[fluka-discuss]: RE: Neutron source. 40 MeV deuterons on Carbon

From: Anton Lechner <Anton.Lechner_at_cern.ch>
Date: Tue, 26 Nov 2013 19:52:05 +0000

Dear Antonio,

At the energy you are interested in, deuteron-nucleus reactions are not (yet) available in FLUKA. For higher energies, deuteron-nucleus interactions can be simulated by means of RQMD, which needs to be explicitly link ($FLUPRO/flutil/ldpmqmd) when generating the executable.

Cheers, Anton


________________________________________
From: owner-fluka-discuss_at_mi.infn.it [owner-fluka-discuss_at_mi.infn.it] on behalf of Antonio Fernandez Caballero [AXF015_at_bham.ac.uk]
Sent: 26 November 2013 16:00
To: fluka-discuss_at_fluka.org
Subject: [fluka-discuss]: Neutron source. 40 MeV deuterons on Carbon

Hi

My name is Antonio and I'm trying to simulate a neutron source with FLUKA (fluka2011.2b-linux-gfor64bitAA) via flair(version 1.2-3). However I don't get neutrons, and I don't know why. I am new to FLUKA, downloaded 2 days ago.
I guess that I'm possibly missing some physics cards to produce the neutrons, and for this reason I added "PART-THR" for the cut off energy of the neutrons and IONTRANS for the transport of deuterons. The result in any case
 is very low neutron fluence in the target (USRBIN) where the neutrons are supposed to be produced. I haven't been lucky trying to find literature relevant to this calculation and for that reason I thought that asking your opinion was my best choice.

Thanks for your time,
King regards,

Antonio

 TITLE
Lhersonneau experiment of a 40 MeV deuteron beam on a Carbon target
IONTRANS -2.
* Set the defaults for precision simulations
DEFAULTS NEW-DEFA
* The deuteron beam's characteristics
BEAM -0.04 0.0 0.0 0.085 -1.0DEUTERON
PART-THR -0.001 NEUTRON 0.0
* Define the beam position
BEAMPOS 0.0 0.0 -0.77 0.0 0.0
GEOBEGIN 0.0 COMBNAME
    0 0
* Black body
SPH blkbody 0.0 0.0 0.0 100.0
* Void sphere
SPH void 0.0 0.0 0.0 40.0
* Carbon target
RCC target 0.0 0.0 -0.75 0.0 0.0 1.5 0.75
* Foil to count the neutron yield
RPP Foil -1.25 1.2500000000004 -1.25 1.25 23.7 23.8
END
* Black hole
BLKBODY 5 +blkbody -void
* Void around
VOID 5 +void -target-Foil
* Target
TARGET 5 +target
* Foil
FOIL 5 +Foil
END
GEOEND
* ..+....1....+....2....+....3....+....4....+....5....+....6....+....7..
ASSIGNMA BLCKHOLE BLKBODY
ASSIGNMA VACUUM VOID
ASSIGNMA CARBON TARGET
ASSIGNMA VACUUM FOIL
* Set the random number seed
RANDOMIZ 1.
USRBIN 11. NEUTRON -67. 0.75 0.75
USRBIN -0.75 10. 10. 10. &
* Set the number of primary histories to be simulated in the run
START 10000000. 0.0
LOW-MAT
STOP
Received on Tue Nov 26 2013 - 22:38:59 CET