Comparison of functional parameters of CsI:Tl crystals and thick films |
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| Institution: | 1. College of Applied Sciences, Beijing University of Technology, Beijing 100124, PR China;2. Fundament Department, The Chinese People''s Armed Police Forces Academy, Langfang 065000, PR China |
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| Abstract: | 500 mkm thick CsI:Tl columnar films can be produced using thermal evaporation in vacuum by sublimation of the same bulk crystal. Comparison of afterglow and radiation stability of deposited CsI:Tl films with source crystal was the aim of current work. It is shown that the afterglow in the films is always below its level in initial single crystal. It was ascertained that the annealing atmospheres influence the processes leading to the activator depletion of the films during the thermal processing. |
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