Figure 2From: In vitro characterization of cells derived from chordoma cell line U-CH1 following treatment with X-rays, heavy ions and chemotherapeutic drugsSurvival fraction after ionizing radiation exposure. Cells were irradiated to X-rays or heavy ions having different LET. Black circle indicates X-rays, white square indicates Carbon LET 13 keV/μm, black triangle indicates Carbon LET 70 keV/μm, and white diamond indicates Iron LET 200 keV/μm. Error bars indicate standard errors of the mean of three independent experiments.Back to article page