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High Power Crossed-Field Amplifier for Material Processing

Published online by Cambridge University Press:  15 February 2011

M. S. Worthington  and
Guilford R. MacPhail
M. S. Worthington
Affiliation:
Litton Systems, Inc., Electron Devices Division, 1035 Westminster Drive, Williamsport, PA 17701–3911
Guilford R. MacPhail
Affiliation:
Litton Systems, Inc., Electron Devices Division, 1035 Westminster Drive, Williamsport, PA 17701–3911
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Abstract

The use of microwave energy for industrial processing applications has been ongoing since the early 1950's. A number of high power tubes were developed in the mid-1960's at 805, 915 and 2,450 MHz for industrial uses. One super power crossed-field amplifier (CFA), the QKS1262, was available in either 50 or 100 kW continuous wave (CW) format. This CFA was designed with a platinum emitter which was pulse started with 100 W average power. The CFA operates at ∼20 kV at 5 amps (50 kW - CW output) or 10 amps (100 kW - CW output/65% efficiency).

This paper will describe the operating characteristics of the QKS1262 and the options in design to attain high power with high efficiency and long life (25,000 hours).

Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 347: Symposium O – Microwave Processing of Materials IV , 1994 , 131
Copyright
Copyright © Materials Research Society 1994

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References

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