HUSCAP logo Hokkaido Univ. logo

Hokkaido University Collection of Scholarly and Academic Papers >
Graduate School of Engineering / Faculty of Engineering >
Peer-reviewed Journal Articles, etc >

Electron Temperatures and Electron Densities in Microwave Helium Discharges with Pressures Higher than 0.1 MPa

Files in This Item:
Thomson_high_pressure_revised2.pdf366.56 kBPDFView/Open
Please use this identifier to cite or link to this item:

Title: Electron Temperatures and Electron Densities in Microwave Helium Discharges with Pressures Higher than 0.1 MPa
Authors: Sasaki, K. Browse this author →KAKEN DB
Soma, S. Browse this author
Akashi, H. Browse this author
ElSabbagh, M. Browse this author
Ikeda, Y. Browse this author
Keywords: Electron temperature
electron density
multi-atmospheric-pressure plasma
Thomson scattering
plasma-assisted combustion
Issue Date: Sep-2015
Publisher: Wiley-Blackwell
Journal Title: Contributions to plasma physics
Volume: 55
Issue: 8
Start Page: 563
End Page: 569
Publisher DOI: 10.1002/ctpp.201500033
Abstract: We adopted laser Thomson scattering for measuring the electron density and the electron temperature of microwave plasmas produced in helium at the pressures higher than the atmospheric pressure. The electron density decreased while we observed the increase in the electron temperature with the pressure. These are reasonable results by considering the decrease in the reduced electric field, the dominant loss of electrons via three-body recombination with helium as the third body, and the production of electrons with medium energy via heavy particle collisions at the high gas pressure. The temporal variation of the electron temperature had the rise and the fall time constants of approximately 10 ns. The rapid heating and cooling of the electron temperature are due to the fast energy transfer from electrons to helium because of the high collision frequency in the high-pressure discharge.
Rights: This is the peer reviewed version of the following article: Contributions to Plasma Physics 55(8) 563-569, which has been published in final form at This article may be used for non-commercial purposes in accordance with Wiley Terms and Conditions for Self-Archiving.
Type: article (author version)
Appears in Collections:工学院・工学研究院 (Graduate School of Engineering / Faculty of Engineering) > 雑誌発表論文等 (Peer-reviewed Journal Articles, etc)

Submitter: 佐々木 浩一

Export metadata:

OAI-PMH ( junii2 , jpcoar_1.0 )

MathJax is now OFF:


 - Hokkaido University