Radiation hardness of undoped CsI crystals against high energy protons
1993; Elsevier BV; Volume: 328; Issue: 3 Linguagem: Inglês
10.1016/0168-9002(93)90666-6
ISSN1872-9576
AutoresM. Kobayashi, M. Ieiri, Kenjiro Kondo, Taichi Miura, H. Noumi, M. Numajiri, Yuichi Oki, T. Suzuki, Minoru Takasaki, К. Таnака, Y. Yamanoi, Shojiro Sugimoto, Mitsuru Ishii,
Tópico(s)Nuclear Physics and Applications
ResumoWe compared radiation damages of undoped CsI for 12 GeV protons and for 60Co γ-rays between 104 and 108 rad. Degradation in optical transmission was similar in magnitude both for protons and γ-rays; it is as small as 1–3% per 1 cm thickness at 104 rad, while it is as large as or larger than 5% above 105 rad. The above feature is different for BGO or GSO:Ce, whose radiation hardness is roughly two orders of magnitude smaller regarding protons than regarding γ-rays. Recovery of damage is qualitatively similar both for proton and γ-ray irradiations; spontaneous recovery is only partial and the annealing effect of UV exposure is negligibly small.
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