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The ovaries of Kun-Ming strain mice (3 weeks) were irradiated with different doses of I2C6+ ion or 60Coγ-ray. Chromosomal aberrations were analyzed in metaphaseⅡoocytes at 7 weeks after irradiation. The relative biological effectiveness (RBE) of 12C6+ion was calculated with respect to 60Coγ-ray for the induction of chromosomal aberrations. The 12C6+ ion, and 60Coγ-ray dose-response relationships for chromo-
The ovaries of Kun-Ming strain mice (3 weeks) were irradiated with different doses of I2C6 + ion or 60Coγ-ray. Chromosomal aberrations were analyzed in metaphase II oocytes at 7 weeks after irradiation. The relative biological effectiveness (RBE) of 12C6 + ion was calculated with respect to 60Coγ-ray for the induction of chromosomal aberrations. The 12C6 + ion, and 60Coγ-ray dose-response relationships for chromo-