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 50
Polycarbonate 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.
出处
《高能物理与核物理》
EI
CSCD
北大核心
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~~
