For citations:
Pan’shin G.A., Tsallagova Z.S., Izmailov T.R. Radiotherapy of Malignant Tumors: Photons or Protons? Part 1. Bragg Peak and the Brief Characteristics of a Proton Beam. Journal of radiology and nuclear medicine. 2020;101(6):369-372. (In Russ.) https://doi.org/10.20862/0042-4676-2020-101-6-369-372