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Cesium-137 source material for an irradiator

Description: The feasibility of using /sup 137/Cs for the gamma source in sludge irradiators is discussed. It was concluded that /sup 137/Cs, because of its availability in large quantities as a by-product of fission in nuclear reactors, is an excellent candidate source for use in sewage sludge irradiators. The capsules used to store /sup 137/CsCl in the Waste Encapsulation and Storage Facility embody the technology gained by extensive development and experience during the past 25 years. The WESF capsule pr… more
Date: January 1, 1980
Creator: Lamb, E.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
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Tilt-pour melt-caster for encapsulation of radioactive cesium

Description: Use of the tilt-pour melt-caster makes distinct improvements in the cesium encapsulation process. Compared to the vacuum castings system now in use, the tilt-pour equipment requires no reliance on heat-traced transfer lines, less sealing pressure for capsule filling, is less corrosive to capsules and is easier to repair. From the results of the extensive development program, it is concluded that the tilt-pour melt-caster can be operated to meet the cesium encapsulation production and maintenanc… more
Date: January 1, 1977
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
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/sup 238/Pu fuel-form processes. Quarterly report, October-December 1981

Description: Progress in the Savannah River /sup 238/Pu Fuel Form Program is summarized. Work during this period concentrated on the extensive cracking of the /sup 238/PuO/sub 2/ fuel form prior to encapsulation in the iridium containment shell for heat sources. This cracking results in increased recycle cost and decreased production efficiency. To better understand this cracking, Savannah River Laboratory (SRL) has made an extensive review of the development of /sup 238/PuO/sub 2/ fuel forms from small-sca… more
Date: May 1, 1982
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Quarterly report on the strontium heat source development program, Advanced Nuclear Systems and Projects Division for April-June 1980

Description: Oak Ridge National Laboratory completed metallographic examination of the metal specimens from the 30,000-h compatibility tests with /sup 90/SrF/sub 2/. Electron microprobe analysis of the specimens is now under way. Results show that chemical attack of the 30,000-h specimens was not much greater than that observed in the 6000- to 20,000-h tests. Work continues on qualification testing of the as-fabricated prototype outer capsules. As-fabricated Hastelloy S and Hastelloy C-4 outer capsules pass… more
Date: July 1, 1980
Creator: Fullam, H. T.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Flight-systems safety program. Progress report, February 1982

Description: This technical monthly report covers studies related to the use of /sup 238/PuO/sub 2/ in radioisotope power systems carried out for the Office of Coordination and Special Projects of the US Department of Energy by los Alamos National Laboratory. Most of the studies discussed here are ongoing. Results and conclusions described may change as the work continues. Published reference of the results cited in this report should not be made without the explicit permission of the person in charge of th… more
Date: February 1, 1982
Creator: Bronisz, S. E.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Space nuclear safety and fuels program. Progress report

Description: This technical monthly report covers studies related to the use of /sup 238/PuO/sub 2/ in radioisotope power systems. These studies are conducted by Los Alamos National Laboratory for the Office of Coordination and Special Projects of the US Department of Energy. Because most of the studies discussed here are ongoing, results and conclusions may change as the work continues. Published reference of the results cited in this report should not be made without explicit permission from the person in… more
Date: January 1, 1982
Creator: Bronisz, S. E.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Welding iridium heat-source capsules for space missions

Description: A remote computer-controlled welding station was developed to encapsulate radioactive PuO/sub 2/ in iridium. Weld quench cracking caused an interruption in production of capsules for upcoming space missions. Hot crack sensitivity of the DOP-26 iridium alloy was associated with low melting constituents in the grain boundaries. The extent of cracking was reduced but could not be eliminated by changes to the welding operation. An ultrasonic test was developed to detect underbead cracks exceeding a… more
Date: March 1982
Creator: Kanne, W. R., Jr.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
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Flight-systems safety program. Progress report, March 1982

Description: This technical monthly report covers studies related to the use of /sup 238/PuO/sub 2/ in radioisotope power systems carried out for the Office of Coordination and Special Projects of the US Department of Energy by Los Alamos National Laboratory. Most of the studies discussed here are ongoing. Results and conclusions described may change as the work continues. Published reference of the results cited in this report should not be made without the explicit permission of the person in charge of th… more
Date: July 1, 1982
Creator: Bronisz, S. E.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Environmental and radiological safety studies: Interaction of /sup 238/PuO/sub 2/ heat sources with terrestrial and aquatic environments. Progress report, September 26-December 25, 1981

