Determination of electron collision cross sections of molecules in bio-cells aiming at the track analysis of ionizing radiations

利用电子群实验测量了生物细胞基本分子的电离系数和漂移速度等电子输运参数，旨在获得电离辐射下生物组织中电子能量沉积的详细信息。本文研究了H_2O、CH_4、C_6H_6、C_6H_5CH_3和C_2H_5OH中电子碰撞过程的性质，并用Monte Carlo方法模拟了生物细胞模型中的电子径迹。

The electron transport parameters, such as the ionization coefficient and the drift velocity, were measured for the elemental molecules of bio-cell by the electron swarm experiment, which was intended to obtain the detailed knowledge of electron energy deposition in the bio-tissue exposed to ionizing radiations. We have investigated the properties of the electron collision processes in H_2O, CH_4, C_6H_6, C_6H_5CH_3 and C_2H_5OH, and demonstrated the electron track simulation in a bio-cell phantom using the Monte Carlo method.