Energy resolution and other properties of CsI(Tl) crystals

Nobuaki Sato; Noboru Fujiwara; Masaki Fukushima; Hisaki Hayashii; Kenji Kaneyuki; Seishi Noguchi; Kazuo Ogawa; Eiko Sakai; Naoki Sugiyama; Megumi Takemoto; Yasuo Takeuchi; K. Tamai; Toru Tanimori; Yasushi Watanabe

doi:10.1117/12.138603

22 December 1992 Energy resolution and other properties of CsI(Tl) crystals

Nobuaki Sato, Noboru Fujiwara, Masaki Fukushima, Hisaki Hayashii, Kenji Kaneyuki, Seishi Noguchi, Kazuo Ogawa, Eiko Sakai, Naoki Sugiyama, Megumi Takemoto, Yasuo Takeuchi, K. Tamai, Toru Tanimori, Yasushi Watanabe

Author Affiliations +

Proceedings Volume 1734, Gamma-Ray Detectors; (1992) https://doi.org/10.1117/12.138603
Event: San Diego '92, 1992, San Diego, CA, United States

Abstract

We plan to use an array of 9600 CsI(Tl) crystals as the electromagnetic (EM) shower detector for the asymmetric B-Factory at KEK. In order to determine the length of a crystal, we studied energy resolution, electron/pion separation, and other properties of 25 cm and 30 cm long CsI(Tl) crystals of a 3 X 3 matrix at GeV energy region. When electrons with energy of 1 GeV (4 GeV) is injected into the crystals, the energy resolution of 25 cm and 30 cm length is 2.7% (3.0%) and 2.4% (1.8%), respectively. The misidentification of a pion as an electron is less than 0.5% for energies above 1 GeV.

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Nobuaki Sato, Noboru Fujiwara, Masaki Fukushima, Hisaki Hayashii, Kenji Kaneyuki, Seishi Noguchi, Kazuo Ogawa, Eiko Sakai, Naoki Sugiyama, Megumi Takemoto, Yasuo Takeuchi, K. Tamai, Toru Tanimori, and Yasushi Watanabe "Energy resolution and other properties of CsI(Tl) crystals", Proc. SPIE 1734, Gamma-Ray Detectors, (22 December 1992); https://doi.org/10.1117/12.138603

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