[21p-P01-1~31] 2 Ionizing Radiation(Poster)

[21p-P01-26] Evaluation of Charge-Shedding Effect between Pixels in X-ray Measurement Using Photon Counting Method

〇Toshiyuki Takagi^1,2, Katsuyuki Takagi^1,2, Amane Ono¹, Junichi Nishizawa^1,2, Kento Tabata¹, Hisashi Morii², Akifumi Koike², Toru Aoki^1,2 (1.Shizuoka Univ., 2.ANSeeN)

Keywords:X-ray imaging, semiconductor ditector, charge sharing

Photon counting detectors have some advantages compared to the conventional energy integrating detectors. However, under high radiation such as in medical CT, it is difficult to measuring radiation due to pile-up. It is possible to reduce the pixel area as a measure against pile-up, but one of problems is charge sharing. Charge sharing was rarely evaluated qualitative. Therefore, in order to qualitative evaluate charge sharing, we have developed detectors for evaluating pulse signals of multiple pixels in parallel using spectrometers or oscilloscopes.