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[ Identification  Description  Input parameters  Output parameters  Links ] The
Fermi Chopper with rotating frame.

Name  Unit  Description  Default 

phase  deg  chopper phase at t=0  0 
radius  m  chopper cylinder radius  0.04 
nu  Hz  chopper frequency. Omega=2*PI*nu in rad/s, nu*60 in rpm. Positive value corresponds to a counterclockwise rotation around y.  100 
w  m  width of one chopper slit  0.00022475 
nslit  1  number of chopper slits  200 
R0  1  lowangle reflectivity  0.0 
Qc  AA1  critical scattering vector  0.02176 
alpha  AA  slope of reflectivity  2.33 
m  1  mvalue of material. Zero means completely absorbing.  0.0 
W  AA1  width of supermirror cutoff  2e3 
length  m  channel length of the Fermi chopper  0.012 
eff  1  efficiency = transmission x fraction of transparent material  0.95 
zero_time  1  set time to zero: 0=no, 1=once per half cycle, 2=auto adjust phase  0 
xwidth  m  optional total width of slit package  0 
verbose  1  set to 1,2 or 3 gives debugging information  0 
yheight  m  height of slit package  0.08 
curvature  m1  Curvature of slits (1/radius of curvature).  0 
delay  s  sets phase so that transmision is centered on 'delay'  0 
Name  Unit  Description  Default 

FCVars 
FermiChopper.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