%0 Journal Article
%T Further theoretical study on laminar-flow equilibria in magnetically focused relativistic electron beams<br>层流平衡相对论电子束束流特性的数值计算
%A Liu Jing
%A Shu Ting
%A Li Zhi-Qiang
%A <br>刘静
%A 舒挺
%A 李志强
%J 物理学报
%D 2010
%I 
%X A numerical solution for the self-consistent differential equations describing the laminar-flow equilibrium in magnetically focused relativistic electron beams is given and proved to be available by comparison with analytical results of solid electron beam in the case of p_θ=0(magnetically shielded sources).With the numerical method,the space-charge limited current and the externally applied magnetic field of both solid and annular electron beam in three cases of p_θ=0,P_θ=const and p_θ∝r~2(magnetically immerged sources)are presented and compared.It is shown that the conditions at the source with respect to the canonical angular momentum P_θ have little effect on the space-charge limited current and the xternally applied magnetic field,but more intense annular electron beam generated by the source with P_θ=const.can be transported in the same drift tube under lower guided magnetic field than solid ones.
%K relativistic electron beams
%K laminar-flow equilibrium
%K space-charge limited current
%K guided magnetic field<br>相对论电子束，
%K 层流平衡，
%K 空间极限电流，
%K 轴向导引磁场
%U http://www.alljournals.cn/get_abstract_url.aspx?pcid=6E709DC38FA1D09A4B578DD0906875B5B44D4D294832BB8E&cid=47EA7CFDDEBB28E0&jid=29DF2CB55EF687E7EFA80DFD4B978260&aid=C5CF39F83A93AC60EF9D96F1EEF48965&yid=140ECF96957D60B2&vid=6AC2A205FBB0EF23&iid=38B194292C032A66&sid=7470465163F1C176&eid=8080149E52358D01&journal_id=1000-3290&journal_name=物理学报&referenced_num=0&reference_num=16