31 August 2009 On the design of wide-field x-ray telescopes
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Abstract
X-ray telescopes having a relatively wide field-of-view and spatial resolution vs. polar off-axis angle curves much flatter than the parabolic dependence characteristic of Wolter I designs are of great interest for surveys of the X-ray sky and potentially for study of the Sun's X-ray emission. We discuss the various considerations affecting the design of such telescopes, including the possible use of polynomial mirror surface prescriptions, a method of optimizing the polynomial coefficients, scaling laws for mirror segment length vs. intersection radius, the loss of on-axis spatial resolution, and the positioning of focal plane detectors.
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Ronald F. Elsner, Stephen L. O'Dell, Brian D. Ramsey, Martin C. Weisskopf, "On the design of wide-field x-ray telescopes", Proc. SPIE 7437, Optics for EUV, X-Ray, and Gamma-Ray Astronomy IV, 74370F (31 August 2009); doi: 10.1117/12.831262; https://doi.org/10.1117/12.831262
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