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McXtrace - An X-ray ray-trace simulation package

ESRF; SAXSLAB Niels Bohr Institute DTU Physics



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McXtrace: ZonePlate Component

[ Identification | Description | Input parameters | Output parameters | Links ]

The ZonePlate Component

Zone plate based on Monte Carlo sampling of the Fresnel-Kirchhoff integral


  • Author: Erik Knudsen
  • Origin: DTU Physics
  • Date: June 16, 2009
  • Version: 1.0


A component which models a zone plate by consierding the plate a secondary source
and then by means of Monte Carlo sampling, evaluating the Fresnel-Kirchhoff integral
implicitly by resampling the beam in a window defined by the focus_xw,focus_yh parameters.

Caveat emptor: this is a computationally heavy component to run. 
The zone plate can be iether circular or linear. In the linear case, the "slits" are
along the x-axis.

Input parameters

Parameters in boldface are required; the others are optional.
Name Unit Description Default
radius m The outer radius of the zone plate. Triggers a circular zone plate. Takes precedence over xwidth,yheight. 0
xwidth m Width of linear zone plate. 0
yheight m Height of linear zone plate 0
L m Focal length.  
lambda0 AA The nominal wavelength that the zone plate is designed to focus.  
focus_x0 m Offset of resampling window along the x-axis. 0
focus_y0 m Offset of resampling window along the y-axis. 0
focus_xw m Width of the resampling window.  
focus_yh m Height of the resampling window.  
dist m Distance along the z-axis from zone plate to the resampling window.  

Output parameters

Name Unit Description Default


[ Identification | Description | Input parameters | Output parameters | Links ]

Generated automatically by McDoc, Peter Willendrup <> / Mon Aug 16 15:54:47 2021

Last Modified: Monday, 16-Aug-2021 17:54:47 CEST
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