FLUKA (FLUktuierende KAskade) is a fully integrated Monte Carlo simulation package for the interaction and transport of particles and nuclei in matterBattistoni, G., Muraro, S., Sala, P.R., Cerutti, F., Ferrari, A.,
Roesler, S., Fasso`, A., Ranft, J.: The FLUKA code: Description and benchmarking,
Proceedings of the Hadronic Shower Simulation Workshop 2006, Fermilab 6–8 September 2006, M. Albrow, R. Raja eds., AIP Conference Proceeding 896, 31-49, (2007)
. FLUKA has many applications in particle physics, high energy experimental physics and engineering, shielding, detector and telescope design, cosmic ray studies, dosimetry, medical physics, radiobiology. A recent line of development concerns hadron therapy.
FLUKA is available in form of a pre-compiled object library for a number of computer platforms. Source code is also available subject to the conditions specified in the FLUKA license.
FLUKA is developed using the FORTRAN language. Under Linux the g77 compiler is at present necessary to build and run user programs. Since 2011 also a 64 bit version compiled in GNU Fortran is available (for version >4.5).
A graphical user interface to run FLUKA named Flair has been developed using Python (programming language) and is available at the project's web-site.
The software is sponsored and copyrighted by INFN and CERN.
Early versions of the FLUKA hadronic event generator were implemented in other codes (in particular, GEANT3) and should be referenced as such (e.g. GEANT-FLUKA) and not as FLUKA. The hadronic FLUKA generator in GEANT3 is no more developed since 1993 and cannot be compared with the present stand-alone FLUKA.
FLUKA software code is used by Epcard, which is a software program for simulating radiation exposure on airline flights.