11 November 1994 SIXA: Silicon X-Ray Array
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The Spectrum-X-Gamma satellite is scheduled for launch in 1995-96. Mission objectives include broad and narrow band imaging spectroscopy over a wide range of energies from the EUV through hard X-rays with an emphasis on studying galactic and extragalactic X-ray sources. Timing and moderate resolution spectroscopy can be performed with the solid state spectrometer SIXA (Silicon X-Ray Array), placed on the focal plane of the SODART telescope with total effective area of 1150 cm2 at 6 keV (for f equals 8 m telescope). The detector consists of 19 circular Si(Li) pixels, each with an active diameter of 9.2 mm and thickness of 3 mm. A radiative cooler will be used to bring the detector to the proper operating temperature (110 - 120 K). The energy range 0.5 - 20 keV is divided into 1024 channels of 20 eV size. Photon can be recorded with 30 microsecond(s) time resolution and 160 - 200 eV (1 - 7 keV) energy resolution. Potential observing programs (for e.g. time-resolved Iron Kalpha line spectroscopy) include stellar coronae, cataclysmic variables and X-ray binaries; accretion discs and coronae of neutron stars and black hole candidates; supernova remnants, active galactic nuclei and clusters of galaxies.
© (1994) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Osmi R. Vilhu, Osmi R. Vilhu, J. Huovelin, J. Huovelin, Tuomo Tikkanen, Tuomo Tikkanen, Pasi Hakala, Pasi Hakala, Panu Muhli, Panu Muhli, Veikko J. Kamarainen, Veikko J. Kamarainen, Heikki Sipila, Heikki Sipila, Ivor Taylor, Ivor Taylor, Juha Pohjonen, Juha Pohjonen, Heikki Paivike, Heikki Paivike, Jukka Toivanen, Jukka Toivanen, Rashid Sunyaev, Rashid Sunyaev, Aleksander E. Kuznetsov, Aleksander E. Kuznetsov, Aleksander Abrosimov, Aleksander Abrosimov, } "SIXA: Silicon X-Ray Array", Proc. SPIE 2279, Advances in Multilayer and Grazing Incidence X-Ray/EUV/FUV Optics, (11 November 1994); doi: 10.1117/12.193163; https://doi.org/10.1117/12.193163

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