Dear Saneesh,
Loading more than one particles in the primary stack is most commonly done by creating a loop in the source routine including from above the line: "NPFLKA = NPFLKA + 1" down to and including the line: "CMPATH (NPFLKA) = ZERZER"
In this way you increase the NPFLKA variable that determines the particle number that is loaded and load the information of the different particles in the stack.
That said. It is not quite clear to me what it is that you are trying to achieve. Therefore I am a bit puzzled of your understanding of the consequences of loading more than one particles in the primary stack in FLUKA.
Given your comment:
"For example, if I set three neutron per event, I can have 3000 neutrons for 1000 events."
This doesn't make sense in FLUKA.
If you load 3 neutrons per primary (event as you call it) then you will get results that are given per 3 primary neutrons (e.g. for energy deposition GeV/primary where primary now corresponds to 3 neutrons).
Hope this helps
Kind regards
Lefteris
-----------------------
Eleftherios Skordis
Dep. EN/STI, CERN
CH-1211 GENEVA 23
SWITZERLAND
OFFICE: +41-22-7679541<tel:%2B41-22-7675461>
________________________________
From: owner-fluka-discuss_at_mi.infn.it [owner-fluka-discuss_at_mi.infn.it] on behalf of Saneesh N [saneesh_at_iuac.res.in]
Sent: 06 October 2017 14:04
To: fluka-discuss
Subject: [fluka-discuss]: To change the number of particles per event
Dear Fluka experts,
I am using 'source.f' to set the features of neutron beam such as energy and angular distribution. The source file is working well; and I could verify the energy distribution using USRBDX card. At present the number of primary particle per event is one.
How do I change the number of primary particle, say neutron per event? For example, if I set three neutron per event, I can have 3000 neutrons for 1000 events.The emission need not be sequential; but it should follow the energy (Maxwellian) and angular (isotropic) distribution mentioned in the source file. Is it connected to weight of primary ?
Ultimately I want to set a distribution to number of primary particle per event. Kindly help me to modify the attached source file.
Thanks in advance
Saneesh N
IUAC, New Delhi
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Received on Fri Oct 06 2017 - 17:26:42 CEST