AbstractRecirculating induction accelerators (recirculators) have been investigated as possible drivers for inertial fusion energy production because of their potential cost advantage over linear induction accelerators. Point designs were obtained by Barnard et al. (UCRL-LR-108095, 1991; Phys. Fluids B Plasma Phys. 5 (1993), 2698) and many of the critical physics and technology issues that would need to be addressed were detailed. A collaboration (Friedman et al., 32–33 (1996) 235) involving Lawrence Livermore National Laboratory and Lawrence Berkeley National Laboratory researchers is now developing a small prototype recirculator in order to demonstrate an understanding of nearly all the critical beam dynamics issues that have been raised by Barnard et al. and subsequently.We review the design equations for recirculators (which have been incorporated into a MATHEMATICA-based design code) and demonstrate how, by keeping crucial dimensionless quantities constant, a small prototype recirculator was designed which will simulate the essential beam physics of a driver. We further show how important physical quantities such as the sensitivity to errors of optical elements (in both field strength and placement), insertion-extraction, vacuum requirements and emittance growth scale from small prototype to driver-size accelerator.
再循环感应加速器（再循环器）已被研究作为惯性聚变能源产生的潜在驱动器，因其相较于线性感应加速器具有潜在的成本优势。点设计由Barnard等人获得（UCRL-LR-108095, 1991；Phys. Fluids B Plasma Phys. 5 (1993), 2698），并详细阐述了需要解决的许多关键物理和技术问题。由劳伦斯利弗莫尔国家实验室和劳伦斯伯克利国家实验室的研究人员组成的合作团队（Friedman等人，32–33 (1996) 235）目前正在开发一个小型再循环器样机，以展示对Barnard等人及其后续提出的几乎所有关键束流动力学问题的理解。我们回顾了再循环器的设计方程（这些方程已纳入基于MATHEMATICA的设计代码），并演示了如何通过保持关键无量纲量恒定，设计出一个小型再循环器样机，该样机将模拟驱动器的基本束流物理特性。我们进一步展示了重要物理量（如光学元件对误差的敏感性（包括场强和位置）、注入引出、真空要求以及发射度增长）如何从小型样机按比例缩放至驱动器规模的加速器。