Resonance shift in relativistic traveling wave amplifiers

Journal Article · Mon Apr 01 04:00:00 EST 1996 · Physical Review. E, Statistical Physics, Plasmas, Fluids, and Related Interdisciplinary Topics

DOI:https://doi.org/10.1103/PhysRevE.53.4229· OSTI ID:434621

Naqvi, S A; Kerslick, G S; Nation, J A ^[1]; Schaechter, L ^[2]

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1. School of Electrical Engineering & Laboratory of Plasma Studies, Cornell University, Ithaca, New York 14853 (United States)
2. Department of Electrical Engineering, Technion--Israel Institute of Technology, Haifa 32000 (Israel)

We examine analytically the linear operation of relativistic traveling wave tube amplifiers. In this regime it is found that the maximum growth rate occurs at a beam velocity below that expected on the basis of resonance with the cold dispersion relation of the slow wave structure. The maximum growth rate can be much larger than that at the resonance condition. These results have significance when extending Pierce{close_quote}s theory to traveling wave amplifiers driven by relativistic electron beams. {copyright} {ital 1996 The American Physical Society.}

• OSTI ID: 434621
• Journal Information: Physical Review. E, Statistical Physics, Plasmas, Fluids, and Related Interdisciplinary Topics, Journal Name: Physical Review. E, Statistical Physics, Plasmas, Fluids, and Related Interdisciplinary Topics Journal Issue: 4 Vol. 53; ISSN 1063-651X; ISSN PLEEE8
• Country of Publication: United States
• Language: English

Related Subjects

43 PARTICLE ACCELERATORS
AMPLIFIERS
ELECTRON BEAMS
MICROWAVE RADIATION
PIERCE INSTABILITY
POWER RANGE 01-10 MW
RADIATION SOURCES
RELATIVISTIC RANGE
RESONANCE
TRAVELLING WAVE TUBES