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Space traveling wave tube (TWT) is one kind of microwave vacuum tube for communication, which must have high reliability, high power. The life of the space TWT is requested for a long lifetime of 10–15 years. In order to shorten the testing process, accelerated aging tests are performed at higher than normal operating temperature and currents of cathode. But in the process of the actual test, the...
This paper will present the more detail on the life experiment and discuss the M-type cathode life characteristic and operating fundamentals. The authors also give some advices for extending cathode life.
Space traveling wave tube (TWT) is one kind of microwave vacuum tube for communication, which must have high reliability, high power. The life of the space TWT is requested for a long lifetime of 10–15 years. In order to shorten the testing process, accelerated aging tests are performed at higher than normal operating temperature and currents of cathode. But in the process of the actual test, the...
We have successfully developed the vacuum-sealed carbon nano-tube (CNT) x-ray tube. The remarkable improvement of field emission properties, life time and stability, was obtained after high temperature brazing process in a vacuum circumstance.
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