%0 Journal Article
%T An Experimental Observation of Axial Variation of Average Size of Methane Clusters in a Gas Jet<br>
%A HAN Ji-Feng
%A YANG Chao-Wen
%A MIAO Jing-Wei
%A LU Jian-Feng
%A LIU Meng
%A LUO Xiao-Bing
%A SHI Mian-Gong
%A <br>
%J 中国物理快报
%D 2010
%I 
%X Axial variation of average size of methane clusters in a gas jet produced by supersonic expansion of methane through a cylindrical nozzle of 0.8 mm in diameter is observed using a Rayleigh scattering method. The scattered light intensity exhibits a power scaling on the backing pressure ranging from 16 to 50 bar, and the power is strongly Z dependent varying from 8.4 (Z=3 mm) to 5.4 (Z=11 mm), which is much larger than that of the argon cluster. The scattered light intensity versus axial position shows that the position of 5 mm has the maximum signal intensity. The estimation of the average cluster size on axial position Z indicates that the cluster growth process goes forward until the maximum average cluster size is reached at $Z=9$ mm, and the average cluster size will decrease gradually for Z>9 mm.
%K 36
%K 40
%K -c
%K 52
%K 40
%K Mj
%K 52
%K 50
%K Jm<br>
%U http://www.alljournals.cn/get_abstract_url.aspx?pcid=6E709DC38FA1D09A4B578DD0906875B5B44D4D294832BB8E&cid=47EA7CFDDEBB28E0&jid=E27DA92E19FE279A273627875A70D74D&aid=99F15F5272BEACC33844E94E2034C212&yid=140ECF96957D60B2&vid=DB817633AA4F79B9&iid=E158A972A605785F&journal_id=0256-307X&journal_name=中国物理快报&referenced_num=0&reference_num=0