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发射系统的设计经过几十年的研究,在国外现已趋于成熟,而在我国目前还尚处在仿制阶段.随着显示摄象技术的不断发展,目前在高分辨率、长寿命等方面对器件的要求越来越高.对于不同的管子,需要根据处理的问题的不同,设计出不同的发射系统.一般认为发射系统的要求主要由以下三个方面:(1)要提供足够大的束电流;(2)要得到足够高的分辨率;(3)惰性尽可能小.
After several decades of research on the design of the launch system, it is now mature in foreign countries, and is still in the imitation stage in our country nowadays. With the continuous development of the display camera technology, at present, in terms of high resolution and long life The requirements for the device are getting higher and higher.For different tubes, different launching systems need to be designed according to different processing problems.It is generally considered that the requirements of the launching system mainly depend on the following three aspects: (1) to provide a large enough Beam current; (2) To get a sufficiently high resolution; (3) Inert as small as possible.