Preparation and evaluation of medical-grade plutonium-238 fuels, July 1, 1971--June 30, 1973

Mullins, L.J.

doi:10.2172/4290212

Cited by 3 publications

(3 citation statements)

References 3 publications

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“…•"Induction-Heated Tilt-Pour Furnace," in RFP 2870,. Chemistry Research and Develop-ment Progress Report, May through October, 1978October, , p. 14 (1979. .…”

Section: Discussionmentioning

confidence: 99%

Review of operating experience at the Los Alamos Plutonium Electrorefining Facility, 1963-1977

Mullins¹,

Morgan²

1981

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“…•"Induction-Heated Tilt-Pour Furnace," in RFP 2870,. Chemistry Research and Develop-ment Progress Report, May through October, 1978October, , p. 14 (1979. .…”

Section: Discussionmentioning

confidence: 99%

Review of operating experience at the Los Alamos Plutonium Electrorefining Facility, 1963-1977

Mullins¹,

Morgan²

1981

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“…Part of the difference is undoubtedly due to the build up of Pu•products. An increase of 2.5 to 3 times would appear 236 reasonable for this source (Mullins, 1972;Cross & Sheppard, 1970). The remainder of the difference is examined below.…”

mentioning

confidence: 97%

Biological effects of implanted nuclear energy sources for artificial heart devices. Progress report, September 1, 1975--August 31, 1976. [Heat dissipation from /sup 238/Pu power sources implanted in dogs]

Kallfelz¹,

Wentworth²,

Cady³

1976

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The work covered in this report involves a study of the biological effects of radiation from mock plutonium power sources in dogs and a study of the possibility of using a tissue heat sink for eliminating additional endogenous heat from 30-watt plutonium power sources in calves. The work is one phase of a program designed to develop a completely implantable artificial heart .system for use in the hilman being. A total of sixty dogs have been implanted with radiation equivalent sources producing radiation fluxes similar to that of plutonium-238, but having no associated heat, at levels of from one to seventy times the radiation flux expected from a 30-watt plutonium-238 source. Results from studies lasting up to 6 years after implantation indicate that these animals, and by inference human beings, 238 may be able to tolerate the radiation flux from 30-watt Pu power sources. Results of heat dissipation studies in calves indicate that it may be possible to induce a vascularized connective tissue capsule sufficient to dissipate 30 watts of additional heat from a surface area of approximately 500 em sq., allowing a heat flux of 0.06 watts per cm sq.

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“…LANL experience with the plutonium-238 isotope goes back many years to pioneering efforts associated w i t h pacemaker development (Mullins 1972;Shupe 1970). Several rooms containing dozens of glove boxes in our-facility-are dedicated to processing plutonium-238.…”

mentioning

confidence: 99%

Development program to recycle and purify plutonium-238 oxide fuel from scrap

Schulte

Silver

Avens

et al. 1997

Space Technology and Applications International Forum (STAIF - 97)

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Nuclear Materials TechnologyDivision has initiated a development program to recover &purify plutonium-238 oxide from impure sources. A glove box line has been designed and a process flowsheet developed to perform this task on a large scale. Our initial effort has focused on purification of 238P~02 fuel that fails to meet General Purpose Heat Source (GPHS) specifications because of impurities. The notable non-actinide impurities were silicon and phosphorus, but aluminum, chromium, iron and nickel were also near or in excess of limits specified by GPHS fuel powder specifications. Among actinide impurities, uranium is of paramount concern because 234U is the daughter of 238pU by alpha decay, and is the largest actinide impurity.

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Preparation and evaluation of medical-grade plutonium-238 fuels, July 1, 1971--June 30, 1973

Cited by 3 publications

References 3 publications

Review of operating experience at the Los Alamos Plutonium Electrorefining Facility, 1963-1977

Review of operating experience at the Los Alamos Plutonium Electrorefining Facility, 1963-1977

Biological effects of implanted nuclear energy sources for artificial heart devices. Progress report, September 1, 1975--August 31, 1976. [Heat dissipation from /sup 238/Pu power sources implanted in dogs]

Development program to recycle and purify plutonium-238 oxide fuel from scrap

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