[1A01-05] 検出器一般・レーザー分光

10:45 〜 11:00

[1A02] 電荷およびチェレンコフ光の解析に基づくTlBrガンマ線検出器の特性評価

*封 博宇¹、HAMDAN Moh¹、人見 啓太朗²、上ノ町 水紀³、野上 光博²、豊川 秀訓⁴、島添 健次¹ (1. 東大、2. 東北大、3. 東工大、4. JASRI)

キーワード：

臭化タリウム検出器、チェレンコフ光、ガンマ線検出器

In this study, we developed a Thallium Bromide (TlBr) semiconductor detector, featuring a pixelated anode and a planar cathode, for room-temperature gamma-ray detection. The detector used Tl electrodes and was connected to a charge-sensitive preamplifier via Au wire for the electrical readout system. A silicon photomultiplier is used for an optical readout system to detect Cherenkov light. We achieved an enhanced energy resolution from 4.5% to 1.96% FWHM at 662 keV using depth of interaction correction. Time resolution assessments indicated potential performance in the picosecond range, showcasing TlBr's capability for precise energy resolution and timing.