[10p-N307-1~14] 7.1 X-ray technologies

[10p-N307-14] Evaluation of X-ray spectroscopic performance in large-area CMOS image sensors

〇Junko Hiraga¹, Daito Yuhi¹, Takeru Fujii¹, Akihiro Yoshida¹, Hiroshi Nakajima², Daisuke Yonetoku³, Makoto Arimoto³, Naoki Ogino³, Tatsuya Sawano³ (1.Kwansei Gakuin Univ., 2.Kanto Gakuin Univ., 3.Kanazawa Univ.)

Keywords:X-ray imaging spectroscopy, photon counting, CMOS image sensor

We are developing X-ray imaging spectrometer, aiming to be an instrument onboard a space mission, using CMOS image sensor for optical use. In this study, we evaluated the room temperature spectroscopic performance using a large-area CMOS image sensor, GSENSE6060BSI. As a results, we obtained the energy resolution of 157±3eV at 5.9keV, which is as good as that of cooled X-ray CCDs used in X-ray Astronomical space mission.