Plasma-based multistage virtual cathode radiation

Journal Article · Thu Dec 15 00:00:00 EST 2011 · Physics of Plasmas

DOI:https://doi.org/10.1063/1.3672059· OSTI ID:22047141

Dong, Su; Changjian, Tang ^[1]

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1. Key Laboratory of High Energy Density Physics and Technology, Ministry of Education, Sichuan University, Chengdu 610064 (China)

A plasma-based multistage virtual cathode radiation is proposed. Multistage virtual cathode can be formed as an electron beam passes through a high dense ion background. The reflected electrons can be coupled with transverse magnetic wave, and electromagnetic radiation is detected. Unlike the traditional virtual cathode devices, the beam current can be decreased greatly due to the effect of ions, and single mode operation can be achieved by adjusting the beam density. Besides, the radiation frequency, which is proportional to the beam density, covers from 10 to 100 GHz. The output power flux density reaches a magnitude of GWm{sup -2}.

• OSTI ID: 22047141
• Journal Information: Physics of Plasmas, Vol. 18, Issue 12; Other Information: (c) 2011 American Institute of Physics; Country of input: International Atomic Energy Agency (IAEA); ISSN 1070-664X
• Country of Publication: United States
• Language: English

Related Subjects

70 PLASMA PHYSICS AND FUSION TECHNOLOGY
43 PARTICLE ACCELERATORS
BEAM CURRENTS
BEAM-PLASMA SYSTEMS
CATHODES
ELECTRON BEAMS
ELECTRONS
FLUX DENSITY
GHZ RANGE
ION DENSITY
IONS
MICROWAVE RADIATION
PLASMA
PLASMA DENSITY