[ Identification | Description | Input parameters | Links ]

# The `Test_DiskChoppers2` Instrument

Simple test instrument that compares DiskChoppers with a simple, rotating Slit.

## Identification

- Site: Tests_optics
- Author: Peter Willendrup <pkwi@fysik.dtu.dk>
- Origin: DTU
- Date: September 2018

## Description

    Simple test instrument that compares DiskChoppers with a simple, rotating Slit.
    When ABSORBER is set, a slab of B4C is acts as absorbing medium.

## Input parameters

Parameters in boldface are required; the others are optional.

Name | Unit | Description | Default
chopper | int | chopper=0 selects DiskChopper, chopper=1 selects a rotating Slit | 0
lambda | AA | Mean wavelength produced from the source | 10
dlambda | AA | Halfwidth of wavelenghts produced from the source | 9.9
deltay | m | Position of centre of rotation vs. beam in slit case | 0.19
dx |  |  | 0.016
nu | Hz | Chopper frequency | 10
phase | deg | Chopper phase | 0
ABSORBER | 1 | Flag to indicate if slab is B4C(=1) or perfect(=0) | 0
tz | m | Thickness of B4C slab | 0.001

## Links

- Source code for `Test_DiskChoppers2.instr`.

[ Identification | Description | Input parameters | Links ]