Dear Arghya Chattaraj,
if I understand correctly, your question
you need a flat angular distribution over 10 cm at 20 cm from source
This means a an angular interval = 2*atan(5/20)=0.48996 radians=489.96
milliradians
You'll have to set the third WHAT in the BEAM card to a positive value
equal to 489.96
Regards
Paola
> Dear Fluka experts,
>
> I want to design one collimated diverging point source in Fluka. The
> source specification is as below,
>
> The distance between point source and medium is 20cm. Beam is
> circular and directed along positive Z-axis. Beam diameter at the
> medium surface is 10 cm.
>
> I have designed this type of source using 'Beam Card' divergence
> option.
>
> What is the correct procedure to calculate beam divergence in Fluka and
> how to design this type of source?
>
> I would like to get any kind of your advice regarding these two.
>
> Thanks in advance.
>
>
> Arghya Chattaraj
>
>
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>
Paola Sala
INFN Milano
tel. Milano +39-0250317374
tel. CERN +41-227679148
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Received on Wed Sep 02 2015 - 20:02:11 CEST