Spatial Synchronization of TE-Modes in a Slit-Type Gyrotron Cavity

Rozental, R. M.; Danilov, Yu. Yu.; Leontyev, A. N.; Malkin, A. M.; Shchegolkov, Dmitry; Тараканов, В. П.

doi:10.1109/ted.2022.3146218

Cited by 15 publications

(2 citation statements)

References 44 publications

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“…The PiC method for the kinetic description of plasma is implemented in the code. Over the past three decades, numerous problems of non-stationary engineering electrophysics and electrodynamics have been solved with the help of the code KARAT (see [2,3,[39][40][41][42][43][44][45][46][47][48][49][50][51] and references therein). In the present work, the results of a numerical simulation within the framework of the code KARAT of the key physical processes leading to the aneutronic proton-boron fusion were presented in detail and discussed both for laser-driven plasma and for plasma under oscillatory confinement.…”

Section: Discussionmentioning

confidence: 99%

Fully Electromagnetic Code KARAT Applied to the Problem of Aneutronic Proton–Boron Fusion

Andreev,

Kurilenkov,

Oginov

2023

Mathematics

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In this paper, the full electromagnetic code KARAT is presented in detail, the scope of which is a computational experiment in applied problems of engineering electrodynamics. The basis of the physical model used is Maxwell’s equations together with boundary conditions for fields, as well as material equations linking currents with field strengths. The Particle in Cell (PiC) method for the kinetic description of plasma is implemented in the code. A unique feature of the code KARAT is the possibility of the self-consistent modeling of inelastic processes, in particular, nuclear reactions, at each time step in the process of electrodynamic calculation. The aneutronic proton–boron nuclear reaction, accompanied by the release of almost only α-particles, is extremely in demand in medicine and, perhaps, in the future, will form the basis for obtaining “clean” nuclear energy. The results of a numerical simulation within the framework of the code KARAT of the key physical processes leading to the proton–boron fusion are presented and discussed both for laser-driven plasma and for a plasma oscillatory confinement scheme.

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Section: Discussionmentioning

confidence: 99%

Fully Electromagnetic Code KARAT Applied to the Problem of Aneutronic Proton–Boron Fusion

Andreev,

Kurilenkov,

Oginov

2023

Mathematics

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“…Thus, the simulation results demonstrate the possibility of achieving in relativistic gyrotrons a sub-megawatt power of radiation in the 150−180 GHz frequency range at the generation at the fifth and sixth cyclotron harmonics with a multiple decrease in the magnetic field. Notice that at present relativistic gyrotrons with the output power of about 80 MW in the range of 300 GHz are being developed [13]. In the regime of frequency multiplication, such gyrotrons enable counting on obtaining radiation power of hundreds of kilowatts at frequencies > 1.5 THz.…”

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confidence: 99%

Excitation of high cyclotron harmonics in a high-current relativistic gyrotron in the frequency multiplication regime

A.N

R.M.

N.S.

et al. 2022

Technical Physics Letters

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Using the averaged equations supplemented with 3D particle-in-cells simulation methods, we have studied the frequency multiplication regime in a high-current relativistic gyrotron. The paper shows that the ratio between the output power of the higher (fifth or sixth) harmonics and that of the fundamental cyclotron resonance may be of about 0.1-0.3%. Accordingly, the nonlinear transformation coefficient is several orders of magnitude higher than the values achievable in gyrotrons with weakly-relativistic electron beams. Keywords: gyrotron, harmonic excitation, high-current relativistic electron beams.

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