Medium-sized grazing incidence high-energy X-ray telescopes employing continuously graded multilayers
- Authors:
- DOI:
- 10.1117/12.140479
- Abstract:
- The authors present a concept of continuously graded multilayer structures for medium-sized X-ray telescopes which is based on several material combinations. They show that the theoretical reflectivity characteristics of these structures make them very advantageous when applied to high energy X-ray grazing incidence telescopes. They consider the performance of continuously graded Ni/C multilayers in a multi-focus, Kirkpatrick-Baez, geometry and show a significant improvement when compared to standard coatings of gold. For a total length of 3.3 m, a total aperture of 48 cm by 48 cm and 64 foci, an effective area of 250 cm2 at 60 keV and a FWHM field of view of 6' is obtained. It is shown that a modular array of conical telescopes (conical approximation to a Wolter-I geometry), with the same length and aperture provides similar effective areas. Energy-dispersive X-ray reflectivity data (15-70 keV) is presented for the first continuously graded multilayer of this kind
- Type:
- Journal article
- Language:
- English
- Published in:
- Proceedings of Spie, the International Society for Optical Engineering, 1993, Vol 1736, p. 239-248
- Main Research Area:
- Science/technology
- Publication Status:
- Published
- Review type:
- Peer Review
- Conference:
- X-Ray Detector Physics and Applications, 1993
- Submission year:
- 1993
- Scientific Level:
- Scientific
- ID:
- 250070645
0000-0001-5679-1946