Description: Although existing radioisotope thermoelectric generator designs have proved more than adequately safe, more information is continually sought about the heat sources to improve their safety. The work here includes studies of the effects on the heat sources of terrestrial and aquatic environments and also of the effect of the heat sources on various simulated environments. This progress report presents recent data from environmental chamber and aquatic experiments and gives the present status of … more
Date: February 1, 1982
Creator: Matlack, G. M. & Patterson, J. H.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Milliwatt generator heat source. Progress report, July-December 1981

Description: As part of the Milliwatt Generator (MWG) Program, a second series of pressure burst capsules welded offsite was tested; the resulting data indicate that the welds are very similar to those in the first series of capsules. Sufficient hardware was fabricated to meet all scheduled commitments. To provide a unit for feasibility testing, a heat source clad with Hastelloy C was reclad with Inconel 600. Forming development tests on Inconel 600 were conducted with favorable results. A QAS-3 survey was … more
Date: April 8, 1982
Creator: Mershad, E.A.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Design and qualification testing of a strontium-90 fluoride heat source

Description: The Strontium Heat Source Development Program began at the Pacific Northwest Laboratory (PNL) in 1972 and is scheduled to be completed by the end of FY-1981. The program is currently funded by the US Department of Energy (DOE) By-Product Utilization Program. The primary objective of the program has been to develop the data and technology required to permit the licensing of power systems for terrestrial applications that utilize /sup 90/SrF/sub 2/-fueled radioisotope heat sources. A secondary ob… more
Date: December 1, 1981
Creator: Fullam, H. T.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Macro-encapsulation of heat storage phase-change materials for use in residential buildings. Second quarterly progress report, December 29, 1976--March 29, 1977

Description: Objectives of the work are to assess the feasibility of macro-encapsulated phase change materials (PCM's) for residential solar systems and to develop and evaluate such materials. Encapsulant materials under consideration are multilayer flexible plastic films, steel cans, and plastic bottles. PCM's under study are Mg(NO/sub 3/)/sub 2/.6H/sub 2/O, naphthalene-benzoic acid eutectic, stearic acid, Mg(NO/sub 3/)/sub 2/.6H/sub 2/O-NH/sub 4/NO/sub 3/ eutectic, and CaCl/sub 2/.6H/sub 2/O. Compatibilit… more
Date: May 1, 1977
Creator: Lane, G. A.; Hartwick, P. B. & Rossow, H. E.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Creep properties of forged 2219 T6 aluminum alloy shell of general-purpose heat source-radioisotope thermoelectric generator

Description: The shell (2219 T6 aluminum forging) of the General Purpose Heat Source-Radioisotope Thermoelectric Generator was designed to retain the generator under sufficient elastic stress to secure it during space flight. A major concern was the extent to which the elastic stress would relax by creep. To determine acceptability of the shell construction material, the following proof tests simulating service were performed: 600 h of testing at 270/sup 0/C under 24.1 MPa stress followed by 10,000 h of sto… more
Date: December 1, 1981
Creator: Hammond, J.P.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Space nuclear safety and fuels program, November 1981

Description: This technical monthly report covers studies related to the use of /sup 238/PuO/sub 2/ in radioisotope power systems carried out for the Office of Coordination and Special Projects of the US Department of Energy by Los Alamos National Laboratory. Most of the studies discussed here are ongoing. Results and conclusions described may change as the work continues. Published reference of the results cited in this report should not be made without the explicit permission of the person in charge of th… more
Date: April 1, 1982
Creator: Bronisz, S. E.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Strontium heat source development program. Advanced Nuclear Systems and Projects Division, quarterly report, January-March 1980

Description: Sectioning of the capsules from the 30,000-h tests with /sup 90/SrF/sub 2/ has been completed at Oak Ridge National Laboratory, and examination of the test specimens is under way. Metallographic examination of specimens taken from the WESF /sup 90/SrF/sub 2/ capsule that was held at about 800/sup 0/C for three years has been completed. Attack of the Hastelloy C-276 was not significantly greater than that observed in the WESF capsule held at 800/sup 0/C for 5000 hours. Hydrostatic pressure testi… more
Date: April 1, 1980
Creator: Fullam, H. T.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Space nuclear safety and fuels program, December 1981

Description: This technical monthly report covers studies related to the use of /sup 238/PuO/sub 2/ in radioisotope power systems carried out for the Office of Coordination and Special Projects of the US Department of Energy by Los Alamos National Laboratory. Most of the studies discussed here are ongoing. Results and conclusions described may change as the work continues. Published reference of the results cited in this report should not be made without the explicit permission of the person in charge of th… more
Date: April 1, 1982
Creator: Bronisz, S. E.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Quarterly report on the strontium heat source development program, advanced nuclear systems and projects division for October-December 1979

