Three-electrode low pressure discharge apparatus and method for uniform ionization of gaseous media
Uniform, transverse electrical discharges are produced in gaseous media without the necessity of switching the main discharge voltage with an external device which carries the entire discharge current. A three-electrode low pressure discharge tube is charged across its anode and cathode to below breakdown voltage using a dc voltage source. An array of resistors or capacitors can be made to discharge to the wire screen anode by means of a low energy high voltage pulse circuit producing sufficient preionization in the region between the anode and cathode to initiate and control the main discharge. The invention has been demonstrated to be useful as a CO[sub 2] laser oscillator and pulse-smoother. It can be reliably operated in the sealed-off mode. 2 figs.
- Assignee:
- PTO; EDB-94-125355
- Patent Number(s):
- US 4412333; A
- Application Number:
- PPN: US 6-198028
- OSTI ID:
- 7245264
- Resource Relation:
- Patent File Date: 17 Oct 1980
- Country of Publication:
- United States
- Language:
- English
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