[ Identification | Description | Input parameters | Links ]

# The `Single_crystal_validation` Instrument

## Identification

- Site: Union_validation
- Author: Mads Bertelsen
- Origin: Johns Hopkins University, Baltimore
- Date: May 2016

## Description

    Validation of Union single crystal against standard single_crystal.

## Input parameters

Parameters in boldface are required; the others are optional.

Name | Unit | Description | Default
comp_select | 1 | 1: Union components, 2: Single crystal | 1
material_data_file | string | Sample material defintion | "YBaCuO.lau"
sigma_inc | barns | Sample incoherent cross-section | 2.105
my_absorption_union | m^-1 | Sample mass-absorption coefficient | 8.55
sigma_abs_sc | banrs | Sample absorption cross-section | 0
delta_d_d |  | Sample latttice spacing variation | 1e-4
mosaic | arcmin | Sample mosaicity | 5
unit_cell_volume | AA | Sample unit cell volume | 173.28
lam0 | AA | Source mean wavelength | 7
dlam | AA | Source wavelength spread | 5
xwidth | m | Sample x-dimension | 0.01
yheight | m | Sample y-dimension | 0.01
zdepth | m | Sample z-dimension | 0.01
x_rotation_geometry | deg | Rotates union geometry component around x | 0
y_rotation_geometry | deg | Rotates union geometry component around y | 0
x_rotation_geometry_ref | deg | Rotates reference component around x | 0
y_rotation_geometry_ref | deg | Rotates reference component around y | 0
x_rotation_process | deg | Rotates crystal process (crystal orientation), x | 0
y_rotation_process | deg | Rotates crystal process (crystal orientation), y | 0
geometry_interact | deg | Rotates crystal process (crystal orientation), z | 0
PG |  | Sample PG-mode | 0
powder |  | Sample powder-mode | 0

## Links

- Source code for `Single_crystal_validation.instr`.

[ Identification | Description | Input parameters | Links ]