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1.绪言目前,微波管已满足了通信、广播、雷达、粒子加速、加热等的需要。近年来,建立超大形加速器以及核聚变用的临界实验装置,要求极大的高频功率。此外,在卫星通信和卫星广播方面,又特别需要高可靠的星载微波管。为此,本文叙述了这些大功率微波管的研制动向,并举例介绍与真空直接或间接有关的问题及表面处理问题。一般说
1. INTRODUCTION At present, microwave tubes have met the needs of communications, broadcasting, radar, particle acceleration, heating and the like. In recent years, the establishment of large-scale accelerator and nuclear fusion with the critical experimental device, requiring great high-frequency power. In addition, there is a particular need for highly reliable on-board microwave tubes for satellite communications and satellite broadcasting. To this end, this article describes the development trend of these high-power microwave tubes, and an example to introduce the vacuum directly or indirectly related issues and surface treatment issues. Generally speaking