Universal main magnetic focus ion source: A new tool for laboratory research of astrophysics and Tokamak microplasma

International Conference on Particle Physics and Astrophysics

物理学;天文学

Ovsyannikov, V.P.^1 ; Nefiodov, A.V.^2 ; Levin, A.A.^3

MaMFIS Group, Hochschulstrasse 13, Dresden

D-01069, Germany^1

Petersburg Nuclear Physics Institute, Gatchina, St. Petersburg

188300, Russia^2

MaMFIS Laboratory, Shatelen Street 26A, St. Petersburg

194021, Russia^3

关键词: Electron beam ion source;    Electron energies;    Electron number densities;    Incident energy;    Laboratory astrophysics;    Micro-plasmas;    Number density;    University laboratories;   

Others  :  https://iopscience.iop.org/article/10.1088/1742-6596/798/1/012170/pdf
DOI  :  10.1088/1742-6596/798/1/012170

学科分类：天文学(综合)

来源: IOP

【 摘 要 】

A novel room-temperature ion source for the production of atomic ions in electron beam within wide ranges of electron energy and current density is developed. The device can operate both as conventional Electron Beam Ion Source/Trap (EBIS/T) and novel Main Magnetic Focus Ion Source. The ion source is suitable for generation of the low-, medium- and high-density microplasma in steady state, which can be employed for investigation of a wide range of physical problems in ordinary university laboratory, in particular, for microplasma simulations relevant to astrophysics and ITER reactor. For the electron beam characterized by the incident energy Ee= 10 keV, the current density je∼ 20 kA/cm2and the number density ne∼ 2 × 1013cm-3were achieved experimentally. For Ee∼ 60 keV, the value of electron number density ne∼ 1014cm-3is feasible. The efficiency of the novel ion source for laboratory astrophysics significantly exceeds that of other existing warm and superconducting EBITs.