GLAST量热计中CsI(Tl)晶体的质子辐照响应

2003 IEEE Nuclear Science Symposium. Conference Record (IEEE Cat. No.03CH37515) Pub Date : 2012-04-10 DOI:10.1109/NSSMIC.2003.1351883

S. Bergenius, S. Carius, P. Carlson, J. Grove, G. Johansson, W. Klamra, L. Nilsson, M. Pearce

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引用次数: 0

摘要

伽玛射线大面积空间望远镜(GLAST)的电磁量热计由16个CsI(Tl)晶体塔组成。每个塔包含8层晶体(每层326.0/spl倍/26.7/spl倍/19.9毫米/sup 3/)，以星形的方式排列。晶体在两端用光电二极管读出。水晶由Amcrys-H(乌克兰)生产。用180mev质子束辐照全尺寸晶体，并测量了辐射诱导衰减。并对晶体的诱导放射性进行了研究。本文将讨论质子辐照引起的损伤，并将其与预期在轨本底通量进行比较。

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Proton irradiation response of CsI(Tl) crystals for the GLAST calorimeter

The electromagnetic calorimeter of the Gamma-Ray Large Area Space Telescope (GLAST) consists of 16 towers of CsI(Tl) crystals. Each tower contains 8 layers of crystals (each 326.0/spl times/26.7/spl times/19.9 mm/sup 3/) arranged in a hodoscopic fashion. The crystals are read out at both ends with photodiodes. Crystals produced by Amcrys-H (Ukraine) are used. A full size crystal was irradiated with a 180 MeV proton beam and the radiation induced attenuation was measured. The induced radioactivity of the crystal was also studied. In this paper we will discuss the damage due to proton irradiation and compare this with the expected in-orbit background flux.

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2003 IEEE Nuclear Science Symposium. Conference Record (IEEE Cat. No.03CH37515)

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