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McStas: Pol_constBfield Component

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

The Pol_constBfield Component

Constant magnetic field.


  • Author: Peter Christiansen
  • Origin: RISOE
  • Date: July 2006
  • Version: $Revision$


Rectangular box with constant B field along y-axis (up). The
component can be rotated to make either a guide field or a spin
flipper. A neutron hitting outside the box opening or the box sides
is absorbed.

Example: Pol_constBfield(xwidth=0.1, yheight=0.1, length=0.2, fliplambda=5.0)

Input parameters

Parameters in boldface are required; the others are optional.
Name Unit Description Default
xwidth - Width of opening (m).  
yheight - Height of opening (m).  
length - Length of field (m).  
B Gauss Magnetic field along y-direction 0
fliplambda - lambda for calculating B field 0
flipangle - Angle flipped for lambda = fliplambda fliplambda and flipangle overrides B so a neutron with s = (1, 0, 0) and v = (0, 0, v(fliplambda)) will have s = (cos(flipangle), sin(flipangle), 0) after the section. 180

Output parameters

Name Unit Description Default


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

Generated automatically by McDoc, Peter Willendrup <> / Wed Apr 19 10:57:33 2017

Last Modified: Wednesday, 19-Apr-2017 12:57:33 CEST
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