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[Cytogenetic effect of the pulse reactor BARS-6 continuous or one-time irradiation with ultrahigh dose rate on human

E V Koriakina, A V Sevan'kaev, V I Potetnia

Radiatsionnaia Biologiia, Radioecologiia

|October 8, 2005

Abstract:

The results of the comparative study of radiation effects of the pulse reactor BARS-6 either in single pulse or continuos irradiation mode on human G0 lymphocytes are presented. Under identical doses the cytogenetic efficiency was observed to be higher for continuous irradiation (1 hour) than for single pulse irradiation with ultrahigh dose rate (0.5-3) x 106 Gy/minutes (pulse duration 65 x 10(-6) s). The difference averaged about 37% on total aberration frequency and 27% on the sum of dicentrics and centric rings. The influence of the dose rate and of the mixed gamma-neutron irradiation on the obtained results is discussed.

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