11. The excitation was provided by a cold cathode discharge; the total pressure was a few torr. 12. He was a pioneer in neon tube designs, and in the design of cold cathode rectifiers. 13. Cold cathode gauges are accurate from 10 " 2 torr to 10 " 9 torr.14. Cold cathode devices typically use a complex high voltage power supply with some mechanism for limiting current.15. Cold Cathode gauges are accurate from 10 & minus; 2 Torr to 10 & minus; 9 Torr.16. Recently, there has been renewed interest in using field effect arrays as cold cathodes in X-ray tubes. 17. :: The cold cathode fluorescent lamp used as the backlight for most liquid crystal displays contains mercury. 18. The process is too fast to preheat the cathodes, so the lamp instant-starts in cold cathode mode. 19. The surface of cold cathodes can emit secondary electrons at a ratio greater than unity ( breakdown ). 20. The cold cathode gives crossatron an advantage of achievable lifetime and reliability in comparison to a hydrogen-filled thyratron.
