Development of radiation-hardened multi pixel photon counters

T. Nakamori*, Y. Kurei, K. Takeuchi, T. Saito, J. Kataoka, T. Fujita, T. Kato, K. Sato, R. Yamada, N. Kawabata, M. Kokubun

*この研究の対応する著者

研究成果: Conference contribution

抄録

We developed several kinds of trial radiation-hardened MPPC models by changing structures; targeting future space applications for gamma-ray detectors. We produced two sample packages with 15 µ-type 1×1 mm2 MPPC elements for every 9 prototypes and then irradiated 150 MeV protons up to 10- and 100 krad for respective samples. We also used 15-, 25-, 50- and 100-µm-type MPPCs with the current design as controls. We evaluated the radiation tolerance mainly by increasing ratio of post-irradiation dark currents. Consequently we found that all trial models achieved significantly improved radiation tolerance peaking at a factor of 7−8 in the best case. We also present differences among control samples due to the various pixel sizes.

本文言語English
ホスト出版物のタイトルProceedings of the 33rd International Cosmic Rays Conference, ICRC 2013
出版社Sociedade Brasileira de Fisica
ISBN(電子版)9788589064293
出版ステータスPublished - 2013
イベント33rd International Cosmic Rays Conference, ICRC 2013 - Rio de Janeiro, Brazil
継続期間: 2013 7 22013 7 9

出版物シリーズ

名前Proceedings of the 33rd International Cosmic Rays Conference, ICRC 2013
2013-October

Other

Other33rd International Cosmic Rays Conference, ICRC 2013
国/地域Brazil
CityRio de Janeiro
Period13/7/213/7/9

ASJC Scopus subject areas

  • 核物理学および高エネルギー物理学

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