BFEL束团长度测量系统的离线实验研究  

Off-Line Experiment on the Bunch Length Diagnostic Device at the BFEL

作　　者：朱俊彪[1] 李智慧[2] 白莎[1] 谢家麟[1] 

机构地区：[1]中国科学院高能物理研究所,北京100049 [2]清华大学核能与新能源技术研究所,北京102201

出　　处：《高能物理与核物理》2006年第z1期78-80,共3页High Energy Physics and Nuclear Physics

基　　金：国家自然科学基金(19875066);国家高技术-激光技术领域经费和中国科学院创新基金资助~~

摘　　要：短和超短束团长度测量技术是发展短波长FEL和高级加速器的关键技术之一．为测试研制的短和超短束团长度测量系统雏形装置,利用黑体辐射仪的连续远红外-毫米波辐射替代BFEL的4ps微束团产生的亚毫米波-毫米波CTR,进行了离线模拟实验,获得良好调制的干涉图．实验表明,该雏形装置软硬件系统的运行满足初期的设计构想;干涉仪经细致的光学调节,可获得较为调制充分的干涉图; LabVIEW编制的测控软件满足控制和采集的基本需要．提出了进一步改善的措施．Short and ultra-short bunch length measurement technique is one of the key techniques used to develop the short wavelength FEL and advanced accelerators. Off-line test experiment on a newly-developed bunch-length diagnostic device was implemented with the far-IR radiation emitted from a black body radiator instead of far-IR to mm wave coherent transition radiation generated by a train of micro-bunches, and got a good autocorrelation mterferogram. The experiment showed that its hard and soft-ware worked as good as expected. Through a fine collimation, the well-modulated interferogram can be obtained. Further improvements are put forward.

关 键 词：束团长度测量装置 黑体辐射 相干渡越辐射 离线实验 

分 类 号：TL503[核科学技术—核技术及应用]