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- Title
Simulating and optimizing compound refractive lens-based X-ray microscopes.
- Authors
Simons, Hugh; Ahl, Sonja Rosenlund; Poulsen, Henning Friis; Detlefs, Carsten
- Abstract
A comprehensive optical description of compound refractive lenses (CRLs) in condensing and full-field X-ray microscopy applications is presented. The formalism extends ray-transfer matrix analysis by accounting for X-ray attenuation by the lens material. Closed analytical expressions for critical imaging parameters such as numerical aperture, spatial acceptance (vignetting), chromatic aberration and focal length are provided for both thin- and thick-lens imaging geometries. These expressions show that the numerical aperture will be maximized and chromatic aberration will be minimized at the thick-lens limit. This limit may be satisfied by a range of CRL geometries, suggesting alternative approaches to improving the resolution and efficiency of CRLs and X-ray microscopes.
- Subjects
X-ray microscopy; ACHROMATISM; NUMERICAL apertures; FOCAL length; TRANSFER matrix
- Publication
Journal of Synchrotron Radiation, 2017, Vol 24, Issue 2, p392
- ISSN
0909-0495
- Publication type
Article
- DOI
10.1107/S160057751602049X