A 500 MW, 1 [mu]s pulse length, high current relativistic klystron

Journal Article · Sat Oct 01 04:00:00 EDT 1994 · IEEE Transactions on Plasma Science (Institute of Electrical and Electronics Engineers); (United States)

DOI:https://doi.org/10.1109/27.338290· OSTI ID:6797467

Fazio, M V; Haynes, W B; Carlsten, B E; Stringfield, R M ^[1]

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1. Los Alamos National Lab., NM (United States)

This paper describes the experimental development of a long pulse high current relativistic klystron amplifier (RKA). The desired performance parameters are 1 GW output power and 1 [mu]s pulse length with an operating frequency of 1.3 GHz. Peak powers approaching 500 MW have been achieved in pulses of 1 [mu]s nominal baseline-to-baseline duration. The half power pulse width is 0.5 [mu]s. These pulses contain an energy of about 160 J. RF output rises linearly in concert with the beam current pulse, and terminates abruptly just before the highest part of the pulsed voltage curve is reached. A possible explanation, not yet experimentally confirmed, for the premature termination of the RF pulse is an output cavity gap voltage that is too high, causing electron reflection at the gap and RF breakdown across the gap. A new output cavity has been designed with a much lower shunt impedance and a loaded Q of 4.

• OSTI ID: 6797467
• Journal Information: IEEE Transactions on Plasma Science (Institute of Electrical and Electronics Engineers); (United States), Journal Name: IEEE Transactions on Plasma Science (Institute of Electrical and Electronics Engineers); (United States) Vol. 22:5; ISSN ITPSBD; ISSN 0093-3813
• Country of Publication: United States
• Language: English

Related Subjects

42 ENGINEERING
426000* -- Engineering-- Components
Electron Devices & Circuits-- (1990-)
BEAM BUNCHING
BEAM DYNAMICS
CAVITY RESONATORS
DATA
DESIGN
ELECTRON TUBES
ELECTRONIC EQUIPMENT
ENERGY RANGE
EQUIPMENT
EXPERIMENTAL DATA
INFORMATION
KLYSTRONS
MICROWAVE EQUIPMENT
MICROWAVE TUBES
NUMERICAL DATA
PERFORMANCE
RELATIVISTIC RANGE
RESONATORS