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10
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189
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103
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102
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19
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14
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Evaluation of filter media for clarification of partially dissolved residues containing plutonium
A common process in the chemical industry employs the leaching of a desirable component from an insoluble substrate, followed by filtration to produce a clarified solution of the desirable component and a discardable residue. The work described here involved evaluating sintered metal filter media for separating dissolved plutonium from undissolved residues generated at various locations owned by the Department of Energy throughout the United States. The work was performed during a six-week assignment at the Savannah River Laboratory as part of a high school science enrichment program conducted in the summer of 1989. The leach step used included dissolving the plutonium-containing solids in a solution of nitric-hydrofluoric acid. To simulate the partial solubility of the actual plutonium-containing residues, a non-radioactive power plant flyash was used. 6 refs., 14 figs., 1 tab.
Date:
October 9, 1989
Creator:
Foley, E.S.
Object Type:
Report
System:
The UNT Digital Library
Survey of thermal imaging technology and applications at the Savannah River Site
This memorandum is an introduction to thermal imaging systems and their use. Emission of infrared radiation from ideal and real materials is described, as are methods of detection in modern thermal imaging systems. Typical specifications and features of commercially available thermal imaging systems are described, and uses of thermal imaging are discussed. At the Savannah River Site (SRS), thermal imaging has been used extensively to measure the temperature of surface water that carries heat from the reactors to the Savannah River. Other uses at SRS have been surveying roof insulation and moisture, evaluating insulation of prototype glass melters at the TNX facility, and locating leaks in the Concentrate Transfer System. Future recommended programs include evaluating thermal imaging for general monitoring of plant facilities, especially electrical conduits, processes occurring at elevated temperature, and radioactive storage areas that generate significant amounts of waste heat. Research on the resistance weld techniques used in tritium reservoir handling (pinch welding and reclamation welding) may profit from high speed thermal image monitoring of heat generated during welding, and other Process Development activities may also benefit from high-speed thermal image monitoring. 12 refs., 1 fig.
Date:
October 9, 1989
Creator:
unknown
Object Type:
Report
System:
The UNT Digital Library
Magnetic interactions in sup 119 Sn substituted for Cu in antiferromagnetic and superconducting lamellar cuprates
Moessbauer Spectroscopy (MS) studies of {sup 119}Sn were carried out in antiferromagnetic La{sub 2}(Cu{sub 0.99}Sn{sub 0.01})O{sub 4} (214) and in superconducting GdBa{sub 2}(Cu{sub 0.99}Sn{sub 0. 01}){sub 3}O{sub 7} (123). Non-magnetic Sn{sup 4+} substitutes for Cu if the right procedure for diffusing {sup 119}SnO{sub 2} in CuO is carried out. Studies performed in 214 show a large quadrupole splitting (QS) down to 120 K followed by an onset of a magnetic interaction reaching a saturation internal field of H{sub eff} = 8.7(5) KOe at T = 30 K. From the combined magnetic-quadrupole interaction the angle {theta} formed by q{sub zz} and H{sub eff}, the {eta}-parameter, and the sign of QS were deduced and information on the local spin structure is derived. Studies conducted with the 123 material (T{sub c} = 90 K) reveal a broad unsplit line at temperatures down to 60 K followed by an abrupt onset of a magnetic interaction corresponding to H{sub eff} (Sn) = 8.3 (7) KOe. The hyperfine field decreases with decreasing temperature reaching 6.0(1) KOe at 16 K. The onset of the magnetic interaction at the {sup 119}Sn nucleus is explained as due to a local depletion of holes following the Sn{sup 4+} doping and …
Date:
November 9, 1989
Creator:
Pasternak, M. & Taylor, R. D.
Object Type:
Article
System:
The UNT Digital Library
Reverse trade mission on the drilling and completion of geothermal wells
This draft report was prepared as required by Task No. 2 of the US Department of Energy, Grant No. DE-FG07-89ID12850 Reverse Trade Mission to Acquaint International Representatives with US Power Plant and Drilling Technology'' (mission). As described in the grant proposal, this report covers the reactions of attendees toward US technology, its possible use in their countries, and an evaluation of the mission by the staff leaders. Note this is the draft report of one of two missions carried out under the same contract number. Because of the diversity of the mission subjects and the different attendees at each, a separate report for each mission has been prepared. This draft report has been sent to all mission attendees, specific persons in the US Department of Energy and Los Alamos National Lab., the California Energy Commission (CEC), and various other governmental agencies.
