[ Identification | Description | Input parameters | Links ]
Mirror_conic ComponentTest component for the reflection routines in conic.h (ConicTracer), which are used by e.g. Conics_*, FlatEllipse_finite_mirror and NMO. It models a single flat mirror so that the results can be compared directly with Mirror.comp. The mirror lies in the local y-z plane at x=0, extending from z=0 to z=length and from y=-yheight/2 to y=yheight/2. Only neutrons arriving from the x<0 side (vx>0) interact; everything else passes unaffected. Each neutron interacts at most once. conic=0: the mirror is a conic.h FlatSurf and is handled by reflectNeutronFlat(), which reflects with probability R and otherwise transmits the neutron unaffected. Compare with Mirror(transmit=1). conic=1: the mirror is a conic.h ConicSurf cylinder of (very large) radius 1 km, handled by reflectNeutronConic(), which always reflects and weights by R. Compare with Mirror(transmit=0). A Gaussian figure (slope) error can be applied via sigma_m and sigma_s; the default is 0 here, whereas the Conics_* components default to the conic.h values of 1 and 250 urad. Example: Mirror_conic(length=1, yheight=0.1, m=2)
| Name | Unit | Description | Default | |
| length | m | Length of the mirror along z | 1 | |
| yheight | m | Height of the mirror along y | 0.1 | |
| R0 | 1 | Low-angle reflectivity | 0.99 | |
| Qc | AA^-1 | Critical scattering vector | 0.021 | |
| alpha | AA | Slope of reflectivity | 6.07 | |
| m | 1 | m-value of material | 2 | |
| W | AA^-1 | Width of supermirror cut-off | 0.003 | |
| conic | 1 | 0: use FlatSurf/reflectNeutronFlat(), 1: use ConicSurf/reflectNeutronConic() | 0 | |
| sigma_m | rad | RMS meridional slope (figure) error, conic=1 only; for grazing angles below 10*sigma_m the waviness model of Hansen et al., arXiv:1612.03763 is used | 0 | |
| sigma_s | rad | RMS sagittal slope (figure) error, conic=1 only | 0 |
| AT ( | , | , | ) RELATIVE | |||
|---|---|---|---|---|---|---|
| ROTATED ( | , | , | ) RELATIVE |
Mirror_conic.comp.
[ Identification | Description | Examples | Input parameters | Links ]
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