Performance study of trial M-THGEM-猫眼课题宝

试验 M-THGEM 的性能研究

DOI：

10.1007/s41605-019-0150-y

发表时间：

2020-03

期刊：

Radiation Detection Technology and Methods

影响因子：

0.6

通讯作者：

中科院分区：

文献类型：

作者：

Shao-Qing Deng;Wen-Qi Yan;Dao-Jin Hong;Bo-Xiang Yu;Gao-Long Zhang;Yu-Guang Xie

M-THGEM是在THGEM的基础上发展起来的一种新型电子倍增器，具有高增益、良好的稳定性和均匀性。在小面积M-THGEM成功应用的基础上，提出了基于大体积气体探测器的大面积M-THGEM。为了满足大面积气体探测器的要求，需要对大面积M-THGEM的性能进行测试和研究，为M-THGEM的工艺和设计提供指导。方法将M-THGEM膜装入腔室中，在Fe/X射线源（5.9 keV）和工作气体Ar：iCH= 97：3的条件下完成测试。结果在小面积M-THGEM的基础上，完成了大面积M-THGEM的研究与设计。测量了基本性能。实验结果表明，在Ar：iCH= 97：3的工作气体下，增益可达~ 1000，Fe/X射线源（5.9keV）的能量分辨率达到29.4%，增益均匀性和稳定性良好。的M-THGEM显示出良好的性能，这将为今后的设计提供许多参考。

BackgroundM-THGEM is a new type of electron multiplier, which is developed with a high gain, good stability and uniformity based on THGEM. With the successful application of small area M-THGEM, the large-area M-THGEM is proposed based on large-volume gas detector.PurposeThe production of large-area M-THGEM is difficult compared with the small one with more holes and more stable instruments. To meet the requirements of large-area gas detectors, the performances of the large-area M-THGEM need to be measured and researched, which will provide a guidance on the process and design of the M-THGEM.MethodsThe M-THGEM membrane was loaded into a chamber to complete the test under the conditions ofFe/X-ray source (5.9 keV) and working gas Ar:iCH= 97:3. The performance of gain, energy resolution, uniformity and long-term stability can be tested.ResultsBased on the small area M-THGEM, the research and design of large-area M-THGEM withwere finished. The basic performances were measured. The results show that the gain with the working gas of Ar:iCH= 97:3 can reach to, and the energy resolution of theFe /X-ray source (5.9 keV) reaches 29.4% with a good gain uniformity and stability.ConclusionAt present, the production and measurement of the large-area M-THGEM has been finished. The M-THGEM ofshows a good performance, which will provide many references for the future design.