About McStas Download Documentation 
[ Identification  Description  Input parameters  Output parameters  Links ] The
Updated by: Rodion Kolevatov, 2019
Update content: sets value of a global variable m_local_refl at each reflection
to the mvalue of the coating or to 1 if missed the guide opening
Neutron guide with channels (bender section).

Name  Unit  Description  Default 

w1  m  Width at the guide entry  
h1  m  Height at the guide entry  
w2  m  Width at the guide exit  0 
h2  m  Height at the guide exit  0 
l  m  Length of guide  
R0  1  Lowangle reflectivity  0.995 
Qc  AA1  Critical scattering vector  0 
alpha  AA  Slope of reflectivity  0 
m  1  mvalue of material. Zero means completely absorbing.  0 
nslit  >= 1  [1] Number of channels in the guide  1 
d  m  Thickness of subdividing absorbing walls  0.0005 
Qcx  AA1  Critical scattering vector for left and right vertical mirrors in each channel  0.0218 
Qcy  AA1  Critical scattering vector for top and bottom mirrors  0.0218 
alphax  AA  Slope of reflectivity for left and right vertical mirrors in each channel  4.38 
alphay  AA  Slope of reflectivity for top and bottom mirrors  4.38 
W  AA1  Width of supermirror cutoff for all mirrors  0.003 
mx  1  mvalue of material for left and right vertical mirrors in each channel. Zero means completely absorbing.  1 
my  1  mvalue of material for top and bottom mirrors. Zero means completely absorbing.  1 
nu  Hz  Rotation frequency (round/s) for Fermi Chopper approximation  0 
phase  deg  Phase shift for the Fermi Chopper approximation  0 
Name  Unit  Description  Default 

w1c  
w2c  
ww  
hh  
whalf  
hhalf  
lwhalf  
lhhalf 
Guide_channeled_shieldinglogger.comp
.
[ Identification  Description  Input parameters  Output parameters  Links ]
Generated automatically by McDoc, Peter Willendrup <peter.willendrup@risoe.dk> / Tue May 26 13:03:59 2020