Improved design and construction of an ionization chamber for the CSNS beam loss monitor (BLM)

TIAN Jian-Min; XU Mei-Hang; ZHAO Zhong-Liang; CHEN Chang; RUAN Xiang-Dong; CHEN Yuan-Bo; XU Tao-Guang; LU Shuang-Tong

doi:10.1088/1674-1137/36/4/006

Chinese Physics C> 2012, Vol. 36> Issue(4) : 329-333 DOI: 10.1088/1674-1137/36/4/006

Improved design and construction of an ionization chamber for the CSNS beam loss monitor (BLM)

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Abstract：
Based on the first ionization chamber (IC) prototype, the structure, working gas component and electrode material of the IC are improved. The test of the improved IC shows that the plateau length is about 2000 V, the plateau slope is less than 0.2%/100 V, the sensitivity is 19.6 pA/rad·h^-1, the up-limitation of the linearity can be up to 3.6×10⁵ rad/h, and the applied voltage can be operated to 3500 V. The test results show that the performance of the improved IC meets the requirements of the beam loss monitor.

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TIAN Jian-Min, XU Mei-Hang, ZHAO Zhong-Liang, CHEN Chang, RUAN Xiang-Dong, CHEN Yuan-Bo, XU Tao-Guang and LU Shuang-Tong. Improved design and construction of an ionization chamber for the CSNS beam loss monitor (BLM)[J]. Chinese Physics C, 2012, 36(4): 329-333. doi: 10.1088/1674-1137/36/4/006

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Received: 2011-06-21
Revised: 2011-08-31

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沈阳化工大学材料科学与工程学院沈阳 110142

Improved design and construction of an ionization chamber for the CSNS beam loss monitor (BLM)

Corresponding author: XU Mei-Hang,

Received Date: 2011-06-21
Accepted Date: 2011-08-31
Available Online: 2012-04-05

Abstract: Based on the first ionization chamber (IC) prototype, the structure, working gas component and electrode material of the IC are improved. The test of the improved IC shows that the plateau length is about 2000 V, the plateau slope is less than 0.2%/100 V, the sensitivity is 19.6 pA/rad·h^-1, the up-limitation of the linearity can be up to 3.6×10⁵ rad/h, and the applied voltage can be operated to 3500 V. The test results show that the performance of the improved IC meets the requirements of the beam loss monitor.