[ 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: Soller(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  
xmax m Upper x bound on slits  
ymin m Lower y bound on slits  
ymax m Upper y bound on slits  
len m Distance between slits  
divergence minutes of arc Divergence angle (calculated as atan(d/len), where d is the blade spacing) 40
transmission 1 transmission of Soller (0<=t<=1) 1

Output parameters

Name Unit Description Default
slope  

Links


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

Generated automatically by McDoc, Peter Willendrup <peter.willendrup@risoe.dk> / Feb 28 2006