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2025 ANS Annual Conference
June 15–18, 2025
Chicago, IL|Chicago Marriott Downtown
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ANS’s Mentor Match applications open
Applications are now open for the American Nuclear Society’s newly redesigned mentoring program. Mentor Match is a unique opportunity available only to ANS members that offers year-round mentorship and networking opportunities to Society members at any point in their education.
The deadline to apply for membership in the inaugural summer cohort, which will take place July 1–August 31, is June 20. The application form can be found here.
L. J. Mullins, J. A. Leary
Nuclear Technology | Volume 6 | Number 4 | April 1969 | Pages 287-297
Technical Papers and Note | doi.org/10.13182/NT69-A28336
Articles are hosted by Taylor and Francis Online.
The successful utilization of 238Pu as a biomedical radioisotopic power source requires that the external radiation of 238Pu be understood quantitatively and kept to a minimum. To achieve these objectives 238Pu metal (80 at.% 238Pu) of high chemical purity has been prepared and characterized. An electrorefining process was developed to prepare the metal on a 1-cm3 scale. The neutron emission rate of three lots of electrorefined metal was 2446 (±30) n/sec per gram Pu. Correcting this measured rate for chemical impurities and fast fission gives a spontaneous fission rate of 2234 n/sec per gram Pu, or 2800 n/sec per gram of 238Pu. Neutron and gamma dose rates were also measured. Plutonium-238-gallium alloy, 238PuO2, and 238PuN were prepared and evaluated as radioisotopic heat sources.
