Efficiency of combined cyclotron--[hacek C]erenkov interaction between electrons and electromagnetic fields

Journal Article · Mon Feb 01 04:00:00 EST 1993 · Physics of Fluids B; (United States)

DOI:https://doi.org/10.1063/1.860492· OSTI ID:6829268

Nusinovich, G S; Vlasov, A N ^[1]

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1. Laboratory for Plasma Research, University of Maryland, College Park, Maryland 20742 (United States)

A theory is presented describing the electron cyclotron interaction at frequencies near cutoff, followed by a [hacek C]erenkov interaction region. In such a case, the cyclotron interaction withdraws only the orbital component of electron momentum, while in the [hacek C]erenkov interaction the electrons lose their axial momentum. It is shown that the addition of the [hacek C]erenkov interaction significantly enhances the total electronic efficiency. Since both kinds of operation are relatively insensitive to electron velocity spread, the efficiency of the combined interaction is also rather tolerant to velocity spread. Thus, rather efficient sources of electromagnetic radiation based on poor quality electron beams may be developed.

• OSTI ID: 6829268
• Journal Information: Physics of Fluids B; (United States), Journal Name: Physics of Fluids B; (United States) Vol. 5:2; ISSN 0899-8221; ISSN PFBPEI
• Country of Publication: United States
• Language: English

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AMPLIFIERS
BEAMS
CHERENKOV RADIATION
CYCLOTRON RESONANCE
EFFICIENCY
ELECTROMAGNETIC FIELDS
ELECTROMAGNETIC RADIATION
ELECTRON BEAMS
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ELECTRONS
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EQUIPMENT
FERMIONS
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LEPTONS
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MICROWAVE AMPLIFIERS
MICROWAVE EQUIPMENT
PARTICLE BEAMS
RADIATIONS
RESONANCE