| アイテムタイプ |
学術雑誌論文 / Journal Article(1) |
| 公開日 |
2026-01-27 |
| タイトル |
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タイトル |
Pile-up simulator for XRISM/Xtend onboard the X-ray Imaging and Spectroscopy Mission |
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言語 |
en |
| 言語 |
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言語 |
eng |
| キーワード |
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言語 |
en |
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キーワード |
astronomy |
| キーワード |
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言語 |
en |
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キーワード |
charge-coupled-devices |
| キーワード |
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言語 |
en |
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キーワード |
simulations |
| キーワード |
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言語 |
en |
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キーワード |
telescopes |
| キーワード |
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言語 |
en |
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キーワード |
X-rays |
| 資源タイプ |
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資源タイプ |
journal article |
| アクセス権 |
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アクセス権 |
open access |
| 著者 |
Yoneyama, Tomokage
| en |
Yoneyama, Tomokage（Personal）
JAXA Institute of Space and Astronautical Science
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Search repository
Tamba, Tsubasa
| en |
Tamba, Tsubasa（Personal）
JAXA Institute of Space and Astronautical Science
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Search repository
Odaka, Hirokazu
Bamba, Aya
Murakami, Hiroshi
森, 浩二
Terada, Yukikatsu
Nobukawa, Masayoshi
Mizuno, Tsunefumi
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| 抄録 |
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内容記述タイプ |
Abstract |
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内容記述 |
In X-ray astronomy, most observatories utilize multi-pixel photon-counting devices. When a photon-counting device observes a bright source, we face an unavoidable problem called pile-up. Pile-up leads to mistakes in the observational properties of the source, mainly an apparent decrease in the X-ray flux. X-Ray Imaging and Spectroscopy Mission (XRISM) has two X-ray telescopes, one of which is Xtend, a CCD camera with a wide field-of-view (FOV) of 38 arcmin square. Xtend has three operating modes: full window mode with a frame exposure of ∼4s, 1/8 window mode with ∼0.5s and reduced FOV, and 1/8 window mode with burst option, whose frame exposure is reduced to ∼0.06s. Observers need to select the operating mode according to their target fluxes. We develop the pile-up simulator for Xtend to provide a quantitative assessment of pile-up according to the fluxes, spectra, and shapes of X-ray sources. We derived the 10% pile-up limits for a point source of 7.8, 66.2, and 447.9countss−1 for full window, 1/8 window, and 1/8 window mode with burst option, respectively, by assuming the Crab spectrum. We present further simulations for a diffuse source and monochromatic spectra. |
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言語 |
en |
| 書誌情報 |
en : Journal of Astronomical Telescopes Instruments and Systems
巻 11,
号 4,
p. 042010,
発行日 2025-11-25
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| 出版者 |
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出版者 |
SPIE-Intl Soc Optical Eng |
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言語 |
en |
| ISSN |
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収録物識別子タイプ |
EISSN |
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収録物識別子 |
23294221 |
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収録物識別子タイプ |
ISSN |
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収録物識別子 |
23294124 |
| DOI |
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関連タイプ |
isVersionOf |
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識別子タイプ |
DOI |
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関連識別子 |
https://doi.org/10.1117/1.JATIS.11.4.042010 |
| 権利 |
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権利情報 |
© The Authors. |
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言語 |
en |
| 著者版フラグ |
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出版タイプ |
VoR |
Fulltext (2 MB)
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