用于自由电子激光器(FEL)的混合型波荡器研制  

Development of Hybrid Wiggler for Free Electron Laser (FEL)

作　　者：黎维华[1] 邓德荣[1] 王远[1] 余虹[1] 

机构地区：[1]中国工程物理研究院应用电子学研究所,四川绵阳621900

出　　处：《磁性材料及器件》2009年第2期41-44,共4页Journal of Magnetic Materials and Devices

摘　　要：中国工程物理研究院自由电子激光(中物院FEL)的波荡器采用NdFeB为磁块、FeCoV为磁极的Halbach混合型结构,在间隙为18mm的条件下,测得的峰值场强为323.5mT,好场区大于10mm,单电子轨迹模拟中心偏移小于0.1mm,单电子小信号增益与理想增益的比率高达98%。A NdFeB-FeCoV Halbach hybrid wiggler has been designed and built for free electron laser of China Academy of Engineering Physics（CAEP）. Good field aperture of more than 10mm and peak field of up to 323.5mT were achieved with a 18 nun gap. The trace simulation for a single electron showed that the center offset was less than 0.1 mm, and the ratio of the small signal gain to the ideal small signal gain was more than 98 percent.

关 键 词：FEL 波荡器 磁路 HALBACH NDFEB磁体 

分 类 号：TN752[电子电信—电路与系统] TM144[电气工程—电工理论与新技术]