X-ray Imaging and Spectroscopy Mission (XRISM) will be launched in early 2022. XRISM has a soft X-ray imaging telescope using X-ray mirror and CCD cameras, named "Xtend". In 2019, we have performed screenings to choose four flight-model (FM) CCD chips from twelve FM candidates provided by Hamamatsu Photonics company. After that, we performed on-ground calibration for the selected FM CCD chips. In this presentation, we report results of the screenings and calibrations.
|Submission declaration||Original and unpublished|