论文标题
带电的粒子束的辐射，穿过深层瓦楞结构，相对较小
Radiation of a charged particle bunch passing through a deeply corrugated structure with a relatively small period
论文作者
论文摘要
我们通过通过波纹传导平面结构的一堆分析电磁辐射。假定辐射的波长比波纹期大得多。在此近似值下，瓦楞纸结构可以用平滑的表面代替，在该表面上可以满足所谓的等效边界条件（EBC）。在这里，我们还假设结构是深层波纹的，即结构深度与逆波数的顺序相同。使用EBC，我们获得了一般解决方案并渐近地研究它。结果表明，产生了两种类型的辐射：体积辐射和表面波。两种类型的辐射都进行了详细分析。我们证明了辐射对结构深度高度敏感，该深度可用于产生强大的表面辐射。也考虑了体积和表面辐射的束能量损失。特别是，获得并分析了能量密度对波纹参数的依赖性。
We analyze electromagnetic radiation from a bunch passing through a corrugated conductive planar structure. The wavelengths of the radiation are assumed to be much greater than the corrugation period. Under this approximation, the corrugated structure can be replaced with a smooth surface on which the so-called equivalent boundary conditions (EBC) are fulfilled. Here, we also assume that the structure is deeply corrugated, i.e. the structure depth is of the same order as an inverse wavenumber. Using the EBC we obtain a general solution and investigate it asymptotically. It is shown that two types of radiation are generated: volume radiation and surface waves. Both types of the radiations are analyzed in detail. We demonstrate that the radiation is highly sensitive to the structure depth, which can be used, specifically, for generating the powerful surface radiation. The energy losses of the bunch by both volume and surface radiations are considered as well. In particular, the dependences of the energy density on the corrugation parameters are obtained and analyzed.
