The thermal analysis of the Hard X-ray Telescope (HXT) and the investigation of the deformation of the mirror foil due to temperature change

Ito, Koichiro; Ogi, Keiji; Awaki, Hisamitsu; Kosaka, Tatsuro; Yamamoto, Yasufumi

doi:10.1117/12.856581

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“…The feasibility of the hardware design was confirmed by analysis and test with engineering model. 14,15 To specify the allowable storage temperature and operating temperature of HXT, we performed additional thermal tests. In the thermal stress test, we found that foil reflectors for HXT survived in the temperature range between -5 °C to 50 °C.…”

Section: Discussionmentioning

confidence: 99%

Current status of ASTRO-H Hard X-ray Telescopes (HXTs)

et al. 2012

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ASTRO-H is an international X-ray mission of ISAS/JAXA, which will be launched in 2014. One of the main characteristics of ASTRO-H is imaging spectroscopy in the hard X-ray band above 10 keV. ASTRO-H will carry two identical Hard X-ray telescopes (HXTs), whose mirror surfaces are coated with Pt/C depth-graded multilayers to enhance hard X-ray effective area up to 80 keV.HXT was designed based on the telescope on board the SUMIT balloon borne experiment. After feasibility study of the HXT design, the FM design has been deteremined. Mass production of the mirror shells at Nagoya University has been going on since August 2010, and production of mirror shells for HXT-1 was completed in March 2012. After the integation of X-ray mirrors for HXT-1, we measured hard X-ray performance of selected mirror shells for HXT-1 at a synchrotron radiation facility, SPring-8 beamline BL20B2. We will perform environment tests and ground calibarations at SPring-8 for HXT-1. In HXT-2, foil production is going on.

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Section: Discussionmentioning

confidence: 99%