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McXtrace - An X-ray ray-trace simulation package

ESRF; SAXSLAB Niels Bohr Institute DTU Physics

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McXtrace: TwinKB_ML Component

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

The TwinKB_ML Component

Elliptic multilayer mirror Reads reflectivity values from a data input file (Ref.dat) for a W/B4C multilayer. The multilayer code reflects ray in an ideal geometry, the reflectivity datafile accounts for surface roughness, sigma. The mirror is positioned such that the long axis of the mirror elliptical surface coincides with z-axis

Identification

  • Author: Jana Baltser, Peter Willendrup, Anette Vickery, Andrea Prodi, Erik Knudsen, Jesper Buch Jensen
  • Origin: NBI
  • Date: May 2012
  • Version: 1.0

Description

The algorithm:
 Incoming photon's coordinates and direction (k-vector) are transformed into an elliptical reference frame 
(elliptical parameters are calculated according to the mirror's position and its focusing distances and the  * incident angle), the intersection point is then defined. A new, reflected photon is then starting at the  
point of intersection.


Input parameters

Parameters in boldface are required; the others are optional.
Name Unit Description Default
reflectivity_datafile "Ref.txt"
theta degrees - incident angle 1.2
s1 m - distance from the source to the multilayer  
s2 m - focusing distance of the multilayer  
length m - length of the mirrors 0.6
width m - width of the mirror along x-axis 0.2
R0 - - reflectivity, R0=1 for an ideal situation, otherwise R0=0 - the code reads the reflectivity from the datafile 0

Output parameters

Name Unit Description Default
prms_m  
a  
b  
c  
M  
Z0  
Y0  
xi  
cost0  

Links


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

Generated automatically by McDoc, Peter Willendrup <peter.willendrup@risoe.dk> / Wed Aug 16 00:25:17 2017


Last Modified: Wednesday, 16-Aug-2017 02:25:17 CEST
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