Brenner D J, Bird R P, Zaider M, Goldhagen P, Kliauga P J, Rossi H H
Radiat Res. 1987 Jun;110(3):413-27.
Results for inactivation of hydroxyurea-synchronized V-79 cells by ultrasoft aluminum characteristic X rays of energy 1.5 keV are presented. Limiting RBEs at low doses, relative to 137Cs gamma rays, of 1.8 and 6.4 are, respectively, found for cells at the G1/S and late S stages of the cell cycle. The late-S data are analyzed in the light of previous experiments carried out under similar conditions, also designed to probe the effects of energy deposition in nanometer-sized sites, in which cells were irradiated with correlated pairs of ions. Within the framework of the theory of dual radiation action, the results for ultrasoft X rays and gamma rays can be deduced solely from track simulations and the results of the high-LET molecular ion experiment.
本文给出了能量为1.5keV的极软铝特征X射线对羟基脲同步化V - 79细胞的失活结果。相对于137Csγ射线，在细胞周期的G1/S期和S期后期细胞的低剂量限制相对生物学效应（RBE）分别为1.8和6.4。根据之前在类似条件下进行的实验对S期后期的数据进行了分析，这些实验同样旨在探究纳米尺寸位点的能量沉积效应，在这些实验中细胞用相关离子对进行辐照。在双辐射作用理论框架内，极软X射线和γ射线的结果仅可从径迹模拟和高传能线密度分子离子实验结果推导得出。
