Proposed X-ray telescope made of many concentric reflecting rings, each of which consists of two portions of cone. Proposed design is variation on conventional grazing incidence X-ray telescope, which has just one twosegment reflecting element but suffers from excessive astigmatism and field curvature. Using many short elements instead of single long element, new design gives nearly anastigmatic image.
Nearly Anastigmatic X-Ray Telescope
NASA Tech Briefs ; 9 , 1
1985-06-01
Sonstige
Keine Angabe
Englisch
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