Dear Paul,
for neutrinos, you have to distinguish the two cases.
1) Your primary beam particle is NOT a neutrino. In this case, neutrinos
are produced in the simulation, but not transported. To have them
transported - add the card:
* Enable all neutrinos tracking - no neutrino - material interactions in
FLUKA (this is only a comment line)
DISCARD -ANEUTRIE -ANEUTRIM -ANEUTRIT -NEUTRIE -NEUTRIM -NEUTRIT
2) Your primary beam particle is a neutrino. In this case, the neutrino
is forced to have, in each event, an interaction happening in the point
(or area) defined by BEAMPOS card. Note that, also in this case, there
may be secondary neutrinos (such as in neutral currents): for them, what
said before applies.
However, from your question it seems you want to use a neutrino source,
and score the neutrinos. Is this correct? Are you trying to score the
*primary*neutrinos? I don't think this can be done - however, primary
neutrinos, in real world, would just propagate in a straight line.
Instead, if you are interested in scoring the secondary neutrinos from
the interaction (neutral current), follow point 1)
Bests,
Andrea
On 7/2/19 8:03 PM, Paul Miyagawa wrote:
> Hello,
>
> I'm trying to understand what happens with a neutrino source using a
> toy (spherical) geometry. I've tried both a beam and an isotropic
> source. From what I've tested, the neutrinos don't seem to be
> transported (no entries with USRBDX scoring). Reading in the online
> manual + past posts, it sounds like the primary neutrinos interact at
> the point of production ("Neutrino interactions are forced to occur in
> the point (or area) defined in the BEAMPOS card."), and the secondary
> neutrinos don't interact at all and therefore are not propagated? Is
> there an option to enable neutrino transport and therefore allow
> scoring of them? Thanks for any assistance.
>
> Cheers,
> Paul
__________________________________________________________________________
You can manage unsubscription from this mailing list at
https://www.fluka.org/fluka.php?id=acc_info
Received on Wed Jul 03 2019 - 10:47:04 CEST