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
收藏
页码：270 / 273
页数：4
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