Preliminary shielding analysis for the CSNS target station monolith

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ZHANG Bin, CHEN Yi-Xue, YANG Shou-Hai, WU Jun, YIN Wen, LIANG Tian-Jiao and JIA Xue-Jun. Preliminary shielding analysis for the CSNS target station monolith[J]. Chinese Physics C, 2010, 34(11): 1775-1778. doi: 10.1088/1674-1137/34/11/021
ZHANG Bin, CHEN Yi-Xue, YANG Shou-Hai, WU Jun, YIN Wen, LIANG Tian-Jiao and JIA Xue-Jun. Preliminary shielding analysis for the CSNS target station monolith[J]. Chinese Physics C, 2010, 34(11): 1775-1778.  doi: 10.1088/1674-1137/34/11/021 shu
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Received: 2009-12-15
Revised: 2010-03-15
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Preliminary shielding analysis for the CSNS target station monolith

    Corresponding author: ZHANG Bin,

Abstract: 

The construction of the China Spallation Neutron Source (CSNS) has been initiated at Dongguan, Guangdong, China. In spallation neutron sources the target station monolith is contaminated by a large number of fast neutrons whose energies can be as large as those of the protons of the proton beam directed towards the tungsten target. A detailed radiation transport analysis of the target station monolith is important for the construction of the CSNS. The analysis is performed using the coupled Monte Carlo and multi-dimensional discrete ordinates method. Successful elimination of the primary ray effects via the two-dimensional uncollided flux and first collision source methodology is also illustrated. The dose at the edge of the monolith is calculated. The results demonstrate that the doses received by the hall staff members are below the required standard limit.

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