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Photon transport effect on intra-subassembly thermal power distribution in fast reactor
| Title: | Photon transport effect on intra-subassembly thermal power distribution in fast reactor |
| Authors: | Chiba, Go Browse this author →KAKEN DB | | Tsuji, Masashi Browse this author | | Narabayashi, Tadashi Browse this author |
| Keywords: | Thermal power distribution | | Fast reactors | | Photon transport |
| Issue Date: | Mar-2014 |
| Publisher: | Pergamon-elsevier science ltd |
| Journal Title: | Annals of nuclear energy |
| Volume: | 65 |
| Start Page: | 41 |
| End Page: | 46 |
| Publisher DOI: | 10.1016/j.anucene.2013.10.030 |
| Abstract: | In order to accurately predict intra-subassembly thermal power distribution in a fast reactor, neutron and photon transport calculations are carried out with a multi-purpose reactor physics calculation code system CBZ. All the fission fragment nuclide are treated explicitly during fuel depletion, and irradiation time-dependent energy spectra of delayed fission gamma-rays emitted from all the fission fragment nuclides are precisely simulated. Time-dependent delayed beta-ray emission and transmutations of fission fragment nuclide by neutron-nuclide reactions are also taken into account. A fuel subassembly model of Japanese prototype fast reactor Monju is used for numerical calculations, and their two-dimensional geometric feature is precisely modeled by a ray-tracing-based collision probability method implemented in CBZ. When the photon transport is considered, total thermal powers in fissile material regions are reduced by about 1.5% except at the beginning of fuel depletion. (C) 2013 Elsevier Ltd. All rights reserved. |
| Type: | article (author version) |
| URI: | http://hdl.handle.net/2115/55139 |
| Appears in Collections: | 工学院・工学研究院 (Graduate School of Engineering / Faculty of Engineering) > 雑誌発表論文等 (Peer-reviewed Journal Articles, etc)
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Submitter: 千葉 豪
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