title: [Radiobiologic basis of the quality factor of protons and helium ions].
abstract: Reported data and experimental results of measuring the relative biological effectiveness of protons of different energies and helium ions of 4 GeV/nuclon were analyzed to determine quality factors of the major components of cosmic radiations. It is recommended to use quality factors equal to 1.30-1.45 for 100-730 MeV protons and equal to 1.75 for 9 GeV protons and 4 GeV/nuclon helium ions. It is also suggested to employ them as standards for solving practical problems of radiation safety in space flights.
mesh_terms: D000818:Animals; D002478:Cells, Cultured; D003037:Cobalt Radioisotopes; D006224:Cricetinae; D004285:Dogs; D005720:Gamma Rays; D006371:Helium; D006801:Humans; D007477:Ions; D051379:Mice; D011522:Protons; D012062:Relative Biological Effectiveness
chemical_list: D003037:Cobalt Radioisotopes; D007477:Ions; D011522:Protons; D006371:Helium
vernacular_title: K radiobiologicheskomu obosnovaniiu faktora kachestva protonov i ionov geliia.