| Issue |
EPJ Web Conf.
Volume 302, 2024
Joint International Conference on Supercomputing in Nuclear Applications + Monte Carlo (SNA + MC 2024)
|
|
|---|---|---|
| Article Number | 13005 | |
| Number of page(s) | 11 | |
| Section | Monte Carlo Methods for Reactor Physics | |
| DOI | https://doi.org/10.1051/epjconf/202430213005 | |
| Published online | 15 October 2024 | |
https://doi.org/10.1051/epjconf/202430213005
Application of Combined Fission Matrix to Plate-type Research Reactor
Department of Mechanical Engineering, Shanghai Jiaotong University, Shanghai, China
* e-mail: donghaohe@sjtu.edu.cn
Published online: 15 October 2024
The Combined Fission Matrix (CFM) method entails the instantaneous estimation of the entire system's fission matrix by amalgamating fission matrices from a pre-existing database. This approach allows for the rapid and accurate determination of the effective multiplication factor (keff) and the distribution of fission rates across the reactor system. This work applies the CFM method to the Japan Research Reactor-3 (JRR-3M), a water-cooled plate-type reactor. The CFM method demonstrates a high level of agreement with Monte Carlo (MC) simulation results, completing calculations within a minute. In the two cases of 'All Absorbers In' and 'All Absorbers Out', this method achieved a low root-mean-square (RMS) error of only 0.4% and 1% , respectively, with keff-error of 44 pcm and 24 pcm .
© The Authors, published by EDP Sciences, 2024
This is an Open Access article distributed under the terms of the Creative Commons Attribution License 4.0, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
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