Yes, you may produce a directional beam (of adjustable size, or pencil-wise if you wish). Use the BEAM card (
http://www.fluka.org/content/manuals/online/BEAM.html) to describe the energy, divergence and size and BEAMAXES (
http://www.fluka.org/content/manuals/online/BEAMAXES.html) for its direction (if not along the default z axis). For a pencil beam you may also use BEAMPOS (
http://www.fluka.org/content/manuals/online/BEAMPOS.html) to define its direction. The latter card is also necessary to define the starting coordinates of the beam if other than {0,0,0}.
-M
FLUKA: BEAMPOSit<
http://www.fluka.org/content/manuals/online/BEAMPOS.html>
1) To take full advantage of some tracking optimisation features, it is often a good idea to create a buffer vacuum region containing the whole geometry, which must itself be contained within the external (mandatory) blackhole region.
www.fluka.org
FLUKA: BEAMAXES<
http://www.fluka.org/content/manuals/online/BEAMAXES.html>
1) Option BEAM describes a simple pencil beam, or also a beam simply distributed in space (angular divergence and transversal profile), provided the beam axis coincides with the z-axis of the input geometry. Also a possible beam polarisation described by option POLARIZAti refers to a beam with its axis coinciding with the geometry z-axis.
www.fluka.org
FLUKA: BEAM<
http://www.fluka.org/content/manuals/online/BEAM.html>
> 1). If RADDECAY is not requested, nothing will occur, and no particle will be transported. Commands IRRPROFI and DCYTIMES are not allowed: decay secondaries are sampled over the whole decay time from zero to infinity, and all scoring will refer to the time integral of isotope activity (dose, fluence, current, yield or residual nuclei PER DECAY, not the corresponding rates at particular decay ...
www.fluka.org
________________________________
From: owner-fluka-discuss_at_mi.infn.it <owner-fluka-discuss_at_mi.infn.it> on behalf of Jyoti <jyoti.grg_at_britatom.gov.in>
Sent: Monday, February 17, 2020 8:37 PM
To: fluka-discuss <fluka-discuss_at_fluka.org>
Subject: [fluka-discuss]: Collimated Beam
Dear FLUKA Users,
I want to perform simulation in X-Z direction.
How to produce a directional / collimated beam in FLUKA?
With Regards,
Jyoti
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Received on Tue Feb 18 2020 - 09:37:17 CET