Date:
September 9, 1989
Creator:
unknown
Object Type:
Article
System:
The UNT Digital Library
Guest Artist Recital: 1989-02-09 - Adam Holzman, classical guitar
Access:
Use of this item is restricted to the UNT Community
A guest artist recital performed at the UNT College of Music Recital Hall.
Date:
February 9, 1989
Creator:
Holzman, Adam
Object Type:
Sound
System:
The UNT Digital Library
Faculty Recital: 1989-04-09 - Dan Haerle, keyboards, Paul Chapman, bass, and Ed Soph, drums
Access:
Use of this item is restricted to the UNT Community
A jazz faculty recital performed at the UNT College of Music Recital Hall.
Date:
April 9, 1989
Creator:
Haerle, Dan; Chapman, Paul & Soph, Ed
Object Type:
Sound
System:
The UNT Digital Library
[Photograph 2012.201.B0093.0645]
Photograph used for a story in the Daily Oklahoman newspaper. Caption: "OU's Mookie Blaylock applies the pressure to lee Coward of Missouri in Thursday's Big Eight showdown."
Date:
February 9, 1989
Creator:
Sisney, Steve
Object Type:
Photograph
System:
The Gateway to Oklahoma History
Academy sharpens teens' math, science skills
Article discussing the students of the first class of the Texas Academy of Mathematics and Science.
Date:
May 9, 1989
Creator:
Pryzant, Connie
Object Type:
Clipping
System:
The UNT Digital Library
[Photograph 2012.201.B0166.0088]
Photograph used for a newspaper owned by the Oklahoma Publishing Company. Caption: "The American Morgan Horse Institute, President Fred Dorwart."
Date:
October 9, 1989
Creator:
Klock, Roger
Object Type:
Photograph
System:
The Gateway to Oklahoma History
[Photograph 2012.201.B0154.0403]
Photograph used for a story in the Daily Oklahoman newspaper. Caption: "The quality of U.S. health care is excellent, but lack of access to it "is probable the greatest incrimination of our present system," says the immediate past president of the American Medical Association."
Date:
October 9, 1989
Creator:
Klock, Roger
Object Type:
Photograph
System:
The Gateway to Oklahoma History
[Photograph 2012.201.B0136.0150]
Photograph used for a story in the Daily Oklahoman newspaper. Caption: "Past Presidents -- Past presidents Lois Payne Hanna, Eleanor Maurer and Thellis Clark, from left, visit recently at the Executive Women International local chapter's 30th anniversary celebration at the Sheraton-Century Center Hotel."
Date:
May 9, 1989
Creator:
Hellstern, Paul
Object Type:
Photograph
System:
The Gateway to Oklahoma History
[Photograph 2012.201.B0171.0410]
Photograph used for a story in the Daily Oklahoman newspaper. Caption: "U. S. marshal Stuart Earnest stands outside the Muffettland day-care home, 704 NE 34 Terrace in Oklahoma City, Friday as authorities seize the property in connection with a drug raid at the home last week."
Date:
June 9, 1989
Creator:
Sisney, Steve
Object Type:
Photograph
System:
The Gateway to Oklahoma History
[Photograph 2012.201.B0140.0185]
Photograph used for a story in the Daily Oklahoman newspaper. Caption: "Steve Collins loses his grip on the ball as Leon Perry awaits the handoff on the first play of the Saturday between OU and Baylor."
Date:
September 9, 1989
Creator:
McDaniel, David
Object Type:
Photograph
System:
The Gateway to Oklahoma History
[Photograph 2012.201.B0323.0004]
Photograph used for a story in the Daily Oklahoman newspaper. Caption: "The Oklahoma Foundation for Excellence will have its third annual Academic All-State Awards Banquet on Saturday, April 15, at the Myriad Convention Center in Oklahoma City."
