Cold cathode construction

Details Cold cathode construction Cold cathode construction

1982-03-12

1984-10-16

Davie, James W.

Coherent light generators

Particular pumping means

Electrical

372 61, H01S 302

Patent

active

044779089

ABSTRACT:
A cold cathode gas discharge apparatus, of the kind in which ionized species are driven against a cathode by an electrical field to eject electrons from the cathode and to produce a discharge within a gas discharge confinement tube, has a cathode constructed for balancing the trapping rate and releasing rate of gas particles in the cathode to maintain a substantially constant gas pressure during the operating life of the gas discharge apparatus. The cathode has an active surface which forms a substantially reentrant cavity about the end of the gas discharge confinement tube.

REFERENCES:
patent: 4007431 (1977-02-01), Abbink et al.
patent: 4158821 (1979-06-01), Bresman

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