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14.59 The Pol_triafield McStas Component
Constant magnetic field in a isosceles triangular coil
Identification
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Author: Morten Sales, based on Pol_constBfield by Peter Christiansen
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Origin: Helmholtz-Zentrum Berlin
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Date: 2013
Description
Rectangular box with constant B field along y-axis (up) in a isosceles triangle. There is a guide (or precession) field as well. It is along y in the entire rectangular box. A neutron hitting outside the box opening or the box sides is absorbed.
__________________ | /\ | | Bguide/ \Bguide | x | / \ | ^ | / \ | | | / B \ | |-----> z | / and \ | | / Bguide \ | | / \ | |/________________\|
The angle of the inclination of the triangular field boundary is given by the arctangent to xwidth/(0.5*zdepth)
This component does NOT take gravity into account.
Example: Pol_triafield(xwidth=0.1, yheight=0.1, zdepth=0.2, B=1e-3, Bguide=0.0)
Input parameters
Parameters in boldface are required; the others are optional.
|
Name |
Unit |
Description |
Default |
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xwidth |
m |
Width of opening |
|
|
yheight |
m |
Height of opening |
|
|
zdepth |
m |
zdepth of field |
|
|
B |
T |
Magnetic field along y-direction inside triangle |
0 |
|
Bguide |
T |
Magnetic field along y-direction inside entire box |
0 |
|
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Links
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Component source code found in file Pol_triafield.comp.
