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386 Matching Results
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Accelerated alpha radiation damage in a ceramic waste form, interim results
Interim results are presented on the alpha-decay damage study of a {sup 238}Pu-loaded ceramic waste form (CWF). The waste form was developed to immobilize fission products and transuranic species accumulated from the electrometallurgical treatment of spent nuclear fuel. To evaluate the effects of {alpha}-decay damage on the waste form the {sup 238}Pu-loaded material was analyzed by (1) x-ray diffraction (XRD), (2) microstructure characterization by scanning electron microscopy (SEM) and transmission electron microscopy (TEM) with energy and wavelength dispersive spectroscopy (EDS/WDS) and electron diffraction, (3) bulk density measurements and (4) waste form durability, performed by the product consistency test (PCT). While the predominate phase of plutonium in the CWF, PuO{sub 2}, shows the expected unit cell expansion due to {alpha}-decay damage, currently no significant change has occurred to the macro- or microstructure of the material. The major phase of the waste form is sodalite and contains very little Pu, although the exact amount is unknown. Interestingly, measurement of the sodalite phase unit cell is also showing very slight expansion; again, presumably from {alpha}-decay damage.
Date:
November 11, 1999
Creator:
Frank, S. M.; Johnson, S. G.; Moschetti, T. L.; O'Holleran, T. P.; Sinkler, W.; Esh, D. et al.
Object Type:
Article
System:
The UNT Digital Library
Acceptance Test Report for AMS-4 Continuous Air Monitors (CAM) at 241AN Exhausters
This report provides the completed copy and test results of the Acceptance Test Procedure (TWR-4713). Test results were actually hand written in the ATP including redline changes. All acceptance criteria steps were completed satisfactorily without exceptions.
Date:
November 11, 1999
Creator:
SCAIEF, C.C.
Object Type:
Report
System:
The UNT Digital Library
The Albany News (Albany, Tex.), Vol. 124, No. 24, Ed. 1 Thursday, November 11, 1999
Weekly newspaper from Albany, Texas that includes local, county, and state news along with extensive advertising.
Date:
November 11, 1999
Creator:
Lucas, Donnie A.
Object Type:
Newspaper
System:
The Portal to Texas History
Altus Times (Altus, Okla.), Vol. 100, No. 202, Ed. 1 Thursday, November 11, 1999
Daily newspaper from Altus, Oklahoma that includes local, state, and national news along with advertising.
Date:
November 11, 1999
Creator:
Bush, Michael
Object Type:
Newspaper
System:
The Gateway to Oklahoma History
Analytical electron microscopy study of radioactive ceramic waste form
A ceramic waste form has been developed to immobilize the halide high-level waste stream from electrometallurgical treatment of spent nuclear fuel. Analytical electron microscopy studies, using both scanning and transmission instruments, have been performed to characterize the microstructure of this material. The microstructure consists primarily of sodalite granules (containing the bulk of the halides) bonded together with glass. The results of these studies are discussed in detail. Insight into the waste form fabrication process developed as a result of these studies is also discussed.
Date:
November 11, 1999
Creator:
O'Holleran, T. P.; Sinkler, W.; Moschetti, T. L.; Johnson, S. G. & Goff, K. M.
Object Type:
Article
System:
The UNT Digital Library
The Baytown Sun (Baytown, Tex.), Vol. 78, No. 10, Ed. 1 Thursday, November 11, 1999
Daily newspaper from Baytown, Texas that includes local, state, and national news along with advertising.
Date:
November 11, 1999
Creator:
Cash, Wanda Garner
Object Type:
Newspaper
System:
The Portal to Texas History
Bogata News (Bogata, Tex.), Vol. 89, No. 27, Ed. 1 Thursday, November 11, 1999
Weekly newspaper from Bogata, Texas that includes local, state, and national news along with advertising.
Date:
November 11, 1999
Creator:
Nichols, Nanalee & Nichols, Thomas
Object Type:
Newspaper
System:
The Portal to Texas History
[But Not in Shame, Part 1]
Video footage from a symposium sponsored by the National Museum of the Pacific War entitled But Not in Shame discussing men who were Prisoners of War in Japan during World War Two. This video features remarks given by Kyle Thompson, John Olson, Ken Towery, Bob Martindale and Fiske Hanley.
Date:
November 11, 1999
Creator:
National Museum of the Pacific War
Object Type:
Video
System:
The Portal to Texas History
[But Not in Shame, Part 2]
Video footage from a symposium sponsored by the National Museum of the Pacific War entitled But Not in Shame discussing men who were Prisoners of War in Japan during World War Two. This video contains remarks given by Admiral Grojean, Marty Marshall, Margaret Gillooly, Inez Jongenburger and Morris Shoss.
