neck region have been treated with ion beams there in the past. At the existing research facility, as well as in the future with the FAIR (Facility for Antiproton and Ion Research) accelerator facility currently [...] of particle therapy is to destroy tumor cells while sparing surrounding healthy cells. Accelerated ions are better suited for this purpose than the conventionally used X-rays. They unfold their damaging [...] organization of researchers and professionals in the field of radiation therapy with protons, light ions, and heavy charged particles. Its mission is to promote the science, technology, and practical clinical