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7.2 The Set_pol McStas Component
(Unphysical) way of setting the polarization.
Identification
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Author: Peter Christiansen
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Origin: Risoe
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Date: August 2006
Description
This component has no physical size (like Arm - also drawn that way), but is used to set the polarisation in one of four ways: 1) (randomOn=0, normalize=0) Hardcode the polarisation to the vector (px, py, pz) 2) (randomOn!=0, normalize!=0) Set the polarisation to a random vector on the unit sphere 3) (randomOn!=0, normalize=0) Set the polarisation to a radnom vector within the unit sphere 4) (randomOn=0, normalize!=0) Hardcode the polarisation to point in the direction of (px,py,pz) but with polarization=1. Example: Set_pol(px=0, py=-1, pz=0)
Input parameters
Parameters in boldface are required; the others are optional.
|
Name |
Unit |
Description |
Default |
|
|
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|
px |
1 |
X-component of polarisation vector (can be negative) |
0 |
|
py |
1 |
Y-component of polarisation vector (can be negative) |
0 |
|
pz |
1 |
Z-component of polarisation vector (can be negative) |
0 |
|
randomOn |
1 |
Generate random values if randomOn!=0. |
0 |
|
normalize |
1 |
Normalize the polarization vector to unity length. |
0 |
|
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Links
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Component source code found in file Set_pol.comp.
