Optional, mutually exclusive parameters (if not specified, output will
be provided for all cavities in the model)
CAVITY
Set this parameter equal to the name of the cavity for which this output
request is being made.
ELSET
Set this parameter equal to the name of the element set for which this
output request is being made.
SURFACE
Set this parameter equal to the name of the surface for which this output
request is being made.
Optional parameters
VARIABLE
Set VARIABLE=ALL to indicate that all cavity radiation variables applicable to
this procedure and material type should be written to the output database.
If this parameter is omitted, the cavity radiation variables requested for
output must be specified on the data lines.