SIXA: Silicon X-Ray Array

Osmi R. Vilhu; J. Huovelin; Tuomo Tikkanen; Pasi Hakala; Panu Muhli; Veikko J. Kamarainen; Heikki Sipila; Ivor Taylor; Juha Pohjonen; Heikki Paivike; Jukka Toivanen; Rashid Sunyaev; Aleksander E. Kuznetsov; Aleksander Abrosimov

doi:10.1117/12.193163

11 November 1994 SIXA: Silicon X-Ray Array

Osmi R. Vilhu, J. Huovelin, Tuomo Tikkanen, Pasi Hakala, Panu Muhli, Veikko J. Kamarainen, Heikki Sipila, Ivor Taylor, Juha Pohjonen, Heikki Paivike, Jukka Toivanen, Rashid Sunyaev, Aleksander E. Kuznetsov, Aleksander Abrosimov

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Proceedings Volume 2279, Advances in Multilayer and Grazing Incidence X-Ray/EUV/FUV Optics; (1994) https://doi.org/10.1117/12.193163
Event: SPIE's 1994 International Symposium on Optics, Imaging, and Instrumentation, 1994, San Diego, CA, United States

Abstract

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 K_alpha 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.

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Osmi R. Vilhu, J. Huovelin, Tuomo Tikkanen, Pasi Hakala, Panu Muhli, Veikko J. Kamarainen, Heikki Sipila, Ivor Taylor, Juha Pohjonen, Heikki Paivike, Jukka Toivanen, Rashid Sunyaev, Aleksander E. Kuznetsov, and Aleksander Abrosimov "SIXA: Silicon X-Ray Array", Proc. SPIE 2279, Advances in Multilayer and Grazing Incidence X-Ray/EUV/FUV Optics, (11 November 1994); https://doi.org/10.1117/12.193163

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