Hard X-ray imaging with microchannel plate optics

被引：32
|
作者：
Willingale, R [1 ]
Fraser, GW [1 ]
Brunton, AN [1 ]
Martin, AP [1 ]
机构：
[1] Univ Leicester, Dept Phys & Astron, Leicester LE1 7RH, Leics, England
来源：
EXPERIMENTAL ASTRONOMY | 1998年 / 8卷 / 04期
关键词：
instrumentation : miscellaneous; MCP optics; telescopes; X-rays : general;
D O I：
10.1023/A:1008099315152
中图分类号：
P1 [天文学];
学科分类号：
0704 ;
摘要：
We investigate, by ray-trace simulation, two hard X-ray telescopes based on microchannel plate (MCP) optics. The first is the, by now well known, lobster-eye geometry, while the second is a novel design. The second design uses a pair of MCPs with square channels packed in a radial fashion and represents a conical approximation to the Welter type I configuration. We show that such telescopes can provide X-ray imaging at energies up to 100 keV. Effective area may be scaled arbitrarily by co-aligning many MCP optics. As an example, we calculate that 50 parallel Welter I units each of 60 mm diameter and 5 m focal length yield a sensitivity of 1 milli Crab at 45 keV in a 10(5) second integration.
引用
收藏
页码：281 / 296
页数：16
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