Cathode and gas discharge tube employing said cathode

摘要

A cathode (1) takes the form of a sintered body containing a high melting point metal or a mixture of such metals and a material with emission activity. The latter contains caesium aluminosilicate or rubidium aluminosilicate. The gas discharge tube employs this cathode (1), which is accommodated in a bulb (2) also containing an anode (3).
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