Hadad Mansour, Yousefnejad Sirous, Saeidi Farhad, Rahighi Javad, Shokri Babak
Department of Physics, Shahid Beheshti University, Tehran, Iran.
Iranian Light Source Facility, Institute for Research in Fundamental Sciences (IPM), Tehran, Iran.
J Synchrotron Radiat. 2021 Jul 1;28(Pt 4):1050-1058. doi: 10.1107/S1600577521004318. Epub 2021 Jun 1.
Undulators as the sources of high-brilliance synchrotron radiation are of widespread interest in new generations of light sources and free-electron lasers. Microwave propagation in a plasma-filled elliptical waveguide can be studied as a standard short-period undulator. This structure as a lucrative insertion device can be installed in the storage ring of third- and fourth-generation light sources to produce high-energy and high-brilliance synchrotron radiation. In this article, the propagation of the transverse electric modes in a plasma-filled waveguide with an elliptical cross-section is investigated, and the field components, the cut-off frequencies and the electron beam trajectory are calculated. With due consideration of the electron beam dynamics and in order to achieve a standard short-period undulator, parameters such as the dimensions of the waveguide elliptical cross-section, the microwave frequency and the plasma density are calculated.
作为高亮度同步辐射源的波荡器在新一代光源和自由电子激光器中受到广泛关注。填充等离子体的椭圆波导中的微波传播可作为标准短周期波荡器来研究。这种结构作为一种有吸引力的插入装置，可安装在第三代和第四代光源的储存环中，以产生高能量和高亮度的同步辐射。本文研究了填充等离子体的椭圆截面波导中横向电模的传播，并计算了场分量、截止频率和电子束轨迹。在充分考虑电子束动力学的情况下，为了实现标准短周期波荡器，计算了波导椭圆截面尺寸、微波频率和等离子体密度等参数。
