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タイトルThe X-ray telescope on board ASCA
著者(英)Yamazaki, Takashi; Jalota, Lalit; Yoshioka, Hidenori; Tsusaka, Yoshiyuki; Tawara, Yuzuru; Kunieda, Hideyo; Suzuki, Hisanori; Serlemitsos, Peter J.; Sakima, Yasuhiro; Soong, Yang
著者所属(英)NASA Goddard Space Flight Center
発行日1995-01-01
1995
言語eng
内容記述The Advanced Satellite for Cosmology and Astrophysics (ASCA) instrument uses identical conical foil X-ray mirrors for its four telescopes. One of the major advantages of ASCA's telescopes is the first time ever use of X-ray imaging over a broad energy band and high throughput for conducting astronomical spectroscopy. Nested thin foil reflectors make possible a large effective area up to 10 keV, even under the tight weight restriction of the ASCA spacecraft. The expected characteristics of the ASCA mirrors are summarized based on ray tracings and pre-flight calibrations. The total effective area of four telescopes at 1 and 7 keV are approximately 1200 and 600 sq cm, respectively. The image size (half power diameter: HPD) is about 3 min. The field of view is 24 min and 16 min full width at half maximum for 1 and 7 keV, respectively. Observations of several X-ray sources from space during the performance verification phase have confirmed those performances as well as the alignment of the optical systems.
NASA分類ASTRONOMY
レポートNO95A81704
権利Copyright
URIhttps://repository.exst.jaxa.jp/dspace/handle/a-is/307612


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