[ Identification | Description | Input parameters | Output parameters | Links ]

The Guide_curved Component

Non-focusing curved neutron guide.

Identification

• Author: Ross Stewart
• Origin:(Unknown)
• Date: November 18 2003
• Version:(Unknown)

Description

Models a rectangular curved guide tube with entrance centered on the Z axis.
The entrance lies in the X-Y plane.  Unlike Bender.comp, draws a true depiction
of the guide, and trajectories.  Guide is not focusing

Example: Guide(w1=0.1, h1=0.1, l=2.0, R0=0.99, Qc=0.021,
               alpha=6.07, m=2, W=0.003, r=2700)

%BUGS
This component does not work with gravitation on. Use component Guide_gravity then.
Systematic error on transmitted flux is found to be about 10%.

WARNING: This is a contributed Component.

Input parameters

Parameters in boldface are required; the others are optional.

Name	Unit	Description	Default
w	m	Width at the guide entry
h	m	Height at the guide entry
l	m	length of guide
R0	1	Low-angle reflectivity	0.99
Qc	AA-1	Critical scattering vector	0.0219
alpha	AA	Slope of reflectivity	6.07
m	1	m-value of material. Zero means completely absorbing.	2
W	AA-1	Width of supermirror cut-off	0.003
r	m	Radius of curvature of the guide	2700

Links

• Source code for Guide_curved.comp.
• Bender

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[ Identification | Description | Input parameters | Output parameters | Links ]

Generated automatically by McDoc, Peter Willendrup <peter.willendrup@risoe.dk> / Fri May 11 08:41:09 2012

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Last Modified: Friday, 11-May-2012 10:41:09 CEST