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Radiation Protection & Shielding
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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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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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.
Pekka Jauho, Markku Rajamäki
Nuclear Science and Engineering | Volume 43 | Number 2 | February 1971 | Pages 145-153
Technical Paper | doi.org/10.13182/NSE71-A21262
Articles are hosted by Taylor and Francis Online.
The solutions to the one-dimensional energy-dependent Boltzmann equations for two different media are shown to possess such a full-range completeness property that an arbitrary function satisfying a Hölder condition can be expanded in terms containing solutions to both equations. These solutions are given by Leonard and Ferziger. This property makes it possible to solve energy-dependent neutron transport problems for two adjacent media. In comparison with half-space problems, one must solve two more inhomogeneous Fredholm integral equations. The scheme of the extension to multilayer system is also represented. In using the multigroup method, the series solutions of the Fredholm equations are rapidly convergent, if the energy dependences of the total cross sections in both adjacent media are roughly of the same form.