Discharge tube phenomena Electric discharge tube.

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Presentation transcript:

Discharge tube phenomena Electric discharge tube. + - High voltage supply Air at low pressure To vacuum pump

Electric discharge tube Anode cathode Violet streamers Pressure = 20 mm Hg

Electric discharge tube Anode cathode Violet streamers Pressure = 20 mm Hg

Electric discharge tube Anode cathode Violet streamers Pressure = 20 mm Hg

Electric discharge tube Anode cathode Violet streamers Pressure = 20 mm Hg

Electric discharge tube Anode cathode Violet streamers Pressure = 20 mm Hg

Electric discharge tube Anode cathode Violet streamers Pressure = 20 mm Hg

Electric discharge tube Anode cathode Violet streamers Pressure = 20 mm Hg

Electric discharge tube Anode cathode Violet streamers Pressure = 20 mm Hg

Electric discharge tube Blue negative glow Anode cathode FDS F D S Pink positive column Pressure = 5 mm Hg

Electric discharge tube Blue negative glow Anode cathode FDS F D S Pink positive column Pressure = 5 mm Hg

Electric discharge tube Blue negative glow Anode cathode FDS F D S Pink positive column Pressure = 5 mm Hg

Electric discharge tube Blue negative glow Anode cathode FDS F D S Pink positive column Pressure = 5 mm Hg

Electric discharge tube Blue negative glow Anode cathode FDS F D S Pink positive column Pressure = 5 mm Hg

Electric discharge tube Blue negative glow Anode cathode FDS F D S Pink positive column Pressure = 5 mm Hg

Electric discharge tube Blue negative glow Anode cathode FDS F D S Pink positive column Pressure = 5 mm Hg

Electric discharge tube Blue negative glow Anode glow Cathode glow FDS C D S C D S Pink positive column Pressure = 0.05 mm Hg

Electric discharge tube Blue negative glow Anode glow Cathode glow FDS C D S C D S Pink positive column Pressure = 0.05 mm Hg

Electric discharge tube Blue negative glow Anode glow Cathode glow FDS C D S C D S Pink positive column Pressure = 0.05 mm Hg

Electric discharge tube Blue negative glow Anode glow Cathode glow FDS C D S C D S Pink striations Pressure = 0.05 mm Hg

Electric discharge tube Blue negative glow Anode glow Cathode glow FDS C D S C D S Pink striations Pressure = 0.05 mm Hg

Electric discharge tube Blue negative glow Anode glow Cathode glow FDS C D S C D S Pink striations Pressure = 0.05 mm Hg

Electric discharge tube Blue negative glow Anode glow Cathode glow FDS C D S C D S Pink striations Pressure = 0.05 mm Hg

Electric discharge tube Blue negative glow Anode glow Cathode glow FDS C D S C D S Pink striations Pressure = 0.05 mm Hg

Electric discharge tube Blue negative glow Anode glow Cathode glow FDS C D S C D S Pink striations Pressure = 0.05 mm Hg

Electric discharge tube Blue negative glow Anode glow Cathode glow FDS C D S C D S Pink striations Pressure = 0.05 mm Hg

Electric discharge tube Anode glow Cathode glow Cathode rays C D S Pressure = 0.01mm Hg or less Glass glows green fluorescence

Electric discharge tube Anode glow Cathode glow Cathode rays C D S Pressure = 0.01mm Hg or less Glass glows green fluorescence

Electric discharge tube Anode glow Cathode glow Cathode rays C D S Pressure = 0.01mm Hg or less Glass glows green fluorescence

Electric discharge tube Anode glow Cathode glow Cathode rays C D S Pressure = 0.01mm Hg or less Glass glows green fluorescence

Electric discharge tube Anode glow Cathode glow Cathode rays C D S Pressure = 0.01mm Hg or less Glass glows green fluorescence

Electric discharge tube Anode glow Cathode glow Cathode rays C D S Pressure = 0.01mm Hg or less Glass glows green fluorescence

Electric discharge tube Anode glow Cathode glow Cathode rays C D S Pressure = 0.01mm Hg or less Glass glows green fluorescence

Electric discharge tube Anode glow Cathode glow Cathode rays C D S Pressure = 0.01mm Hg or less Glass glows green fluorescence

Electric discharge tube Anode glow Cathode glow Cathode rays C D S Pressure = 0.01mm Hg or less Glass glows green fluorescence

Electric discharge tube Anode glow Cathode glow Cathode rays C D S Pressure = 0.01mm Hg or less Glass glows green fluorescence

Electric discharge tube Anode glow Cathode glow Cathode rays C D S Pressure = 0.01mm Hg or less Glass glows green fluorescence

Electric discharge tube Anode glow Cathode glow Cathode rays C D S Pressure = 0.01mm Hg or less Glass glows green fluorescence

Electric discharge tube Anode glow Cathode glow Cathode rays C D S Pressure = 0.01mm Hg or less Glass glows green fluorescence

Electric discharge tube Anode glow Cathode glow Crookes dark space Cathode rays C D S Pressure = 0.01mm Hg or less Glass glows green fluorescence

Electric discharge tube Anode glow Cathode glow Crookes dark space Cathode rays C D S Pressure = 0.01mm Hg or less Glass glows green fluorescence

Electric discharge tube Anode glow Cathode glow Crookes dark space Cathode rays C D S Pressure = 0.01mm Hg or less Glass glows green fluorescence

Electric discharge tube Anode glow Cathode glow Crookes dark space Cathode rays C D S Pressure = 0.01mm Hg or less Glass glows green fluorescence

Electric discharge tube Anode glow Cathode glow Crookes dark space Cathode rays C D S Pressure = 0.01mm Hg or less Glass glows green fluorescence

Electric discharge tube Anode glow Cathode glow Crookes dark space Cathode rays C D S Pressure = 0.01mm Hg or less Glass glows green fluorescence

Electric discharge tube Anode glow Cathode glow Crookes dark space Cathode rays C D S Pressure = 0.01mm Hg or less Glass glows green fluorescence

Electric discharge tube Anode glow Cathode glow Crookes dark space Cathode rays C D S Pressure = 0.01mm Hg or less Glass glows green fluorescence

Electric discharge tube Anode glow Cathode glow Crookes dark space Cathode rays C D S Pressure = 0.01mm Hg or less Glass glows green fluorescence

Electric discharge tube Anode glow Cathode glow Crookes dark space Cathode rays C D S Pressure = 0.01mm Hg or less Glass glows green fluorescence

Electric discharge tube Anode glow Cathode glow Crookes dark space Cathode rays C D S Pressure = 0.01mm Hg or less Glass glows green fluorescence

Electric discharge tube Anode glow Cathode glow Crookes dark space Cathode rays C D S Pressure = 0.01mm Hg or less Glass glows green fluorescence

Electric discharge tube Anode glow Cathode glow Crookes dark space Cathode rays C D S Pressure = 0.01mm Hg or less Glass glows green fluorescence

Electric discharge tube Anode glow Cathode glow Crookes dark space Cathode rays C D S Pressure = 0.01mm Hg or less Glass glows green fluorescence

Electric discharge tube Anode glow Cathode glow Crookes dark space Cathode rays C D S Pressure = 0.01mm Hg or less Glass glows green fluorescence