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Автор Liu Bing-Chen
Автор Zhu Pin-Pin
Автор Li Zhao-Hui
Автор Ni Guo-Quan
Автор Xu Zhi-Zhan
Дата выпуска 2002-05-01
dc.description Large rare gas clusters Ar<sub>n</sub>, Kr<sub>n</sub> and Xe<sub>n</sub> were produced at room temperature in the process of supersonic adiabatic expansion. The cluster size is examined by a Rayleigh scattering experiment. Power variations of the average cluster size with the gas backing pressure P<sub>0</sub> give size scaling as  ∝P<sub>0</sub><sup>2.0</sup>, resulting in the largest cluster sizes which are estimated in the present work to be about 1.5×10<sup>4</sup>, 2.6×10<sup>4</sup> and 4.0×10<sup>4</sup> atoms (the corresponding diameters of the cluster spheres are about 9, 13 and 17 nm) for Ar, Kr and Xe, respectively. A time resolving Rayleigh scattering experiment was conducted to investigate the time evolution of cluster formation and decay processes. A surprising two-plateau structure of the time evolution characteristic of cluster formation and decay processes of Kr and Xe clusters was revealed as compared with a ``normal'' single structure for the case of Ar gas. In the second plateau, the intensity of the scattered light is enhanced greatly, by even as much as 62 times, over that in the first plateau, indicating a significant increase in cluster size. This finding supports the importance of nuclei in the gas condensation process and may be helpful for further insight into the phenomenon of clustering.
Формат application.pdf
Издатель Institute of Physics Publishing
Название Size Estimation and Time Evolution of Large Size Rare Gas Clusters by Rayleigh Scattering Techniques
Тип paper
DOI 10.1088/0256-307X/19/5/316
Electronic ISSN 1741-3540
Print ISSN 0256-307X
Журнал Chinese Physics Letters
Том 19
Первая страница 659
Последняя страница 662
Аффилиация Liu Bing-Chen; Laboratory for High Intensity Optics, Shanghai Institute of Optics and Fine Mechanics, Chinese Academy of Sciences, Shanghai 210800
Аффилиация Zhu Pin-Pin; Laboratory for High Intensity Optics, Shanghai Institute of Optics and Fine Mechanics, Chinese Academy of Sciences, Shanghai 210800
Аффилиация Li Zhao-Hui; Laboratory for High Intensity Optics, Shanghai Institute of Optics and Fine Mechanics, Chinese Academy of Sciences, Shanghai 210800
Аффилиация Ni Guo-Quan; Laboratory for High Intensity Optics, Shanghai Institute of Optics and Fine Mechanics, Chinese Academy of Sciences, Shanghai 210800
Аффилиация Xu Zhi-Zhan; Laboratory for High Intensity Optics, Shanghai Institute of Optics and Fine Mechanics, Chinese Academy of Sciences, Shanghai 210800
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