Spatial Distribution of Biological Effect in a 3.9-Gev Nitrogen Ion Beam

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Science  10 Dec 1971:
Vol. 174, Issue 4014, pp. 1127-1128
DOI: 10.1126/science.174.4014.1127


A beam of nitrogen ions obtained with the Princeton Particle Accelerator was used for the irradiation of Chinese hamster (M3-1) cells in monolayer culture. The 3.9-billion-electron-volt (Gev) beam passed along the monolayer, so that ions were stopped in the culture. A sharply defined zone of extensive cell destruction occurred in the last centimeter of the beam path.