[ Identification | Description | Input parameters | Output parameters | Links ]
Pol_mirror
ComponentThis component models a rectangular infinitely thin mirror. For an unrotated component, the mirror surface lies in the Y-Z plane (ie. parallel to the beam). It relies on similar physics as the Monochromator_pol. The reflec function (see e.g. share/ref-lib for examples) and parameters are passed to this component to give a bigger freedom. The up direction is hardcoded to be along the y-axis (0, 1, 0) For now we assume: P(Transmit|Q) = 1 - P(Reflect|Q) i.e. NO ABSORPTION! There are 3 options: 1) Reflect and transmit (randomly choose) [default] 2) Only reflect (reduce weight) 3) Only transmit (reduce weight) The parameters can either be double pointer initializations (e.g. {1.0, 0.0219, 6.07, 2.0, 0.003}) or table names (e.g."supermirror_m2.rfl" AND useTables=1). NB! This might cause warnings by the compiler that can be ignored. Examples: Reflection function parametrization Pol_mirror(zw = 0.40, yh = 0.40, option=1, rUpFunc=StdReflecFunc, rUpPar={1.0, 0.0219, 6.07, 2.0, 0.003}) Table function Pol_mirror(zw = 0.40, yh = 0.40, option=2, rUpFunc=TableReflecFunc, rUpPar="supermirror_m2.rfl", rDownFunc=TableReflecFunc, rDownPar="supermirror_m3.rfl", useTables=1) See also the example instrument Test_Pol_Mirror (under tests). GRAVITY: YES POLARISATION: YES %BUGS NO ABSORPTION
Name | Unit | Description | Default |
---|---|---|---|
rUpFunc | 1 | Reflection function for spin up (q, *par, *r) | StdReflecFunc |
rDownFunc | 1 | Reflection function for spin down (q, *par, *r) | rUpFunc |
rUpPar | 1 | Parameters for rUpFunc | {0.99 |
rDownPar | 1 | Parameters for rDownFunc | rUpPar |
useTables | 1 | Parameters are 0: Values, 1: Table names | 0 |
zw | m | Width of the mirror | |
yh | m | Height of the mirror | |
option | 1 | 1:Reflect/trasmit, 2:Reflect only, 3:Transmit only | 1 |
Name | Unit | Description | Default |
---|---|---|---|
rUpParPtr | |||
rDownParPtr |
Pol_mirror.comp
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[ Identification | Description | Input parameters | Output parameters | Links ]
Generated automatically by McDoc, Peter Willendrup <peter.willendrup@risoe.dk> / Thu Feb 10 12:52:12 2011