The Hinode X-ray Telescope (XRT):: Camera design, performance and operations
The Hinode X-ray Telescope (XRT):: Camera design, performance and operations
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DOI：
10.1007/s11207-007-9058-7
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发表时间：
2008-06-01
期刊：
影响因子：
2.8
通讯作者：
Weber, M.
中科院分区：
文献类型：
--
作者：
Kano, R.;Sakao, T.;Weber, M.
Hinode 卫星上的 X 射线望远镜 (XRT) 是配备 2048x2048 CCD 的掠入射 X 射线成像仪。 XRT 具有 1 弧秒像素，具有 34x34 弧分的宽视野。它对 < 1 至 30 MK 的宽温度范围的等离子体敏感，使我们能够获得类似 TRACE 的低温图像以及类似 Yohkoh/SXT 的高温图像。航天器任务数据处理器 (MDP) 通过具有多种自主功能的序列表控制 XRT，例如曝光控制、感兴趣区域跟踪、耀斑检测和耀斑位置识别。根据用途，数据可以使用 DPCM 或 JPEG 进行压缩。对于给定的遥测带宽，这会导致更高的节奏和/或更宽的视野。通过焦点调节机制，可以在轴上获得更高分辨率的高斯焦点。本文继第一篇 XRT 仪器论文（Golub 等人，Solar Phys. 243, 63, 2007）之后，讨论了 XRT 的 X 射线 CCD 相机及其 MDP 控制系统的设计和测量性能。
The X-ray Telescope (XRT) aboard the Hinode satellite is a grazing incidence X-ray imager equipped with a 2048x2048 CCD. The XRT has 1 arcsec pixels with a wide field of view of 34x34 arcmin. It is sensitive to plasmas with a wide temperature range from < 1 to 30 MK, allowing us to obtain TRACE-like low-temperature images as well as Yohkoh/SXT-like high-temperature images. The spacecraft Mission Data Processor (MDP) controls the XRT through sequence tables with versatile autonomous functions such as exposure control, region-of-interest tracking, flare detection, and flare location identification. Data are compressed either with DPCM or JPEG, depending on the purpose. This results in higher cadence and/or wider field of view for a given telemetry bandwidth. With a focus adjust mechanism, a higher resolution of Gaussian focus may be available on-axis. This paper follows the first instrument paper for the XRT (Golub et al., Solar Phys. 243, 63, 2007) and discusses the design and measured performance of the X-ray CCD camera for the XRT and its control system with the MDP.