Simple Tight Aspect Ratio Machine Assembly to Study ECR-Produced Magnetized Toroidal Plasma

IF 1.3 4区物理与天体物理 Q3 PHYSICS, FLUIDS & PLASMAS

IEEE Transactions on Plasma Science Pub Date : 2024-08-08 DOI:10.1109/TPS.2024.3435375

Tulchhi Ram;Jagabandhu Kumar;Promod Kumar Sharma;Raju Daniel;P. Parmar;Kirankumar K. Ambulkar;A. L. Thakur;A. Kundu;Vismay Raulji;B. Arambhadiya;Abhijeet Kumar;Praveenlal Edappala;Pramila Gautam;H. D. Mandliya;Urmil Thaker;Supriya A. Nair

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Abstract

This article investigates the influence of toroidal characteristics on vertical charge separation in electron cyclotron resonance (ECR)-produced plasma within a toroidal plasma device featuring a tight aspect ratio and higher toroidicity. Conducting experiments in the simple tight aspect ratio machine assembly (STARMA), the study measures the vertical electric field induced by curvature and gradient drift to comprehend the effect and characteristics of vertical charge separation. Preliminary results from STARMA, distinguished by a high toroidicity and a curvature (

$\kappa $

) of 9.6 m−1, reveal a significant impact of toroidal field (TF) characteristics on charge separation in the vertical direction. The article presents initial experimental findings, emphasizing the temperature and density profiles of ECR-produced plasma within the device, possible O-X mode conversion, and charge separation due to gradient and curvature of magnetic field. The distinctive design and features of device provide a unique platform for in-depth investigations into plasma behavior, contributing to advancements in controlled plasma systems, with potential applications in fusion research and material processing.

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研究 ECR 生产的磁化环形等离子体的简单高宽比机器组件

本文研究了环形特征对电子回旋共振（ECR）产生的等离子体中垂直电荷分离的影响，该等离子体是在具有紧凑长宽比和较高环形度的环形等离子体装置中产生的。该研究在简单紧凑长宽比机器组件（STARMA）中进行实验，测量曲率和梯度漂移引起的垂直电场，以了解垂直电荷分离的影响和特征。STARMA 具有高环形度和 9.6 m-1 的曲率（$\kappa $），其初步结果表明环形场 (TF) 特性对垂直方向的电荷分离具有显著影响。文章介绍了初步的实验结果，强调了装置内 ECR 产生的等离子体的温度和密度曲线、可能的 O-X 模式转换以及磁场梯度和曲率导致的电荷分离。该装置的独特设计和功能为深入研究等离子体行为提供了一个独特的平台，有助于推动可控等离子体系统的发展，并有可能应用于核聚变研究和材料加工。

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

IEEE Transactions on Plasma Science 物理-物理：流体与等离子体

CiteScore

3.00

自引率

20.00%

发文量

538

审稿时长

3.8 months

期刊介绍： The scope covers all aspects of the theory and application of plasma science. It includes the following areas: magnetohydrodynamics; thermionics and plasma diodes; basic plasma phenomena; gaseous electronics; microwave/plasma interaction; electron, ion, and plasma sources; space plasmas; intense electron and ion beams; laser-plasma interactions; plasma diagnostics; plasma chemistry and processing; solid-state plasmas; plasma heating; plasma for controlled fusion research; high energy density plasmas; industrial/commercial applications of plasma physics; plasma waves and instabilities; and high power microwave and submillimeter wave generation.