Abstract
Optical design of nested conical Wolter I X-ray telescope covering energy
band from 1 to 30 keV is investigated systematically. Recurrence relation of the
nested structure is deduced, and the impact of the initial parameters on the
performance is analyzed. Due to the need for hard X-ray astronomical observations in
China, the initial structure is presented, for which six groups of W/B<sub>4</sub>C aperiodic
multilayer coatings between the innermost and the outermost shell of the mirror are
designed. The effective area, resolution, and field of view are calculated in the
simulation. The results show that the effective area can achieve 71 cm<sup>2</sup> and the
field of view can achieve 13' at 30 keV. The resolution is estimated to be ~10" in
half-power diameter.
© 2012 Chinese Optics Letters
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