Gaseous electric discharge tube having a coaxial, hollow cathode

Details Gaseous electric discharge tube having a coaxial, hollow cathode Gaseous electric discharge tube having a coaxial, hollow cathode

1974-10-01

1976-01-20

Demeo, Palmer C.

Electric lamp and discharge devices

With magnetic device

Field transverse to discharge

313186, 313207, 313209, 313318, 331 945D, H01J 61067, H01J 6112, H01S 302

Patent

active

039341674

ABSTRACT:
In an electric discharge tube, for example, for an argon ion laser, the cathode is formed by a double-walled tube of tantalum or tungsten, the inner tube of which is the shorter. Under the influence of the discharge in the order of 100 A, said inner tube starts glowing. An auxiliary anode may be present near the end of the cathode.

REFERENCES:
patent: 1877716 (1932-09-01), Claude
patent: 3390297 (1968-06-01), Vollmer
patent: 3563655 (1971-02-01), Johnson
patent: 3745483 (1973-07-01), Huchital et al.

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