L波段双阶梯阴极磁绝缘线振荡器的粒子模拟与实验研究

对L波段双阶梯阴极磁绝缘线振荡器（MILO）进行了粒子模拟，在输入电压710 kV，电流56.6 kA条件下，得到微波输出功率为4.8 GW，微波频率1.22 GHz。根据模拟结果设计MILO实验装置并开展实验研究，介绍了测试方法与测试系统，并对辐射微波功率、频率和模式进行了测量。在二极管电压740 kV，电流61 kA条件下，测得辐射微波功率为3.57 GW，微波脉宽46 ns，微波频率1.23 GHz，功率转换效率8%，辐射微波模式为TM01模。

Particle simulation and experimental research on L-band double ladder cathode MILO

An L-band double ladder cathode magnetically insulated transmission line oscillator(MILO) has been simulated by a 2.5D PIC code. Employing an electron beam of 710 kV, 56.6 kA, a microwave output of 4.8 GW was obtained at 1.22 GHz. Experiment equipment was designed according to the simulation result and an experiment test was carried out on a low impedance accelerator, including the test of microwave frequency, mode and power. The measurement system and methods are introduced, Under the condition of 740 kV diode voltage and 61 kA current, a microwave output power of 3.57 GW was got at 1.23 GHz, corresponding to a power conversion efficiency of 8%. The radiation mode was TM01, and pulse width was 46 ns.