Calibration Experiments for Identification of Space Heavy Ions by CR-39

• 作者: K.Fujitakab M.T.Meic N.Yasudab WeiZengquan XieHengmei
• 来源期刊: 近代物理研究所和兰州重离子加速器实验室年报：英文版
• 学科: 物理学
• 关键词: 实验刻度 空间重离子 放射性 稻 生物效应 基因变异 原子核轨迹探测器
• 年，卷（期）: 2003,（1）
• 页码范围: 77-78
• 页数: 2页
• 分类号: O572.212

摘要

A subject "Study of mechanism and application of space radiation induced mutation breeding on rice" has been established in NSFC, China. In order to verify space heavy particles being main cause (in addition, microgravity, vacuum, magnetic field etc.) of induced biological effects in space and in order to study correlation of various mutation and its serious degree with different particle parameters, measurement and identification of the particles are necessary. CR-39 sheets are a part of a sandwich detecting system. The system consists of rice seeds and CR-39 solid state nuclear track detectors. The seeds hit by space particles could be determined withetched tracks in CR-39. Furthermore, the space heavy particles could be identified with measured parameters of the tracks such as residual range and etch rate.