Radiation hardness of Ce:(Gd, La).sub.2./sub.Si.sub.2./sub.O.sub.7./sub. scintillator using 80-MeV alpha rays

0470889 - FZÚ 2017 RIV JP eng C - Conference Paper (international conference)
Kurosawa, S. - Murakami, R. - Yamaji, A. - Shoji, Y. - Pejchal, Jan - Ohashi, Y. - Yokota, Y. - Kamada, K. - Yoshikawa, A.
Radiation hardness of Ce:(Gd, La)₂Si₂O₇ scintillator using 80-MeV alpha rays.
Proceedings of International Symposium on Radiation Detectors and Their Uses (ISRD2016). Tokyo: Physical Society of Japan, 2016 - (Kanno, I.), s. 1-6, č. článku 020002. Journal of the Physical Society of Japan Conference Proceedings, 11. ISBN 978-4-89027-115-3.
[International Symposium on Radiation Detectors and Their Uses (ISRD2016). Tsukuba (JP), 18.01.2016-21.01.2016]
R&D Projects: GA MŠMT(CZ) LH14266
Institutional support: RVO:68378271
Keywords : scintillator * pyrosilicate * radiation hardness
Subject RIV: BM - Solid Matter Physics ; Magnetism

Ce-doped (Gd,La)2Si2O7 scintillator has a high light output, fast decay time, and it has been expected to be applied in various fields. One of the applications is to use in the space for astronomy, and therefore, the evaluation of the radiation hardness is required. We grew a Ce-doped (Gd,La)2Si2O7 single crystal by the Czochralski technique, and evaluated its radiation hardness using 80-MeV alpha rays in Tohoku University with a total dose of approximately 20,000 Gy. The light outputs and decay times were slightly degraded after the irradiation by few %. Only the energy resolution was degraded dramatically in the 80-MeV alpha-ray range, and Ce-doped (Gd,La)2Si2O7 scintillator was found to have good radiation hardness for alpha rays.

Permanent Link: http://hdl.handle.net/11104/0268402