Gap uniformity study of a resistive Micromegas for the Multi-purpose Time Projection Chamber (MTPC) at Back-n white neutron source

被引：6

作者：

Jia, Weihua ^{[1
,2
,3
]}

Lv, You ^{[2
,3
]}

Zhang, Zhiyong ^{[4
,5
]}

Chen, Haolei ^{[4
,5
]}

Chen, Zhen ^{[4
,5
]}

Wang, Jiaqi ^{[4
,5
]}

Zhao, Maoyuan ^{[4
,5
]}

Feng, Changqing ^{[4
,5
]}

Liu, Shubin ^{[4
,5
]}

Zhang, Mohan ^{[2
]}

Gu, Minhao ^{[2
]}

Fan, Ruirui ^{[2
,4
]}

Li, Yang ^{[2
,3
,5
]}

Sun, Yankun ^{[2
,3
]}

Jiang, Wei ^{[2
,3
]}

Chen, Yonghao ^{[2
,3
]}

Ning, Changjun ^{[2
,3
]}

Bai, Haofan ^{[6
]}

Zhang, Guohui ^{[6
]}

Zhang, Qingmin ^{[1
]}

Yi, Han ^{[2
,3
]}

机构：

[1] Xi An Jiao Tong Univ, Sch Energy & Power Engn, Dept Nucl Sci & Technol, Xian 710049, Peoples R China

[2] Chinese Acad Sci, Inst High Energy Phys, Beijing 100049, Peoples R China

[3] Neutron Source Sci Ctr, Dongguan 523803, Peoples R China

[4] State Key Lab Particle Detect & Elect, Beijing 100049, Peoples R China

[5] Univ Sci & Technol China, Dept Modern Phys, Hefei 230026, Peoples R China

[6] Peking Univ, Inst Heavy Ion Phys, Sch Phys, State Key Lab Nucl Phys & Technol, Beijing 100871, Peoples R China

来源：

NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION A-ACCELERATORS SPECTROMETERS DETECTORS AND ASSOCIATED EQUIPMENT | 2022年 / 1039卷

基金：

中国国家自然科学基金;

关键词：

Time projection chamber; Resistive micromegas; Gap uniformity; Gas gain; Charge spreading; ACTIVE TARGET; DETECTORS; TPC;

D O I：

10.1016/j.nima.2022.167157

中图分类号：

TH7 [仪器、仪表];

学科分类号：

0804 ; 080401 ; 081102 ;

摘要：

A Multi-purpose Time Projection Chamber prototype based on a resistive Micromegas technique has been proposed, designed and fabricated at China Spallation Neutron Source to measure the cross sections of neutron -induced light-charged particle emission reactions and fission reactions at the Back-n white neutron source. For the requirements of working stability with high voltage and high granularity of readout, the prototype is fabricated by applying a resistive Micromegas with high-density pixelated anode plane. In order to fully understand the process of charge spreading and signal induction on the anode plane covered by a resistive layer, a simulation method is developed and the energy correction function is then obtained, which can be used in the further energy correction in the experimental data analysis. Measured with a Fe-55 X-ray source, the uniformity of gain and avalanche gap are specially analyzed by combining the simulated gas avalanche parameters with fitting of experimental data in which the parallel plate avalanche model is adopted.

引用

页数：10

共 9 条

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Feng, C.
Chen, H.
Fan, R.
Yi, H.
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Gu, M.
Zhang, M.
Jia, W.
Wang, J.
Liu, S.
JOURNAL OF INSTRUMENTATION, 2022, 17 (05)
[2] Performance study of the Multi-purpose Time Projection Chamber (MTPC) using a four-component alpha source
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Zhang, Zhiyong
Chen, Haolei
Chen, Zhen
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Feng, Changqing
Liu, Shubin
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Gu, Minhao
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NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION A-ACCELERATORS SPECTROMETERS DETECTORS AND ASSOCIATED EQUIPMENT, 2024, 1060
[3] Design and Testing of a Prototype ASIC for the MTPC Readout at CSNS Back-n White Neutron Source
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[4] First experiment on neutron resonance radiography with a Micromegas detector at the Back-n white neutron source
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JOURNAL OF INSTRUMENTATION, 2021, 16 (02)
[5] A study on relative neutron sensitivity of Yb:YAG with CSNS Back-n white neutron source
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JOURNAL OF INSTRUMENTATION, 2022, 17 (08):
[8] Real-time digital trigger system for GTAF-II at CSNS Back-n white neutron source
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