Description: The 30,000-h compatibility tests with /sup 90/SrF/sub 2/ were completed, and the test capsules were shipped to Oak Ridge National Laboratory for sectioning and metallographic examination. The 23 Hastelloy S and Hastelloy C-4 prototype outer capsules to be used in the qualification tests were radiographed and helium leak-checked. None of the capsules leaked, but radiographs of the capsule welds showed that weld penetration was only 50 to 70% of the desired amount. It has been decided to reweld t… more
Date: January 1, 1980
Creator: Fullam, H. T.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Heat source component development program. Quarterly report, July--September 1977

Description: The impact-member work is directed to gaining needed knowledge and understanding of the response of materials and designs to heat-source impact conditions, and applying the technology gained to the selection or development and demonstration of preferred impact-member materials and designs that will insure fuel containment in the event of earth impact. During the past quarter, major effort has been directed to analyzing the impact-member problem in the light of knowledge and understanding gained… more
Date: October 1, 1977
Creator: Foster, E.L. Jr. (comp.)
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Testing and evaluation of doubly impacted simulant-fueled Milliwatt Generator heat sources

Description: As part of the Milliwatt Generator (MWG) Program, 12 simulant-fueled heat sources were fabricated double impact tested, and evaluated at Mound. Ten assemblies were tested at approx. 80 m/sec, and two were tested at approx. 105 m/sec. None of the strength members were breached; therefore, no fuel would have been released as a result of double impacts at the velocities and orientations tested at 450/sup 0/C. There was little difference in results for duplicate tests conducted approx. 80 and appro… more
Date: April 9, 1982
Creator: Teaney, P. E.; Cartmill, W. B. & Wise, R. L.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Macro-encapsulation of heat storage phase-change materials for use in residential buildings. First quarterly progress report, September 29--December 29, 1976

Description: Objectives are to assess the feasibility of macro-encapsulated PCM's for residential solar systems, to develop and evaluate such materials. Five PCM's have been selected from encapsulation studies. Encapsulated storage media were evaluated theoretically in storage beds with air and water as the heat transfer medium. Cylindrical, tetrahedral, and pillow shapes are being evaluated for the encapsulated PCM. Encapsulant materials under consideration are multilayer flexible plastic films, steel cans… more
Date: February 1, 1977
Creator: Lane, G. A.; Kott, A. C. & Rossow, H. E.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Flight-Systems Safety Program, April 1982. Progress report

Description: This technical monthly report covers studies related to the use of /sup 238/PuO/sub 2/ in radioisotope power systems carried out for the Office of Coordination and Special Projects of the US Department of Energy by Los Alamos National Laboratory. Most of the studies discussed here are ongoing. Results and conclusions described may change as the work continues. Published reference of the results cited in this report should not be made without the explicit permission of the person in charge of th… more
Date: July 1, 1982
Creator: Bronisz, S. E.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Characterization of two WESF (Waste Encapsulation and Storage Facility) capsules after five years of service

Description: Two Waste Encapsulation and Storage Facility (WESF) /sup 137/Cs capsules have been analyzed destructively after five years of service in the Sandia Irradiator for Dried Sewage Solids (SIDSS). The program concentrated on studies of the inner capsule, inner capsule weld areas, and analysis of the CsCl salt. No measurable corrosion was observed on the capsule wall or welds after the five years in the SIDSS Facility. The operating temperatures of the inner capsule wall were calculated to be between… more
Date: April 1, 1988
Creator: Sasmor, D. J.; Pierce, J. D.; Tingey, G. L.; Kjarmo, H. E.; Tills, J. & McKeon, D. C.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Space nuclear safety and fuels program. Progress report, October 1981

Description: This technical monthly report covers studies related to the use of /sup 238/PuO/sub 2/ in radioisotope power systems carried out for the Office of Coordination and Special Projects of the US Department of Energy by Los Alamos National Laboratory. Topics include impact tests and temperature response of a general purpose heat source, light-weight radioisotope heater unit, support systems, and helium release. (WHK)
Date: March 1, 1982
Creator: Bronisz, S. E.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Reentry thermal testing of a general purpose heat source fueled clad

Description: A General Purpose Heat Source (GPHS) module was exposed to heat treatments simulating an isothermal prelaunch condition, followed by thermal pulses corresponding to atmospheric reentry. Helium release rates were determined during each heating and modeled after simple diffusion theory. Following the tests, the module was examined metallurgically with no evidence of swelling of the cladding nor degradation of the fuel.
Date: March 1, 1982
Creator: Peterson, D. E. & Frantz, C. E.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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