Multiple complex source in Fluka

Source Definition
2

Dear ArghyaC,

unfortunately, the SPECSOUR card is ignored if a source routine is linked. So you need to specify each beam parameter in the routine.

You can select a beam like:

random = FLRNDM(XDUMMY)

if (random .lt. beam1_probablility) then
   beam_1_parameters ...
else if (random .lt. beam1_probability + beam2_probability) then
   beam_2_parameters ...
else if (random .lt. beam1_probability + beam2_probability + beam3_probability) then
   beam_3_parameters ...
else
   beam_4_parameters ...
end if

Where

beam1_probability + beam2_probability + beam3_probability + beam4_probability = 1

I hope this made it clear.

Cheers,
David

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