The `Exact_radial_coll` Component

An exact radial Soller collimator.

Identification

Author: Roland Schedler
Origin: HMI
Date: October 2006
Version: 1.1
Modification history:
- using Collimator_radial Component

Description

Radial Soller collimator with rectangular opening, specified length and
specified foil thickness.
The collimator is made of many trapezium shaped channels stacked radially.
The channels are separated by absorbing foils, the whole stuff is inside
an absorbing housing.
The component should be positioned at the radius center. The model is exact.
The neutron beam outside the collimator area is transmitted unaffected.

Example: Exact_radial_coll(theta_mini=-5, theta_maxi=5, channels=100,
         in_radius=1.0, length=.3, h_in=.2, h_out=.3, foil_thick=0.0001)

WARNING: This is a contributed Component.

Input parameters

Parameters in boldface are required; the others are optional.

Name	Unit	Description	Default
theta_mini	deg	Minimum Theta angle for the radial setting	-5
theta_maxi	deg	Maximum Theta angle for the radial setting	5
channels	1	Number of channels in the theta range	100
in_radius	m	Inner radius (focus point to foil start point).	1.0
length	m	Length of the foils / collimator	.5
h_in	m	Input window height	.3
h_out	m	Output window height	.4
foil_thick	m	Thickness of the absorbing foils	0.0001
verbose	0/1	Gives additional information	1

Output parameters

Name	Unit	Description	Default
alpha_in
alpha_out
out_radius
beta_in
beta_out
divergence

The Exact_radial_coll Component

Identification

Description

Input parameters

Output parameters

Links

The `Exact_radial_coll` Component