NASA NTRS · 20140016689
Toward Large-Area Sub-Arcsecond X-Ray Telescopes
Abstract
The future of x-ray astronomy depends upon development of x-ray telescopes with larger aperture areas (approx. = 3 square meters) and fine angular resolution (approx. = 1 inch). Combined with the special requirements of nested grazing-incidence optics, the mass and envelope constraints of space-borne telescopes render such advances technologically and programmatically challenging. Achieving this goal will require precision fabrication, alignment, mounting, and assembly of large areas (approx. = 600 square meters) of lightweight (approx. = 1 kilogram/square meter areal density) high-quality mirrors at an acceptable cost (approx. = 1 million dollars/square meter of mirror surface area). This paper reviews relevant technological and programmatic issues, as well as possible approaches for addressing these issues-including active (in-space adjustable) alignment and figure correction.
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ODell, Stephen L., Aldcroft, Thomas L., Allured, Ryan, Atkins, Carolyn, Burrows, David N., Cao, Jian, Chalifoux, Brandon D., Chan, Kai-Wing, Cotroneo, Vincenzo, Elsner, Ronald F., Graham, Michael E., Gubarev, Mikhail V., Heilmann, Ralf K., Johnson-Wilke, Raegan L., Kilaru, Kiranmayee, Kolodziejczak, Jeffery J., Lillie, Charles F., McMuldroch, Stuart, Ramsey, Brian D., Reid, Paul B., Riveros, Raul E., Roche, Jacqueline M., Saha, Timo T., Weisskopf, Martin C., Zhang, William W.. 2014-08-17. Toward Large-Area Sub-Arcsecond X-Ray Telescopes. https://ntrs.nasa.gov/citations/20140016689
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