. Blalock, September 6, 2011
The National Museum of the Pacific War presents an oral interview with Betty Blalock. Blalock joined the Navy in 1945 and received basic training in Yonkers. She was assigned to the hospital corps and sent to the amputee ward at Quantico. Once a day, an airplane would arrive with amputees whom Blalock would visit and encourage. She remembers them as having good morale. After the war, she was discharged and married a tech sergeant, Hugh Blalock, who went on to serve in the Air Force for 30 years. She and her husband spent 10 years with Air America in Laos, Saigon, and Bangkok. While there she opened three kindergartens, taking a 12-hour train, a bicycle ride, and a boat taxi twice each week to teach classes. Blalock says that she’s led an interesting life and has gone around the world about five times.
Date:
September 6, 2011
Creator:
Blalock, Betty J
Object Type:
Text
System:
The Portal to Texas History
Development of an Antineutrino Detector to Monitor the Operation of a CANDU6 On-Load Refueled Reactor
None
Date:
June 6, 2011
Creator:
Bowden, N.; Bernstein, A.; Classen, T.; Cabrera-Palmer, B.; Reyna, D.; Jonkmans, G. et al.
Object Type:
Article
System:
The UNT Digital Library
Community Development Block Grants: Funding Issues in the 112th Congress and Recent Funding History
This report discusses funding issues in the 112th Congress and recent funding history. The Administration's FY2012 budget proposes to: (1) increase funding for CDBG formula grants by 10.5% from $3.303 billion appropriated in FY2010 to $3.691 billion; (2) eliminate funding for the Neighborhood Initiative and Economic Development Initiative programs; (3) eliminate funding for Section 107 activities; (4) transfer its Sustainable Communities Initiative to a new stand alone account; and (5) convert Section 108 loan guarantees to a fee-based program.
Date:
April 6, 2011
Creator:
Boyd, Eugene
Object Type:
Report
System:
The UNT Digital Library
Is Biopower Carbon Neutral?
This report assesses the variables involved in determining whether or not biopower (i.e., electricity generated from biomass) is a carbon-neutral alternative to fossil fuels as a way to help meet meet U.S. energy demands and reduce U.S. greenhouse gas (GHG) emissions. It includes information about the biomass carbon cycle, GHG accounting for biopower production, recent developments affecting the assessment, and overview of whether or not it can be considered carbon neutral, and legislative implications.
Date:
July 6, 2011
Creator:
Bracmort, Kelsi
Object Type:
Report
System:
The UNT Digital Library
Biomass: Comparison of Definitions in Legislation Through the 111th Congress
This report discusses the use of biomass as an energy feedstock, which is emerging as a potentially viable alternative to address U.S. energy security concerns, foreign oil dependence, rural economic development, and diminishing sources of conventional energy. Biomass (organic matter that can be converted into energy) may include food crops, crops for energy (e.g., switchgrass or prairie perennials), crop residues, wood waste and byproducts, and animal manure. This report discusses legislation regarding biomass, the evolving definition of biomass, and the positions of supporters and detractors of biomass as an alternative energy source.
Date:
January 6, 2011
Creator:
Bracmort, Kelsi & Gorte, Ross W.
Object Type:
Report
System:
The UNT Digital Library
Funding Gaps and Government Shutdowns: CRS Experts
This report is a table providing names and contact information for CRS (Congressional Research Service) experts on policy concerns relating to funding gaps and the processes and effects that may be associated with a government shutdown.
Date:
April 6, 2011
Creator:
Brass, Clinton T.
Object Type:
Report
System:
The UNT Digital Library
R^4 Counterterm and E_{7(7)} Symmetry in Maximal Supergravity
The coefficient of a potential R{sup 4} counterterm in N = 8 supergravity has been shown previously to vanish in an explicit three-loop calculation. The R{sup 4} term respects N = 8 supersymmetry; hence this result poses the question of whether another symmetry could be responsible for the cancellation of the three-loop divergence. In this article we investigate possible restrictions from the coset symmetry E{sub 7(7)}/SU(8), using a double-soft scalar limit relation derived recently by Arkani-Hamed et al. In order to implement the relation, we make use of the fact that the R{sup 4} term occurs in the low-energy expansion of closed-string tree-level amplitudes. We find that the matrix elements of R{sup 4} that we investigated all obey the double-soft scalar limit relation, suggesting that E{sub 7(7)} is also respected by the R{sup 4} term.
Date:
July 6, 2011
Creator:
Broedel, Johannes; /Potsdam, Max Planck Inst. /Leibniz U., Hannover & Dixon, Lance J.
Object Type:
Article
System:
The UNT Digital Library
Perry Daily Journal (Perry, Okla.), Vol. 119, No. 67, Ed. 1 Wednesday, April 6, 2011
Daily newspaper from Perry, Oklahoma that includes local, state, and national news along with advertising.
Date:
April 6, 2011
Creator:
Brown, Gloria
Object Type:
Newspaper
System:
The Gateway to Oklahoma History
Perry Daily Journal (Perry, Okla.), Vol. 119, No. 89, Ed. 1 Friday, May 6, 2011
Daily newspaper from Perry, Oklahoma that includes local, state, and national news along with advertising.
Date:
May 6, 2011
Creator:
Brown, Gloria
Object Type:
Newspaper
System:
The Gateway to Oklahoma History
Perry Daily Journal (Perry, Okla.), Vol. 119, No. 132, Ed. 1 Wednesday, July 6, 2011
Daily newspaper from Perry, Oklahoma that includes local, state, and national news along with advertising.
Date:
July 6, 2011
Creator:
Brown, Gloria
Object Type:
Newspaper
System:
The Gateway to Oklahoma History