[ Identification | Description | Input parameters | Output parameters | Links ]
Source_div ComponentA flat rectangular surface source with uniform or Gaussian divergence profile and focussing. If the parametere gauss is not set (the default) the divergence profile is flat in the range [-focus_ax,focus_ay]. If gauss is set, the focux_ax,focus_ay is considered the standard deviation of the gaussian profile. Currently focussing is only active for flat profile. The "focus window" is defined by focus_xw,focus_yh and dist. The spectral intensity profile is uniformly distributed in the energy interval defined by e0+-dE/2 or by wavelength lambda0+-dlambda/2 Example: Source_div(xwidth=0.1, yheight=0.1, focus_aw=2, focus_ah=2, E0=14, dE=2, gauss=0) %VALIDATION %BUGS
| Name | Unit | Description | Default |
|---|---|---|---|
| spectrum_file | NULL | ||
| xwidth | m | Width of source | |
| yheight | m | Height of source | |
| focus_xw | 0 | ||
| focus_yh | 0 | ||
| dist | 0 | ||
| focus_aw | rd | FWHM (Gaussian) or maximal (uniform) horz. width divergence | |
| focus_ah | rd | FWHM (Gaussian) or maximal (uniform) vert. height divergence | |
| E0 | keV | Mean energy of X-rays. | 0 |
| dE | keV | Energy spread of X-rays. | 0 |
| lambda0 | AA | Mean wavelength of X-rays (only relevant for E0=0) | 0 |
| dlambda | AA | Wavelength half spread of X-rays. | 0 |
| flux | 1/(s*cm**2*st*energy unit) | flux per energy unit, Angs or meV | 0 |
| gauss | 0|1 | Criterion: 0: uniform, 1: Gaussian distributions | 0 |
| incoherent | 1 | ||
| phase | 0 |
| Name | Unit | Description | Default |
|---|---|---|---|
| prms | |||
| thetah | |||
| thetav | |||
| sigmah | rad | parameter 'sigma' of the Gaussian distribution for horizontal divergence | |
| sigmav | rad | parameter 'sigma' of the Gaussian distribution for vertical divergence | |
| tan_h | |||
| tan_v | |||
| p_init | - | normalisation factor 1/'neutron_count' | |
| dist | 0 | ||
| focus_xw | 0 | ||
| focus_yh | 0 |
Source_div.comp.
[ Identification | Description | Input parameters | Output parameters | Links ]
Generated automatically by McDoc, Peter Willendrup <peter.willendrup@risoe.dk> / Fri Sep 2 21:47:53 2011