Presentation Information
[10a-E219-6]Basic study on a TlBr detector with spiral-shaped coplanar electrodes
〇Yusuke Kawai1, Seishiro Tanaka1, Taisei Teshima1, Kenichi Watanabe1, Mitsuhiro Nogami2, Keitaro Hitomi2 (1.Kyushu Univ., 2.Tohoku Univ.)
Keywords:
semiconductor detectors,thallium bromide
In this study, we investigated a spiral-shaped coplanar electrode structure for TlBr detectors, aiming to achieve both high energy resolution and a large sensitive volume. In conventional comb-shaped coplanar electrodes, spatial nonuniformity in the weighting potential difference may cause the signal amplitude to depend on the interaction position. Therefore, we evaluated two-dimensional distributions of the cathode and differential signal amplitudes through simulation and examined the effect of the spiral-shaped electrode structure on signal formation characteristics.