A comparison among optical emission spectroscopic methods of determining electron temperature in low pressure argon plasmas |
| |
Authors: | Niu Tian-Ye Cao Jin-Xiang Liu Lei Liu Jin-Ying Wang Yan Wang Liang and Lv You |
| |
Institution: | Department of Modern Physics, University of Science and Technology of China, Hefei 230026, China; Chinese Academy of Science Key Laboratory of Basic Plasma Physics, Hefei 230026, China |
| |
Abstract: | In this article, four kinds of optical emission spectroscopic
methods of determining electron temperature are used to
investigate the relationship between electron temperature and
pressure in the cylindrical plasmas of dc glow discharges at low
pressures in laboratory by measuring the relative intensities of
ArI lines at various pressures. These methods are developed
respectively on the basis of the Fermi--Dirac model, corona
model, and two kinds of electron collision cross section models
according to the kinetic analysis. Their theoretical bases and
the conditions to which they are applicable are reviewed, and
their calculation results and fitting errors are compared with
each other. The investigation has indicated that the electron
temperatures obtained by the four methods become consistent with
each other when the pressure increases in the low pressure argon
plasmas. |
| |
Keywords: | plasma diagnostics gas
discharge optic emission spectroscopy electron temperature |
本文献已被 维普 等数据库收录! |
| 点击此处可从《中国物理 B》浏览原始摘要信息 |
| 点击此处可从《中国物理 B》下载免费的PDF全文 |
|