Dear FLUKA users,
Fluka2023.3.0, a major iteration of the 4th generation of the FLUKA code, is
now available on the official FLUKA web site (www.fluka.org).
This release represents a big step forward for FLUKA, it contains several
important new features and changes.
In the following a short list of the main new features:
- Photonuclear interactions: both cross sections and models are
completely new above ~100 MeV: this is a major improvement which gets
rid of many limitations and inaccuracies of the the previous
implementation (see the release notes for more details);
- Photon cross section: upgraded from EPDL97 to EPICS2017;
- Photon cross sections and bremsstrahlung cross sections are now extended up
to 1.E21 eV;
- GDR photonuclear cross sections have been updated for a few isotopes,
in particular Lead ones;
- Ortho-Positronium three-gamma annihilation is now included, including
the 3-body matrix-element for the decay;
- The hadronisation model of the high energy generator has been fully
reworked
in order to better account for experimental data which somewhat contradict
widely accepted assumptions about string fragmentation;
- All hadron-nucleus cross sections are new and extended up to 10^20 eV,
and all of them are now consistently calculated with Peanut: they have
been validated up to the highest cosmic ray data;
- Coherent elastic scattering of neutrons between 20 and 40 MeV is now
treated using ad-hoc Legendre expansions;
- Updated galactic cosmic ray spectra, now based on AMS02 data (thanks
to Nicola Mazziotta and Pedro de la Torre Luque) are now available:
they can be activated by new option in SPECSOUR : sdum = GCR-AMS;
- Built-in source routines for neutron spectra from Am-Be, Am-B, 252-Cf
sources are now available (see the BEAM card);
- Internal conversion decays (IC) are now modeled as such and no longer
as (wrongly) gamma emission, including the explicit transport of the
excited nuclei to the decay point;
- The charged particle stopping power in water is now defined in agreement
with the ICRU90 recommendations. In particular, but not only, the water
average ionization potential is now set to I=78 eV;
- The sampling of the example solar flare spectra has been definitively
corrected;
- The default DPMJET is now the newest one, 3.19.3.x, the previous version
is no longer distributed;
- By default intranuclear cascade reinteractions in Dpmjet are now treated
by the FLUKA hadronic models;
- The sets of fluence-to-dose conversion coefficients from ICRP116 are now
available, in particular ambient dose has been added;
- A new interface to Ultra High Energy Cosmic Ray generators is now
available: at present it supports interfacing to EPOS and Sibyll. For
a rationale of this interface, and on how to use it, please refer to
the release notes;
- Dose averaged LET maps are now implemented on-line (generalized particle
DOSAVLET);
- Corresponding neutron group-wise cross sections no longer needed if
point-wise one are requested for a given material;
- The source code has been deeply reorganised. Among others, the old high
energy interaction model (eventv/eventvmvax) has been removed, since it
is no longer used by any of the interaction routines.
At the same time a new bug fixing version of flair, python3 version only#,
is also available on the web site. Those new python3 compatible files
are called flair...2.3-0dpy3..., see www.fluka.org/flair/download.html,
let us know if there are problems.
Due to the amount of changes/additions, and despite the extensive testing
carried out by the FLUKA collaboration members, rare bugs cannot be
excluded. If you experience a crash, or you feel something is incorrect
when running fluka2023.3, please report the issue at fluka-discuss_at_fluka.org.
All users are urged to update to this release. As usual, assistance
will be provided only for the latest release/respin.
The FLUKA developers
# The python2 version of Flair is frozen and no effort will be made to
fix still existing problems. If possible, migrate to the python3 version
Available FLUKA files:
fluka2023.3-data.tar.gz data files required by all versions
(changed wrt previous releases!!)
Linux:
fluka-2023.3-0.i686.rpm rpm 32/64bit g77
fluka-2023.3-0.x86_64.rpm rpm gfortran 13.2,
glibc2.37
fluka2023.3-linuxAA.tar.gz 32/64bit g77
fluka2023.3-linux-gfor64bit-9.4-glibc2.17-AA.tar.gz gfortran 9.4,
glibc2.17
fluka2023.3-linux-gfor64bit-10.3-glibc2.32-AA.tar.gz gfortran 10.3,
glibc2.32
fluka2023.3-linux-gfor64bit-11.4-glibc2.35-AA.tar.gz gfortran 11.4,
glibc2.35
fluka2023.3-linux-gfor64bit-12.3-glibc2.36-AA.tar.gz gfortran 12.3,
glibc2.36
fluka2023.3-linux-gfor64bit-13.2-glibc2.37-AA.tar.gz gfortran 13.2,
glibc2.37
MAC arm64
fluka2023.3-macarm-gfor64bit-12.3-AA.tar.gz gfortran 12.3
MAC intel
fluka2023.3-mac-gfor64bit-11.3-AA.tar.gz gfortran 11.3
fluka2023.3-mac-gfor64bit-12.2-AA.tar.gz gfortran 12.2
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Received on Wed Sep 13 2023 - 18:40:30 CEST