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

The Guide_curved Component

Non-focusing curved neutron guide.

Identification

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


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

Generated automatically by McDoc, Peter Willendrup <peter.willendrup@risoe.dk> / Thu Feb 10 12:52:12 2011