A photoionization effect can also be observed here, as the electrode area covered by the glow discharge can be increased by shining light at the lamp.
32.
However, the formation of the keep-alive glow discharge is more sensitive, which necessitates the use of a radioactive source to aid its ignition.
33.
Thirdly, plasmas ( like glow discharges or fluorescent lights ) tend to emit a visible glow : this is not compatible with overall low observability concept.
34.
A drawn arc can be initiated by two electrodes initially in contact and drawn apart; this can initiate an arc without the high-voltage glow discharge.
35.
Unlike a glow discharge, an arc has little discernible structure, since the positive column is quite bright and extends nearly to the electrodes on both ends.
36.
It has long been recognized that glow discharges would play a much larger industrial role if they could be generated at normal pressure, and in ambient air.
37.
The collisions of the flowing electrons in the plasma with the inert gas atoms leads to light emission; such light-emitting plasmas are known as glow discharges.
38.
Because the glow discharge is a " statistical " process, a certain amount of electrical noise is introduced into the regulated voltage as the level of ionization varies.
39.
He is best known for his work associated with cold cathode glow discharge devices, and has published over a dozen papers and a book dealing with the subject.
40.
A germicidal lamp uses a low pressure mercury vapor glow discharge identical to that in a fluorescent lamp, but the uncoated fused quartz envelope allows ultraviolet radiation to emerge.
