CPU and memory efficient coherent mode decomposition for the partially coherent x-ray simulations

Ruizi Li; Oleg Chubar

doi:10.1117/12.2569058

25 August 2020 CPU and memory efficient coherent mode decomposition for the partially coherent x-ray simulations

Ruizi Li, Oleg Chubar

Proceedings Volume 11493, Advances in Computational Methods for X-Ray Optics V; 114930G (2020) https://doi.org/10.1117/12.2569058
Event: SPIE Optical Engineering + Applications, 2020, Online Only

Abstract

The method of the Coherent Mode Decomposition (CMD) is applied to numerical wave propagation calculations for partially-coherent X-rays, using the Fourier optics and compatible methods. Its CPU and memory efficiency is discussed in various cases of the wavefront at the source and the beam waist. With the absence of the quadratic phase terms, the required sampling density of the electric fields is effectively reduced. The problem size is thus moderate and the method is feasible to be implemented on a single-node CPU server. In other cases, the same argument holds with proper treatments of the quadratic phase terms. Tests on CMD and the modes propagation are done for the case of the Coherent Hard X-ray beamline of the National Synchrotron Light Source II, using the Synchrotron Radiation Workshop software. We observe a few hundred or less dominant decomposed modes that resemble the electric fields converge to the wavefront intensity at a high accuracy of over 99%.

Conference Presentation

Citation Download Citation

Ruizi Li and Oleg Chubar "CPU and memory efficient coherent mode decomposition for the partially coherent x-ray simulations", Proc. SPIE 11493, Advances in Computational Methods for X-Ray Optics V, 114930G (25 August 2020); https://doi.org/10.1117/12.2569058

ACCESS THE FULL ARTICLE

INSTITUTIONAL
Select your institution to access the SPIE Digital Library.

SELECT YOUR INSTITUTION

PERSONAL
Sign in with your SPIE account to access your personal subscriptions or to use specific features such as save to my library, sign up for alerts, save searches, etc.

PERSONAL SIGN IN

No SPIE Account? Create one

PURCHASE THIS CONTENT

SUBSCRIBE TO DIGITAL LIBRARY

50 downloads per 1-year subscription

Members: $195

Non-members: $335 ADD TO CART

25 downloads per 1 - year subscription

Members: $145

Non-members: $250 ADD TO CART

PURCHASE SINGLE ARTICLE

Includes PDF, HTML & Video, when available