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The Radiation Protection and Shielding Division is developing and promoting radiation protection and shielding aspects of nuclear science and technology — including interaction of nuclear radiation with materials and biological systems, instruments and techniques for the measurement of nuclear radiation fields, and radiation shield design and evaluation.
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ANS Student Conference 2025
April 3–5, 2025
Albuquerque, NM|The University of New Mexico
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Latest News
Norway’s Halden reactor takes first step toward decommissioning
The government of Norway has granted the transfer of the Halden research reactor from the Institute for Energy Technology (IFE) to the state agency Norwegian Nuclear Decommissioning (NND). The 25-MWt Halden boiling water reactor operated from 1958 to 2018 and was used in the research of nuclear fuel, reactor internals, plant procedures and monitoring, and human factors.
G. Winkler, V. Spiegel, C. M. Eisenhauer, D. L. Smith
Nuclear Science and Engineering | Volume 78 | Number 4 | August 1981 | Pages 415-419
Technical Note | doi.org/10.13182/NSE81-A21377
Articles are hosted by Taylor and Francis Online.
The average cross section for the reaction 63Cu(n, α)60Co has been measured absolutely in the 252Cf spontaneous fission neutron field by activation in compensated flux geometry with an accuracy of ∼2.4% (1α). A near-point source of 252Cf and a light mass source-detector assembly in a low-scattering environment was used. The resulting cross-section value was compared with calculated values obtained by convoluting the spectral distribution of 252Cf neutrons with existing energy-differential data for the reaction 63Cu(n, α)60Co. There is very good agreement (within 5%) between the experimental and the calculated average cross section if the results from a recent measurement of the 63Cu(n, α)60Co excitation function are used. Thus the reaction 63Cu(n, α)60Co, which is an important threshold reaction in reactor dosimetry, fulfills the conditions for a Category I neutron-dosimetry reaction for fission reactor applications.