Date:
November 11, 1999
Creator:
National Museum of the Pacific War
Object Type:
Video
System:
The Portal to Texas History
The Canadian Record (Canadian, Tex.), Vol. 109, No. 45, Ed. 1 Thursday, November 11, 1999
Weekly newspaper from Canadian, Texas that includes local, state and national news along with extensive advertising.
Date:
November 11, 1999
Creator:
Ezzell, Nancy & Brown, Laurie Ezzell
Object Type:
Newspaper
System:
The Portal to Texas History
Characterization of a ceramic waste form encapsulating radioactive electrorefiner salt
Argonne National Laboratory has developed a ceramic waste form to immobilize radioactive waste salt produced during the electrometallurgical treatment of spent fuel. This study presents the first results from electron microscopy and durability testing of a ceramic waste form produced from that radioactive electrorefiner salt. The waste form consists of two primary phases: sodalite and glass. The sodalite phase appears to incorporate most of the alkali and alkaline earth fission products. Other fission products (rare earths and yttrium) tend to form a separate phase and are frequently associated with the actinides, which form mixed oxides. Seven-day leach test results are also presented.
Date:
November 11, 1999
Creator:
Moschetti, T. L.; Sinkler, W.; DiSanto, T.; Noy, M.; Warren, A. R.; Cummings, D. G. et al.
Object Type:
Article
System:
The UNT Digital Library
Cherokeean/Herald (Rusk, Tex.), Vol. 150, No. 38, Ed. 1 Thursday, November 11, 1999
Weekly newspaper from Rusk, Texas that includes local, state and national news along with extensive advertising.
Date:
November 11, 1999
Creator:
Whitehead, Marie
Object Type:
Newspaper
System:
The Portal to Texas History
The Colony Courier-Leader (The Colony, Tex.), Vol. 18, No. 29, Ed. 1 Thursday, November 11, 1999
Weekly newspaper from The Colony, Texas that includes local, state, and national news along with advertising.
Date:
November 11, 1999
Creator:
Fleming, Jackie
Object Type:
Newspaper
System:
The Portal to Texas History
Comparison of the Crevice Corrosion Resistance of Alloys 625 and C22
The effects of electrolyte composition and oxide film age on the crevice corrosion properties of alloys 625 and C22 were studied at 95 C. Critical potentials were determined using conventional current density thresholds. Crevice stabilization potentials are influenced by the bulk electrolyte composition, oxide properties, and alloy dissolution behavior. Repassivation and deactivation potentials are controlled by the chemistry of the crevice solution, mass transport considerations, and the electrochemical properties of the alloys. Critical potential data also showed the large influence of air formed oxide film age on stabilization. Air aged C22 specimens exhibited the highest resistance to crevice corrosion in terms of critical crevice potentials, while freshly polished C22 exhibited the lowest resistance.
Date:
November 11, 1999
Creator:
Kehler, B. A.; Ilevbare, G. O. & Scully, J. R.
Object Type:
Article
System:
The UNT Digital Library
Cooper Review (Cooper, Tex.), Vol. 119, No. 45, Ed. 1 Thursday, November 11, 1999
Weekly newspaper from Cooper, Texas that includes local, state, and national news along with advertising.
Date:
November 11, 1999
Creator:
Kisic, Theresa
Object Type:
Newspaper
System:
The Portal to Texas History
Deep Levels in p- and n-type InGaAsN for High Efficiency Multi-Junction III-V Solar Cells
Red Teaming is an advanced form of assessment that can be used to identify weaknesses in a variety of cyber systems. it is especially beneficial when the target system is still in development when designers can readily affect improvements. This paper discusses the red team analysis process and the author's experiences applying this process to five selected Information Technology Office (ITO) projects. Some detail of the overall methodology, summary results from the five projects, and lessons learned are contained within this paper.
Date:
November 11, 1999
Creator:
Allerman, Andrew A.; Jones, Eric D.; Kaplar, Robert J.; Kurtz, Steven R.; Kwon, Daewon & Ringel, Steven A.
