Compact Relativistic Magnetron With Gaussian Radiation Pattern
Compact Relativistic Magnetron With Gaussian Radiation Pattern
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DOI：
10.1109/tps.2012.2212910
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发表时间：
2012-08
影响因子：
1.5
通讯作者：
C. Leach;S. Prasad;M. Fuks;E. Schamiloglu
中科院分区：
文献类型：
--
作者：
C. Leach;S. Prasad;M. Fuks;E. Schamiloglu
提出了一种紧凑型A6相对论磁控管，它工作在π模，其辐射通过与阳极块截面相同的圆柱形波导轴向提取为TE 11模。这种辐射模式类似于高斯微波束。这种磁控管的优点包括所施加的磁场的最小体积，并且因此，对于从相互作用空间泄漏的电子，电子转储接近阳极块，这最小化了磁控管的直径和轴向长度。通过使用MAGIC粒子在细胞（PIC）模拟，我们证明了产生高斯辐射模式的可能性，当施加的电压为350千伏的功率约为0.5吉瓦。这种紧凑的磁控管比具有衍射输出（MDO）的磁控管更容易实现，尽管效率降低。
A compact A6 relativistic magnetron is proposed which operates in the π-mode and whose radiation is extracted axially as a TE11 mode through a cylindrical waveguide with the same cross section as that of the anode block. This radiated mode is similar to a Gaussian microwave beam. The advantages of this magnetron include the minimal volume of the applied magnetic field and, as a consequence, the proximity of the electron dump to the anode block for the electrons leaking from the interaction space that minimizes both the diameter and the axial length of the magnetron. By using MAGIC particle-in-cell (PIC) simulations, we demonstrate the possibility of generating a Gaussian radiation pattern with power of about 0.5 GW when the applied voltage is 350 kV. This compact magnetron is easier to implement than the magnetron with diffraction output (MDO), although with reduced efficiency.