Preprocessor in Flair

Dear experts,
If I want to add the preprocessor value in double precision, is it allowed? Say I want to feed the value 50. Can I write #define t: 5.0D1 ? Or I am allowed to write #define t:50 only.
Actually I want the value in double precision so that the same value can be fed to the source subroutine through WHATSOU(1).
Thanking you in advance.
With regards,
Sujoy

Dear Sujoy,

you can specify double precision numbers. However, Flair will convert them to single precision or even integers in the input file. This is not a problem though. When FLUKA reads the input files, it will treat them as double precision numbers.

Cheers,
David

Thanks for the help.
With regards,
Sujoy