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Title: Barrel calorimeter of the CMD-3 detector

The structure of the barrel calorimeter of the CMD-3 detector is presented in this work. The procedure of energy calibration of the calorimeter and the method of photon energy restoration are described. The distinctive feature of this barrel calorimeter is its combined structure; it is composed of two coaxial subsystems: a liquid xenon calorimeter and a crystalline CsI calorimeter. The calorimeter spatial resolution of the photon conversion point is about 2 mm, which corresponds to an angular resolution of ∼6 mrad. The energy resolution of the calorimeter is about 8% for photons with energy of 200 MeV and 4% for photons with energy of 1 GeV.
Authors:
; ; ;  [1] ;  [2] ; ; ; ; ; ; ; ; ; ; ; ; ; ; ;  [1]
  1. Russian Academy of Sciences, Budker Institute of Nuclear Physics, Siberian Branch (Russian Federation)
  2. University of Tokyo, Department of Physics (Japan)
Publication Date:
OSTI Identifier:
22471847
Resource Type:
Journal Article
Resource Relation:
Journal Name: Physics of Atomic Nuclei; Journal Volume: 78; Journal Issue: 13; Other Information: Copyright (c) 2015 Pleiades Publishing, Ltd.; Country of input: International Atomic Energy Agency (IAEA)
Country of Publication:
United States
Language:
English
Subject:
46 INSTRUMENTATION RELATED TO NUCLEAR SCIENCE AND TECHNOLOGY; CALIBRATION; ENERGY RESOLUTION; GEV RANGE; MEV RANGE; MULTIPARTICLE SPECTROMETERS; PARTICLE IDENTIFICATION; PHOTONS; SHOWER COUNTERS; SOLID SCINTILLATION DETECTORS; SPATIAL RESOLUTION; XENON