Quantum Efficiency of Hybrid Photon Detectors for the LHCb RICH

被引：0
|
作者：
Lambert, R. W. [1 ]
机构：
[1] Univ Edinburgh, Dept Phys & Astron, Edinburgh EH9 3JZ, Midlothian, Scotland
来源：
ASTROPARTICLE, PARTICLE AND SPACE PHYSICS, DETECTORS AND MEDICAL PHYSICS APPLICATIONS | 2008年 / 4卷
关键词：
Hybrid photon detector; LHCb; RICH; quantum efficiency;
D O I：
10.1142/9789812819093_0015
中图分类号：
O59 [应用物理学];
学科分类号：
摘要：
The production of Hybrid Photon Detectors to be used as the single-photon sensors for the RICH detectors of the LHCb experiment has recently finished. We present the quantum efficiency measurements of the entire sample of 550 tubes. The manufacturer has succeeded in consistently improving the quantum efficiency of the employed S20-type multi-alkali photocathode above our expectations, by a relative 27% integrated over the energy spectrum. We also report measurements of the vacuum quality using the photocurrent of the device as a monitor for possible vacuum degradation.
引用
收藏
页码：85 / 89
页数：5
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