二维和三维等离子体加速器的粒子模拟
Particle-In-Cell Modeling of Plasma-Based Accelerators in Two and Three Dimensions
摘要：
在这篇论文中，一个完全面向对象的，完全相对论的，多维的粒子在细胞程序的开发和应用，以回答等离子体加速器研究中的关键问题。模拟增加了对激光等离子体和束-等离子体相互作用过程的理解，允许与实验进行比较，并激励理论模型的发展。模拟支持的想法，通过使用横向传播的激光脉冲在等离子体波的电子注入是可能的。在模拟中发现的注入电子的光束参数与传统方法产生的光束进行了合理的比较，因此激光注入是未来等离子体加速器的一个有趣的概念。在抛物面等离子体通道中的激光尾场驱动器的光学引导的模拟支持的想法，电子可以在远长于通道中的瑞利长度的距离上加速。在非线性井喷制度的等离子体尾场加速的模拟给出了一个详细的图片的高度非线性过程。使用OSIRIS，我们还能够在斯坦福直线加速器中心进行E-157实验的全尺寸模拟。这些模拟帮助了实验人员，他们帮助开发了一个理论模型，该模型能够再现完整PIC模拟的一些重要方面。更新（2015）：这篇论文最初写于2000年。我现在可以在arXiv上使用它，希望它的一些内容可能对OSIRIS代码的用户有用，该代码一直被一些研究小组使用，因为它最初是作为本论文中提出的研究的一部分编写的。
英文摘要：
In this dissertation, a fully object-oriented, fully relativistic, multi-dimensional Particle-In-Cell code was developed and applied to answer key questions in plasma-based accelerator research. The simulations increase the understanding of the processes in laser plasma and beam-plasma interaction, allow for comparison with experiments, and motivate the development of theoretical models. The simulations support the idea that the injection of electrons in a plasma wave by using a transversely propagating laser pulse is possible. The beam parameters of the injected electrons found in the simulations compare reasonably with beams produced by conventional methods and therefore laser injection is an interesting concept for future plasma-based accelerators. Simulations of the optical guiding of a laser wakefield driver in a parabolic plasma channel support the idea that electrons can be accelerated over distances much longer than the Rayleigh length in a channel. Simulations of plasma wakefield acceleration in the nonlinear blowout regime give a detailed picture of of the highly nonlinear processes involved. Using OSIRIS, we have also been able to perform full scale simulations of the E-157 experiment at the Stanford Linear Accelerator Center. These simulations have aided the experimentalists and they have assisted in the development of a theoretical model that is able to reproduce some important aspects of the full PIC simulations. Update (2015): This dissertation was originally written in 2000. I am making it now available on arXiv with the hope that some its content might proof useful to the users of the OSIRIS code which has continued to be utilized by a number of research groups since it was originally written as part of the research presented in this dissertation.
机构、总结、中文摘要均由AI分析而来，可能存在错误，请以论文正文为准。
