Lifetime-extended MCP-PMT

被引：34

作者：

Jinno, T. ^{[1
]}

Mori, T. ^{[1
]}

Ohshima, T. ^{[1
]}

Arita, Y. ^{[1
]}

Inami, K. ^{[1
]}

Ihara, T. ^{[2
]}

Nishizawa, H. ^{[2
]}

Sasaki, T. ^{[2
]}

机构：

[1] Nagoya Univ, Dept Phys, Chikusa Ku, Nagoya, Aichi 4648602, Japan

[2] Hamamatsu Photon KK Electron Tube Div Manuf 1, Dept 43, Shizuoka 4380193, Japan

来源：

NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION A-ACCELERATORS SPECTROMETERS DETECTORS AND ASSOCIATED EQUIPMENT | 2011年 / 629卷 / 01期

基金：

日本学术振兴会;

关键词：

MCP-PMT; Photocathode; QE; Lifetime; TOP counter; MULTIANODE PMT; CROSS-TALK; COUNTER; PS;

D O I：

10.1016/j.nima.2010.10.145

中图分类号：

TH7 [仪器、仪表];

学科分类号：

0804 ; 080401 ; 081102 ;

摘要：

In order to develop a long-lifetime MCP-PMT under high rates of circumstance, we investigated the degradation of the quantum efficiency (QE) of PMT's with a multialkali photocathode. We found that not only positive ions, but also neutral residual gases would damage the photocathode resulting in an enhancement of the work function: their countermeasures were established in newly manufactured square-shaped MCP-PMT's with 4 or 4 x 4 multi-anodes. The performances of the PMT's were measured: QE was stable up to an integrated amount of anode output charge of 2-3 C/cm(2), while keeping other basic performances steady, such as the time resolution for single photons (sigma(TTS)) of similar or equal to 40 ps, a photoelectron collection efficiency (CE) of 60%, a multiplication gain (G) of a few x 10(6), and dark counts of 20-300 Hz. The causes of QE degradation are discussed. (C) 2010 Elsevier B.V. All rights reserved.

引用

页码：111 / 117

页数：7

共 16 条

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