["Massfunktionen" as limit conditions of an optimization scheme for the telecobalt therapy (author's transl)].

The basic ideas of the "Score-Funktionen-Modell" of Hope and his collaborators are used for the establishment of the first stage of an optimization scheme for the telecobalt therapy. The new "Massfunktionen" for the telecobalt therapy are limit conditions for the criterion of the optimum, i.e. the dose distribution in a body section. The "Massfunktionen" are an analytic registration of parameters for the dose distribution such as dose homogeneity in the focal region and sparing of the subcutaneous tissues, the radiosensitive organs and the sound surroundings of the tumor. The functions are derived from the dose conditions in the irradiated body section. At the actual stage of development of the optimization scheme, these functions allow to decide whether an irradiation scheme is acceptable or not.