低能离子在Mylar膜中的射程研究  

Range of keV ions in Mylar films

作　　者：黄卫东[1] 韩建伟[1] 余增亮[1] 

机构地区：[1]中国科学院等离子体物理研究所,合肥230031

出　　处：《核技术》1999年第1期1-5,共5页Nuclear Techniques

摘　　要：研究了低能离子在Ｍｙｌａｒ膜中的射程，提出低能离子进入生物样品，在其内部通过溅射产生空洞，使高剂量下的后续离子射程大大增加。并提出了低能离子在生物样品中的最大射程与剂量成线性关系，将最大射程与辐射损伤联系起来。The damage of Mylar films by the keV ions was analysed with a transmissionenergy. spectrum of 5.5MeV a particles. The experiment showed that the keV ionscan pass through 18.3μm Mylar films. It was thought that the keV ion can sputterinterstitial atoms in the films and produce cavities, so the follow-up ions impingingupon the films have longer range. The maximum range of the ions is associated withthe radiation damage and a linear correlation between the maximum range of theions and the dose is established.

关 键 词：低能离子 Mylar膜 溅射 射程 生物样品 育种 

分 类 号：Q691[生物学—生物物理学] S335.21[农业科学—作物遗传育种]