A 162.5 MHz, 2.1 MeV Radio Frequency Quadruples (RFQ) structure is being designed for the Injector Scheme II of China Accelerator Driver System (CADS) driver linac. The RFQ will operate at continuous wave (CW) mode as required. For the CW normal conducting machine, the heat management will be one of the most important issues, since the temperature fluctuation may cause cavity deformation and leading to the resonant frequency shift. Therefor a detailed multi-physics analysis is necessary to ensure that the cavity can be stably worked at the required power level. The multi-physics analysis process includes RF Electromagnetic analysis, Thermal analysis, Mechnical analysis, and this process will be iterated for several cycles until the satisfied solution can be found. As one of the widely accepted measures, the cooling water system is used for frequency fine tunning, so the tunning capability of the cooling water system is also studied at different conditions. The results indicate that with the cooling water system, both the temperature rise and the frequency shift can be controlled in an acceptable level.
Status Report on the Low-Energy Demonstration Accelerator (LEDA)
75 keV的注入器和6.7 MeV的质子束流，包括连续波，100毫安质子直线加速器的第一部分的加速器生产氚（APT）项目已经建成和运行。LEDA电子束发生器已经过脉冲和连续波输出束流<=100 mA的广泛测试。高达2.2兆瓦的连续波射频功率从350兆赫的射频系统耦合到超导体，包括670千瓦的连续波质子束。由四极磁铁扫描测量确定的93 mA脉冲式双极输出光束的发射度为ex x ey = 0.25 x 0.31（π mm mrad）2 [rms归一化]。一个后续的实验，有意引入和测量光束晕的激光器输出光束，现在正在安装。
Commissioning of the 1.4 Mev/u High Current Heavy Ion Linac at Gsi
Wideroe型Unilac预剥离器直线加速器的拆卸于1999年初进行。必须获得SIS中最重元素的粒子数增加两个数量级以上。从那时起，新的高电流注入器（HSI）由H型整流器和DTL结构组成，用于双束操作，并成功调试。高电荷注入器（HLI）在此期间提供主直线加速器。同时完成射频发射器和射频结构的调节和运行。HSI调试策略包括在每个运输和加速段之后使用多功能诊断测试台进行束流调查。将讨论LEBT、超透镜、IH槽I和II以及剥离段之后的广泛调试测量结果（例如横向发射度、束流宽度、束流传输）。使用来自MUCIS离子源的40 Ar 1+束来填充直线加速器直到理论空间电荷极限。1999年11月开始进行例行作业。
