NASA NTRS · 19760000049
Polishing technique for beryllium mirror
Abstract
Performance tests, accomplished by inserting entire X ray telescope and polished mirror into vacuum line 67 m long and taking photographs of an X ray resolution source, indicate that polishing increases mirror efficiency from 0.06 percent for X rays at 0.8 nm and increases resolution from 15 to 3.75 arc-seconds.
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Froechtenigt, J. F.. 1976-03-01. Polishing technique for beryllium mirror. https://ntrs.nasa.gov/citations/19760000049
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