[1A01-05] Radiation Detector, Laser Spectroscopy

10:45 AM - 11:00 AM JST(1:45 AM - 2:00 AM UTC)

[1A02] Characterization of TlBr Gamma Detector Based on Electrical Charge and Cherenkov Light Analysis

*Boyu Feng¹, Moh HAMDAN¹, Keitaro Hitomi², Mizuki Uenomachi³, Mitsuhiro Nogami², Hidenori Toyokawa⁴, Kenji Shimazoe¹ (1. UTokyo, 2. Tohoku Univ., 3. Tokyo Tech, 4. JASRI)

Keywords:

TlBr detector,Cherenkov Light,Gamma-ray detector

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.