Chinese Physics C > 2010, Vol. 34 > Issue(11): 1775-1778 DOI: 10.1088/1674-1137/34/11/021

Preliminary shielding analysis for the CSNS target station monolith

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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.

References

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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

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Received: 2009-12-15
Revised: 2010-03-15

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通讯作者:陈斌, bchen63@163.com

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沈阳化工大学材料科学与工程学院沈阳 110142

Preliminary shielding analysis for the CSNS target station monolith

Corresponding author:ZHANG Bin,

Received Date:2009-12-15

Accepted Date:2010-03-15

Available Online:2010-11-05

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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Preliminary shielding analysis for the CSNS target station monolith

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通讯作者:陈斌, bchen63@163.com

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