在由75吉赫兹脉冲回旋管辐射加热的简单磁镜磁阱中对氢电子回旋共振（ECR）等离子体的研究。

Study of hydrogen ECR plasma in a simple mirror magnetic trap heated by 75 GHz pulsed gyrotron radiation.

作者信息

Skalyga V A, Izotov I V, Sidorov A V, Golubev S V, Razin S V

机构信息

Federal Research Center "Institute of Applied Physics of the Russian Academy of Sciences" (IAP RAS), 46 Ul'yanova St., 603950 Nizhny Novgorod, Russian Federation.

出版信息

Rev Sci Instrum. 2017 Mar;88(3):033503. doi: 10.1063/1.4978278.

DOI:10.1063/1.4978278

PMID:28372417

Abstract

Plasma of electron cyclotron resonance (ECR) discharge sustained by millimeter wave radiation is widely used for production of ion beams of different kind. The main trend in ECR ion sources development nowadays is an increase of frequency and power of microwave heating. The most advanced systems use gyrotrons in 24-60 GHz frequency range. In previous studies at IAP RAS it was demonstrated that ECR source SMIS 37 (Simple Mirror Ion Source) with 37.5 GHz heating operating in quasigasdynamic regime of plasma confinement is able to produce proton and deuteron beams with ion current density about 700 mA/cm. As the next step of these investigations plasma properties of the discharge sustained by 75 GHz radiation have been studied. Plasma density and electron temperature were determined using spectroscopic and Langmuir probe techniques. It was demonstrated that plasma density could reach values close to 10 cm and that is of great interest for further development of high current ion sources for various applications.

摘要

由毫米波辐射维持的电子回旋共振（ECR）放电等离子体被广泛用于产生各种不同类型的离子束。当前ECR离子源发展的主要趋势是提高微波加热的频率和功率。最先进的系统使用频率范围为24 - 60 GHz的回旋管。在俄罗斯科学院应用物理研究所之前的研究中表明，在等离子体约束的准气体动力学模式下运行的、具有37.5 GHz加热的ECR源SMIS 37（简单磁镜离子源）能够产生离子电流密度约为700 mA/cm²的质子和氘核束。作为这些研究的下一步，对由75 GHz辐射维持的放电的等离子体特性进行了研究。使用光谱和朗缪尔探针技术测定了等离子体密度和电子温度。结果表明，等离子体密度可以达到接近10¹² cm⁻³的值，这对于各种应用的高电流离子源的进一步发展具有重要意义。