PROGRESS IN ULTRAFAST CSI-PHOTOCATHODE GASEOUS IMAGING PHOTOMULTIPLIERS

被引：57

作者：

DANGENDORF, V ^{[1
]}

BRESKIN, A ^{[1
]}

CHECHIK, R ^{[1
]}

SCHMIDTBOCKING, H ^{[1
]}

机构：

[1] UNIV FRANKFURT,INST KERNPHYS,W-6000 FRANKFURT,GERMANY

来源：

NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION A-ACCELERATORS SPECTROMETERS DETECTORS AND ASSOCIATED EQUIPMENT | 1991年 / 308卷 / 03期

关键词：

D O I：

10.1016/0168-9002(91)90065-X

中图分类号：

TH7 [仪器、仪表];

学科分类号：

0804 ; 080401 ; 081102 ;

摘要：

A large area, low-pressure gas-filled UV-imaging photomultiplier with CsI-photocathode is presented. The double-step electron multiplier with a 10 Torr CH4 gas-filling enables stable high gain operation. The detection efficiency of photons in the wavelength range-lambda approximately 170 nm (Xe scintillation light) is about 10% for 200 to 2000 nm thick photocathodes. We investigated the influence of various substrate materials, the thickness of the CsI-layer, the gas pressure and gas composition on the performance of the photocathode. Furthermore we studied the stability of the photocathode under different operating conditions and its sensitivity to air. Measurements of the timing characteristics of the device yielded an ultimate time resolution of 350 ps (FWHM).

引用

页码：519 / 532

页数：14

共 39 条

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