AbstractWe are currently constructing a prototype quadrupole electromagnet for the proposed Induction Linac Systems Experiments (ILSE) at LBNL. ILSE (PUB-5219, 1989 (Lawrence Berkeley Laboratory)) will address many physics and engineering issues relevant to the design of a heavy ion fusion driver accelerator. The pulsed electromagnet has two layers of current windings and will produce a field gradient of 28 T m−1, with a usable aperture radius of 6 cm. It operates at a repetition rate of I Hz, steady state. In this paper, we discuss how the interaction of various concerns such as maximum dynamic aperture, short lattice period, field quality, iron yoke weight, heat transfer, and voltage stand-off have led to our particular design choices. We also present two- and three-dimensional numerical calculations concerning field topography and the results of transport simulations of space-charge-dominated ion beams with ILSE parameters.
我目前正在为LBNL的感应直线加速器系统实验（ILSE）建造一个四极电磁铁原型。ILSE（PUB-5219，1989年，劳伦斯伯克利国家实验室）将解决与重离子聚变驱动加速器设计相关的众多物理及工程问题。该脉冲电磁铁具有两层电流绕组，将产生28 T m⁻¹的磁场梯度，有效孔径半径为6厘米。它以1赫兹的重复频率稳态运行。在本文中，我们讨论了诸如最大动态孔径、短晶格周期、磁场质量、铁磁轭重量、热传递以及电压耐受能力等各种因素如何相互作用，从而引导我们做出了特定的设计选择。我们还展示了关于磁场分布的二维和三维数值计算，以及使用ILSE参数进行空间电荷主导离子束输运模拟的结果。