Journal
NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION A-ACCELERATORS SPECTROMETERS DETECTORS AND ASSOCIATED EQUIPMENT
Volume 598, Issue 1, Pages 163-165Publisher
ELSEVIER SCIENCE BV
DOI: 10.1016/j.nima.2008.08.018
Keywords
Particle identification; Aerogel; Time resolution; Cosmic tests
Categories
Funding
- [School-5655.2008.2]
- [RFBR 08-02-00328-a]
- [08-02-00634-a]
- [08-02-00660-a]
- [07-02-00104-a]
- [06-02-16192-a]
- [06-02-16273-a]
- [06-02-16294-a]
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The paper is devoted to the cosmic tests of particle identification system for the SND detector at VEPP-2000. The goal of the tests is to measure main parameters of the system: average signal for the relativistic particles, nonuniformity of the light collection, and time resolution. The measurements of the average signal were done in five points of the counter. The obtained value of the signal is about 10 photoelectrons. The time resolution is about 2 ns. The time dependence of the average amplitude was measured also. It was shown that average amplitude of the signal decreases with characteristic time of about two years. The cause of the signal decrease is discussed. (C) 2008 Elsevier BY. All rights reserved.
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