束流发射度和亮度与束流密度分布的关系  

RELATION BETWEEN BEAM EMITTANCE AND BRIGHTNESS WITH DENSITY DISTRIBUTIONS

作　　者：陈银宝[1] 黄志斌[1] 

机构地区：[1]中国原子能科学研究院电物理和激光研究所

出　　处：《原子能科学技术》1999年第2期170-174,共5页Atomic Energy Science and Technology

基　　金：国家自然科学基金;核工业科学基金

摘　　要：束流发射度和束流亮度是表征加速器束流品质的主要指标。理论和实验研究都已发现，它们与束流空间电荷的非均匀分布有密切关系。针对加速器中几种常用的束流密度相空间分布形式，根据束流相空间理论，推得了它们在四维和二维径迹空间中的投影密度，并给出了束流发射度和亮度与束流密度分布的关系式，为加速器束流测量和束流诊断提供理论依据。The beam emittance and brightness are the important figure of merit for the beam in accelerator. According to the theory of beam phase space, the projective density distributions in four dimensional and two dimensional trace space are derived for some space charge distributions often used in accelerator physics. And, the relation between beam emittance and brightness with density distributions is developed too.

关 键 词：束流发射度 束流亮度 束流密度 相空间分布 

分 类 号：TL501.5[核科学技术—核技术及应用]