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国内研制和生产视象管已有二十余年。虽然从事这项工作的单位不少,但主要性能和指标的改进进展不大,而且基本上都处在同一水平上。在研制过程中,各单位也都遇到相同的困难。主要光电性能和国外差距很大,按部标测试,国产管一般灵敏度仅在0.15～0.20微安,惰性都在28%以上;而日本同类产品(如7735A)灵敏度则在0.30微安以上,惰性仅百分之十几。为什么国产视象管指标做不上去呢?这就迫使我们关心如下一些问题: 1)我们和国外管水平差距是靶面材料问题还是纯工艺问题?或是兼而有之呢? 2)国外硫化锑视象管的靶面材料是纯的硫化锑还是硫化锑掺杂呢? 为缩短研制周期,我厂硫化锑靶面研制组于1981年初决定对日本7735 A视象管的靶面
Domestic research and production of visual tube has been more than 20 years. Although there are quite a few units engaged in this work, improvements in major performance and indicators have shown little progress and are basically on the same level. In the development process, all units also encountered the same difficulties. The main photoelectric properties and the gap between foreign countries, according to the standard test, the general domestic tube sensitivity of only 0.15 ~ 0.20 microampere, inertia are more than 28%; while the Japanese similar products (such as 7735A) sensitivity is above 0.30 microamps, inert Only ten percent. Why domestic visual tube indicators do not go up? This forces us to care about the following questions: 1) Our foreign tube level gap is the target material problem or pure process? Or both? 2) foreign vulcanization Antimony image tube target surface material is pure antimony sulfide or antimony sulfide doping it? To shorten the development cycle, our factory antimony sulfide target research group decided in early 1981 Japan 7735 A video tube target surface