低能重离子注入花生干种子深度-浓度分布的方向效应研究  

A study of directional effect of depth-concentration distribution for implanted heavyions with low energies in dry peanut seeds

作　　者：谢竞祎[1] 周宏余[1] 王平[1] 丁晓纪[1] 刘志国[1] 宋海[1] 陆挺[1] 朱光华[1] 

机构地区：[1]北京师范大学射线束技术与材料改性教育部重点实验室,北京师范大学低能核物理研究所,北京师范大学材料科学与工程系,北京100875

出　　处：《物理学报》2003年第10期2530-2533,共4页Acta Physica Sinica

基　　金：国家自然科学基金重大项目 (批准号:19890 30 3)资助的课题~~

摘　　要：用双光子激光扫描显微镜技术观测 2 0 0keVV+离子从不同方向注入花生干种子的深度 浓度分布 ,发现沿纵向和横向注入的离子在样品中的深度 浓度分布有显著差别 ,即分布具有方向效应 .The depth-concentration distribution in dry peanut seeds for implanted V+ at 200keV was measured by two-photon laser scanning microscope. It was observed that when the ions were implanted into peanut samples along longitudinal direction and transverse direction, the corresponding depth-concentration distribution curves possess different shapes and characteristics. This is called directional effect. The origin of this directional effect was studied primarily.

关 键 词：低能重离子注入 深度-浓度分布 方向效应 花生干种子 植物种子 遗传诱变 

分 类 号：Q947[生物学—植物学]