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Wolter telescope

(reflecting telescope using only shallow-angle reflections)

A Wolter telescope is a telescope which uses reflections that are shallow, i.e., far from perpendicular to the surface, with a small angle between the surface and the beam. The design is intended for X-rays, which generally are not reflected by a surface nearer to perpendicular to the beam.

There are a number of subtypes that differ substantially other than aiming for the shallow-angle reflections. The design is common for X-ray telescopes. Examples:


(telescope type,X-ray)
http://en.wikipedia.org/wiki/Wolter_telescope

Referenced by:
NuSTAR
reflector telescope

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