Monte-Carlo Simulation for Shielding of Cold Neutron Triple-axis Spectrometer

SONG Jian-ming; YIN Yan-peng; LI Jian; LIU Li-juan; WANG Hong; SUN Guang-ai

doi:10.11804/NuclPhysRev.30.01.047

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Article Navigation > Nuclear Physics Review > 2013 > 30(1): 47-51

SONG Jian-ming, YIN Yan-peng, LI Jian, LIU Li-juan, WANG Hong, SUN Guang-ai. Monte-Carlo Simulation for Shielding of Cold Neutron Triple-axis Spectrometer[J]. Nuclear Physics Review, 2013, 30(1): 47-51. doi: 10.11804/NuclPhysRev.30.01.047

Citation:

SONG Jian-ming, YIN Yan-peng, LI Jian, LIU Li-juan, WANG Hong, SUN Guang-ai. Monte-Carlo Simulation for Shielding of Cold Neutron Triple-axis Spectrometer[J]. Nuclear Physics Review, 2013, 30(1): 47-51. doi: 10.11804/NuclPhysRev.30.01.047

Monte-Carlo Simulation for Shielding of Cold Neutron Triple-axis Spectrometer

doi: 10.11804/NuclPhysRev.30.01.047

Key Laboratory of Neutron Physics and Institute of Nuclear Physics and Chemistry,China Academy of Engineering Physics, Mianyang 621900, Sichuan, China

Received Date: 1900-01-01
Rev Recd Date: 1900-01-01
Publish Date: 2013-03-20

Abstract

The shielding of Cold neutron Triple-Axis Spectrometer( CTAS ) is important for radiation safety of workers, and reduce the background of scattering hall as well as enhancing the ratio of signal-to-noise. In this study, Monte-Carlo simulation was performed to conduct the calculation on the shielding of CTAS. To increase the calculation efficiency, neutron source was obtained by using Mcstas code. The results indicate that, in the case of heavy concrete ( density 4.6 g/cm³ ) with thickness of 350 mm for the shielding behind the monochromater, and heavy concrete ( density 3.6 g/cm³ ) with thickness of 300 mm for the other monochromater shielding, as well as the heavy concrete ( density 3.6 g/cm³ ) with thickness of 150 mm for biological shielding, the dose rate outside shielding may meet the requirement of national standard of China.
- shielding,
- triple-axis spectrometer,
- neutron,
- γ ray
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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

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Monte-Carlo Simulation for Shielding of Cold Neutron Triple-axis Spectrometer

doi: 10.11804/NuclPhysRev.30.01.047

Key Laboratory of Neutron Physics and Institute of Nuclear Physics and Chemistry,China Academy of Engineering Physics, Mianyang 621900, Sichuan, China

Received Date: 1900-01-01
Rev Recd Date: 1900-01-01
Publish Date: 2013-03-20

Key words:

Abstract: The shielding of Cold neutron Triple-Axis Spectrometer( CTAS ) is important for radiation safety of workers, and reduce the background of scattering hall as well as enhancing the ratio of signal-to-noise. In this study, Monte-Carlo simulation was performed to conduct the calculation on the shielding of CTAS. To increase the calculation efficiency, neutron source was obtained by using Mcstas code. The results indicate that, in the case of heavy concrete ( density 4.6 g/cm³ ) with thickness of 350 mm for the shielding behind the monochromater, and heavy concrete ( density 3.6 g/cm³ ) with thickness of 300 mm for the other monochromater shielding, as well as the heavy concrete ( density 3.6 g/cm³ ) with thickness of 150 mm for biological shielding, the dose rate outside shielding may meet the requirement of national standard of China.

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