The input deck is divided into sections identified by keywords separated by “/”:

/Keyword1/Keyword2/Keyword3/ . . .

The sections may be input in any order and may appear several times.

Comment lines should begin with a # or $.

Input data are read in free format within 100 characters per line of data. Every variable must be given and must be separated by at least one blank.

The first character of the first line of the free format input file Runname_0001.rad must be a #.

If a non-compulsory section is missing, default values will be taken.

There are two compulsory keywords: /RUN and /VERS.