【摘要】 硫化锑（Sb₂S₃）光导摄象管SF-25型是工业电视机的重要部件,而管内残气成分对其参数及寿命有严重影响。实验研究了新制管及长期存放管内吸气剂蒸散阴极激活老练,电子束扫靶及存放时间对管内残气成分的影响。另外,对管内残气成分与阴极活性的关系也进行了研究。最后,对摄象管长期存放后真空失效原因进行了讨论。更多还原

【Abstract】 Sb₂S₃ Vidicon tube（Type SF-25） is an important component of industrial camera. The residual gases composition within these tube influences severely their parameters＆ life. Effects of evaporation of getter, activation＆aging of cathode, signalplate scanning with electron beam ＆ time of storing upon the composition of residual gases in new tube ＆ long storing tube were studied experimently. Besides, the relationship of the composition of residual gases ＆ the cathode activity was also studied. Finally, causes of failure in vacuum within long storing tubes are discussed.更多还原