PRESSURIZED TRIGATRONS WITH A 10 KV – 50 KV LOW JITTER OPERATING RANGE

摘要

By using enclosed switches at higher pressures and smaller electrode spacing the breakdown characteristics of asymmetric trigatrons, described in detail by Lupton, have been further improved. The mechanical construction remains simple and voltages up to 50 kv can be switched. At electrode distances from 3 mm to 5 mm and pressures between 15 and 75 psi both statistical and formative time lags are below 20 musec, even with the operating voltage as low as one third of the static breakdown voltage. The comparatively small breakdown voltage in the triggered case with the observed short delay times is caused by the increasing no uniformity of the electric field when the trigger potential is raised, and by an intermittent corona between the trigger pin and the main electrode which starts during the charging period.