The `Union_tagging_demo` Instrument

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

Identification

Powder in Al can

Example: Detector: Banana_monitor_I=9.84391e-09

Parameters in boldface are required; the others are optional.

Name	Unit	Description	Default
material_data_file	string	Name of data file for powder sample	"Cu.laz"
E0	meV	Source mean energy	100
dE	meV	Source energy spread	2
sample_radius	m	Sample radius	0.01
sample_height	m	Sample height	0.01
pack	1	Packing factor, 1 is full density	1
sigma_inc	barns	Incoherent cross section for powder sample	2.2
sigma_abs	barns	Absorption cross section for powder sample	15.12
Vc	AA	Unit cell volume for powder sample	47.22
geometry_interact	1	Fraction of beam to interact with geometry	0.5
incoherent_fraction	1	Fraction of scattered events that select the powder process	0.2