Published July 11, 1997 | Version v1
Journal article Metadata-only

Study of the radiation hardness of CsI(Tl) crystals for the BELLE detector

Creators

  • 1. Tokyo Inst. of Tech. (Japan). Dept. of Physics

Description

The radiation hardness of prototype CsI(Tl) crystals has been tested for the barrel electromagnetic calorimeter for the BELLE detector of the KEK B factory. Although samples made by one of the producers were found to be soft under irradiation, the problem was quickly improved when this information was fed back. All the tested crystals were found to meet our requirement. The light output was found to be almost uniform along a crystal, even when the front part was damaged by radiation. The damage causes a degradation of the attenuation length due to the formation of color centers; this conclusion was confirmed by a Monte Carlo ray-tracing study. (orig.)

Additional details

Publishing Information

Journal Title
Nuclear Instruments and Methods in Physics Research. Section A, Accelerators, Spectrometers, Detectors and Associated Equipment
Journal Volume
394
Journal Issue
1-2
Journal Page Range
p. 46-56.
ISSN
0168-9002
CODEN
NIMAER

INIS

Country of Publication
Netherlands
Country of Input or Organization
Netherlands
INIS RN
28063657
Subject category
S36: MATERIALS SCIENCE;
Descriptors DEI
ABSORPTION SPECTRA; CALORIMETERS; CESIUM IODIDES; COLOR CENTERS; DOPED MATERIALS; NEAR ULTRAVIOLET RADIATION; OPACITY; RADIATION HARDENING; SCINTILLATIONS; SOLID SCINTILLATION DETECTORS; THALLIUM ADDITIONS; ULTRAVIOLET SPECTRA; VISIBLE RADIATION; VISIBLE SPECTRA
Descriptors DEC
ALKALI METAL COMPOUNDS; CESIUM COMPOUNDS; CRYSTAL DEFECTS; CRYSTAL STRUCTURE; ELECTROMAGNETIC RADIATION; HALIDES; HALOGEN COMPOUNDS; HARDENING; IODIDES; IODINE COMPOUNDS; MATERIALS; MEASURING INSTRUMENTS; OPTICAL PROPERTIES; PHYSICAL PROPERTIES; PHYSICAL RADIATION EFFECTS; POINT DEFECTS; RADIATION DETECTORS; RADIATION EFFECTS; RADIATIONS; SCINTILLATION COUNTERS; SPECTRA; ULTRAVIOLET RADIATION; VACANCIES