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5.4 The Lens_elliptical McXtrace Component
X-ray compound refractive lens (CRL) with an elliptic profile
Identification
-
Author: Jana Baltser and Erik Knudsen
-
Origin: NBI
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Date: August 2010
Description
A simple X-ray compound refractive lens (CRL) with an elliptic profile simulates the photons’ movement on passing through it. Attenuation coefficient mu is taken from the NIST database and Be.txt
Input parameters
Parameters in boldface are required; the others are optional.
|
Name |
Unit |
Description |
Default |
|
|
|||
|
material_datafile |
Be.txt |
File where the material parameters for the filter may be found. Format is similar to what may be found off the NIST website. |
”Be.txt” |
|
r1 |
m |
Radius of the profile along the X axis |
0.42e-3 |
|
r2 |
m |
Radius of the profile along the Y axis |
0.8e-3 |
|
w |
m |
Parabola parameter, constraining it along the propagation axis |
0.46e-3 |
|
d |
m |
Distance between two surfaces of the lens along the propagation axis |
0.2e-4 |
|
Transmission |
1 |
Currently not used by the component |
1 |
|
N |
1 |
Amount of single lenses in a stack |
1 |
|
|
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|
|
|||
|
|
|||
Links
-
Component source code found in file Lens_elliptical.comp.
-
material datafile obtained from http://physics.nist.gov/cgi-bin/ffast/ffast.pl
Refractive lens
doc. pend.
