New improved formulas for magnetron characteristic curves

Riyopoulos, S.

doi:10.1109/27.700823

Cited by 6 publications

(1 citation statement)

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“…Riyopoulos has also used the GC approximation to study the initiation of the instability of a classical Brillouin sheath 7,24 which was then confirmed also in the cold-fluid approach. 14 He has also showed that in order to fit experimental data, it is necessary for the electron density at the diocotron resonance to be taken on the order of one-half of the maximum Brillouin value 8,25 with the density in the spokes being on the same order of magnitude. This is indeed what happens in the self-consistent cold-fluid theory [18][19][20] as one can also see from figures given below.…”

Section: Introductionmentioning

confidence: 99%

Drift resonance in high density non-neutral plasmas

Kaup

2006

Physics of Plasmas

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Theoretical studies of the operation of crossed-field electron vacuum devices such as magnetrons and crossed-field amplifiers (CFA) have usually centered on their initial growth, taking this as an indication of their operating modes. In such an analysis one solves the equations for the density profile, the operating frequency, the growth rate, and other features of these devices. What one really obtains then are only the conditions for the device to turn on. The dominant interaction in this stage is a Rayleigh-type instability which initiates a quasilinear diffusion process whereby the electron density profile redistributes itself into a profile which will be in equilibrium with the ponderomotive-like forces produced by the growing rf fields. Eventually the rf fields will saturate and an operating device will settle into a stationary operating regime. This stage of a device’s operation is called the “saturation stage.” This latter stage involves a different set of physical interactions from the initiation stage. No longer is there a growth rate; rather the rf amplitudes have saturated and as a result, the ponderomotive-like forces have also vanished along with the quasilinear diffusion. In this saturation stage, we find that new rf modes appear. In fact, there are a total of five rf modes, two of which are the usual slow modes of the initiation stage, and three of which have fast oscillations in the vertical direction. One fast mode corresponds to a drift plasma oscillation while the other two fast modes are drift cyclotron modes. In this paper, we will describe how the drift plasma oscillation interacts and couples with the slow rf modes at the diocotron resonance.

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Section: Introductionmentioning

confidence: 99%

Drift resonance in high density non-neutral plasmas

Kaup

2006

Physics of Plasmas

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Magnetrons

Osepchuk¹,

Ruden²

2005

Encyclopedia of RF and Microwave Engineering

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The magnetron has survived in an era when most electron tubes have been replaced by solid‐state devices in modern electronic systems. A wide spectrum of related devices are being developed for specialized applications. These include crossed‐field amplifiers, voltage‐tuned magnetrons, beacon magnetrons, and relativistic magnetrons. Applications range from the classical radar through industrial heating to microwave weapons. Future applications remain unpredictable, but many are being explored. Advances in computer modeling will eventually produce success.

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Microwave and RF Vacuum Electronic Power Sources

Carter

2018

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New improved formulas for magnetron characteristic curves

Cited by 6 publications

References 12 publications

Drift resonance in high density non-neutral plasmas

Drift resonance in high density non-neutral plasmas

Magnetrons

Microwave and RF Vacuum Electronic Power Sources

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