Development of a new inorganic crystal GAGG for the calorimeter capable of the separation between neutrons and gammas

A new inorganic crystal Gd3Al2Ga3O12 is being developed. This crystal is suitable for electromagnetic calorimeters used in high energy physics experiments because the time constant of light emission is small (90 ns) and the light yield is as large as that of NaI(TI) crystals. In addition, the respon...

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Bibliographic Details
Published inJournal of instrumentation Vol. 15; no. 7; p. C07011
Main Authors Shiomi, K., Togawa, M., Tajima, Y., Matsumura, T., Kamada, K., Shoji, Y., Yoshikawa, A.
Format Journal Article
LanguageEnglish
Published Bristol IOP Publishing 01.07.2020
Subjects
Crystals
Light emission
Neutrons
Separation
Time constant
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Summary:A new inorganic crystal Gd3Al2Ga3O12 is being developed. This crystal is suitable for electromagnetic calorimeters used in high energy physics experiments because the time constant of light emission is small (90 ns) and the light yield is as large as that of NaI(TI) crystals. In addition, the response of the crystal can be faster by adding doping materials. By using this crystal, we aim at developing an electromagnetic calorimeter that can distinguish neutrons from gammas. In this article, we describe how we distinguish neutrons from gammas and the results of a series of beam tests for a prototype module to evaluate the separation capability.
ISSN:1748-0221
1748-0221
DOI:10.1088/1748-0221/15/07/C07011