Application of the thermal spike model to amorphous latent tracks in polycarbonate

作者：Sun YM^*; Zhu ZY; Wang ZG; Liu H; Zhang CH; Jin YF

来源：Acta Physica Sinica, 2005, 54(4): 1707-1710.

• ion irradiation
• polycarbonate
• amorphization
• latent tracks

To describe the damage process of polymer in the energetic heavy-ion tracks by thermal spike model, polycarbonate foil (PC, Makrofol KG) stacks were irradiated with various swift heavy ions (1.158 GeVFe56, 1.755 GeVXe136 and 2.636 GeVU238) in a very wide range of electronic stopping power (from 1.9 to 17.1 keV/nm) and the range of fluence from I X 10(10) to 3 x 10(12) ions/cm(2). The amorphization processes in the irradiated PC were studied by x-ray diffraction. By using the saturated track model (the damaging process only occur in the cylindrical track of area sigma), the mean damage radii of tracks of the amorphization were calculated for Fe, Xe and U ion irradiation. The results obtained by using the thermal spike model, proved to be reasonable.

• 出版日期2005-4
• 单位中国科学院近代物理研究所