[8a-N107-1~7] 2.1 Radiation physics, Material development and characteristic evaluation

10:30 AM - 10:45 AM JST(1:30 AM - 1:45 AM UTC)

[8a-N107-3] Study on signal processing of non-biased coplanar-grid TlBr detectors

〇Seishiro Tanaka¹, Watanabe Kenichi¹, Sugai Yusuke¹, Kawai Yusuke¹, Hitomi Keitaro², Nogami Mitsuhiro² (1.Kyushu Univ., 2.Tohoku Univ.)

Keywords:

semiconductor detector,thallium bromide

Thallium bromide (TlBr) is a gamma-ray detector material that can be operated at room temperature and is expected to have high detection efficiency. However, due to low hole mobility, a coplanar grid-type electrode with a unipolar charge sensitization method and a weighted potential gradient has been devised. In this study, unbiased operation was examined, and the signal waveform was processed using a multivariate analysis with a wave height correction method to demonstrate its effectiveness in achieving uniform charge collection efficiency.