Simulation of Smith-Purcell terahertz radiation using a particle-in-cell code
Simulation of Smith-Purcell terahertz radiation using a particle-in-cell code
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DOI：
10.1103/physrevstab.9.060701
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发表时间：
2006-06-01
影响因子：
--
通讯作者：
Gardelle, J.
中科院分区：
文献类型：
--
作者：
Donohue, J. T.;Gardelle, J.
利用二维细胞内粒子码MAGIC模拟了太赫兹频率下Smith-Purcell （SP）辐射的产生。模拟假设一个薄的（但无限宽的）单能电子束通过衍射光栅。我们模拟了两种配置，一种类似于达特茅斯SP自由电子激光器，具有低能量连续光束（我们使用轴向磁场将电子约束为本质上的一维运动）。另一个类似于麻省理工学院最近的实验，使用15兆电子伏的预束束。
A simulation of the generation of Smith-Purcell (SP) radiation at terahertz frequencies has been performed using the two-dimensional particle-in-cell code MAGIC. The simulation supposes that a thin (but infinitely wide) monoenergetic electron beam passes over a diffraction grating. We simulate two configurations, one similar to the Dartmouth SP free-electron laser, with a low-energy continuous beam (we use an axial magnetic field to constrain the electrons to essentially one-dimensional motion). The other is similar to the recent MIT experiment that uses a prebunched 15 MeV beam.