Ultraviolet/visible Spectroscopy Studies of PET Irradiated with High Energy Heavy Ions

• 来源期刊: 中国科学院近代物理研究所和兰州重离子研究装置年报：英文版
• 学科: 物理学
• 年，卷（期）: 2001,（1）
• 页码范围: 58-58
• 页数: 1页
• 分类号: O43

摘要

Polyethylene terephthalate(PET)films were irradiated at room temperature with ions of 35 MeV/u~(40)Ar,25 MeV/u~(84)Kr,15.1 MeV/u~(136)Xe and 11.4 MeV/u~(238)U to fluences ranging from 9×10~9 to 5.5×10~(120 ions/cm~2.The radiation-induced chemical changes were investigated by ultraviolet/visible(UV/Vis)spectroscopy.It is found that the semi-transparency films become gradually opaque to the visible light and the absorption edge