Abstract
The new Japanese X-ray Astronomy satellite, ASTRO-H will carry two identical hard X-ray telescopes (HXTs), which cover 5 to 80 keV. The HXT mirrors employ tightly-nested, conically-approximated thin-foil Wolter-I optics, and the mirror surfaces are coated with Pt/C depth-graded multilayers to enhance hard X-ray effective area by means of Bragg reflection. The HXT comprises foils 450 mm in diamter and 200 mm in length, with a focal length of 12 m. To obtain a large effective area, 213 aluminum foils 0.2 mm in thickness are tightly nested confocally. The effective area is expected to be ∼ 310 cm2 at 30 keV and the image quality to be ∼1.7′ in half-power diameter.
Original language | English |
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Title of host publication | Space Telescopes and Instrumentation 2010 |
Subtitle of host publication | Ultraviolet to Gamma Ray |
DOIs | |
Publication status | Published - 2010 |
Externally published | Yes |
Event | Space Telescopes and Instrumentation 2010: Ultraviolet to Gamma Ray - San Diego, CA, United States Duration: 28-06-2010 → 02-07-2010 |
Publication series
Name | Proceedings of SPIE - The International Society for Optical Engineering |
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Volume | 7732 |
ISSN (Print) | 0277-786X |
Other
Other | Space Telescopes and Instrumentation 2010: Ultraviolet to Gamma Ray |
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Country/Territory | United States |
City | San Diego, CA |
Period | 28-06-10 → 02-07-10 |
All Science Journal Classification (ASJC) codes
- Electronic, Optical and Magnetic Materials
- Condensed Matter Physics
- Computer Science Applications
- Applied Mathematics
- Electrical and Electronic Engineering