Description¶

Creates a model for a chopper using the given parameters. The parameters are given as a string to allow flexibility for each chopper model having different parameterisation.

The chopper point is an index that can be used for multi-chopper instruments. The indices start from zero, with this being closest to moderator.

Available models with parameter names:

FermiChopper -
- AngularVelocity - The angular velocity value or log name
- ChopperRadius - The radius, in metres, of the whole chopper
- SlitThickness - The thickness, in metres, of the slit
- SlitRadius - The radius of curvature, in metres, of the slit
- JitterSigma - The FWHH value for the jitter calculation in microseconds
- Ei - The Ei for this run as a value or log name

ERROR: No algorithm ‘CreateChopperModel’ version ‘1’, skipping directive