Study of new substrate THGEMs with low neutron scattering and low radioactivity
Zhang X(张烜); Niu SL(牛顺利); Xie YG(谢宇广); Yan JQ(颜嘉庆); Lv JG(吕军光); Hu T(胡涛); Zhou L(周莉); Wang ZG(王志刚); Cai X(蔡啸); Fang J(方建); Yu BX(俞伯祥); Sun XL(孙希磊); Liu Y(刘义); Liu WJ(刘万金); Sun LJ(孙丽君); Zhang; X; Niu; S; Xie; Y; Yan; J; Lu; J; Hu; T; Wang; Z; Cai; X; Fang; J; Yu; B; Sun; X; Liu; Y; Liu; W; Sun; L
刊名JOURNAL OF INSTRUMENTATION
2015
卷号10页码:P10043
关键词Micropattern gaseous detectors (MSGC, GEM, THGEM, RETHGEM, MHSP MICROPIC, MICROMEGAS, InGrid, etc) Neutron detectors (cold, thermal, fast neutrons)
学科分类Instruments & Instrumentation
DOI10.1088/1748-0221/10/10/P10043
通讯作者谢宇广
文章类型Article
英文摘要New types of Thick Gaseous Electron Multipliers (THGEMs) made of PCB-type substrates, including Ceramic, Kapton, PTFE, and in addition to FR-4, were developed for applications requiring low neutron absorption, scattering, and low natural radioactivity, such as the THGEM-based neutron detector, and the THGEM-based gaseous multiplier (GPM). Using Geant4 simulation, the result of the total neutron absorption and scattering ratio of bare substrate is Kapton( high) > FR-4 > Ceramic > PTFE (low). The Ceramic and PTFE substrates have lower ratios about 0.707% and 0.635% per layer(0.2 mm thick) respectively. The gamma-induced electron background is the reverse, Ceramic > PTFE > FR-4 > Kapton, from 1.5% to 0.7% at 1.0MeV, which induces highest electron background in the range of 0 similar to 7 MeV. The natural radioactivity background was measured for these types of substrate samples. The Ceramic substrate has lower radioactivity, Th-232 = 8.8 +/- 0.9 Bq/kg, U-238 = 6.3 +/- 0.9 Bq/kg, and K-40 is too low to be detected. Some THGEM samples were produced by these four types of substrates in the same shape: 0.2-mm thickness, 0.2-mm hole diameter, 0.6-mm pitch, and 70-mu m rim. The performances of these new substrate THGEMs are promising. The effective gain is at the 10(4) level and the gain was stable during more than 100 hours continuous test. The energy resolution @Ar+IsoB = 97:3 is at the level of 20% to 27%. These new substrate THGEMs are available in 200x200 mm(2) size and even larger, some of them are applied to neutron flux monitor detector and gaseous photomultipliers (GPM).
类目[WOS]Instruments & Instrumentation
收录类别SCI
WOS记录号WOS:000367674700045
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被引频次:1[WOS]   [WOS记录]     [WOS相关记录]
文献类型期刊论文
条目标识符http://ir.ihep.ac.cn/handle/311005/229028
专题中国科学院高能物理研究所_实验物理中心_期刊论文
中国科学院高能物理研究所_实验物理中心
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Zhang X,Niu SL,Xie YG,et al. Study of new substrate THGEMs with low neutron scattering and low radioactivity[J]. JOURNAL OF INSTRUMENTATION,2015,10:P10043.
APA 张烜.,牛顺利.,谢宇广.,颜嘉庆.,吕军光.,...&L.(2015).Study of new substrate THGEMs with low neutron scattering and low radioactivity.JOURNAL OF INSTRUMENTATION,10,P10043.
MLA 张烜,et al."Study of new substrate THGEMs with low neutron scattering and low radioactivity".JOURNAL OF INSTRUMENTATION 10(2015):P10043.
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