Plans for the german national neutron therapy centre with a hospital-based 70MEV proton cyclotron at university hospital Essen/Germany

摘要

High-LET hadrons have significant advantages in treatment of special tumour entities. 5 German neutron therapy centres of the seventies are now outdated because of deficiencies in neutron energy (tissue penetration) and technical features. Only the d(14) + Be isocentric neutron therapy facility in Essen is still working. To be comparable with the state-of-the-art in photon therapy Essen is designated to constitute the German National Neutron Neutron Therapy Centre based on a p(70) + Be cyclotron delivering neutrons with depth dose distributions comparable to 10 MV X-rays and having multi-leaf collimator and 360 °C rotation. Plans for this centre are presented which use existing installations as far as possible and add the capability for a proton therapy unit for eye tumours.