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X-Ray Optics and Instrumentation
Table of Contents
Special Issues
X-Ray Optics and Instrumentation
/
2010
/
Article
/
Tab 2
/
Review Article
Diffractive X-Ray Telescopes
Table 2
The primary focus efficiency, in the absence of absorption, of a stepped approximation to a PFL (see [
34
]).
Levels
2 (PZP)
3
4
8
16
𝑛
Efficiency
40.5%
68.4%
81.1%
95.0%
98.7%
s
i
n
c
2
(
𝜋
/
𝑛
)