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The effects of ion implantation on ployacetylene films PA have been studied with Ar~+, Fe~+, C1~+, I~+, Na~+ and K~+ ions in the energy range of 15—30 keV. The changes of PA films in the electrical conductivity, due to chemical doping and ion implantation in relation to their structure and depth profiles of impurities, were measured through infrared (ATR/FTIK), Rutherford backscattering spectrometry (RBS) and the four probe technique. In all cases, ion implantation of active ions exhibits the same effects as chemical doping. The formation of p-n junction is observed at the interface of implanted region and chemical doped PA substrate. The mechanism of interaction process between ion beam and polymer is also discussed. 相似文献
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本文介绍中科院上海原子核所工业CT(IndustrialComputerizedTomography)的研究情况.工业CT借助于现代辐射成像技术,以建立高清晰度的物体断面图象.它在工业设备或产品的无损检测和质量评价中得到日益广泛的应用,显示出远胜于常规检测手段的优越特性,并正在步入工业生产程控领域. The research activities of industrial computerized tomography (ICT) at SINR is described. Because of its superior qualities in spatial and density resolutions, ICT has been and will be widely used in non-destructive test, quality evaluation and process control. 相似文献
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本文扼要地介绍了上海原子核所的核分析手段以及它在材料科学中的应用,它已在表面碰撞反应动力学,离子注入缺陷工程,纳米材料和纳米加工,以及团簇和富勒(Fullerenes)等当今几个前沿材料科学研究领域中取得了较为显著的进展. In this paper the nuclear analysis techniques in the Shanghai Institute of Nuclear Research and their applications in material science have been briefly introduced. Progresses have been made during recent years in studies, in particular, on the surface collision dynamics, ion implantation defects, nanometer-scale materials and nanometer-processing,cluster and fullerene. 相似文献
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编者按:这是一篇好文章,尤其在宣传科学技术是第一生产力的活跃时期,它具有很强的现实意义,说明基础研究可为国民经济创造巨大财富.我们借此栏目向科研工作者及在诸如钢铁工业.电力工业、石化工业、兵器工业,海空军军械工业、机械制造业等生产制造领域的广大工程技术人员推荐这一篇有启发、有借鉴、有开拓和有吸引力的文章. 相似文献
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