磁场引导双电子束传输模拟和实验研究
Simulation and experimental study on transportation of dual-beam guided by confining magnetic-field
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摘要: 利用外加纵向磁场把单台加速器驱动双阴极二极管产生的同步双电子束引出双漂移管，是双电子束实用化的关键环节。在实心束情况下，对双电子束约束磁场进行了3维PIC模拟。在粒子模拟的基础上搭建了双电子束磁场引导系统，进行了磁场引导环形双电子束传输实验研究，在二极管电压约380 kV时，环形双束流值分别为5.10 kA和4.92 kA。实验结果表明，所设计磁场系统能够对环形双电子束进行有效约束，有效约束磁场约0.5 T。Abstract: Using external longitudinal magnetic-field to guide dual-beam out of the dual-shift tubes is a key step for the practicality of synchronizing dual-beam produced by a single accelerator. On the basis of the simulation of the confining magnetic-field for the solid dual-beam, the experiment of magnetic-field guiding annular dual-beam was presented. When the diode voltage was 380 kV, dual-beam currents of 5.10 kA and 4.92 kA were obtained. The experimental results indicate that the designed magnetic-field system could confine the annular dual-beam effectively, and the critical confining magnetic-field is about 0.5 T．
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Key words:
- high power microwave /
- confining magnetic-field /
- dual-cathodediode /
- annular dual-beam /
- pic simulation
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