Sealed gaseous photomultiplier with CsI photocathode
Sealed gaseous photomultiplier with CsI photocathode
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DOI：
10.1016/j.nima.2010.06.314
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发表时间：
2011-02
影响因子：
1.4
通讯作者：
F. Tokanai;T. Sumiyoshi;H. Sugiyama;T. Okada;N. Ohishi;H. Sakurai;S. Gunji;S. Kishimoto
中科院分区：
文献类型：
--
作者：
F. Tokanai;T. Sumiyoshi;H. Sugiyama;T. Okada;N. Ohishi;H. Sakurai;S. Gunji;S. Kishimoto
研制了一种以CsI光电阴极为阴极的密封式气体光电倍增管（PMT），并采用Pyrex玻璃制成的微图案气体探测器（MPGD）。采用微爆破技术（MB）制备了一种新型孔式MPGD。本文研究了在700 ℃气压下，用半透明CsI光电阴极对Ne（90%）+i-C_4 H_（10）和Ne（90%）+CF_4（10%）两种不同混合气体的光电倍增管进行了测量。用微喷砂玻璃板（MB-GP）对两种氖混合物都获得了高达105的增益。在波长为170 nm的紫外光下，获得了高达0.5%的量子效率。介绍了充氖混合气体的气体光电倍增管的老化试验结果和在强磁场环境中的特性。
A sealed gaseous photomultiplier tube (PMT) with a CsI photocathode has been developed using a micropattern gas detector (MPGD) made of Pyrex glass. A microblasting technique (MB) was employed for the production of a new hole-type MPGD. We investigated gaseous PMTs with a semi-transparent CsI photocathode for two different gas mixtures of Ne(90%)+i-C4H10(10%) and Ne (90%)+CF4(10%) at a gas pressure of 700torr. Gains of up to 105were attained with the microblasted glass plate (MB-GP) for both neon gas mixtures. Quantum efficiencies of up to 0.5% were obtained for UV light at the wavelength of 170nm. The results of the aging test and the characteristics in a high magnetic-field environment are described for the gaseous PMT filled with neon gas mixture.