A method to enhance the sensitivity of photomultipliers for Air Cherenkov Telescopes

被引：20

作者：

Paneque, D

Gebauer, HJ

Lorenz, E

Martinez, M

Mase, K

Mirzoyan, R

Ostankov, A

Schweizer, T

机构：

[1] Max Planck Inst Phys & Astrophys, D-80805 Munich, Germany

[2] Univ Autonoma Barcelona, Inst Fis Altes Energies, E-08193 Barcelona, Spain

[3] Inst Cosm Ray Res, Kasiwa, Chiba, Japan

来源：

NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION A-ACCELERATORS SPECTROMETERS DETECTORS AND ASSOCIATED EQUIPMENT | 2003年 / 504卷 / 1-3期

关键词：

photomultipliers; quantum efficiency; wavelength shifter; Air Cherenkov Telescopes;

D O I：

10.1016/S0168-9002(03)00805-2

中图分类号：

TH7 [仪器、仪表];

学科分类号：

0804 ; 080401 ; 081102 ;

摘要：

A simple method to enhance the sensitivity of photomultipliers (PMTs) will be described. The method is based on applying onto the cathode window a specially prepared lacquer containing a wavelength shifter (WLS). A rapidly evaporating lacquer solvent results in a milky surface that acts as a photon scatterer. Applying the method to the ET 9116A PMT (hemispherical borosilicate window and rubidium-bialkali photocathode) resulted in a good sensitivity in the short-wave UV range as well as a greater than or similar to20% increase above 330 nm. Details of the study, the procedure and a simple model for the explanation of the enhancement are presented. (C) 2003 Elsevier Science B.V. All rights reserved.

引用

页码：109 / 115

页数：7

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Ostankov, A
Jacon, P
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Lubsandorzhiev, B
Martinez, M
Mirzoyan, R
Vasiljev, R
Weinfurtner, S
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