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Plasma Separation Process: Betacell (BCELL) code: User's manual. [Bipolar barrier junction]

Description: The emergence of clearly defined applications for (small or large) amounts of long-life and reliable power sources has given the design and production of betavoltaic systems a new life. Moreover, because of the availability of the plasma separation program, (PSP) at TRW, it is now possible to separate the most desirable radioisotopes for betacell power generating devices. A computer code, named BCELL, has been developed to model the betavoltaic concept by utilizing the available up-to-date sour… more
Date: November 13, 1987
Creator: Taherzadeh, M.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Milliwatt generator project: Progress report, April 1983--March 1984

Description: This report covers progress on the Milliwatt Generator Project during April 1983--March 1984. Activities included (plutonium 238 oxide) fuel processing and characterization, production of heat sources, fabrication of pressure-burst test units, compatibility studies, impact testing, examination of surveillance units, Inconel weld development, and qualilty assurance.
Date: May 1, 1988
Creator: Rinehart, G.H. & Latimer, T.W.
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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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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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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Light Weight Radioisotopic Heater Unit (LWRHU) production for the Galileo Mission

Description: The Light Weight Radioisotopic Heater Unit (LWRHU) is a /sup 238/PuO/sub 2)minus/ fueled heat source designed to provide a thermal watt of power for space missions. The LWRHU will be used to maintain the temperature of various components on the spcaecraft at the required level. The heat source consists of a /sup 238/PuO/sub 2/ fuel pellet, a Pt-30Rh capsule, a pyrolytic graphite insulator, and a woven graphite aeroshell assembly. Los Alamos National Laboratory (LANL) has fabricated 134 heater u… more
Date: April 1, 1988
Creator: Rinehart, G.H.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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General-purpose heat source development: Safety Verification Test Program. Titanium bullet/fragment test series

Description: The radioisotope thermoelectric generator (RTG) that will provide power for the Galileo and Ulysses space missions contains 18 General-Purpose Heat Source (GPHS) modules. Each module contains four /sup 238/PuO/sub 2/-fueled clads and generates 250 W(t). Because the possibility of launch-pad or postlaunch explosion exists and because any explosion would generate a field of high-energy fragments, the fueled clads within each GPHS module must be able to survive fragment impact. In this test series… more
Date: June 1, 1986
Creator: George, T.G.
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
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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
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Design evolution and verification of the general-purpose heat source

Description: The General-Purpose Heat Source (GPHS) is a radioisotope heat source for use in space power systems. It employs a modular design, to make it adaptable to a wide range of energy conversion systems and power levels. Each 250 W module is completely autonomous, with its own passive safety provisions to prevent fuel release under all abort modes, including atmospheric reentry and earth impact. Prior development tests had demonstrated good impact survival as long as the iridium fuel capsules retained… more
Date: unknown
Creator: Schock, A.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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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
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Thermodynamic study of the MWG system/components and measurement of the oxygen partial pressure in the heat source capsule

Description: A thermodynamic study of the Milliwatt Generator heat source capsule was performed to determine the effects of the oxide fuel on container materials at elevated temperatures in order to evaluate the factors affecting embrittlement of T-111 alloy. The study indicates that relatively slow oxidation of the T-111 of the capsule occurs during pretreatment. Yttrium added to the /sup 238/PuO/sub 2/ fuel charge is functioning in its designed role as an oxygen getter and is stabilizing at an O/Pu ratio … more
Date: June 23, 1980
Creator: David, D.J.
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 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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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
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Long-term exposure of /sup 238/PuO/sub 2/ to a terrestrial environment. Volume 2

Description: Two environmental simulation chambers were used to study the behavior of a /sup 238/PuO/sub 2/ heat source deposited in a humid, temperate environment. Large fragments from an impact-tested source were deposited in the first chamber, and fines from the source were placed in the second. Plutonium released into the soil, the soil drainages, and the condensates from the dehumidifiers were monitored throughout the experiment. The concentration of plutonium released into the soil drainages increased… more
Date: September 1, 1983
Creator: Patterson, J. H.; Heaton, R. C.; Herrera, B.; Nelson, G. B. & Steinkruger, F. J.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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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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General-purpose heat source project and space nuclear safety fuels program. Progress report, February 1980

Description: This formal monthly report covers the studies related to the use of /sup 238/PuO/sub 2/ in radioisotopic power systems carried out for the Advanced Nuclear Systems and Projects Division of the Los Alamos Scientific Laboratory. The two programs involved are: General-Purpose Heat Source Development and Space Nuclear Safety and Fuels. Most of the studies discussed here are of a continuing nature. Results and conclusions described may change as the work continues. Published reference to the results… more
Date: May 1, 1980
Creator: Maraman, W.J. (comp.)
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Safety-analysis report for packaging (SARP) general-purpose heat-source module 750-Watt shipping container

Description: The SARP includes discussions of structural integrity, thermal resistance, radiation shielding and radiological safety, nuclear criticality safety, and quality control. Extensive tests and evaluations were performed to show that the container will function effectively with respect to all required standards and when subjected to normal transportation conditions and the sequence of four hypothetical accident conditions (free drop, puncture, thermal, and water immersion). In addition, a steady sta… more
Date: October 15, 1981
Creator: Whitney, M. A.; Burgan, C. E.; Blauvelt, R. K.; Zocher, R. W. & Bronisz, S. E.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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General-purpose heat source project and space nuclear safety and fuels program. Progress reportt, January 1980

Description: This formal monthly report covers the studies related to the use of /sup 238/PuO/sub 2/ in radioisotopic power systems carried out for the Advanced Nuclear Systems and Projects Division of the Los Alamos Scientific Laboratory. The two programs involved are the general-purpose heat source development and space nuclear safety and fuels. Most of the studies discussed here are of a continuing nature. Results and conclusions described may change as the work continues. Published reference to the resu… more
Date: April 1, 1980
Creator: Maraman, W.J. (comp.)
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Reentry thermal testing of light-weight radioisotope heater units

Description: Two Light-Weight Radioisotope Heater Units (LWRHU) were exposed to thermal ramps simulating atmospheric reentry. The helium release rates were measured during each test and modeled after simple diffusion theory. The reentry pulses did not result in swelling of the claddings or degradation of fuel pellets.
Date: March 1, 1982
Creator: Peterson, D.E. & Starzynski, J.S.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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General-purpose heat source project and space nuclear safety and fuels program. Progress report

Description: This formal monthly report covers the studies related to the use of /sup 238/PuO/sub 2/ in radioisotopic power systems carried out for the Advanced Nuclear Systems and Projects Division of the Los Alamos Scientific Laboratory. The two programs involved are general-purpose heat source development and space nuclear safety and fuels. Most of the studies discussed hear are of a continuing nature. Results and conclusions described may change as the work continues.
Date: December 1, 1979
Creator: Maraman, W.J. (comp.)
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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