Reconstruction of the three-dimensional bunch profile by tomography technique with RF deflecting cavity

Reconstruction of the three-dimensional bunch profile by tomography technique with RF deflecting cavity
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射频偏转腔层析成像技术重建三维束团轮廓

DOI:
10.1016/j.nima.2014.03.046
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发表时间:
2014-07
影响因子:
1.4
通讯作者:
Yan Lixin
Yan Lixin
中科院分区:
物理与天体物理3区
文献类型:
--
作者:
Shi Jiaru;Du Yingchao;Huang Wenhui;Tang Chuanxiang;Chen Huaibi;Yan Lixin

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我们已经开发了一种方法来完全重建三维(3D)的电子束团的轮廓,通过使用RF偏转腔和计算机断层扫描(CT)技术。束团在零相位时被偏转腔偏转,并在漂移一定距离或被网格传输后向下游标记投射。在不同偏转电压下获得的图像等效于束团在不同角度的投影。电子分布可以通过使用计算机断层摄影技术的重建算法来计算。粒子跟踪仿真和原理验证实验验证了整个过程和算法。
We have developed a method to fully reconstruct the three-dimensional (3D) profile of electron bunches by using an RF deflecting cavity and the computed tomography (CT) technique. The bunches are tilted by the deflecting cavity at zero-phase and projected towards a downstream flag after drifting a certain distance or being transported by a lattice. The acquired images under different deflecting voltages are equivalent to the projections of the bunch at different angles. The electron distribution can be computed by using the reconstructing algorithm of the computed tomography technique. The full procedure and the algorithm are verified with the particle tracking simulations and a proof-of-principle experiment.
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