Improved power capacity in a high efficiency klystron-like relativistic backward wave oscillator by distributed energy extraction

Journal Article · Sat Dec 07 00:00:00 EST 2013 · Journal of Applied Physics

DOI:https://doi.org/10.1063/1.4840956· OSTI ID:22258698

Xiao, Renzhen; Chen, Changhua; Cao, Yibing; Sun, Jun ^[1]

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1. Science and Technology on High Power Microwave Laboratory, Northwest Institute of Nuclear Technology, Xi'an 710024 (China)

With the efficiency increase of a klystron-like relativistic backward wave oscillator, the maximum axial electric field and harmonic current simultaneously appear at the end of the beam-wave interaction region, leading to a highly centralized energy exchange in the dual-cavity extractor and a very high electric field on the cavity surface. Thus, we present a method of distributed energy extraction in this kind of devices. Particle-in-cell simulations show that with the microwave power of 5.1 GW and efficiency of 70%, the maximum axial electric field is decreased from 2.26 MV/cm to 1.28 MV/cm, indicating a threefold increase in the power capacity.

• OSTI ID: 22258698
• Journal Information: Journal of Applied Physics, Vol. 114, Issue 21; Other Information: (c) 2013 AIP Publishing LLC; Country of input: International Atomic Energy Agency (IAEA); ISSN 0021-8979
• Country of Publication: United States
• Language: English

Related Subjects

71 CLASSICAL AND QUANTUM MECHANICS
GENERAL PHYSICS
CAPACITY
ELECTRIC FIELDS
ENERGY TRANSFER
EXTRACTION
KLYSTRONS
MICROWAVE RADIATION
OSCILLATORS
RELATIVISTIC RANGE
SIMULATION