[10p-Z14-1~21] 2.2 Detection systems

[10p-Z14-7] Improvement of Energy Resolution in Thallium Bromo-Chloride Detectors

〇Keitaro Hitomi¹, Mitsuhiro Nogami¹, Toshiyuki Onodera², Fumihiko Nishikido³, Taiga Yamaya³, Junichi Kaneko⁴ (1.Tohoku Univ., 2.Tohoku Inst. Tech., 3.NIRS, 4.Hokkaido Univ.)

Keywords:semiconductor detector, Cerenkov PET

Thallium bromo-chloride (TlBrCl) is a promising material for Cherenkov PET detectors. A TlBrCl crystal was grown by the traveling molten zone method using a zone-purified material in this study. A semiconductor detector was fabricated from the crystal. The TlBrCl detector was tested with a ²²Na gamma-ray source. Clear full-energy peaks for 511 keV and 1275 keV gamma-rays from the source were obtained from the detector.