Measurement of femtosecond electron bunches using a rf zero-phasing method
Measurement of femtosecond electron bunches using a rf zero-phasing method
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DOI：
10.1103/physreve.57.2283
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发表时间：
1998-02
影响因子：
2.4
通讯作者：
Ding-xiong Wang;G. Krafft;C. Sinclair
中科院分区：
文献类型：
--
作者：
Ding-xiong Wang;G. Krafft;C. Sinclair
束长度短至84 fs（rms）已被测量在杰斐逊实验室使用射频零相位技术。据我们所知，这是第一次精确测量的纵向分布函数在这一制度。在本文中，描述了一种用于计算纵向分布函数和聚束长度的分析方法，对于任意的纵向和横向分布的情况下，聚束的固有能量扩展是小的相比，由零相位腔赋予的相关能量扩展。测量结果，这是在良好的协议与数值模拟。{版权} {美国物理学会}
Bunch lengths as short as 84 fs (rms) have been measured at Jefferson Laboratory using a rf zero-phasing technique. To the best of our knowledge, this is the first accurate measurement of the longitudinal distribution function in this regime. In this paper, an analytical approach for computing the longitudinal distribution function and bunch length is described for arbitrary longitudinal and transverse distributions for the case where the intrinsic energy spread of the bunch is small compared to the correlated energy spread imparted by zero-phasing cavities. The measurement results are presented, which are in excellent agreement with numerical simulations. {copyright} {ital 1998} {ital The American Physical Society}