The current status of ASTRO-H/HXT development facility

Details The current status of ASTRO-H/HXT development facility The current status of ASTRO-H/HXT development facility

Aug 2009

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2009spie.7437e...7f&link_type=abstract

Optics for EUV, X-Ray, and Gamma-Ray Astronomy IV. Edited by Furuzawa, Akihiro; Ogasaka, Yasushi; Kunieda, Hideyo; Miyazawa, Tak

Physics

Optics

Scientific paper

We present the current state of the development system of the hard ray telescope onboard ASTRO-H satellite. Japan's 6th X-ray satellite mission ASTRO-H, which is planed to be launched in fiscal year 2013, will carry four X-ray telescopes (XRT). Two of four XRTs are hard X-ray telescopes (HXT) using depth-graded multilayer reflector which provide us the capability of hard X-ray imaging observation up to 80 keV. ASTRO-H/HXT is the light-weight hard X-ray telescope using Pt/C depth-graded multilayer and high-throughput thin-foil optics. The basic technology for fabricating the ASTRO-H/HXT has been established through the balloon borne experiments, "InFOCμS" (US-Japan international joint experiment) and "SUMIT" missions. (Nagoya University, Osaka University and JAXA). Major changes from XRTs onboard InFOCμS and SUMIT missions are large aperture size of 45 cm in diameter, the length of reflectors of 20 cm and the focal length of 12 m (XRTs onboard the balloon missions above have the aperture size of 40 cm in diameter, 13 cm long reflectors and 8 m focal length). Now we have almost finished to establish the mirror production facility dedicated to the ASTRO-H/HXT and are starting to produce foil reflectors for performance verification of 200 mm long reflector. We report the current status of the development facilities and test foil production.

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