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[ Identification | Description | Examples | Input parameters | Links ]
The Powder_validation Instrument
Validation of Union powder against standard PowderN component.
Identification
- Site: Union_validation
- Author: Mads Bertelsen
- Origin: Johns Hopkins University, Baltimore
- Date: May 2016
Description
Validation of Union powder against standard PowderN component.
Examples
(Test cases in bold)- Test: comp_select=1 Detector: detectors_m4pi_I=67635.2
- Test: comp_select=2 Detector: detectors_m4pi_I=67635.2
- Test: comp_select=1 Detector: PSDlin_scattering_I=5.79875
- Test: comp_select=2 Detector: PSDlin_scattering_I=5.79875
- Test: comp_select=1 d_phi=0 Detector: PSD2lin_scattering_I=5
- Test: comp_select=2 d_phi=0 Detector: PSD2lin_scattering_I=5
- Test: comp_select=1 div=0.5 dE=1 d_phi=0 sigma_inc=3.4176 sigma_abs=2.9464 Vc=1079.1 material_data_file=Na2Ca3Al2F14.laz Detector: detectors_m4pi_I=3750
- Test: comp_select=2 div=0.5 dE=1 d_phi=0 sigma_inc=3.4176 sigma_abs=2.9464 Vc=1079.1 material_data_file=Na2Ca3Al2F14.laz Detector: detectors_m4pi_I=3750
- Test: comp_select=1 div=0.5 dE=1 d_phi=0 sigma_inc=3.4176 sigma_abs=2.9464 Vc=1079.1 material_data_file=Na2Ca3Al2F14.laz Detector: PSDlin_scattering=2.88
- Test: comp_select=2 div=0.5 dE=1 d_phi=0 sigma_inc=3.4176 sigma_abs=2.9464 Vc=1079.1 material_data_file=Na2Ca3Al2F14.laz Detector: PSDlin_scattering=2.88
- Test: comp_select=1 div=0.5 dE=1 d_phi=0 sigma_inc=3.4176 sigma_abs=2.9464 Vc=1079.1 material_data_file=Na2Ca3Al2F14.laz Detector: Banana_monitor_I=12.5
- Test: comp_select=2 div=0.5 dE=1 d_phi=0 sigma_inc=3.4176 sigma_abs=2.9464 Vc=1079.1 material_data_file=Na2Ca3Al2F14.laz Detector: Banana_monitor_I=12.5
Input parameters
Parameters in boldface are required; the others are optional.| Name | Unit | Description | Default |
| comp_select | 1 | 1=Union components, 2=PowderN | 1 |
| material_data_file | string | Powder sample definition | "Al.laz" |
| E0 | meV | Source mean energy | 100 |
| dE | meV | Source energy spread | 2 |
| sample_radius | m | Sample radius | 0.01 |
| sample_height | m | Sample height | 0.01 |
| pack | Sample packing factor | 1 | |
| sigma_inc | barns | Sample incoherent cross-section | 0.0328 |
| sigma_abs | barns | Sample absorption cross-section | 0.924 |
| Vc | AA | Sample unit cell volume | 66.4 |
| geometry_interact | p_interact for the sample | 0.5 | |
| incoherent_fraction | Fraction of statistics assigned for incoherent scattering | 0.2 | |
| div | deg | Source divergence (angular w and h) | 1.5 |
| d_phi | deg | Restriction of Debye-Scherrer cones around scattering plane 0=full illumination | 30 |
Links
- Source code for
Powder_validation.instr.
[ Identification | Description | Examples | Input parameters | Links ]
Generated for mcstas 3.8.4
