Experimental V-I characteristics for the post ignition/pre arc phase in a vortex water wall high pressure argon arc lamp
- Univ. of Toronto, Ontario (Canada). Dept. of Electrical and Computer Engineering
Vortex water wall high pressure argon arc lamps are used to generate intense light and are capable of operating at radiative efficiencies greater than 50%. These lamps are being considered for use in a pulsed dc mode of operation in the next generation of rapid thermal processing applications. The design of an ignition circuit which can reliably trigger and generate a sustainable arc current is a major task. To this end an experimental circuit has been devised to investigate the post breakdown and pre arc phase. Transient V-I characteristics taken for a number of operating conditions indicate that the breakdown process consists of a prethermionic electrode phase and a non LTE positive column phase. The experimental findings have been used to derive a set of design guidelines for the ignition and sustaining current power supply.
- OSTI ID:
- 423077
- Report Number(s):
- CONF-960634-; TRN: IM9707%%384
- Resource Relation:
- Conference: 1996 IEEE international conference on plasma science, Boston, MA (United States), 3-5 Jun 1996; Other Information: PBD: 1996; Related Information: Is Part Of IEEE conference record -- Abstracts: 1996 IEEE international conference on plasma science; PB: 324 p.
- Country of Publication:
- United States
- Language:
- English
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