An angular-resolution booster on the broadband X-ray telescope system
An angular-resolution booster on the broadband X-ray telescope system
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宽带 X 射线望远镜系统的角分辨率增强器
DOI：
10.1117/12.2273466
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发表时间：
2017
期刊：
影响因子：
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通讯作者：
Ryoko
中科院分区：
文献类型：
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作者：
Maeda;Yoshitomo; Iizuka;Ryo; Sato;Toshiki; Ishida;Manabu; Hayashi;Takayuki; Nakamura;Ryoko
提出了一种带角分辨率增强器的宽带望远镜的设计方案。Maeda等人提出了具有高角分辨率和中等灵敏度的X射线成像系统的概念。在该概念中，二维检测器，即，成像器被放置在聚焦镜的稍微散焦的位置，而不是像标准光学器件那样正好在镜焦点处。离焦处的探测器捕捉到了放置在镜子前面的前掩模狭缝的微观世界。该掩模作为调制准直器工作，并提高聚焦望远镜的角分辨率。该概念的主要优点是，可实现比传统光学器件好得多的2-3个数量级或更多的角分辨率，同时保持高吞吐量（大有效面积）。因此，我们提出了一个例子，一个助推器的宽带望远镜。利用Pt/C深度梯度超镜技术，讨论了高达80 keV的宽带覆盖。
We present a design of the broad band telescope with the angular resolution booster. A concept of the Xray imaging system with high angular-resolution and moderate sensitivity was presented by Maeda et al. (submitted). In the concept, a two-dimensional detector, i.e., imager, is put at a slightly defocused position of the focusing mirror, rather than right at the mirror focus as in the standard optics. The detector at the off-focus captures the microcosm of front mask-slits that are placed on the front of the mirror. The masks work as a modulation collimator and boost the angular resolution of the focusing telescope. The major advantage of this concept is that a much better angular resolution by an order of 2–3 or more than in the conventional optics is achievable, while a high throughput (large effective area) is maintained. We therefore present an example of a booster for a broad-band telescope. Using the technique of the Pt/C depth-graded supermirror, the broadband coverage up to 80 keV is discussed.