Study on Radiation Damage Dynamics of Electrical Insulation Materials

按顺序测试电子绝缘剂的辐射诱导性（RIC），一些蓝宝石样品（Kyocera）在室内温度与DT中子和Co-60伽马射线的辐照。辐射诱导的样本电流对中子和伽马射线通量有很大的影响。And the RIC coefficient of the sapphire was about 1×10イD1-10エD1/\/ m / Gy / s.在中子和伽马射线辐照度之间，RIC协同效应并不存在很大的差异。Moreover，不寻常的瞬态电流很快就会出现辐射后的非常小的漂移电流和辐射期间的偏移特征。为了解释这些现象，并准确地评估辐射陶瓷绝缘体中的电特征学变化，我们需要对电特征学进行进一步的讨论，该讨论基于中毒方程的数字计算的载体传输模型。

In order to examine the radiation induced conductivity (RIC) of electrical insulators, some sapphire samples (Kyocera) were irradiated at room temperature with DT neutrons and Co-60 gamma-rays. The radiation induced current of the sample was proportional to the neutron and gamma-ray flux. And the RIC coefficient of the sapphire was about 1×10ィイD1-10ィエD1/ Ω / m / Gy / s. There was not a large difference in the RIC coefficient between neutron and gamma-ray irradiatiuons. Moreover, unusual transient currents soon after irradiation, very small drift current and the offset characteristics of the sample were measured during irradiation. To explain these phenomena and to accurately evaluate the change in the electrical characteristics of irradiated ceramic insulators, we need further discussions on the electrical characteristics expected from numerical calculations of the Poissons equation based on a model of carrier transport in ceramics.