Response of LYSO:Ce scintillation crystals to low energy gamma-rays

K. G. Afanaciev, A. M. Artikov,V. Yu. Baranov, M. A. Batouritski,J. A. Budagov,Yu. I. Davydov, R. M. Djilkibaev, I. F. Emeliantchik,A. A. Fedorov, V. V. Glagolev,M. V. Korzhik,D. Yu. Kozlov,V. A. Mechinsky,A. V. Simonenko, A. N. Shalyugin, V. V. Shevtsov, V. V. Tereschenko, Z. U. Usubov

Physics of Particles and Nuclei Letters（2015）

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摘要

The LYSO crystals of dimensions 30 × 30 × 130 mm and 10 × 10 × 10 mm are tested with different gamma sources. Energy resolutions and linearity of the energy responses in the energy range 511–1333 keV are measured. It is found that crystals have good linearity of the energy response in the entire tested energy range. Longitudinal light response non-uniformity of the long crystal is found to be less than 3.2% within the 30–120 mm range along the crystal axis.

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关键词

Nucleus Letter, Crystal Axis, Energy Response, Gamma Source, Pulse Height Spectrum

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