2.1GeV Kr离子在聚碳酸酯膜中引起的辐照效应研究  

Irradiation Effects in Polycarbonate Induced by 2.1GeV Kr Ions

作　　者：田惠贤[1] 金运范[1] 朱智勇[1] 刘昌龙[1] 孙友梅[1] 王志光[1] 刘杰[1] 陈晓曦[1] 王衍斌[1] 侯明东[1] 

机构地区：[1]中国科学院近代物理研究所,兰州730000

出　　处：《高能物理与核物理》2002年第4期435-440,共6页High Energy Physics and Nuclear Physics

基　　金：中国科学院九五基础性研究重点项目 (KJ95 2 -S1 -4 2 3);西部之光项目资助~~

摘　　要：用傅立叶变换红外光 (FTIR)谱仪和紫外 /可见光 (UV/VIS)谱仪研究了2 1GeVKr离子在聚碳酸酯 (PC)膜中产生的效应 .研究结果表明 ,在高能Kr离子辐照下 ,PC膜中发生了断键、断链和键的重组 ,炔基的出现是键的断裂和重组的结果 .这些效应与辐照剂量和电子能损有关 .辐照也使PC膜中发生了从氢化非晶态碳向非晶态碳的转变 ,在UV/VIS中 ,波长为 3 80 ,4 50和 50Polycarbonate films were irradiated with 2.1GeV Kr ions at room temperature in vacuum and in atmosphere,respectively. The ion beam induced effects were studied by means of Fourier transform infrared (FTIR) and ultraviolet visible (UV/VIS) spectroscopies in reflective mode. FTIR measurements indicate that the main effects are bond breaking,chain scissions and bond rearrangement. The creation of alkyne is the result of bond breaking and bond rearrangement. UV/VIS measurements indicate that at wavelengths of 380,450 and 500nm,the normalized absorbances follow approximately a linear relationship with the energy deposited density.

关 键 词：重离子辐照 聚碳酸酯膜 辐照剂量 电子能损 能量沉积密度 辐照效应 

分 类 号：O571.33[理学—粒子物理与原子核物理]