The goal of the work was to find the optimal plan for irradiating a patient according to the homogeneity index. The HI dose homogeneity indices within the targetwere assessed depending on the patient irradiation technology for several nosologies:cervical cancer, lung cancer, prostate and breast cancer. Taking into account theprognostic capabilities of the HI index for relapse-free survival, the optimal irradiationtechnology was selected for each nosology. It has been shown, in particular, that when irradiating cervical cancer, 3D conformal radiation therapy technologies 3DCRT and radiation therapy with intensity modulation IMRT are suitable; for lung cancer, the technology of radiation therapy with intensity modulation in the rotational mode RapidArc has advantages; for prostate cancer, the technology dominates Rapid Arc. In breastcancer, 3D CRT technology dominates.