Generation and measurement of 50-fs(rms) electron pulses.
Generation and measurement of 50-fs(rms) electron pulses.
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DOI：
10.1103/physrevlett.73.967
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发表时间：
1994-08
影响因子：
8.6
通讯作者：
P. Kung;H. Lihn;Helmut Wiedemann;David Bocek
中科院分区：
文献类型：
--
作者：
P. Kung;H. Lihn;Helmut Wiedemann;David Bocek
斯坦福阳光设施已开发出一种电子源，它可以产生短至 50 fs (rms) 的电子束，每个微束为 (2[minus]4.6)[times]10[sup 8][ital e][sup [minus]]。该源由一个 2.6 MeV 射频枪组成，带有热离子阴极和用于束压缩的 α 磁体。在迈克尔逊干涉仪中使用以等于束长或更长的波长发射的相干跃迁辐射，通过光学自相关来确定束长。描述了实验设置和束长度测量结果。
An electron source has been developed at the Stanford SUNSHINE facility which can produce electron bunches as short as 50 fs (rms) with (2[minus]4.6)[times]10[sup 8][ital e][sup [minus]] per microbunch. This source consists of a 2.6 MeV rf gun with a thermionic cathode and an alpha magnet for bunch compression. Coherent transition radiation emitted at wavelengths equal to the bunch length and longer is used in a Michelson interferometer to determine the bunch length by optical autocorrelation. The experimental setup and results of bunch length measurements are described.