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DENG Yong-jun1,2, ZHANG Zhi-hua~2, QIAN Da-zhi~2, MA Xu-sheng~3 (1.China Institute of Atomic Energy, P.O.Box 275-49, Beijing 102413, China; 2.Institute of Nuclear Physics and Chemistry, China Academy of Engineering Physics, Mianyang 621900, China;3. Shanghai Nuclear Engineering Research and Desi. Analysis of Disturbance Caused by the Backing Material in Sub-moderated Neutron Field Measurement of the Core Flux Density[J]. Atomic Energy Science and Technology, 2005, 39(1): 84-84. DOI: 10.7538/yzk.2005.39.01.0084
Citation: DENG Yong-jun1,2, ZHANG Zhi-hua~2, QIAN Da-zhi~2, MA Xu-sheng~3 (1.China Institute of Atomic Energy, P.O.Box 275-49, Beijing 102413, China; 2.Institute of Nuclear Physics and Chemistry, China Academy of Engineering Physics, Mianyang 621900, China;3. Shanghai Nuclear Engineering Research and Desi. Analysis of Disturbance Caused by the Backing Material in Sub-moderated Neutron Field Measurement of the Core Flux Density[J]. Atomic Energy Science and Technology, 2005, 39(1): 84-84. DOI: 10.7538/yzk.2005.39.01.0084
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  • In the course of the core flux density measurement, detector foil and its backing materials are introduced into the gap between slab-type fuel element. Thus the moderale medium is changed and as well as the moderation and absoration of neutrons. It brings error in measurement results, which should been considered. In this paper, the disturbance to the neutron field caused by the appearance of different backing materials is studied in detail with Monte-Carlo methods, which helps us in choosing the backing material reasonably and the data analysis in neutron flux measurements.
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