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耐高场强荧光屏是第二代微光象增强器的关键部件之一。本文通过实验,系统地研究了在高场强作用下屏的耐压性能,讨论了在研制过程中所遇到的有关工艺问题,并根据大量的装管试验,获取了荧光屏工艺对后近贴放电的影响和实际效果。结果表明:我们所研制的第二代微光增强器荧光屏具有粘附力强、性能稳定、传函好、抗击穿能力强等特点。静态测量耐压强度一般可达10~4V/mm;上管后,在0.6～0.8mm间距内,施加4kV电压,不会引起屏层击穿、放电等现象,成功地满足了第二代倒象式微光象增强器的需要。
High-field-strength phosphor screen is one of the key components of the second generation of micro-image intensifier. In this paper, through experiments, the pressure resistance of the screen under high field strength was systematically studied, the related process problems encountered in the development process were discussed, and according to a large number of tube loading tests, The impact of the discharge and the actual effect. The results show that the second-generation glimmer intensifier screen we developed has the characteristics of strong adhesion, stable performance, good transfer function and strong anti-breakdown ability. Static measurement of compressive strength generally up to 10 ~ 4V / mm; after the tube, the spacing of 0.6 ~ 0.8mm, the application of 4kV voltage, does not cause the screen breakdown, discharge and so on, successfully meeting the second generation down The need for an iconic micro light image intensifier.