[Cytogenetic dosimetry of gamma rays on human lymphocytes]

The blood samples of thirteen individuals were investigated with the aim to form the dose-effect curves for gamma-rays. The level of spontaneous aberrations was 0.077 for acentric fragments, 0.0017 for bicentric and ring chromosomes and 0.0077 for chromatid breaks. In blood samples irradiated by particular doses of gamma rays Co 60 of 0.25; 0.50; 1; 2; 3 Gy the elevation of all kinds of aberrations was noted. The relation between irradiation dose and the number of bicentric and ring chromosomes has been presented by the linear quadratic equation, showing the level of basal aberration a = 4.6865E-03, linear coefficient = 1.0438E-02 and quadrant coefficient 3 = 8.1050E-03.