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

The Collimator_linear Component

A simple analytical Soller collimator (with triangular transmission).

Identification

Description

Soller collimator with rectangular opening and specified length. The
transmission function is an average and does not utilize knowledge of the
actual neutron trajectory. A zero divergence disables collimation (then the
component works as a double slit).

Example: Collimator_linear(xmin=-0.1, xmax=0.1, ymin=-0.1, ymax=0.1,
          len=0.25, divergence=40,transmission=0.7)

Input parameters

Parameters in boldface are required; the others are optional.
Name Unit Description Default
xmin m Lower x bound on slits 0
xmax m Upper x bound on slits 0
ymin m Lower y bound on slits 0
ymax m Upper y bound on slits 0
xwidth m Width of slits 0
yheight m Height of slits 0
len m Distance between slits  
divergence minutes of arc Divergence horizontal angle (calculated as atan(d/len), where d is the blade spacing) 40
transmission 1 Transmission of Soller (0<=t<=1) 1
divergenceV minutes of arc Divergence vertical angle 0

Output parameters

Name Unit Description Default
slope  
slopeV  

Links


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

Generated automatically by McDoc, Peter Willendrup <peter.willendrup@risoe.dk> / Fri Feb 11 10:12:09 2011