Benchmark Analysis of Criticality Experiments in the TRIGA Mark 2 Using a Continuous Energy Monte Carlo Code MCNP
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- MATSUMOTO Tetsuo
- Atomic Energy Research Laboratory, Musashi Institute of Technology
書誌事項
- タイトル別名
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- Benchmark Analysis of Criticality Experiments in the TRIGA Mark II Using a Continuous Energy Monte Carlo Code MCNP.
- Benchmark Analysis of Criticality Exper
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説明
The criticality analysis of the TRIGA-II benchmark experiment at the Musashi Institute of Technology Research Reactor (MuITR, 100kW) was performed by the three-dimensional continuous-energy Monte Carlo code (MCNP4A). To minimize errors due to an inexact geometry model, all fresh fuels and control rods as well as vicinity of the core were precisely modeled. Effective multiplication factors (keff) in the initial core critical experiment and in the excess reactivity adjustment for the several fuel-loading patterns as well as the fuel element reactivity worth distributions were used in the validation process of the physical model and neutron cross section data from the ENDF/B-V evaluation. The calculated keff overestimated the experimental data by about 1.0%Δk/k for both the initial core and the several fuel-loading arrangements (fuels or graphite elements were added only to the outer-ring), but the discrepancy increased to 1.8%Δk/k for the some fuel-loading patterns (graphite elements were inserted into the inner-ring). The comparison result of the fuel element worth distribution showed above tendency. All in all, the agreement between the MCNP predictions and the experimentally determined values is good, which indicates that the Monte Carlo model is enough to simulate criticality of the TRIGA-II reactor.
収録刊行物
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- Journal of Nuclear Science and Technology(日本原子力学会英文論文誌)
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Journal of Nuclear Science and Technology(日本原子力学会英文論文誌) 35 (9), 662-670, 1998
一般社団法人 日本原子力学会
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詳細情報 詳細情報について
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- CRID
- 1390282679071676928
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- NII論文ID
- 10002080064
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- NII書誌ID
- AA00703720
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- COI
- 1:CAS:528:DyaK1cXntlKls78%3D
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- ISSN
- 18811248
- 00223131
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- NDL書誌ID
- 4565730
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- 本文言語コード
- en
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- データソース種別
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- JaLC
- NDL
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- CiNii Articles
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- 使用不可