title: [Relative biological effectiveness of tritium oxide by the criterion of death of the germ cells in mice].
abstract: It was shown that low-level beta-radiation of tritium is much more effective than gamma-radiation of 137Cs with respect to reduction of the mouse testis weight. The RBE coefficient increases from 1.8 at a dose of 1 Gy to 2.2-2.3 at 0.1 Gy. On the basis of the data obtained by the authors and those reported in the literature a quality factor is proposed for tritium: QF = 2. Using THO and Na36Cl labels a mean water content of the testis cells, necessary for the estimation of a tritium-radiation dose absorbed, has been determined: gamma ct = 0.70 +/- 0.02 ml/g.
mesh_terms: D000818:Animals; D002470:Cell Survival / Q000528:radiation effects; D005720:Gamma Rays; D008297:Male; D051379:Mice; D009929:Organ Size / Q000528:radiation effects; D012062:Relative Biological Effectiveness; D013094:Spermatozoa / Q000528:radiation effects*; D013737:Testis / Q000528:radiation effects; D013997:Time Factors; D014316:Tritium / Q000494:pharmacology*; D014867:Water / Q000494:pharmacology*; D014916:Whole-Body Irradiation
chemical_list: D014867:Water; D014316:Tritium; C033961:tritium oxide
vernacular_title: Otnositel'naia biologicheskaia éffektivnost' okisi tritiia po kriteriiu gibeli generativnykh kletok myshi.