Irradiation Effect of New Scintillators

Abstract

Abstract: The scintillators used for high-energy physics experiments will encounter a severe irradiation environment. So the irradiation hardness of scintillators must meet
certain requirements. After irradiation, the scintillators will have some changes including the change of scintillation mechanism, the
formation of color centers, the change of light output, the damage of light response uniformity, the increase of noise. The irradiation
effect of scintillators is caused by the structure defects, such as oxygen vacancies. Doping, optimization of crystal growth parameters
and post thermal treatment have been proved to be effective for enhancing the radiation hardness of scintillation crystals. This
article introduces the irradiation effects of new scintillators and several usual methods of studying irradiation effects, including
optical spectroscopy analysis, thermoluminescence, electron paramagnetic resonance and the technique of positron annihilation.

Key words: new type scintillators, irradiation effect, structure defects, color centers

CLC Number:

O734

LIU Bo,SHI Chao-Shu,ZHOU Dong-Fang. Irradiation Effect of New Scintillators[J]. Journal of Inorganic Materials.

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