Interactions of Swift Heavy Ions with Gases, Liquids, Solids, and Plasmas Electronic excitation, ionization, and charge transfer processes; spectroscopy of electrons, photons, and recoil ions; stopping powers and local energy deposition; conversion of electronic excitation energy into atomic motion; dynamics and relaxation of electronic excitations and atomic displacements. Material Modifications Mechanisms of track formation; ultrafast timescale damage processes; creation of point defects; defect clusters, and nanoparticles; phase transitions and recrystallization; sputtering and mixing; materials response in extreme environments; high-cycle thermo-mechanical stresses and material fatigue. Chemical and Biological Radiation Effects Beam-induced processes in organic and inorganic materials, radiolytic yields, radiobiology and tumor therapy with ion beams. Applications Structuring of materials; ion-track based nanostructures; heavy-ion micro- and nanotechnology; effects of swift heavy ions on electronic devices; geological, astrophysical and other applications based on high-energy accelerators.