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29 July 2010 Solid state slit camera (SSC) onboard MAXI
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We report the in orbit status of the MAXI/SSC onboard the international space station (ISS). It was commissioned in August 2009. This is the first all sky survey mission employing X-ray CCDs. It is a slit camera with a field of view of 1.5° × 90° and it scans the sky as the ISS rotates around the earth. The CCD's are cooled down to about -60°C by peltier device and a loop heat pipe. The observation efficiency of the SSC is about 30% due to edge glow, but all of the 32 CCDs in the SSC are cooled down as we expected and functioning property. The performance of the CCD is continuously monitored both by the Mn-K X-rays and by the Cu-K X-rays. There are many sources detected not only point sources but extended sources. But further work in data screening and more observation time is needed to obtain the clear structure of the extended emission.
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Masashi Kimura, Hiroshi Tsunemi, Hiroshi Tomida, and Haruyoshi Katayama "Solid state slit camera (SSC) onboard MAXI", Proc. SPIE 7732, Space Telescopes and Instrumentation 2010: Ultraviolet to Gamma Ray, 77323M (29 July 2010);


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