Scintillation losses due to radiation damage in long-size CsI(Tl) crystals

Author

Gektin, A.V. ; Globus, M.E. ; Shepelev, O.A. ; Shiran, N.V. ; Shpilinskaya, L.N.

Author_Institution

Inst. for Single Crystals, Kharkov, Ukraine

Volume

2

fYear

1996

Firstpage

887

Abstract

Basing on both experimental and calculated data, the radiation-stimulated losses of scintillation efficiency in long-size CsI(Tl) crystals are shown to be caused by at least two physical mechanisms. There are the transparency decrease in irradiated crystals on the emission wavelength and a decrease of the luminescence efficiency due to coincidence of hole color centers absorption bands with the luminescence excitation spectrum of CsI(Tl). Therewith, the latter mechanism is turned out to be prevailing one

Keywords

caesium compounds; colour centres; radiation effects; solid scintillation detectors; thallium; CsI:Tl; emission wavelength; hole color centers absorption bands; long-size CsI(Tl) crystals; luminescence efficiency; luminescence excitation spectrum; radiation damage; radiation-stimulated losses; scintillation efficiency; scintillation losses; transparency decrease; Charge carrier processes; Crystalline materials; Crystals; Electromagnetic radiation; Electromagnetic wave absorption; Luminescence; Radiation detectors; Solid scintillation detectors; Stability; Testing;

fLanguage

English

Publisher

ieee

Conference_Titel

Nuclear Science Symposium, 1996. Conference Record., 1996 IEEE

ISSN

1082-3654

Print_ISBN

0-7803-3534-1

Type

conf

DOI

10.1109/NSSMIC.1996.591482

Filename

591482