%0 Journal Article
%T The carbon impurity particle transport in ohmic discharges on the HT-7 tokamak<br>The carbon impurity ohmic discharges on particle transport in the HT-7 tokamak
%A Zhou Qian
%A Wan Bao-Nian
%A Wu Zhen-Wei
%A Huang Juan
%A <br>周倩
%A 万宝年
%A 吴振伟
%A 黄娟
%J 中国物理 B
%D 2005
%I 
%X The line-integrated optical measurement of impurity radiation profiles for the study of light impurity transport is performed in the HT-7 tokamak. The carbon impurity line emissivity is obtained by Abel inversion. The radial transport behaviours of carbon impurities at different central line averaged electron densities \overline {n_\e} are investigated in ohmic discharges. The diffusion coefficient D_{k}(r), the convection velocity W_{k}(r) and the total flux of the impurity ions \Ga _{k} decrease with the increase of \overline {n_\e} , which shows a reduction in the impurity particle transport at higher electron densities.
%K tokamak
%K impurity particle transport
%K diffusion coefficient
%K convection velocity<br>托卡马克装置
%K 掺杂粒子传输
%K 扩散系数
%K 速度对流
%K 等离子物理
%U http://www.alljournals.cn/get_abstract_url.aspx?pcid=6E709DC38FA1D09A4B578DD0906875B5B44D4D294832BB8E&cid=47EA7CFDDEBB28E0&jid=CD8D6A6897B9334F09D8D1648C376FB4&aid=2E3045A4D1F830F2118AFAFB9711A3DC&yid=2DD7160C83D0ACED&vid=F3583C8E78166B9E&iid=59906B3B2830C2C5&sid=53E7BF7A6F821EB6&eid=3B77DB8273ECB698&journal_id=1009-1963&journal_name=中国物理&referenced_num=0&reference_num=19