ISS上的MAXI/SSC在轨性能
In Orbit Performance of the MAXI/SSC onboard the ISS
摘要：
本文介绍了国际空间站（ISS）上搭载的CCD相机（MAXI/SSC）的在轨性能。它于2009年8月投入使用。这是第一个使用X射线CCD的全天观测任务。它由32个CCD组成，每个CCD为1平方英寸。它是一个狭缝相机，视场为1deg.5x90度，随着国际空间站的旋转扫描天空。采用珀耳帖制冷器、环路热管和散热器相结合的方式将SSC上的CCD冷却到-60 ℃左右的工作温度。CCD的标准观测模式是并行求和模式（64-binning）。CCD的功能正常，但它遭受边缘辉光时，太阳是近视场（FOV），降低了SSC的观测效率下降到约30%。通过Mn-K X射线和Cu-K X射线连续监测CCD的性能。检测到的污染源很多，不仅有点污染源，还有扩展污染源。由于缺乏有效的观测时间，我们需要更多的观测时间，以获得一个扩展的排放分析提取过程。
英文摘要：
We report here the in orbit performance of the CCD camera (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 consists of 32 CCDs each of which is 1 inch square. It is a slit camera with a field of view of 1deg.5x 90deg and scans the sky as the rotation of the ISS. The CCD on the SSC is cooled down to the working temperature around -60degC by the combination of the 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 the effective observation time, we need more observation time to obtain an extended emission analysis extraction process.
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