Research for Standarization of Evaluation Method of Radiation Effects in Material after Particle Irradiation

材料粒子辐照后辐射效应评价方法标准化研究

• 批准号: 60302093
• 负责人: ISHINO Shiori
• 金额: $ 6.78万
• 依托单位: The University of Tokyo
• 依托单位国家: 日本
• 项目类别: Grant-in-Aid for Co-operative Research (A)
• 财政年份: 1985
• 资助国家: 日本
• 起止时间: 1985 至 1987
• 项目状态: 已结题
• 来源: https://kaken.nii.ac.jp/grant/KAKENHI-PROJECT-60302093/
• 关键词: Radiation Effects; Neutron; Particle Irradiation; Material Evaluation; Standarization; Damage Analysis; Change in Microstructure; 強度変化; 照射設備; 微小試験法; 模擬照射手法; 損傷評価; 核融合炉工学; その場観察; イオン加速器; 電子顕微鏡; その温観察

For three years of this research, research tasks were performed mainly through the activities of five working groups. Those working groups (W.G.) were as follows, (1)Damage Calculation and Evaluation W.G., (2)Machine betting Up W.G., (3) Irradiation Parameter Measurement and Evaluation W.G., (4)Mechanical Property Analysis and Evaluation W.G., (5)Microstructure Analysis and Evaluation W.G.. The major objective of this research was to establish a standard technique or method of irradiation and post-irradiation experimonts which was commonly available for research workers on ridiation effects. In conformity to this objective we employed follwing three task items as practical research aims; (a) Standarization of hardware systems for particle irradiation experiment, (b) Standarization of sample preparation and TEM inspection method of microstructure after particle irradiation, (c) Standarization of damage calculation method and recommendation of computer code. The results of this research are summarized as follows, (i) Two computer codes for damage calculation, E-DEP-1 and TRIM, were inproved on the electronic stopping parameter in order to conform to experimental results, and the new version of those codes were presented. (ii) Hardware specifications in ion-beam measurements such as beam intensity distribution measurement were established. Specimen heating and precise temperature control system for particle irradiation experiment was developed and employed as standard system in irradiation experiment. (iii) Specimen preparation methods for transmission electron microscopy after particle irradiation were standarized with emphasis on surface sectioning and back thinning techniques. Procedure for data acquisition from TEM photo-micrograph was also standarized.

在这项研究的三年中，研究任务主要通过五个工作组的活动来执行。这些工作组（工作组）（1）损伤计算与评估W.G.，（2）机器下注W. G.，(3)辐照参数测量与评价工作组，（4）力学性能分析与评价W.G.，（5）显微组织分析与评价。本研究的主要目的是建立一套标准的辐照和辐照后实验技术或方法，供辐照效应研究工作者通用。根据这一目标，我们将以下三个课题作为实际研究目标：（a）粒子辐照实验硬件系统的标准化，（B）样品制备和粒子辐照后显微组织TEM检测方法的标准化，（c）损伤计算方法的标准化和计算机程序的推荐。（1）对E-DEP-1和TRIM两个损伤计算程序进行了改进，使其与实验结果更加一致，并给出了新的程序版本。(ii)建立了束流强度分布测量等离子束测量中的硬件规范。研制了用于粒子辐照实验的样品加热和精确控温系统，并将其作为辐照实验的标准系统。(iii)粒子辐照后透射电子显微镜的样品制备方法标准化，重点是表面切片和背面减薄技术。规范了透射电镜照片的数据采集程序。