The thermal-spike model description of the ion-irradiated polyimide

doi:10.1016/j.nimb.2003.12.051

	The thermal-spike model description of the ion-irradiated polyimide
	Sun, YM; Zhang, CH; Zhu, ZY; Wang, ZG; Jin, YF; Liu, J; Wang, Y
	2004-06
关键词	ion irradiation latent tracks degradation thermal-spike mode
卷号	218
DOI	10.1016/j.nimb.2003.12.051
页码	318-322
英文摘要	To describe the role of electronic energy loss (dE/dX)(e) for chemical modification of polyimide (PI), multi-layer stacks (corresponding to different dE/dX) were irradiated by different swift heavy ions (1.158 GeV Fe-56 and 1.755 GeV Xe-136) under vacuum and at room temperature. Chemical changes of modified PI films were studied by Fourier transform infrared (FTIR) spectroscopy. The chain disruption rate of PI was investigated in the fluence range from 1 x 10(11) to 6 x 10(12) ionS/cm(2) and a wider energy stopping power range (2.2-5.1 keV/nm for Fe-56 ions and 8.6-11.5 keV/ nm for Xe-136 ions). Alkyne formation was observed over the electronic energy loss range of interest. By applying the saturated track model assumption (the damage process only occur in a cylinder of area a), the mean degradation and alkyne formation radii in tracks were induced for Fe and Xe ion irradiation, respectively. The results were validated by the thermal-spike model. The analysis of the irradiated PI films shows that the predictions of the thermal-spike model of Szenes are in qualitative agreement with the curve shape of experimental results. (C) 2003 Elsevier B.V. All rights reserved.
会议录	NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION B-BEAM INTERACTIONS WITH MATERIALS AND ATOMS
会议录出版者	ELSEVIER SCIENCE BV
会议录出版地	PO BOX 211, 1000 AE AMSTERDAM, NETHERLANDS
语种	英语
WOS研究方向	Instruments & Instrumentation ; Nuclear Science & Technology ; Physics
WOS记录号	WOS:000221561000054
内容类型	会议论文
源URL	[http://119.78.100.186/handle/113462/58178]
专题	中国科学院近代物理研究所
通讯作者	Sun, YM
作者单位	Chinese Acad Sci, Inst Modern Phys, Lanzhou 730000, Peoples R China
推荐引用方式 GB/T 7714	Sun, YM,Zhang, CH,Zhu, ZY,et al. The thermal-spike model description of the ion-irradiated polyimide[C]. 见:.