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Chemical Modification of Polyimide Irradiated by ^(136)Xe Ions

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IMP & HIRFL Annual Report 2001年第1期 61-62页

作者： sun youmei, zhu zhiyong, jin yunfan, wang zhiguang hou mingdong and zhang qingxiang

Stacked polymide(PI)filns of abou 25μm in thickness were irradiated with 1.755 GeV Xenon ions under vacuum and at room *** chemical changes of modified PI films were studied by Fourier Transfbrm Infrared(FTIR)*** IR ... 详细信息

关键词： Modification irradiated Infrared irradiation stretching bands afunction vacuum fitted corrected

Amorphization of PET under High-energy Heavy Ion Irradiation

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IMP & HIRFL Annual Report 2001年第1期 56-57页

作者： zhu zhiyong, liu Changlong, sun youmei, liu jie, Tang Yuhua, Tian Huixian, jin yunfan wang zhiguang, zhang Chonghong, hou mingdong and Chen Xiaoxi

Commercial available polyethyleneterephthalate(PET)films of about 15μm thickness and 42％crystallinity were irradiated witll 35 MeV/u^(40)Ar,25 MeV/u^(84)Kr,15.14 MeV/u^(136)Xe and 11.4 MeV/u^(238)U ions to fluences ranging from 9×10~9 to 5.5×10^(12) ions/cm^*** radiation-induced changes in molecular and crystalline structurcs were investigated by Fourier-transform infrared(FTIR)spectroscopy and X-ray diffraction(XRD)

关键词： crystallinity crystalline glycol afunction irradiated irradiation absorbance operated polymeric bands

Degradation of PET under High Energy Heavy Ions Irradiations

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IMP & HIRFL Annual Report 2001年第1期 52-54页

作者： zhu zhiyong, liu Changlong, sun youmei, liu jie, Tang Yuhua, Tian Huixian, jin yunfan wang zhiguang, zhang Chonghong, hou mingdong and Chen Xiaoxi

Ion irradiation of polymers can induce irreversible changes in their macroscopic *** excitation,ionization,chains scission and cross-links as well as mass losses are acccpted as the fundamental events that givc rise t... 详细信息

关键词： macroscopic chains irreversible irradiation ionization links excitation bands glycol crystallinity

Photoluminescence from C^+-implanted SiO_2 Films after GeV Xe and U Ion Irradiations

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IMP & HIRFL Annual Report 2001年第1期 60-60页

作者： wang zhiguang, jin yunfan, Xie Erqing, liu jie, zhu zhiyong, hou mingdong Chen Xiaoxi, sun youmei and zhang qingxiang

In our previous work~[1],we have studied photoluminescence(PL)from 5.0×10^(17) C-ions/cm^2 doped SiO_2 films after 335 and 855 MeV^(40)Ar or 1.98 GeV^(84)Kr ion *** was found that PL bands centred at～430nm and～380 nm were formed in the C-doped SiO_2 films and the PL intensity decreases with electronic energy loss S_e *** the present work,we studied the PL properties of C-doped SiO_2 films after 1.75 GeV Xe and 2.71 GeV U ion irradiations.

关键词： bands implanted irradiation dopant violet observable irradiated inclu intense NSFC

快重离子在聚合物潜径迹中引起的损伤效应研究

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核技术 2007年第4期30卷 342-346页

作者：孙友梅刘杰王志光张崇宏侯明东金运范段敬来宋银薛智浩朱智勇中国科学院近代物理研究所兰州730000 中国科学院上海应用物理研究所上海201800

在室温和真空环境下利用不同的快重离子(1.158GeV Fe56、1.755GeV Xe136及2.636GeV U238)对多层堆叠的聚对苯二甲酸乙二醇酯(PET)、聚碳酸脂(PC)和聚酰亚胺(PI)进行了辐照,结合X射线衍射(XRD)、傅立叶红外光谱(FTIR)及紫外可见光谱测量... 详细信息

