A high-resolution TOF detector-A possible way to compete with a RICH detector

被引：29

作者：

Va'vra, J. ^{[1
]}

Ertley, C. ^{[2
]}

Leith, D. W. G. S. ^{[1
]}

Ratcliff, B. ^{[1
]}

Schwiening, J. ^{[1
]}

机构：

[1] Stanford Univ, Stanford Linear Accelerator Ctr, Stanford, CA 94309 USA

[2] Argonne Natl Lab, Argonne, IL 60439 USA

来源：

NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION A-ACCELERATORS SPECTROMETERS DETECTORS AND ASSOCIATED EQUIPMENT | 2008年 / 595卷 / 01期

关键词：

Photodetectors; Cherenkov detectors; RICH; TOF;

D O I：

10.1016/j.nima.2008.07.021

中图分类号：

TH7 [仪器、仪表];

学科分类号：

0804 ; 080401 ; 081102 ;

摘要：

Using two identical 64-pixel Burle/Photonis MCP-PMTs (micro-channel plate PMT) to provide start and stop signals, we have achieved a timing resolution of sigma(Single_detector)similar to 7.2 ps for N-pe similar to 100 photoelectrons (N-pe) with a laser diode providing a 1 mm spot on the MCP window. The limiting resolution achieved was sigma(Single_detector)similar to 5.0 ps for N-pe similar to 250, for which we estimate the MCP-PMT contribution of sigma(MCP-PMT)similar to 4.5 ps. The electronics contribution is estimated as sigma(Electronics) = 3.42 ps. These results suggest that an ultra-high-resolution TOF detector may become a reality at future experiments one day. (C) 2008 Published by Elsevier B.V.

引用

页码：270 / 273

页数：4

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