[Neutron therapy in the GDR. VIII. The calculation of dose distributions (author's transl)].

The calculation of dose distribution for each patient is a basis for the neutron therapy. A computerprogram was developed for it basing on the matrix-method. We find out several field matrix for each field size. The dose calculation goes by addition of the matrix values on the certain points inside the patient's cross-section. A correction of the dose distribution in consequence of the oblique beam is possible. Dose distributions for several irradiation techniques are discussed.