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2025 ANS Winter Conference & Expo
November 9–12, 2025
Washington, DC|Washington Hilton
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Latest News
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.
Takashi Nakamura, Tomonori Hyodo
Nuclear Science and Engineering | Volume 36 | Number 2 | May 1969 | Pages 246-250
Technical Paper | doi.org/10.13182/NSE69-A19722
Articles are hosted by Taylor and Francis Online.
A semiempirical formula for the gamma-ray albedo of alternating layers is proposed. The values of the albedo calculated by this formula agree with the experimental ones for alternating layers of tin-aluminum and lead-aluminum slabs within ∼10%, except for the case of very thin alternating layers. This formula was applied to the angular distribution of photons backscattered by the alternating layers and the difference between experimental and calculated values was < 18%.
