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Influence of shallow traps on lead tungstate low dose rate radiation damage behaviour

Abstract : Shallow traps influence the radiation damage behaviour of lead tungstate scintillation crystals when exposed to continuous low dose rate radiation. Radiation initiates diffusion of Oxygen vacancies in the crystal giving rise to their aggregation if their density is high enough, which creates deeper traps than single vacancies. The situation may occur in high luminosity experiments where scintillation crystals are exposed for long periods of time to irradiation. The experimental results presented in this paper illustrate the importance of optimizing the crystals by reducing the concentration of the shallow traps and not only of the deep traps.
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http://hal.in2p3.fr/in2p3-00089423
Contributor : Claudine Bombar <>
Submitted on : Friday, August 18, 2006 - 2:40:19 PM
Last modification on : Wednesday, July 22, 2020 - 9:54:20 AM
Long-term archiving on: : Tuesday, April 6, 2010 - 12:37:26 AM

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  • HAL Id : in2p3-00089423, version 1

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E. Auffray, A. Borisevich, G. Drobychev, V. Dormenev, J. Galan-Chiner, et al.. Influence of shallow traps on lead tungstate low dose rate radiation damage behaviour. Journées CMS France, Mar 2006, Strasbourg, France. pp.1-9. ⟨in2p3-00089423⟩

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