Longitudinal electron bunch profile reconstruction by performing phase retrieval on coherent transition radiation spectra
Longitudinal electron bunch profile reconstruction by performing phase retrieval on coherent transition radiation spectra
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DOI：
10.1103/physrevstab.16.040701
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发表时间：
2013-04
影响因子：
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通讯作者：
S. Bajlekov;M. Heigoldt;A. Popp;J. Wenz;K. Khrennikov;S. Karsch;S. Hooker
中科院分区：
文献类型：
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作者：
S. Bajlekov;M. Heigoldt;A. Popp;J. Wenz;K. Khrennikov;S. Karsch;S. Hooker
考虑了用相位恢复算法从相干跃迁辐射（CTR）的光谱中重建电子束的纵向束形。本文描述了针对该应用开发的一种新算法——气泡包算法。用合成数据进行的测试表明，只要CTR谱在足够宽的范围内已知，就可以成功地重建单电子束和双电子束的纵剖面。介绍了气泡阱算法在激光加速电子束谱重建中的应用。所得结果与其他方法估计的束长一致。
The application of phase-retrieval algorithms to the reconstruction of the longitudinal bunch profile of an electron bunch from the spectrum of the coherent transition radiation (CTR) it produces is considered. The development of a new algorithm for this application, the Bubblewrap algorithm, is described. Tests with synthetic data show successful reconstruction of the longitudinal profile of single and double electron bunches, provided that the CTR spectrum is known over a sufficiently wide range. The application of the Bubblewrap algorithm to the reconstruction of laser-accelerated electron bunch profiles from experimental data is demonstrated. The results are shown to be consistent with estimates of the bunch length obtained by other methods.