Experimental study of a compact P-band coaxial relativistic backward wave oscillator with three periods slow wave structure

Journal Article · Wed Aug 15 04:00:00 EDT 2012 · Physics of Plasmas

DOI:https://doi.org/10.1063/1.4748564· OSTI ID:22086075

Liang, Gao; Baoliang, Qian; Xingjun, Ge; Xiaoping, Zhang; Zhenxing, Jin ^[1]

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1. College of Optoelectric Science and Engineering, National University of Defense Technology, Changsha 410073 (China)

A compact P-band coaxial relativistic backward wave oscillator with three periods slow wave structure was investigated experimentally. The experimental results show that the frequency of the P-band coaxial relativistic backward wave oscillator is 897 MHz and the microwave power is 1.47 GW with an efficiency of about 32% in the case in which the diode voltage is 572 kV, the beam current is 8.0 kA, and the guide magnetic field is about 0.86 T. In addition, the device can generate a 3.14 GW microwave radiation as the guide magnetic field increases to 1.2 T at the diode voltage of 997 kV and the beam current of 15.3 kA. The experimental results are in good agreement with those obtained earlier by numerical simulations.

• OSTI ID: 22086075
• Journal Information: Physics of Plasmas, Journal Name: Physics of Plasmas Journal Issue: 8 Vol. 19; ISSN PHPAEN; ISSN 1070-664X
• Country of Publication: United States
• Language: English

Related Subjects

46 INSTRUMENTATION RELATED TO NUCLEAR SCIENCE AND TECHNOLOGY
70 PLASMA PHYSICS AND FUSION TECHNOLOGY
BEAM CURRENTS
COMPUTERIZED SIMULATION
EFFICIENCY
ELECTRIC POTENTIAL
ELECTRON BEAMS
MAGNETIC FIELDS
MHZ RANGE
MICROWAVE RADIATION
MICROWAVE TUBES
OSCILLATORS
RELATIVISTIC RANGE