| Publisher Information: |
Uppsala universitet, Institutionen för fysik och astronomi; European Org Nucl Res CERN, Geneva, Switzerland.; European Org Nucl Res CERN, Geneva, Switzerland.;Univ Padua, Dept Phys & Astron, Padua, Italy.; European Org Nucl Res CERN, Geneva, Switzerland.;Univ Manchester, Oxford Rd, Manchester M13 9PL, England.;Cockcroft Inst, Sch Nat Sci, Dept Phys & Astron, Oxford Rd, Manchester M13 9PL, England.; Extreme Light Infrastruct ERIC, ELI Beamlines Facil, Za Radn 835, Dolni Brezany 25241, Czech Republic.; European Org Nucl Res CERN, Geneva, Switzerland.;Ecole Polytech Fed Lausanne EPFL, Inst Phys, Lausanne, Switzerland.; European Org Nucl Res CERN, Geneva, Switzerland.;Extreme Light Infrastruct ERIC, ELI Beamlines Facil, Za Radn 835, Dolni Brezany 25241, Czech Republic.; European Org Nucl Res CERN, Geneva, Switzerland.;Univ Montpellier, Inst Elect & Syst, Montpellier, France.; European Org Nucl Res CERN, Geneva, Switzerland.;Univ Granada, Dept Atom Mol & Nucl Phys, Granada, Spain.; European Org Nucl Res CERN, Geneva, Switzerland.;Tech Univ Munich TUM, Dept Phys, Munich, Germany.; European Org Nucl Res CERN, Geneva, Switzerland.;Horia Hulubei Natl Inst Phys & Nucl Engn, Fac Phys, Bucharest 077125, Romania.;Horia Hulubei Natl Inst Phys & Nucl Engn, Magurele, Romania.; European Commiss, Joint Res Ctr JRC, Geel, Belgium.; European Org Nucl Res CERN, Geneva, Switzerland.;Univ Zurich UZH, Phys Inst, Zurich, Switzerland. |
| Description: |
The FLUKA Monte Carlo code has recently undergone significant enhancements, driven by needs from its user community. Key improvements are discussed, such as a new point-wise treatment for the interactions of low-energy neutrons, the incorporation of a new model for nuclear elastic scattering of protons below 250 MeV, explicit generation of synchrotron radiation photons during charged particle tracking, a revised modeling approach for coherent effects in bent crystals, and the addition of arc-DPA scoring. While improving and extending FLUKA physics performance is essential, it is equally important to ensure the long-term maintainability of the codebase. This paper also outlines the strategy and substantial progress in evolving FLUKA to meet this objective. The FLUKA features are being translated into a new codebase, fulfilling essential criteria such as continuity in the user experience and compatibility with existing inputs, thus laying the foundation for a new FLUKA generation. The codebase makes use of the Geant4 toolkit when appropriate. Additionally, the enhanced collaboration with Geant4 has resulted in the development of an interface, detailed in this paper, that enables access to the FLUKA hadronic models from any Geant4 application. |