A study of cell survival in mammalian cells exposed to spatially correlated triads of protons.
Cellular survival results for late-S Chinese hamster V79 cells exposed to triads of protons of variable mean separations are reported. The data are analyzed within the framework of the Theory of Dual Radiation Action [8]. This analysis provides a new estimation of the function gamma (chi) representing the probability of two energy transfers separated by the distance chi to produce a lesion. In agreement with an earlier study [6] involving pairs of deuterons, it is concluded that: a) the process of lesion formation depends strongly on the relative separation of energy deposition events, and b) intratrack and intertrack lesions correspond to substantially different separations of pairwise energy transfers.
D000818:Animals; D002470:Cell Survival / Q000528:radiation effects; D002478:Cells, Cultured / Q000528:radiation effects; D006224:Cricetinae; D003412:Cricetulus; D004735:Energy Transfer; D008433:Mathematics; D011522:Protons; D011836:Radiation Tolerance
D011522:Protons