论文标题
相对论电子束的辐射不稳定性进入分裂腔谐振器
Radiation instability of a relativistic electron beam into a split-cavity resonator
论文作者
论文摘要
对于相对论的情况，考虑了分裂腔不对称谐振器中的辐射不稳定性。考虑电子光束的空间电荷。在小信号近似中，研究了穿过谐振器的颗粒和梁电流的调节的能量损失。基于分析和数值计算，结果表明，分裂腔谐振器的对称配置可提供最高的不稳定性生长速率。结果表明，随着初始电子能量的增加，梁调制和能量转移的效率随着颗粒到电磁场的效率而降低。梁密度的增加对辐射不稳定性生长有积极影响。在开发电磁辐射的发电机和基于分裂腔谐振器调节光束电流的系统时，要考虑到获得的结果很重要。
The radiation instability in a split-cavity asymmetric resonator is considered for the relativistic case. The space charge of an electron beam is taken into account. In the small-signal approximation, the energy loss by particles passing through the resonator and the modulation of beam current are investigated. Based on analytical and numerical calculations, it is shown that the symmetric configuration of a split-cavity resonator provides the highest rate of instability growth. It is shown that the beam modulation and the efficiency of energy transfer from particles to electromagnetic field decrease with the increase in the initial electron energy. The increase in beam density has a positive effect on the radiation instability growth. It is important to take into account the obtained results when developing generators of electromagnetic radiation and systems for modulating the beam current based on a split-cavity resonator.
