High-throughput replica optics.
Some simple formulas are derived to calculate the maximum effective area that can be obtained by Kirkpatrick-Baez, Wolter, and conical x-ray telescopes in those cases for which that area is limited by the focal length. Electroforming and epoxy replication techniques are reviewed, and the design and production technology chosen for the high throughput telescopes to be flown on the European X-Ray Spectroscopy Mission are presented.
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