摘要：A new 20 kV high voltage system has been designed,developed and operated in CSRm cooler[1],in order to satisfy requirements of pulsed electron cooling experiments[2].Series of FuG high voltage power supplies were used,including a 20 kV main power supply,two 3.5 kV DC power supplies for the anode and suppressor,a3.5 kV power supply for the grid,a 3.5 kV power supply with the maximum current of 3.0 A for the collector and a 20 V power supply for the *** sketch of the power supply system is shown in Fig.1 and the main parameters of all power supplies are listed in Table *** residual ripple of the main power supply is around 10􀀀5(max.p-p value).A LAN interface was built in the main power supply,and other modules were communicated with the main power supply by optical fiber.A interlock system was used for the grid and anode power supplies,therefore the extracted electron beam can be cutoff quickly(<10 ms)while the leakage current of the main power supply is over threshold.

摘要：The 100 kV electron cooler device is designed for the new project HIAF to improve beam quality in SRing[1,2].The design work of the electron gun and the collector for the cooler has been finished and the prototype has being manufactured in the *** structures of the gun and collector are shown in Fig.1.

摘要：强流重离子加速器装置(HIAF)将采用电子冷却技术,降低重离子束流的发射度和动量分散,提高核物理及原子物理实验的精度与亮度。电子冷却装置的冷却段磁场均匀度是影响冷却效率的主要参数,HIAF电子冷却装置采用多个独立高精度线圈串联产生纵向磁场的设计,获得极高的冷却段磁场均匀度。本文介绍了一种测量高精度线圈磁轴偏角的装置,采用定位装置测量线圈的几何对称轴,通过旋转霍尔探头测量线圈中心平面上的径向与轴向磁场分布,再根据磁场测量数据计算出线圈磁轴与几何对称轴之间的偏角。实际测量表明该装置的磁轴偏角测量精度达到±0.10 mrad。测量得到的HIAF电子冷却装置冷却段线圈样品的磁轴偏角为(1.28±0.10)mrad,达到设计要求。

摘要：为了提高兰州重离子加速器冷却储存环(HIRFL-CSR)的运行效率、改善加速器输出束流品质,并实现几个加速装置分时供束,提高整个重离子加速装置的利用率,特为(HIRFL-CSR)增建一台新的注入器——CSR-LINAC。在108.48 MHz的RFQ之后的CSR-LINAC主加速段,主要由一台108.48 MHz和两台216.96 MHz的IH型漂移管直线加速器组成,用于加速荷质比为1/8.5～1/3之间的重离子,其最大的束流流强为3 mA,并将粒子从0.3 Me V/u加速到3.71 Me V/u。运用KONUS动力学原理,在满足设计指标的情况下,首先利用Trace Win程序进行中能束线MEBT设计,后针对高频腔体设计和束流匹配的基本参数的系列讨论,特别是对CSR-LINAC的中能束流匹配线、参数选择和IH型KONUS结构的漂移管直线加速器进行设计模拟优化。最终得出,在保证腔体设计指标和95.3%的传输效率的情况下,该紧凑型直线加速结构经过三个腔体的加速后,束流的纵向归一化均方根发射度增长仅有25%;同时发现,当流强达到3 mA时,存在空间电荷效应,导致其纵向相宽增长约25%,最大横向包络也存在16.5%的涨落。