虚阴极振荡器“硬管化”实验研究
Experimental research of “hardtubed” VCO apparatus
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摘要: 采用锆泵作为吸气泵，设计出静态保真空模拟实验装置。在该实验装置上进行了保真空可行性实验，装置在经过10 d的保真空后，真空度为1.4×10-3 Pa 。在模拟保真空实验成功实现的基础上，用常规微波管技术设计加工了“硬管”器件，并进行保真空实验，静态下真空度经过15 d仍能维持在2×10-2 Pa。该器件在峰值电压为330 kV的条件下，输出微波功率达到650 MW，脉宽为40 ns，主频为3.68 GHz，性能比普通器件有很大改善，微波脉宽更宽，频谱更单一，而且稳定性很高。Abstract: Adopting zircon pump as inspiration pump, a static state simulation equipment was designed for vacuum holding. The feasibility simulation experiment about keeping vacuum was performed, and the simulation results indicated that the pressure of this equipment was 1.4×10-3 Pa after vacuum holding for ten days. Based on the success of the simulation experiment, a hardtube apparatus was designed for microwave experiment by adopting MVE technology and a vacuum experiment was carried out. The experimental result showed that the pressure was 2×10-2 Pa after fifteen days. When the peak voltage was 330 kV, the power of output microwave was 650 MW, the width of microwave pulse was 40 ns, and the major frequency was 3.68 GHz. Compared with the experimental result of common apparatus, the output powe
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Key words:
- hpm /
- virtual cathode oscillator (vco) /
- vacuum holding /
- hardtube
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