ミズモト　ミサキ   水本　岬希    所属   福岡教育大学  教育学部 理科教育研究ユニット    職種   講師
言語種別	英語
発行・発表の年月	2022/08
形態種別	学術論文（学術雑誌）
査読	査読あり
標題	High count rate effects in event processing for XRISM/Resolve x-ray microcalorimeter
執筆形態	共著
掲載誌名	Proceedings of the SPIE
掲載区分	国外
巻・号・頁	12181,pp.121815Z-1-121815Z-16
担当区分	筆頭著者,責任著者
国際共著	国際共著
著者・共著者	Mizumoto, Misaki; Tsujimoto, Masahiro; Cumbee, Renata S.; Eckart, Megan E.; Ishisaki, Yoshitaka; Kilbourne, Caroline A.; Hodges-Kluck, Edmund; Leutenegger, Maurice A.; Porter, Frederick S.; Sawada, Makoto; Takei, Yoh; Uchida, Yuusuke; Yamada, Shin'ya
概要	The spectroscopic performance of x-ray instruments can be affected at high count rates. The effects and mitigation in the optical chain, such as x-ray attenuation filters or de-focusing mirrors, are widely discussed, but those in the signal chain are not. Using the Resolve x-ray microcalorimeter onboard the XRISM satellite, we discuss the effects observed during high count rate measurements and how these can be modeled. We focus on three instrumental effects that impact performance at high count rate: CPU limit, pile up, and electrical cross talk. High count rate data were obtained during ground testing using the flight model instrument and a calibration xray source. A simulated observation of GX 13+1 is presented to illustrate how to estimate these effects based on these models for observation planning. The impact of these effects on high count rate observations is discussed.