[14a-B508-1~11] 7.1 X-ray technologies

[14a-B508-3] Development of wide-band X-ray imasing spectrometor using the CMOS image sonsor for optical use

〇Junko Hiraga¹, Yasuaki Kamata¹, Daito Yuhi¹, Yoshida Masayuki¹, Urabe Yukino¹, Hiroshi Nakajima² (1.Kwansei gakuin Univ., 2.Kanto gakuin Univ.)

Keywords:CMOS image sensor, X-ray photon counting

In recent years, low noise CMOS image sensors have been realized, especially for optical use and several scientific space missions have plans to employ CMOS image sensors instead of conventional X-ray CCDs. In this study, X-ray spectral performance was evaluated using a front-illuminated CMOS image sensor with a pixel size of 6.5 μm × 6.5 μm. As a result, we obtained wide band spectrum 1.5keV to 25keV with good energy resolution of ΔE / E ~ 3% @ 22keV.