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Study of a plasma-filled X-band backward wave oscillator (1992)

Zhai, X. ; Garate, E. ; Prohaska, R. ; [et al.]

Woodbury, NY : American Institute of Physics (AIP)

Applied Physics Letters 60 (1992), S. 2332-2334

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Details

ISSN: 1077-3118

Source: AIP Digital Archive

Topics: Physics

Notes: We present experimental studies of a plasma-filled X-band backward wave oscillator (BWO). Depending on the background gas pressure, microwave frequency upshifts of up to 1 GHz appeared along with an enhancement of a factor of 7 in the total microwave power emission. The bandwidth of the microwave emission increased from ≤0.5 to 2 GHz when the BWO was working at the rf power enhancement pressure region. The rf power enhancement appeared over a much wider pressure range in a high beam current case (10–100 mT for 3 kA) as compared to a lower beam case (80–115 mT for 1.6 kA). The plasma-filled BWO has higher power output compared to the vacuum BWO over a broader region of magnetic guide field strength.

Type of Medium: Electronic Resource

URL: http://dx.doi.org/10.1063/1.107017

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