[ Identification | Description | Input parameters | Links ]

# The `Test_Magnon_bcc_TAS` Instrument

Generic TAS instrument for test of samples with dispersions.

## Identification

- Site: Tests_samples
- Author: Kim Lefmann (lefmann@nbi.ku.dk)
- Origin: UCPH
- Date: 22.07.2018

## Description

    Generic TAS instrument for test of samples with dispersions. Modeled over the RITA-2 instrument at PSI (one analyzer only). The instrument is able to position in q-space at q=(h 0 0) and fixed Ei and Ef. This can be used to longitudinal constant-E scans or constant-q scans. In addition, transverse constant-E scans can be made by scanning the sample orientation A3.

## Input parameters

Parameters in boldface are required; the others are optional.

Name | Unit | Description | Default
hw | meV | Neutron energy transfer | 0.5
Ef | meV | Final neutron energy | 5
A3offset | deg | sample rotation around a vertical axis | 0
A3auto | 1 | Flag for selecting automatic setting of A3 to have q-vector along [h 0 0] (0=manual; 1=auto) | 1
aa | AA | lattice parameter for cubic system (passed on to the sample component) | 4.5
qh | 1 | Length of the q-vector in r.l.u., sets the value of scattering angle A4. If A3auto=1, then A3 is set to q=[qh 0 0] | 1.1
highres | 1 | Flag for setting unrealistic high resolution (used for fine testing) (0=standard TAS / RITA2; 1=high resolution TAS) | 0
sample_J | meV | Nearest Neighbor magnetic interaction in sample | 0.2
TT | K | temperature | 300
FerroMagnet |  | Flag: 1 if ferromagnet, 0 if AFM | 0
Verbose | 1 | Flag for printing of test statements from magnon component (0=silent, 1=print) | 0

## Links

- Source code for `Test_Magnon_bcc_TAS.instr`.
- <reference/HTML link>

[ Identification | Description | Input parameters | Links ]