Astronomy and Astrophysics – Astronomy
Scientific paper
Dec 2010
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2010pasj...62.1371t&link_type=abstract
Publications of the Astronomical Society of Japan, Vol.62, No.6, pp.1371--1379
Astronomy and Astrophysics
Astronomy
10
Instrumentation: Detectors, Space Vehicles: Instruments, X-Ray Ccds
Scientific paper
We report here the in-orbit performance of the CCD camera (MAXI/SSC) onboard the International Space Station (ISS). It was commissioned in 2009 August. This is the first all-sky survey mission employing X-ray CCDs. It consists of 32 CCDs, each of which is 1 inch square. It is a slit camera with a field of view of 1.°5 × 90°, and scans the sky as the rotation of the ISS. The CCD on the SSC is cooled down to the working temperature around -60°C by the combination of a peltier cooler, a loop heat pipe and a radiator. The standard observation mode of the CCD is in a parallel sum mode (64-binning). The CCD functions properly, although it suffers an edge glow when the Sun is near the field of view (FOV), which reduces the observation efficiency of the SSC down to about 30%. 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. Due to the lack of an effective observation time, we need more observation time to obtain an extended emission analysis extraction process.
Daikyuji Arata
Katayama Haruyoshi
Kimura Masashi
Maeda Kentaro
MAXI Team
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