Exploration of 'Over Kill Effect' of High-LET Ar- and Fe-ions by Evaluating the Fraction of Non-hit Cell and Interphase Death

The reason why RBE for cell killing fell to less than unity (1.0) with very high-LET heavy-ions (40Ar： 1,640 keV/μm;56Fe： 780, 1,200, 2,000 keV/μm) was explored by evaluating the fraction of non-hit cell (time-lapse observation) and cells undergoing interphase death (calculation based on our previou...

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