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

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

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...

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Bibliographische Detailangaben
Hauptverfasser: Gektin, A.V., Globus, M.E., Shepelev, O.A., Shiran, N.V., Shpilinskaya, L.N.
Format: Tagungsbericht
Sprache:eng
Schlagworte:
Charge carrier processes
Crystalline materials
Crystals
Electromagnetic radiation
Electromagnetic wave absorption
Luminescence
Radiation detectors
Solid scintillation detectors
Stability
Testing
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Beschreibung
Zusammenfassung: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.
ISSN:1082-3654
2577-0829
DOI:10.1109/NSSMIC.1996.591482