Figure 4

Survival fraction of U-CH1-N cells after high LET heavy-ions. A) X-rays and carbon-ions (LET 13, 30, 50, and 70 keV/μm), B) X-rays and neon-ions (LET 13, 70, and 120 keV/μm), C) X-rays and silicon-ions (LET 55, 150, and 250 keV/μm), and D) X-rays, argon-ions (LET 100 keV/μm), and iron-ions (LET 200 keV/μm). Error bars indicate standard error of the means from three or four independent experiments.