Journal of the Physical Society of Japan
Online ISSN : 1347-4073
Print ISSN : 0031-9015
ISSN-L : 0031-9015
Effect of Beam Energy Spread on Radiation Intensity in a High-Power Backward Wave Oscillator with Finite Length
Tsuguhiro WatanabeKazuo OguraKazuo MinamiMd. Mortuza Ali
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1992 年 61 巻 4 号 p. 1136-1140

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Numerical analysis for radiation level in a high-power backward wave oscillator with a finite-length slow-wave structure with end reflections has been made using an algorithm called the higher-order implicit difference method (HIDM). Spatial and temporal evolutions of a small localized disturbance in an RF field are followed by relativistic fluid equations and Maxwell equations. The radiation intensity of the oscillation decreases substantially with increasing energy spread beyond 10% of the beam.
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