Hailey, Charles J. and Abdali, Salim and Christensen, Finn E. and Craig, William W. and Decker, Todd R. and Harrison, Fiona A. and Jimenez-Garate, Mario A. (1997) Investigation of substrates and mounting techniques for the High Energy Focusing Telescope (HEFT). In: EUV, X-Ray, and Gamma-Ray Instrumentation for Astronomy VIII. Proceedings of SPIE. No.3114. Society of Photo-optical Instrumentation Engineers (SPIE) , Bellingham, WA, pp. 535-543. ISBN 9780819425362. https://resolver.caltech.edu/CaltechAUTHORS:20180731-114053130
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Abstract
The high energy focusing telescope (HEFT) is a balloon-borne system for obtaining arcminute imagery in the 20 - 100 keV energy band. The hard x-ray optics are baselined to use thin epoxy-replicated aluminum foil substrates coated with graded-d multilayers, and we show some results on x-ray performance of prototype foil substrates. We also propose an extremely promising alternative substrate -- thermally formed glass. The advantages of thermally formed glass substrates, their fabrication and preliminary metrology on sample pieces are discussed. If ultimately feasible, the thermally formed glass is a better substrate due to its superior hard x-ray reflectivity and scattering properties in comparison to similarly coated epoxy-replicated aluminum foil. We also discuss some preliminary work on the HEFT mirror mounting concept and the associated angular resolution error budget.
| Item Type: | Book Section | ||||||
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| Additional Information: | © 1997 Society of Photo-Optical Instrumentation Engineers (SPIE). This work is Columbia Astrophysics Laboratory contribution number 642. | ||||||
| Group: | Space Radiation Laboratory | ||||||
| Subject Keywords: | X-ray optics, multilayers, thin foil optics | ||||||
| Series Name: | Proceedings of SPIE | ||||||
| Issue or Number: | 3114 | ||||||
| DOI: | 10.1117/12.278902 | ||||||
| Record Number: | CaltechAUTHORS:20180731-114053130 | ||||||
| Persistent URL: | https://resolver.caltech.edu/CaltechAUTHORS:20180731-114053130 | ||||||
| Official Citation: | Charles J. Hailey, Salim Abdali, Finn Erland Christensen, William W. Craig, Todd R. Decker, Fiona A. Harrison, Mario A. Jimenez-Garate, "Substrates and mounting techniques for the High-Energy Focusing Telescope (HEFT)", Proc. SPIE 3114, EUV, X-Ray, and Gamma-Ray Instrumentation for Astronomy VIII, (15 October 1997); doi: 10.1117/12.278902; https://doi.org/10.1117/12.278902 | ||||||
| Usage Policy: | No commercial reproduction, distribution, display or performance rights in this work are provided. | ||||||
| ID Code: | 88385 | ||||||
| Collection: | CaltechAUTHORS | ||||||
| Deposited By: | George Porter | ||||||
| Deposited On: | 31 Jul 2018 20:07 | ||||||
| Last Modified: | 16 Nov 2021 00:26 |
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