[Neutron therapy in the G.D.R. VII. radiation physical fundamentals of neutron therapy (author's transl)].

In this report the physical and technical bases for the realization of neutron therapy in the GDR are summarized. As neutron source a thick beryllium target which is bombarded by 13.5 MeV deuterons from the Rossendorf cyclotron is used. Dose components are measured by paired homogeneous spherical ionization chambers of polythene and graphite. The arrangement of the whole irradiation plant is resumed.