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Highly segmented large-area hybrid photodiodes with bialkali photocathodes and enclosed VLSI readout electronics

被引：28
作者：
Braem, A
Chesi, E
Dulinski, W
Filthaut, F
Go, A
Joram, C [1 ]
Séguinot, J
Weilhammer, P
Wenzel, H
Wicht, P
Ypsilantis, T
机构：
[1] CERN, Div EP, CH-1211 Geneva 23, Switzerland
[2] LEPSI, Strasbourg, France
[3] Coll France, Paris, France
[4] Ist Nazl Fis Nucl, I-40126 Bologna, Italy
来源：
NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION A-ACCELERATORS SPECTROMETERS DETECTORS AND ASSOCIATED EQUIPMENT | 2000年 / 442卷 / 1-3期
关键词：
photodetector; hybrid photodiode; HPD; photocathode; bialkali;
D O I：
10.1016/S0168-9002(99)01210-3
中图分类号：
TH7 [仪器、仪表];
学科分类号：
0804 ; 080401 ; 081102 ;
摘要：
We report on the principles, design, fabrication, and operation of a highly segmented, large-area hybrid photodiode, which is being developed in the framework of the LHCb RICH project. The device consists of a cylindrical, 127 mm diameter vacuum envelope capped with a spherical borosilicate UV-glass entrance window, with an active-to-total-area fraction of 81%, A fountain-focusing electron optics is used to demagnify the image onto a 50 mm diameter silicon sensor, containing 2048 pads of size 1 x 1 mm(2). The sensor pads are read out by 16 analogue multiplexed readout chips enclosed in the vacuum envelope. A large ultra-high vacuum plant for the evaporation of visible-light transmittive bialkali (K2CsSb) photocathodes and subsequent tube encapsulation has been built and successfully operated. The characteristics and performance of the first HPDs have been measured to be in full agreement with expectations. (C) 2000 Elsevier Science B.V. All rights reserved.
引用
收藏
页码：128 / 135
页数：8
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