[ Identification | Description | Input parameters | Output parameters | Links ]

# The `Beamstop` Component

Rectangular/circular beam stop.

## Identification

- Author: Kristian Nielsen
- Origin: Risoe
- Date: January 2000
- Version: 1.8

## Description

    A simple rectangular or circular beam stop.
    Infinitely thin and infinitely absorbing.
    The beam stop is by default rectangular. You may either
    specify the radius (circular shape), or the rectangular bounds.

    Example: Beamstop(xmin=-0.05, xmax=0.05, ymin=-0.05, ymax=0.05)
             Beamstop(radius=0.1)

## Input parameters

Parameters in boldface are required; the others are optional.

Name | Unit | Description | Default
--- | --- | --- | ---
xmin | m | Lower x bound | 0
xmax | m | Upper x bound | 0
ymin | m | Lower y bound | 0
ymax | m | Upper y bound | 0
radius | m | radius of the beam stop in the z=0 plane, centered at Origo | 0

## Links

- Source code for `Beamstop.comp`.

[ Identification | Description | Input parameters | Output parameters | Links ]