| 强流柱对称相对论电子束的势能与发射度 |
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| 引用本文： | 代志勇,江孝国,陈思富,谢宇彤.强流柱对称相对论电子束的势能与发射度[J].强激光与粒子束,2010,22(4). |
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| 作者姓名： | 代志勇 江孝国 陈思富 谢宇彤 |
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| 作者单位： | 中国工程物理研究院 流体物理研究所， 四川 绵阳 621900 |
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| 摘 要： | 推导了柱对称相对论电子束在漂移管内的空间电荷势及相互作用势能,分析了势能在束流传输过程中的变化规律,并与束流均方根发射度的变化方程比较。指出一部分势能随束流传输过程中包络振荡而呈现出可逆的变化;而另一部分势能则在束流传输系统及束流本身非线性力的作用下,随着电荷密度分布变化而转为电荷横向热运动能量,从而导致束流归一化发射度的增长,这种转化是一个不可逆的过程。
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| 关 键 词： | 柱对称电子束 相互作用势能 均方根发射度 电荷密度分布 |
| 收稿时间： | 1900-01-01; |
Potential energy and emittance of cylindrically symmetric intense electron beams |
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| DaiZhiyong,JingXiaoguo,ChenSifu,XieYutong.Potential energy and emittance of cylindrically symmetric intense electron beams[J].High Power Laser and Particle Beams,2010,22(4). |
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| Authors: | DaiZhiyong JingXiaoguo ChenSifu XieYutong |
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| Institution: | Institute of Fluid Physics, CAEP, P. O. Box 919-106, Mianyang 621900, China |
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| Abstract: | The potential energy expression of cylindrically symmetric intense electron beams is derived and the differential equation of RMS emittance is presented in this paper.The decrease of beam potential energy which is leaded by change of charged particle density distribution during the transportation brings the growth of RMS emittance.The change of the charged particle density distribution is always toward to decreasing the potential energy,such as the growth of the emittance.Furthermore,based on the basic defi... |
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| Keywords: | cylindrically symmetric electron beam potential energy RMS emittance charged particle density distribution |
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