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Cathodes and cathode-heating units

Cathode assemblies are traditionally considered to be the heart of electrovacuum devices. For high-power microwave EVDs, this provision has a special significance due to the fact that the main electrodynamic and operational parameters of devices are in close connection with the parameters of cathode assemblies.

The cathode department of RPE "TORIY" is currently the largest scientific and production unit of such kind in Russia. The cathode department carries out development and delivery of cathode assemblies, cathodes and heaters for nine companies in Russia ("Toriy", "Granit", 'VELT", "ZELTA", "MELZ", "Litiy", "Khromatron", Vladykinsky mechanical plant, "Platan" ).

Low temperature oxide cathodes Heigh temperature oxide cathodes Metallporous cathodes
Cased dimensions, mm 1-200 5-100 1-100
Number of cathodes in cathode-heater unit 1-200 1-200
Working temperature of cathode, °C 750-850 1200-1500 900-1150
Heater Power, W 0,3-500 50-1500 0,7-3000
Current density, A/sm2
Continuous regime 0,1-1,0 0,1-1,0 0,5-10
Pulse regime 1-150 1,5-10 0,5-100
Life time (in real regime), thousand hours 30-100 5-75 0-100
Vacuum, tr 10-6-10-11 10-6-10-11 10-6-10-11
cac-nu

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