----------------------- DPMJET is a high energy hadron-hadron, hadron-nucleus and nucleus-nucleus interaction model developed by J. Ranft, S. Roesler and R. Engel, capable to describe interactions from several GeV per nucleon up to the highest cosmic ray energies. There are strong ties between the FLUKA and the DPMJET teams (with J. Ranft being author of both) and the collaboration is going on since the mid 90's. An interface with DPMJET-2.5 was developed by Toni Empl (Houston), Ferrari and Ranft [Emp02]. The interface allows to treat arbitrary ion interactions in FLUKA at whichever energy in excess of 5 GeV/n. The excited projectile and target residual leftovers are passed back to the FLUKA evaporation/fission/break up routines for the final deexcitation and "low" (in the excited residual rest frame) energy particle production. As part of the interface work a new fast multiion/multienergy initialisation scheme has been developed for DPMJET and a new cross section algorithm has been worked out for runtime calculations based on a fine mesh of DPMJET runs with various ions and energies. An interface with the DPMJET-3 [Roe01] has been developed in collaboration with Stefan Roesler (CERN) and is now available.
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