[ Identification | Description | Input parameters | Links ]
Guide_simple ComponentModels a rectangular guide tube centered on the Z axis. The entrance lies in the X-Y plane. For details on the geometry calculation see the description in the McStas reference manual. The reflectivity profile may either use an analytical mode (see Component Manual) or a 2-columns reflectivity free text file with format [q(Angs-1) R(0-1)]. Example: Guide(w1=0.1, h1=0.1, w2=0.1, h2=0.1, l=2.0, R0=0.99, Qc=0.021, alpha=6.07, m=2, W=0.003 %VALIDATION May 2005: extensive internal test, no bugs found Validated by: K. Lieutenant %BUGS This component does not work with gravitation on. Use component Guide_gravity then.
| Name | Unit | Description | Default | |
| w1 | m | Width at the guide entry | ||
| h1 | m | Height at the guide entry | ||
| w2 | m | Width at the guide exit | 0 | |
| h2 | m | Height at the guide exit | 0 | |
| l | m | length of guide | ||
| R0 | 1 | Low-angle reflectivity | 0.99 | |
| Qc | AA-1 | Critical scattering vector | 0.0219 | |
| alpha | AA | Slope of reflectivity | 6.07 | |
| m | 1 | m-value of material. Zero means completely absorbing. glass/SiO2 Si Ni Ni58 supermirror Be Diamond m= 0.65 0.47 1 1.18 2-6 1.01 1.12 | 2 | |
| W | AA-1 | Width of supermirror cut-off | 0.003 |
| AT ( | , | , | ) RELATIVE | |||
|---|---|---|---|---|---|---|
| ROTATED ( | , | , | ) RELATIVE |
Guide_simple.comp.
[ Identification | Description | Input parameters | Links ]
Generated on 2024-01-03 11:47:43