| Measurement and analysis of fission rates in a spherical mockup of uranium and polyethylene |
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| 作者姓名： | 朱通华 杨朝文 鹿心鑫 刘荣 韩子杰 蒋励 王玫 |
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| 作者单位： | 1 Institute of Nuclear Science and Technology, Sichuan University, Chengdu 610065, China;;2 Institute of Nuclear Physics and Chemistry, China Academy of Engineering Physics, Mianyang 621900, China |
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| 基金项目： | Supported by Chinese Special Project for ITER （2010GB111002） |
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| 摘 要： | Measurements of the reaction rate distribution were carried out using two kinds of Plate Micro Fission Chamber （PMFC）. The first is a depleted uranium chamber and the second an enriched uranium chamber. The material in the depleted uranium chamber is strictly the same as the material in the uranium assembly. With the equation solution to conduct the isotope contribution correction, the fission rate of 238U and 235U were obtained from the fission rate of depleted uranium and enriched uranium. Then, the fission count of 238U and 235U in an individual uranium shell was obtained. In this work, MCNP5 and continuous energy cross sections ENDF/BV.0 were used for the analysis of fission rate distribution and fission count. The calculated results were compared with the experimental ones. The calculation of fission rate of DU and EU were found to agree with the measured ones within 10% except at the positions in polyethylene region and the two positions near the outer surface. Because the fission chamber was not considered in the calculation of the fission counts of 238U and 235U, the calculated results did not agree well with the experimental ones.
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| 关 键 词： | 裂变率 浓缩铀 聚乙烯 测量 计算结果 样机 速度分布 裂变室 |
| 收稿时间： | 2013-2-27 |
Measurement and analysis of fission rates in a spherical mockup of uranium and polyethylene |
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| ZHU Tong-Hua,YANG Chao-Wen,LU Xin-Xin,LIU Rong,HAN Zi-Jie,JIANG Li,WANG Mei.Measurement and analysis of fission rates in a spherical mockup of uranium and polyethylene[J].High Energy Physics and Nuclear Physics,2013,37(12):22-26. |
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| Authors: | ZHU Tong-Hua YANG Chao-Wen LU Xin-Xin LIU Rong HAN Zi-Jie JIANG Li WANG Mei |
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| Institution: | [1]Institute of Nuclear Science and Technology, Sichuan University, Chengdu 610065, China [2]Institute of Nuclear Physics and Chemistry, China Academy of Engineering Physics, Mianyang 621900, China |
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| Abstract: | fission rate, depleted uranium, polyethylene, neutronics analysis |
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| Keywords: | fission rate depleted uranium polyethylene neutronics analysis |
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