research papers
Based on the the third-order aberration theory of plane-symmetric optical systems, this paper studies the effect on aberrations of the second-order accuracy of aperture-ray coordinates and the extrinsic aberrations of this kind of optical system; their calculation expressions are derived. The resultant aberration expressions are then applied to calculate the aberrations of two design examples of soft X-ray and vacuum ultraviolet (XUV) optical systems; images are compared with ray-tracing results using SHADOW software to validate the aberration expressions. The study shows that the accuracy of the aberration expressions is satisfactory.
Keywords: soft X-ray and vacuum ultraviolet; intrinsic aberrations; extrinsic aberrations; synchrotron optics; optical design.
Supporting information
Portable Document Format (PDF) file https://doi.org/10.1107/S1600577519007823/ve5105sup1.pdf |