The 82nd JSAP Autumn Meeting 2021

Presentation information

Poster presentation

2 Ionizing Radiation » 2 Ionizing Radiation(Poster)

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

Tue. Sep 21, 2021 1:00 PM - 2:40 PM P01 (Poster)

1:00 PM - 2:40 PM

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

Toshiyuki Takagi1,2, Katsuyuki Takagi1,2, Amane Ono1, Junichi Nishizawa1,2, Kento Tabata1, Hisashi Morii2, Akifumi Koike2, Toru Aoki1,2 (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.