[ Identification | Description | Input parameters | Links ]

# The `Mirror_Parabolic` Component

Parabolic mirror.

## Identification

- Site:
- Author: Sylvain Desert
- Origin: LLB
- Date: 2007

## Description

    Models a parabolic mirror. The reflectivity profile is given by a 2-column reflectivity free
    text file with format [q(Angs-1) R(0-1)].

    Example:  Mirror_Parabolic(reflect="supermirror_m3.rfl", xwidth = 0.05, xshift=0.05,
    yheight = 2e-4, focus = 6.6e-4)

## Input parameters

Parameters in boldface are required; the others are optional.

Name | Unit | Description | Default |
reflect | q(Angs-1) R(0-1) | (str) Reflectivity file name. Format | 0 |
xwidth | m | width of the illuminated parabola | 0.05 |
xshift | m | distance between the beam centre and the symetric axis of the parabolla | 0.019 |
yheight | m | height of the mirror | 2e-4 |
focus | m | focal length | 6.6e-4 |
R0 | 1 | Low-angle reflectivity | 0.99 |
Qc | AA-1 | Critical scattering vector | 0.0219 |
alpha | AA | Slope of reflectivity | 6.07 |
m | 1 | m-value of material. Zero means completely absorbing. | 1.0 |
W | AA-1 | Width of supermirror cut-off | 0.003 |

AT ( | , | , |  | ) RELATIVE |  |
ROTATED ( | , | , |  | ) RELATIVE |

## Links

- Source code for `Mirror_Parabolic.comp`.

[ Identification | Description | Input parameters | Links ]