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摘要
A compact L-band sealed-tube magnetically insulated transmission line oscillator (MILO) has been developed that does not require bulky external vacuum pump for repetitive operations. This device with a ceramic insulated vacuum interface, a carbon fiber array cathode, and non-evaporable getters has a base vacuum pressure in the low 10(-)6 Pa range. A dynamic 3-D Monte-Carlo model for the molecular flow movement and collision was setup for the MILO chamber. The pulse desorption, gas evolution, and pressure distribution were exactly simulated. In the 5Hz repetition rate experiments, using a 600 kV diode voltage and 48 kA beam current, the average radiated microwave power for 25 shots is about 3.4GW in 45 ns pulse duration. The maximum equilibrium pressure is below 4.0 x 10(-2) Pa, and no pulse shortening limitations are observed during the repetitive test in the sealed-tube condition. Published by AIP Publishing.
- 出版日期2017-6-21
- 单位中国人民解放军国防科学技术大学
