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. Author manuscript; available in PMC: 2016 Oct 1.
Published in final edited form as: Radiat Res. 2015 Sep 28;184(4):404–410. doi: 10.1667/RR14036.1

FIG. 4.

FIG. 4

Panel A: Micronucleus frequency in human peripheral blood lymphocytes exposed ex vivo to neutrons or X rays. The data show mean micronuclei per binucleate cell yields from three healthy volunteers. Error bars show ±SEM. The mixed field yields plotted vs. total dose (neutrons + gamma rays). The solid lines indicate a linear (neutrons) or linear-quadratic (X rays) fit. The dashed line indicates the estimated response to a pure neutron dose. Panel B: RBE values for the mixed field and for the pure neutrons, calculated from panel A (see text for details).