摘要
直线加速器中束团的非线性空间电荷效应是引起发射度增长的重要原因之一．根据计算在屏蔽筒中非均匀分布京团的空间电荷效应的普遍方法，推导了直线加速器圆波导中几种非均匀分布束团的非线性场能公式，并给出数值计算结果．讨论了由非线性所引起发射度增长．
The nonlinear space charge effect of bunched beam in linac is one of theimportant reasons that induce the emittance growth. The general formulas forcalculating the potential of space charge with nonuniform distribuhon in surmundingstructure are presented. For a bunched beam with different distribuhon in waveguideof linac, the expresses of the nonlinear field energy of a cylinder model of spacecharge are derived, and the numerical results of the nonlinear field energy for differentdensity distributions are given. The emittance growthes caused by these nonuniformitiesare discussed.
出处
《高能物理与核物理》
CSCD
北大核心
1999年第12期1231-1242,共12页
High Energy Physics and Nuclear Physics
基金
国家自然科学基金
核工业科学基金
