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Division Spotlight
Young Members Group
The Young Members Group works to encourage and enable all young professional members to be actively involved in the efforts and endeavors of the Society at all levels (Professional Divisions, ANS Governance, Local Sections, etc.) as they transition from the role of a student to the role of a professional. It sponsors non-technical workshops and meetings that provide professional development and networking opportunities for young professionals, collaborates with other Divisions and Groups in developing technical and non-technical content for topical and national meetings, encourages its members to participate in the activities of the Groups and Divisions that are closely related to their professional interests as well as in their local sections, introduces young members to the rules and governance structure of the Society, and nominates young professionals for awards and leadership opportunities available to members.
Meeting Spotlight
ANS Student Conference 2025
April 3–5, 2025
Albuquerque, NM|The University of New Mexico
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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Nuclear Technology
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February 2025
Latest News
Candidates for leadership provide statements: ANS Board of Directors
With the annual ANS election right around the corner, American Nuclear Society members will be going to the polls to vote for a vice president/president-elect, treasurer, and members-at-large for the Board of Directors. In January, Nuclear News published statements from candidates for vice president/president-elect and treasurer. This month, we are featuring statements from each nominee for the Board of Directors.
M. J. Bell
Nuclear Technology | Volume 18 | Number 1 | April 1973 | Pages 5-14
Technical Paper | Fuel | doi.org/10.13182/NT73-A16102
Articles are hosted by Taylor and Francis Online.
The ORIGEN computer code has been used to compute the time-dependent thermal power, photon spectrum, and neutron production rate resulting from fast- and thermal-neutron-induced fission of 235U and 239Pu fuels. Computed afterheats and photon spectra of fission products resulting from thermal fission of 235U are shown to be in good agreement with published data, and computed radioactivities and thermal power of plutonium irradiated to low exposures in both thermal- and fast-neutron spectra are found to agree well with experimentally measured properties. Radioactive decay of the actinide elements is calculated to contribute 10 to 25% of the thermal power of spent low enrichment 235U fuels at postirradiation times between one day and three years. Gamma radiation per unit mass of 30-day-cooled LMFBR core fuel is calculated to exceed that from 90-day-cooled PWR fuel by a factor of 30 in the higher energy groups, and spontaneous fission neutron production per gram of spent LMFBR core fuel is found to exceed that of PWR fuel by a factor of 3 at these times.
