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[ Identification | Description | Input parameters | Links ]
The Transmission_polarisatorABSnT Component
The main source code was taken from Gravity_guide (ver 1.6ill)
R0=0.99, Qc=0.021, alpha=6.07, m=1.0, W=0.003, k=1, d=0.0005)
w2=0.050, h2=0.050, l=2.700,
waferD=0.0003, FeD=2.16e-06,
Si_i=0.2, Si_a=0.215,
R0=0.99, Qc=0.02174, alpha=4.25, W=0.001,
mleft=1.2, mright=1.2, mtop=1.2, mbottom=1.2,
R0_up=0.99, Qc_up=0.014, alpha_up=2.25, W_up=0.0025, mup=1.0,
R0_down=0.99, Qc_down=0.02174, alpha_down=3.8, W_down=0.00235, mdown=2.5)
Identification
- Site:
- Author: Andreas Ostermann
- Origin: McStas 1.8/ILL (France).
- Date:
Description
Input parameters
Parameters in boldface are required; the others are optional.| Name | Unit | Description | Default | |
| w1 | m | Width at the polarizer entry | ||
| h1 | m | Height at the polarizer entry | ||
| w2 | m | Width at the polarizer exit | ||
| h2 | m | Height at the polarizer exit | ||
| l | m | length of polarizer | ||
| waferD | m | Thickness of Si wafer | ||
| Si_i | barns | Scattering cross section per atom (barns) | ||
| Si_a | barns | Absorption cross section per atom (barns) at 2200m/s | ||
| FeD | ||||
| R0 | 1 | Low-angle reflectivity of the outer guide | 0.99 | |
| Qc | AA-1 | Critical scattering vector of the outer guide | 0.02174 | |
| alpha | AA | Slope of reflectivity of the outer guide | 4.25 | |
| W | AA-1 | Width of supermirror cut-off of the outer guide | 0.001 | |
| R0_up | 1 | Low-angle reflectivity of the Fe/Si-wafer for spin up neutrons | 0.99 | |
| Qc_up | AA-1 | Critical scattering vector of the Fe/Si-wafer for spin up neutrons | 0.0109 | |
| alpha_up | AA | Slope of reflectivity of the Fe/Si-wafer for spin up neutrons | 4.25 | |
| W_up | AA-1 | Width of supermirror cut-off of the Fe/Si-wafer for spin up neutrons | 0.0025 | |
| R0_down | 1 | Low-angle reflectivity of the Fe/Si-wafer for spin down neutrons | 0.99 | |
| Qc_down | AA-1 | Critical scattering vector of the Fe/Si-wafer for spin down neutrons | 0.02174 | |
| alpha_down | AA | Slope of reflectivity of the Fe/Si-wafer for spin down neutrons | 6.25 | |
| W_down | AA-1 | Width of supermirror cut-off of the Fe/Si-wafer for spin down neutrons | 0.001 | |
| mleft | 1 | m-value of material for left. vert. mirror of the outer guide | -1 | |
| mright | 1 | m-value of material for right. vert. mirror of the outer guide | -1 | |
| mtop | 1 | m-value of material for top. horz. mirror of the outer guide | -1 | |
| mbottom | 1 | m-value of material for bottom. horz. mirror of the outer guide | -1 | |
| mup | 1 | m-value of the Fe/Si-wafer for spin up neutrons | -1 | |
| mdown | 1 | m-value of the Fe/Si-wafer for spin down neutrons | -1 |
| AT ( | , | , | ) RELATIVE | |||
|---|---|---|---|---|---|---|
| ROTATED ( | , | , | ) RELATIVE |
Links
- Source code for
Transmission_polarisatorABSnT.comp.
[ Identification | Description | Input parameters | Links ]
Generated on 2024-01-03 11:47:43
