[ Identification | Description | Input parameters | Links ]

# The `He3_cell` Component

Polarised 3He cell

## Identification

- Site:
- Author: Trefor Roberts & Erik B Knudsen
- Origin: ILL/DTU Physics
- Date: March 1999

## Description

    Simple cylindrical polarised 3He neutron spin filter cell.
    The glass container for the cell is not included in the model.

    This component has been validated against:
    Batz, M, Baessler, S, Heil, W, et al., J Res Natl Inst Stand Technol. 2005;110(3):293–298.

    Example: He3_cell(radius=0.1,length=.2,pressure=3,p3he=0.7,bx=0,by=1e-3,bz=0)

## Input parameters

Parameters in boldface are required; the others are optional.

Name | Unit | Description | Default |
radius | m | radius of the cylinder |  |
length | m | length of the cylinder |  |
pressure | bar | pressure of the gas in the cell | 3 |
p3he |  | polarisation of the 3He gas [-1 to +1] | 0.7 |
bx | tesla | x component of field at the cell | 0 |
by | tesla | y component of field at the cell | 1e-3 |
bz | tesla | z component of field at the cell | 0 |

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

## Links

- Source code for `He3_cell.comp`.

[ Identification | Description | Input parameters | Links ]