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[ Identification | Description | Input parameters | Links ]
The Collimator_linear Component
A simple analytical Soller collimator (with triangular transmission).
Identification
- Site:
- Author: Peter Willendrup
- Origin: DTU
- Date: October 2024
Description
Soller collimator with rectangular opening and specified length. The transmission function is an average and does not utilize knowledge of the actual neutron trajectory. A zero divergence disables collimation (then the component works as a double slit). Example: Collimator_linear(xmin=-0.1, xmax=0.1, ymin=-0.1, ymax=0.1, length=0.25, divergence=40,transmission=0.7)
Input parameters
Parameters in boldface are required; the others are optional.| Name | Unit | Description | Default | |
| xmin | m | Lower x bound on slits | -0.01 | |
| xmax | m | Upper x bound on slits | 0.01 | |
| ymin | m | Lower y bound on slits | -0.025 | |
| ymax | m | Upper y bound on slits | 0.025 | |
| xwidth | m | Width of slits | 0 | |
| yheight | m | Height of slits | 0 | |
| length | m | Distance between input and output slits | 0.1 | |
| divergence | minutes of arc | Divergence horizontal angle (calculated as atan(d/length), where d is the blade spacing) | 10 | |
| transmission | 1 | Transmission of Soller (0<=t<=1) | 1 | |
| divergenceV | minutes of arc | Divergence vertical angle | 0 |
| AT ( | , | , | ) RELATIVE | |||
|---|---|---|---|---|---|---|
| ROTATED ( | , | , | ) RELATIVE |
Links
- Source code for
Collimator_linear.comp.
[ Identification | Description | Input parameters | Links ]
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