摘要
强流束中的束晕形成是研制下一代高功率加速器必须解决的关键问题之一。为此研究了周期性聚焦结构中强流束的非线性共振、参数共振与束晕形成的关系 ,给出强流束中非线性共振、参数共振的共振范围表达式及其随束流空间电荷效应变化的数值结果和图表曲线 ,提出由非线性共振而激发的束晕形成的空间电荷效应极限 ,为下一代高功率加速器的物理设计提供理论依据。
The relationship between the nonlinear resonance and halo formation induced by space charge has been studied by means of the particle core model. Using the Poincare surface of section technique, an analysis of a particle motion in the phase plane has been presented. The range of the nonlinear resonance versus space charge effects, and the space charge thresholds of halo formation excited by nonlinear resonance are derived. Some numerical results are also given.
出处
《核科学与工程》
CSCD
北大核心
2000年第1期70-77,共8页
Nuclear Science and Engineering
基金
国家自然科学基金
核工业基金! (19775 0 6 9
H7196D0 12 1)
关键词
周期性聚焦结构
强流束
束晕形成
加速器
periodic focusing channel
space charge dominated beam
nonlinear resonance
parametric resonance
halo formation
