Efficiency of a Plasma Maser with a High-Current Relativistic Electron Beam

IF 1 4区物理与天体物理 Q4 PHYSICS, FLUIDS & PLASMAS

Plasma Physics Reports Pub Date : 2026-09-27 DOI:10.1134/S1063780X26601264

S. E. Andreev, I. L. Bogdankevich, O. T. Loza

引用次数: 0

Abstract

The Cherenkov interaction of a relativistic electron beam with a magnetized, spatially confined plasma in a waveguide is numerically simulated using the KARAT code. This interaction underlies the operation of plasma masers, which are sources of broadband high-power microwave radiation. The study aims to verify the theoretical assumption that the radiation efficiency reaches a maximum when the ratio of the electron beam current to the maximum vacuum transport current is close to unity. However, the numerical simulation reveals that even doubling the current ratio does not cause substantial changes in radiation efficiency.

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高电流相对论电子束等离子体脉泽的效率

使用KARAT代码对相对论电子束与波导中磁化的空间受限等离子体的切伦科夫相互作用进行了数值模拟。等离子体脉泽是宽带高功率微波辐射的来源，这种相互作用是等离子体脉泽工作的基础。本研究旨在验证当电子束电流与最大真空输运电流之比接近于1时，辐射效率达到最大值的理论假设。然而，数值模拟表明，即使电流比加倍也不会引起辐射效率的实质性变化。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Plasma Physics Reports 物理-物理：流体与等离子体

CiteScore

1.90

自引率

36.40%

发文量

104

审稿时长

4-8 weeks

期刊介绍： Plasma Physics Reports is a peer reviewed journal devoted to plasma physics. The journal covers the following topics: high-temperature plasma physics related to the problem of controlled nuclear fusion based on magnetic and inertial confinement; physics of cosmic plasma, including magnetosphere plasma, sun and stellar plasma, etc.; gas discharge plasma and plasma generated by laser and particle beams. The journal also publishes papers on such related topics as plasma electronics, generation of radiation in plasma, and plasma diagnostics. As well as other original communications, the journal publishes topical reviews and conference proceedings.