Back to Search Start Over

Innovation for measuring the distribution function with nonextensive single electric probe

Authors :
Donghua Xiao
Xingkun Peng
Youlong Yuan
Qilong Cai
Huibin Qiu
Tianyi Hu
Honghui Zhang
Shengfa Wu
Xiaobin Li
Jinming Chang
Yuqing Zhu
Likang Huang
Junjie Wu
Xianyang Zhang
Zhangtian Wang
Jiaheng Li
Sanqiu Liu
Source :
AIP Advances, Vol 11, Iss 8, Pp 085228-085228-6 (2021)
Publication Year :
2021
Publisher :
AIP Publishing LLC, 2021.

Abstract

In the field of plasma diagnosis, the measurement of the distribution function is significant because the distribution function is the basis for the use of plasma kinetic theory and it is the prerequisite for analyzing many physical phenomena, such as Landau damping (wave-particle resonance phenomenon) and ion sheath. Theoretical analysis and a large number of experiments have proved that plasma components do not obey Boltzmann–Gibbs statistics and can be well described by nonextensive statistical mechanics. The field of nonextensive electric probe has also made great progress, and the invention of the nonextensive single electric probes has developed and strengthened the power of plasma diagnostics. The nonextensive electric probe can not only measure the electron nonextensive parameter of plasma that cannot be measured by traditional probes but can also measure more accurate plasma parameters that can also be measured by traditional probes, such as Te, Φp, ne, Φf, and αqFe. However, diagnosing the plasma distribution function by the nonextensive electric probe has not been thoroughly and systematically analyzed and discussed. Here, we show the measurement of the plasma distribution function with a nonextensive single electric probe. This work expands the diagnostic capabilities of the nonextensive single electric probe. We utilize the nonextensive single electric probe theory to analyze the experimental data points of the I–V curve, measure the plasma electron distribution function fvx, and display the distribution curve (figure f-vx), and we also measure the plasma parameters of qFe, Te, Φp, ne, Φf, αqFe, etc. The proposed method provides a new approach to the diagnosis of the plasma distribution function and contributes to a more accurate and comprehensive grasp of plasma, which creates better conditions for us to take advantage of plasma. These initial results illustrate the potential of the nonextensive electric probe in the field of plasma diagnosis and, more generally, in accelerating the progress of fusion-energy science and helping to understand complex physical systems.

Subjects

Subjects :
Physics
QC1-999

Details

Language :
English
ISSN :
21583226
Volume :
11
Issue :
8
Database :
Directory of Open Access Journals
Journal :
AIP Advances
Publication Type :
Academic Journal
Accession number :
edsdoj.7ed4c1830744924b233a197f2f73fe7
Document Type :
article
Full Text :
https://doi.org/10.1063/5.0063272