Dear FLUKA users
Fluka-2021.2.3, a respin of Fluka-2021.2, is now available on the
Fluka web site (www.fluka.org).
This respin implements two features:
- implementation of a workaround when using (dose) conversion coefficients
with pointwise cross sections. Those coefficients already include the
local energy deposition of charged products, which are now explicitly
generated, hence there is potential for double counting. The effect is
minimal in most setup/conversion coefficient combinations, however now
by default charged particle explicitly produced by low energy neutrons
when using pointwise cross sections are ignored when applying the
conversion coefficients. This behaviour can be controlled through the
use of a special flag in the AUXSCORE command (see the ASCII manual
for details). Please note that on the flip side, the use of fully
correlated pointwise cross sections for low energy neutrons allows
to use FLUKA to compute such coefficients, since all charged products,
including recoils are explicitly generated and possibly transported;
- implementation of a DPA-NRT generalized particle scoring. The standard
Fluka DPA scoring, DPA-SCO, like many other advanced treatments makes
use of an efficiency function Xsi like in other "arc" (athermal
recombination corrected) DPA calculations. While this is perfectly sound
and it should give realistic results, comparisons with other codes are
somewhat problematic, a) because they may use different formulations
for Xsi, b) because often they use the so-called NRT
(Norgett-Robinson-Torrens) approach where more or less Xsi=1. In order
to facilitate comparisons with code/results obtained with the NRT
approach, now FLUKA implements also the simplified DPA-NRT estimator.
The developers are also exploring the possibility of offering on
options various Xsi functions besides the presently implemented one.
This respin addresses a few issues, among them:
- a further few rare crashes in rQMD when run at energies above 10 GeV/n
(see the previous announcement about why the threshold for rQMD has
been raised);
- an issue in BME;
- a very rare issue in Peanut;
- an issue with hadron and muon multiple scattering when (relatively)
thin targets are used without setting a corresponding STEPSIZE. Under
some circumstances slightly incorrect angular distributions could
have been produced;
- a possible issue when applying conversion coefficients with groupwise
neutron cross sections. This issue is still under investigation,
however in the new respin this part has been recoded and it is surely
safe;
- a very rare issue in the routine generating fluorescence X-rays;
All users are urged to update to the latest respin.
The FLUKA developers
The following files are available, *PLEASE NOTE fluka2021.2-data.tar.gz
DID NOT CHANGE, HENCE YOU DO NOT NEED TO DOWNLOAD IT IF YOU ALREADY
HAVE THE JULY VERSION*:
Rpm's:
fluka-2021.2-3.x86_64.rpm (Linux, gfortran-11.2, 64 bit)
fluka-2021.2-3.i686.rpm (Linux, g77, 32 and 64 bit)
Tar files:
fluka2021.2-data.tar.gz (Data, required by all other
tar files)
fluka2021.2-linux-gfor64bitAA.tar.gz (Linux, gfortran-11.2, 64 bit)
fluka2021.2-linux-gfor64bit-10.3-AA.tar.gz (Linux, gfortran-10.3, 64 bit)
fluka2021.2-linux-gfor64bit-9.3-AA.tar.gz (Linux, gfortran-9.4, 64 bit)
fluka2021.2-linux-gfor64bit-8.4-AA.tar.gz (Linux, gfortran-8.5, 64 bit)
fluka2021.2-linuxAA.tar.gz (Linux, g77, 32 and 64 bit)
fluka2021.2-mac-gfor64bit-10.2-AA.tar.gz (Mac , gfortran-10.2, 64 bit)
fluka2021.2-mac-gfor64bit-9.3-AA.tar.gz (Mac , gfortran-9.3, 64 bit)
fluka2021.2-mac-gfor64bit-8.4-AA.tar.gz (Mac , gfortran-8.4, 64 bit)
fluka2021.2-linux-gfor64bit-9.4-glibc2.17-AA.tar.gz
(Linux, gfortran-9.4,
glibc-2.17, 64 bit)
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Received on Thu Dec 09 2021 - 13:43:27 CET