[ Identification | Description | Input parameters | Links ]

# The `Pol_triafield` Component

Constant magnetic field in a isosceles triangular coil

## Identification

- Site:
- Author: Morten Sales, based on Pol_constBfield by Peter Christiansen
- Origin: Helmholtz-Zentrum Berlin
- 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 |
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 |

AT ( | , | , |  | ) RELATIVE |  |
ROTATED ( | , | , |  | ) RELATIVE |

## Links

- Source code for `Pol_triafield.comp`.

[ Identification | Description | Input parameters | Links ]