Investigation of the time characteristics of a pulsed flow of large rare gas clusters
Li Shao-Hui (李邵辉)ab, Liu Bing-Chen (刘丙辰)a, Ni Guo-Quan (倪国权)a, Xu Zhi-Zhan(徐至展)a
a Laboratory for High Intensity Optics, Shanghai Institute of Optics and Fine Mechanics, Chinese Academy of Sciences, Shanghai 201800, China; b Department of Physics, Shantou University, Shantou 515063, China
Abstract The time characteristics of a flow of large rare gas atomic clusters formed by supersonic expansion of a gas into vacuum through conic nozzles are studied using the time resolving Rayleigh scattering method. The results show a two-region structure of the time resolved spectrum of the scattered light from the clusters. The average cluster size in the second region is much, even orders of magnitude, larger than that in the first one. Three designs of the valve-nozzle assembly have been used to investigate the origin of this finding. Finally, the potential application of the observation is proposed.
Received: 14 January 2003
Revised: 17 February 2003
Accepted manuscript online:
Fund: Project supported by the National Natural Science Foundation of China (Grant No 29890210), the National Basic Research Special Foundation (Grant No G1999075200), Shanghai Foundation of Science & Technology (Grant No 0159nm022), and the Department of Physi
Cite this article:
Li Shao-Hui (李邵辉), Liu Bing-Chen (刘丙辰), Ni Guo-Quan (倪国权), Xu Zhi-Zhan (徐至展) Investigation of the time characteristics of a pulsed flow of large rare gas clusters 2003 Chinese Physics 12 856
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