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

# The `He3_cell` Component

Polarised 3He cell

## Identification

- Author: Trefor Roberts
- Origin: ILL
- Date: March 1999
- Version: 1.0

## Description

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

    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 | -1 to +1 | polarisation of the 3He gas | 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

## Links

- Source code for `He3_cell.comp`.
- Identification | Description | Input parameters | Output parameters | Links ]