Module Quadrangular Field

# VITESS Module Quadrangular Field

The module quadr_field simulates a magnetic field of constant field intensity in the shape of a a quadrangular or triangular prism. Outside this range, a zero magnetic field is assumed. If the edges ABCD and EFGH (cf. Figure) lie on planes each, which are not parallel, it can be treated as well.
The 3 components of the magnetic field and the origin of the new co-ordinate system have to be given (cf. figure).

Figure: quadrangular field
The positions of the 8 points marking the vertices of the prism have to be given in a file that looks like that:

    #   x     y     z
    #---------------------------------
      20.0 -30.0   5.0   # A
      60.0 -35.0   5.0   # B
      50.0  40.0   5.0   # C
      30.0  30.0   5.0   # D
      20.0 -30.0  -5.0   # E
      60.0 -35.0  -5.0   # F
      50.0  40.0  -5.0   # G
      30.0  30.0  -5.0   # H

For a triangular prism, points D and H have to be set identical to C and G (see figure). Everything behind a '#' symbol is treated as a comment.

### Parameters for module 'quadr_field'

Parameter Unit | Description | Range or Values | Command Option
field range file | input data file containing the edges of the magnetic field (see text and figure) | - | -P
magnetic field X, Y, Z [Oe] | x-, y- and z-component of the magnetic field inside the edges Outside this range, a zero magnetic field is assumed. | any | -F -G -H
output X, Y, Z [cm] | x-, y- and z-position of the output frame (in the input frame) (see figure) | any | -q -r -s

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Last modified: Tue May 8 17:08:06 MET DST 2001