[ Identification | Description | Input parameters | Links ]
Test_Fermi InstrumentCross comparison of Fermi Chopper components, using McStas and contributed components, as well as rotating collimator approximations. It shows that all implementations are equivalent. However, approximating rotating guide are 30% faster than McStas Fermi chopper.
| Name | Unit | Description | Default |
| Fermi | 1 | Choice of Fermi chopper component to test, with 1=FermiChopper, 3=FermiChopper_ILL, 4=rotating Guide_gravity, 5=rotating Guide_channeled | 1 |
| lambda | AA | Mean wavelength from source | 3.39 |
| width_FC | m | total slit pack width | 0.044 |
| height_FC | m | height of FC slit pack | 0.064 |
| length_FC | m | length of FC slit pack | 0.012 |
| FC_Hz | Hz | rotation speed. Omega=2*PI*nu in rad/s, nu*60 in rpm | 100 |
| Nslit_FC | Number of slits in FC slit package | 120 | |
| d_SF | m | distance from Source to FC center | 3 |
| d_FD | m | distance from FC center to Detector | 3 |
| phase | deg | FC phase. Use -0 for automatic | 271.92 |
| time_to_arrival | 0 | ||
| time_window_width | 0 |
Test_Fermi.instr.
[ Identification | Description | Input parameters | Links ]
Generated on 2023-09-19 20:01:36