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Proceedings Paper

Effect of surface of single crystals ZnSe(Te) and Csl(TI) on dynamic characteristics of spectrometric parameters of detection blocks
Author(s): Vladimir D. Ryzhikov; Nikolay G. Starzhinskiy; Sergej O. Kostyukevych; Leonid P. Gal'chinetsky; Evgeniy A. Danshin; Valentina Z. Kvitnitskaya; Vyacheslav V. Chernikov
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Paper Abstract

Evaluation was made of changes in scintillation and dynamic characteristics of detection blocks of 'scintillator- photodiode' type based on crystals ZnSe(Te) and CsI(Tl) after long-term storage of unprotected crystals under normal climatic conditions, as well as after action of water vapor. It is shown that changes of energy resolution of large CsI(Tl) crystal are not significant; only the radiation noise threshold is changed due to the phosphorescence of the disturbed surface layer of the crystal. For single crystals ZnSe(Te), which are used for spectrometry of charged particles and short-range gamma-radiation as thin plates, both dynamic noise threshold and spectrometric characteristics are changed. Possibilities to restore the initial crystal properties are discussed, and ways to protect the crystal surface from environmental effects are considered.

Paper Details

Date Published: 19 October 1999
PDF: 4 pages
Proc. SPIE 3768, Hard X-Ray, Gamma-Ray, and Neutron Detector Physics, (19 October 1999); doi: 10.1117/12.366622
Show Author Affiliations
Vladimir D. Ryzhikov, Institute for Single Crystals (Ukraine)
Nikolay G. Starzhinskiy, Institute for Single Crystals (Ukraine)
Sergej O. Kostyukevych, Institute for Single Crystals (Ukraine)
Leonid P. Gal'chinetsky, Institute for Single Crystals (Ukraine)
Evgeniy A. Danshin, Institute for Single Crystals (Ukraine)
Valentina Z. Kvitnitskaya, Institute for Single Crystals (Ukraine)
Vyacheslav V. Chernikov, Institute for Single Crystals (Ukraine)

Published in SPIE Proceedings Vol. 3768:
Hard X-Ray, Gamma-Ray, and Neutron Detector Physics
Ralph B. James; Richard C. Schirato, Editor(s)

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