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

The Bender Component

Models a curved neutron guide.

Identification

Description

Models a curved neutron guide.The entrance lies in the X-Y plane, centered 
on the Z axis. The neutrons will also leave the bender in the X-Y plane at 
the z-value l=r*Win, so you don't have to calculate the real exit coordinates 
and you do not need a new arm. The bender is bent to the negative X axis; 
it behaves like a parallel guide in the Y axis.
You may either enter the deviation angle 'Win' or the length 'l'.
The bender is shown straight, even if the implemented model is curved.
Thus, you don't have to shift the following component by the curved deviation.

Example: Bender(w=0.05,h=0.12,r=250,d=0.001,Win=0.04,k=1,
  R0a=0.99,Qca=0.021,alphaa=6.07,ma=2,Wa=0.003,
  R0i=0.99,Qci=0.021,alphai=6.07,mi=2,Wi=0.003,
  R0s=0.99,Qcs=0.021,alphas=6.07,ms=2,Ws=0.003)

See also Additional note from Philipp Bernhardt.


Input parameters

Parameters in boldface are required; the others are optional.
Name Unit Description Default
w m Width at the bender entry and exit  
h m Height at the bender entry and exit  
r m Radius of the bender  
d m Thickness of the partition, which separates the channels 0.001
Win rad Angle of the deflection of the whole bender 0.04
k 1 Number of channels inside the bender 1
R0a 1 Low-angle reflectivity at the bender concave side 0.99
Qca AA-1 Critical scattering vector 0.021
alphaa AA Slope of reflectivity 6.07
ma 1 m-value of material 2
Wa AA-1 Width of supermirror cut-off 0.003
R0i 1 Low-angle reflectivity at the bender convex side 0.99
Qci AA-1 Critical scattering vector 0.021
alphai AA Slope of reflectivity 6.07
mi 1 m-value of material 2
Wi AA-1 Width of supermirror cut-off 0.003
R0s 1 Low-angle reflectivity at bender top and bottom side 0.99
Qcs AA-1 Critical scattering vector 0.021
alphas AA Slope of reflectivity 6.07
ms 1 m-value of material 2
Ws AA-1 Width of supermirror cut-off 0.003
l m length of bender l=r*Win 0

Output parameters

Name Unit Description Default
bk  
mWin  

Links


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

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