真空管
白炽灯
数码产品
电气工程
电力电子
阴极
超高真空
电子枪
工程类
工程物理
阴极射线管
电子
纳米技术
材料科学
物理
阴极射线
电压
核物理学
出处
期刊:Topics in Applied Physics
日期:2020-01-01
卷期号:: 1-31
被引量:3
标识
DOI:10.1007/978-3-030-47291-7_1
摘要
The historical rise of vacuum electronics (VE) was enabled by the availability of electrical power and by improved vacuum techniques, but its further progress relied on improved electron sources and their control. The development of VE has been pushed by several technological waves/cycles, starting with incandescent lamps, continuing with the radio tube era and then followed by the cathode-ray tubes. Yet vacuum electronics is still alive and has specific advantages in the high-power, high-frequency domain. The improvement trends of cathodes over time, related to specific and also advanced application requirements will be addressed.
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