NDLI: Diffractive x-ray telescopes

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Diffractive x-ray telescopes

Content Provider	NASA Technical Reports Server (NTRS)
Author	Skinner, Gerald K.
Copyright Year	2010
Description	Diffractive X-ray telescopes, using zone plates, phase Fresnel lenses, or related optical elements have the potential to provide astronomers with true imaging capability with resolution many orders of magnitude better than available in any other waveband. Lenses that would be relatively easy to fabricate could have an angular resolution of the order of micro-arc-seconds or even better, that would allow, for example, imaging of the distorted spacetime in the immediate vicinity of the super-massive black holes in the center of active galaxies. What then is precluding their immediate adoption? Extremely long focal lengths, very limited bandwidth, and difficulty stabilizing the image are the main problems. The history, and status of the development of such lenses is reviewed here and the prospects for managing the challenges that they present are discussed.
File Size	2065009
Page Count	43
File Format	PDF
Alternate Webpage(s)	http://archive.org/details/NASA_NTRS_Archive_20100015394
Archival Resource Key	ark:/13960/t0gv0km58
Language	English
Publisher Date	2010-02-19
Access Restriction	Open
Subject Keyword	Optics Active Galaxies Fabrication Fresnel Lenses Angular Resolution Gamma Ray Telescopes Diffractive Optics Bandwidth Imaging Techniques Black Holes Astronomy Space-time Functions X Ray Telescopes Ntrs Nasa Technical Reports Server (ntrs) Nasa Technical Reports Server Aerodynamics Aircraft Aerospace Engineering Aerospace Aeronautic Space Science
Content Type	Text
Resource Type	Article

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