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2025 ANS Winter Conference & Expo
November 9–12, 2025
Washington, DC|Washington Hilton
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The current status of heat pipe R&D
Idaho National Laboratory under the Department of Energy–sponsored Microreactor Program recently conducted a comprehensive phenomena identification and ranking table (PIRT) exercise aimed at advancing heat pipe technology for microreactor applications.
D. M. Johnson, P. B. Woollam
Nuclear Science and Engineering | Volume 54 | Number 3 | July 1974 | Pages 254-262
Technical Paper | doi.org/10.13182/NSE74-A23416
Articles are hosted by Taylor and Francis Online.
Angular penetration gamma-ray spectra have been measured from a 60Co source in point and plane geometries with both homogeneous and heterogeneous combinations of various thicknesses of iron and concrete slabs. The results are presented in the form of angular flux as a function of angle of deviation for particular secondary energies. The pseudoequilibrium behavior, with regard to penetration depth, of the angular spectra from certain source geometries was observed, and methods are suggested as to how this property could be incorporated in a gamma-ray transport code.