在室温和真空环境下利用不同的快重离子(1.158GeV Fe56、1.755GeV Xe136及2.636GeV U238)对多层堆叠的聚对苯二甲酸乙二醇酯(PET)、聚碳酸脂(PC)和聚酰亚胺(PI)进行了辐照,结合X射线衍射(XRD)、傅立叶红外光谱(FTIR)及紫外可见光谱测量技术,在较宽的电子能损(1.9-19.0 keV·nm-1)和注量范围(1×1010-6×1012 cm-2)研究了离子在不同聚合物潜径迹中引起的损伤过程,观测到了主要官能团的降解、炔基生成、非晶化及紫外吸收边缘的红移等现象随辐照注量及电子能损的变化趋势。通过对损伤过程的定量分析,应用径迹饱和模型假设,分别给出了Fe、Xe和U离子在不同电子能损下辐照PC时的平均非晶化径迹半径和炔基形成半径,并用热峰模型对实验结果进行了检验。

关键词：快重离子聚合物潜径迹损伤效应

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

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IMP & HIRFL Annual Report 2001年第1期 58-58页

作者： zhu zhiyong, sun youmei, liu Changlong, liu jie, Tang Yuhua, Tiaan Huixian, jin yunfan wang zhiguang, zhang Chonghong, hou mingdong and Chen Xiaoxi

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^*** radiation-induced chemical changes were investigated by ultraviolet/visible(UV/Vis)*** is found that the semi-transparency films become gradually opaque to the visible light and the absorption

关键词： visible transparency terephthalate ultraviolet polymeric irradiation absorbance irradiated fitted amorphous

A High Sensitive Etching Set-up

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近代物理研究所和兰州重离子加速器实验室年报：英文版 2002年第1期 112-112页

作者： Duan jinglai, zhu zhiyong, sun youmei, wang zhiguang, jin yunfan, hou mingdong liu jie, zhang Chonghong, Zhao Zhiming, Song Yin and wang Ying

The interaction of heavy ions with solids produces a latent track of primary damage along ion path. In order to study some problems about the track cores, we must reveal and enlarge the cores by chemical etching. To acquire a very small pore, a high sensitive etching set-up is *** lab devised a high sensitive etching system in 2002. Fig.1 shows the diagram of the experimental setup. The set-up is composed of four parts: temperature controller, etching trough, electricity supplier

关键词：高灵敏度蚀剂装置化学蚀刻放大技术实验设计重离子温度控制器

红外光吸收研究35MeV/u Ar离子辐照半晶质聚酯膜引起的效应

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高能物理与核物理 2000年第4期24卷 352-358页

作者：刘昌龙金运范朱智勇孙友梅侯明东王志光王衍斌张崇宏陈晓曦刘杰李保权中国科学院近代物理研究所兰州730000

３５ＭｅＶ／ｕ　Ａｒ离子在室温下辐照了多层堆叠的半晶质聚酯膜，采用傅立叶转换的红外光吸收技术分析和研究了由辐照引起的化学键断裂及其对离子剂量、离子在样品中的平均电子能量损失和吸收剂量的依赖性．结果表明，辐照导致聚酯膜... 详细信息

３５ＭｅＶ／ｕ　Ａｒ离子在室温下辐照了多层堆叠的半晶质聚酯膜，采用傅立叶转换的红外光吸收技术分析和研究了由辐照引起的化学键断裂及其对离子剂量、离子在样品中的平均电子能量损失和吸收剂量的依赖性．结果表明，辐照导致聚酯膜中发生了明显的化学键断裂，断键过程主要发生在反式构型的乙二醇残留物和苯环的对位上，苯环的基本结构在辐照中变化较小．断键不仅强烈地依赖于离子的照射剂量，而且还跟样品中电子能量沉积密切相关，明显的断键发生在４．０ＭＧｙ以上的吸收剂量．

关键词：高能氩离子辐照聚酯膜红外光吸收断键

Alkyne End Group Production in Polymeric Materials Induced by Swift Heavy Ion Irradiations

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IMP & HIRFL Annual Report 2001年第1期 55-55页

作者： zhu zhiyong, sun Yournei, liu Changlong, wang Yanbin, Tang Yuhua, Tian Huixian, liu jie . jin yunfan, wang zhiguang, zhang Chonghong, hou mingdong and Chen Xiaoxi

Swift heavy ions in matter lose energy mainly through electronic *** the energy deposition is centered in a very small region with a very high energy density,new effects such as production of alkyne end group can be *** this work,PET,PS,PC and PI films are irradiated with Ar,Kr,Xe and U ions and the relationship of the alkyne end group production with electronic energy loss is studied by Fourier transformed infrared infrared(FTLR)spectra measurements.

关键词： Swift transformed centered afunction irradiated normalized stopping polymeric bands irradiation