Object Type:
Article
System:
The UNT Digital Library
Development of a composite-reinforced aluminum conductor
Fact sheet written for the Inventions and Innovation Program about a new composite-reinforced aluminum conductor for utility transmission and distribution. The millions of people affected by a blackout in the western US, Canada, and parts of Mexico in July 1996 had no idea the power outage was caused by overloaded transmission lines sagging low enough to touch trees. Millions of New Englanders affected by power outages during the 1997--98 winter probably weren't aware that accumulations of ice and snow on transmission lines had caused the lines to snap. Yet, these two examples illustrate the urgent need to begin upgrading this country's aging electrical-power distribution systems. A key step in this process lies in improving the weight and conductivity characteristics of utility transmission and distribution lines. Conventional conductors used for overhead transmission and distribution lines are comprised of aluminum strands of wire wrapped around a steel core. The aluminum serves as the electrical conductor, while the steel provides mechanical support. This hybrid design results in an excellent weight-to-conductivity ratio, but it also yields a heavier product, which requires stronger and more costly support structures and limits conductivity. W. Brandt Goldsworthy and Associates, Inc., of Torrance, California, is developing a new composite-reinforced …
Date:
November 11, 1999
Creator:
Balsam, J.
Object Type:
Book
System:
The UNT Digital Library
The Dublin Citizen (Dublin, Tex.), Vol. 10, No. 11, Ed. 1 Thursday, November 11, 1999
Weekly newspaper from Dublin, Texas that includes local, state, and national news along with advertising.
Date:
November 11, 1999
Creator:
Norville, Buddy
Object Type:
Newspaper
System:
The Portal to Texas History
Electra Star-News (Electra, Tex.), Vol. 93, No. 13, Ed. 1 Thursday, November 11, 1999
Weekly newspaper from Electra, Texas that includes local, state, and national news along with advertising.
Date:
November 11, 1999
Creator:
unknown
Object Type:
Newspaper
System:
The Portal to Texas History
Engineering Task Plan for Standard Hydrogen Monitoring System Operation
Tanks that are known or suspected to retain and occasionally release flammable gases are equipped with Standard Hydrogen Monitoring System (SHMS) cabinets. These cabinets contain Whittaker{trademark} electrochemical cells and may also have a gas chromatograph (GC) and/or a Bruel and Kjaer infrared photo-acoustic multi-gas monitor (B&K). The GC and B&K will be referred to collectively as ''analytical instruments'' in this document. Using these instruments, a tank can be monitored for hydrogen, helium, ammonia, methane, and nitrous oxide. Air from the tank vent header (for actively ventilated tanks) or dome space (for passively ventilated tanks) is drawn continuously through the monitoring instruments via a sample pump. This monitoring is performed to track the gas release behavior of selected waste storage tanks and to help identify any potentially serious gas release behavior. Vapor grab samples may be obtained from the SHMS as well and analyzed with a mass spectrometer to obtain concentration data about hydrogen and other gases. This document describes the requirements for the operation, maintenance, calibration, and data collection for the Standard Hydrogen Monitoring System. Additionally, this document defines who is responsible for the various tasks.
Date:
November 11, 1999
Creator:
McCain, D. J.
Object Type:
Report
System:
The UNT Digital Library
The Express-Star (Chickasha, Okla.), Ed. 1 Thursday, November 11, 1999
Daily newspaper from Chickasha, Oklahoma that includes local, state, and national news along with advertising.
Date:
November 11, 1999
Creator:
Bush, Kent
Object Type:
Newspaper
System:
The Gateway to Oklahoma History
An Extension of the Krieger-Li-Iafrate Approximation to the Optimized-Effective-Potential Method
The Krieger-Li-Iafrate approximation can be expressed as the zeroth order result of an unstable iterative method for solving the integral equation form of the optimized-effective-potential method. By pre-conditioning the iterate a first order correction can be obtained which recovers the bulk of quantal oscillations missing in the zeroth order approximation. A comparison of calculated total energies are given with Krieger-Li-Iafrate, Local Density Functional, and Hyper-Hartree-Fock results for non-relativistic atoms and ions.
Date:
November 11, 1999
Creator:
Wilson, B.G.
Object Type:
Article
System:
The UNT Digital Library
Garber Billings News (Garber, Okla.), Vol. 100, No. 5, Ed. 1 Thursday, November 11, 1999
Weekly newspaper from Garber, Oklahoma that includes local, state, and national news along with advertising.
Date:
November 11, 1999
Creator:
Hogan, Vickie Lee
Object Type:
Newspaper
System:
The Gateway to Oklahoma History
Giddings Times & News (Giddings, Tex.), Vol. 110, No. 22, Ed. 1 Thursday, November 11, 1999
Weekly newspaper from Giddings, Texas that includes local, state, and national news along with advertising.
Date:
November 11, 1999
Creator:
Preuss, L. M., III & True, David G.
Object Type:
Newspaper
System:
The Portal to Texas History