Design of conical Wolter-I geometry with sectioned secondary mirrors for x-ray telescopes
نویسندگان
چکیده
منابع مشابه
Fabrication of large secondary mirrors for astronomical telescopes
A new class of telescope is being built with primary mirrors as large as 8.4 meters in diameter and as fast as f/i . Fabricating the secondary mirrors for these telescopes has presented tough challenges because of their large sizes, up to 1.7 meter diameter; their aspheric departure of more than 300 microns; the required figure accuracy of a few tens of nanometers; and the fact that they are ty...
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Grazing incidence mirrors for X–ray astronomy are usually designed in the parabola-hyperbola (Wolter I) configuration. This design allows for optimal images on-axis, which however degrade rapidly with the off-axis angle. Mirror surfaces described by polynomia (with terms higher than order two), have been put forward to improve the performances over the field of view. Here we present a refined p...
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ژورنال
عنوان ژورنال: Journal of Astronomical Telescopes, Instruments, and Systems
سال: 2019
ISSN: 2329-4124
DOI: 10.1117/1.jatis.5.1.014004