Evaluation and optimization of multilayer designs for astronomical x-ray telescopes using a field-of-view- and energy-dependent figure of merit

Peter H. Mao; Leon M. Bellan; Fiona A. Harrison; David L. Windt; Finn Erland Christensen

doi:10.1117/12.407561

28 November 2000 Evaluation and optimization of multilayer designs for astronomical x-ray telescopes using a field-of-view- and energy-dependent figure of merit

Peter H. Mao, Leon M. Bellan, Fiona A. Harrison, David L. Windt, Finn Erland Christensen

Author Affiliations +

Proceedings Volume 4138, X-Ray Optics, Instruments, and Missions IV; (2000) https://doi.org/10.1117/12.407561
Event: International Symposium on Optical Science and Technology, 2000, San Diego, CA, United States

Abstract

The three most important quantities used to assess the performance of astronomical x-ray telescope optics are the on- axis collecting area, the field of view, and the half-power diameter. The first two quantities depend on the mirror packing arrangement and the multilayer coating design. In order to optimize the coating design, we have developed a figure-of-merit (FOM) that accounts for the coating response over a specified range of energies and off-axis angles. We present an example where we have used this FOM to optimize a specific coating design for the High Energy Focusing Telescope (HEFT) and to understand tradeoffs between performance and coating thickness.

Citation Download Citation

Peter H. Mao, Leon M. Bellan, Fiona A. Harrison, David L. Windt, and Finn Erland Christensen "Evaluation and optimization of multilayer designs for astronomical x-ray telescopes using a field-of-view- and energy-dependent figure of merit", Proc. SPIE 4138, X-Ray Optics, Instruments, and Missions IV, (28 November 2000); https://doi.org/10.1117/12.407561

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