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Division Spotlight
Materials Science & Technology
The objectives of MSTD are: promote the advancement of materials science in Nuclear Science Technology; support the multidisciplines which constitute it; encourage research by providing a forum for the presentation, exchange, and documentation of relevant information; promote the interaction and communication among its members; and recognize and reward its members for significant contributions to the field of materials science in nuclear technology.
Meeting Spotlight
2025 ANS Annual Conference
June 15–18, 2025
Chicago, IL|Chicago Marriott Downtown
Standards Program
The Standards Committee is responsible for the development and maintenance of voluntary consensus standards that address the design, analysis, and operation of components, systems, and facilities related to the application of nuclear science and technology. Find out What’s New, check out the Standards Store, or Get Involved today!
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Smarter waste strategies: Helping deliver on the promise of advanced nuclear
At COP28, held in Dubai in 2023, a clear consensus emerged: Nuclear energy must be a cornerstone of the global clean energy transition. With electricity demand projected to soar as we decarbonize not just power but also industry, transport, and heat, the case for new nuclear is compelling. More than 20 countries committed to tripling global nuclear capacity by 2050. In the United States alone, the Department of Energy forecasts that the country’s current nuclear capacity could more than triple, adding 200 GW of new nuclear to the existing 95 GW by mid-century.
F. T. Cross, J. C. Sheppard
Nuclear Technology | Volume 13 | Number 1 | January 1972 | Pages 83-94
Technical Paper | Radioisotope | doi.org/10.13182/NT72-A31070
Articles are hosted by Taylor and Francis Online.
The dose rates from an implanted 238Pu heat source have been measured and calculated. The source material was medical grade plutonium of nominal 30-W strength. The tissue-equivalent phantoms were both a large homogeneous right-circular cylinder and a man-simulating Remab phantom. Calculated dose rates agreed to within 20% with measured values except for positions very close to the source. The reasons for discrepancies greater than this are thought mainly to arise from the uncertainties in the photon emission rate and the use of dosimeters too large for neutron measurements close to the source. In general, the agreement of the measured and calculated values is good, at least in the regions where the photons and neutrons make their greatest dose contribution for a source enclosed in a circulatory support system. It is concluded that an artificial heart device incorporating a medical grade plutonium heat source is probably acceptable to the recipient from a radiation dose standpoint independent of its acceptability as a prosthetic device.