Date:
April 9, 1989
Creator:
unknown
Object Type:
Photograph
System:
The Gateway to Oklahoma History
The theory of heavy flavour production
The theory of heavy quark production in hadronic reactions is reviewed. Rates for the production of charm, bottom and top quarks at energies of current interest are presented. 34 refs., 19 figs., 2 tabs.
Date:
August 9, 1989
Creator:
Ellis, R.K.
Object Type:
Article
System:
The UNT Digital Library
Survey of digital imaging technology and applications at the Savannah River Site
An introduction to methods of digital image analysis is presented. Modern commercially available digital image analysis systems are described, along with applications that may be useful to programs at the Savannah River Site (SRS). Systems to aid inspection of tritium reservoir fill stems and a system to enhance inspection of radiographs of pinch weld closures of tritium reservoirs have already been developed at SRS. Modern digital analysis systems based on personal computers have been and are being procured for use in Savannah River Laboratory (SRL) programs, and are finding immediate application in several programs requiring quantitative metallography. It is argued that x-ray computed tomographic imaging, digitally-enhanced ultrasonic testing and acoustic microscopy are three techniques that would enhance not only the research and development efforts at SRL, but also may be applicable in production (for example, in pinch and reclamation welding of tritium reservoirs, and in reactor component inspection) as quality assurance and documentation tools. 21 refs.
Date:
October 9, 1989
Creator:
unknown
Object Type:
Report
System:
The UNT Digital Library
[Photograph 2012.201.B0312B.0071]
Photograph used for a newspaper owned by the Oklahoma Publishing Company. Caption: "Tom Jones"
Date:
October 9, 1989
Creator:
Sisney, Steve
Object Type:
Photograph
System:
The Gateway to Oklahoma History
[Photograph 2012.201.B0354.0556]
Photograph used for a story in the Daily Oklahoman newspaper. Caption: "Cascia Hall nose guard Aaron Cato in on Okemah quarterback Toney Lee during Saturday's Class 2A title game in Stillwater."
Date:
December 9, 1989
Creator:
McDaniel, David
Object Type:
Photograph
System:
The Gateway to Oklahoma History
[Photograph 2012.201.B0334.0095]
Photograph used for a story in the Daily Oklahoman newspaper. Caption: "O U's Stacey King can't believe his eyes after being called for charging against Missouri."
Date:
February 9, 1989
Creator:
Beckel, Jim
Object Type:
Photograph
System:
The Gateway to Oklahoma History
[Photograph 2012.201.B0352.0120]
Photograph used for a story in the Daily Oklahoman newspaper. Caption: "Pictured above, Valerie Harbour, 10, of Edmond poses with her artwork, which is among local pieces on display at Central State University."
Date:
July 9, 1989
Creator:
McDaniel, David
Object Type:
Photograph
System:
The Gateway to Oklahoma History
[Photograph 2012.201.B0306B.0532]
Photograph used for a newspaper owned by the Oklahoma Publishing Company. Caption: "James Goree - Ward 7 City Councilman"
Date:
May 9, 1989
Creator:
Beckel, Jim
Object Type:
Photograph
System:
The Gateway to Oklahoma History
[Photograph 2012.201.B0271.0563]
Photograph used for a newspaper owned by the Oklahoma Publishing Company.
Date:
October 9, 1989
Creator:
Sisney, Steve
Object Type:
Photograph
System:
The Gateway to Oklahoma History
[Photograph 2012.201.B0261C.0490]
Photograph used for a story in the Daily Oklahoman newspaper. Caption: "Anita Weinstein, Lee Speer and Ann Hoover, from left, promote Heart Day at the Races scheduled Sunday at Remington Park."
Date:
November 9, 1989
Creator:
Klock, Roger
Object Type:
Photograph
System:
The Gateway to Oklahoma History
[Photograph 2012.201.B0268.0465]
Photograph used for a story in the Daily Oklahoman newspaper. Caption: "OSU tailback Gerald Hudson is hauled down by Tulsa defenders Saturday night."
Date:
September 9, 1989
Creator:
Hellstern, Paul
Object Type:
Photograph
System:
The Gateway to Oklahoma History