CSNSRCS引出系统快脉冲冲击磁铁样机的设计

 设计了中国散裂中子源(CSNS)快循环同步加速器(RCS)引出系统快脉冲冲击磁铁样机。为降低磁铁和其电源的研制难度,保证运行的可靠性，决定采用美国散裂中子源(SNS)的Single-turn结构。根据磁铁的设计指标，给出了磁铁设计要求铁芯材料选择方法、整体的结构设计以及如何对磁铁进行定位和准直，并采用Opera程序进行模拟计算，结果表明：当铁芯长度为220 mm时，磁有效长度大约为302 mm；磁感应密度最大的地方在4个内角上，约为0.215 T；在133 mm×200 mm的平面范围内，磁场均匀性优于±0.8%。理论分析和Opera程序模拟均验证了磁铁结构方案的可行性。

Fast kicker magnet prototype for CSNSRCS extraction system

The design of the fast kicker prototype magnet for China Spallation Neutron Source(CSNS) rapid cycling synchronous(RCS) extraction has been introduced. Single-turn structure of SNS in U.S. was adopted for magnet power supply research difficulties and operation reliability. The choice for material of iron core, all the structure design and the method of collimation for the magnet were also described. Simulation results of Opera show that when the length of the core is 220 mm, the effective magnetic length is about 302 mm and the maximal magnetic density is around 0.215 T at four interior angles. Corresponding field uniformity is within 0.8% in the area of 133 mm×200 mm. Theoretical analysis and program simulation of Opera have verified the feasibility of magnet basic structure.