Expand this Topic clickable element to expand a topic
Skip to content
Optica Publishing Group

Electron density, temperature, and local thermodynamic equilibrium in low-voltage low-current break arcs: Magnesium

Not Accessible

Your library or personal account may give you access

Abstract

Optical emission from low-voltage (9.5 V) low-current (<2 A) magnesium break arcs in an argon atmosphere has been studied. A straight-line plot of log (Iλ3/gf) vs Eu, the upper-state energy, for several transitions yields an arc temperature of 6400 °K. Stark-broadened linewidths for ten optical transitions allowed the electron density to be determined as 5.4 ± 2 × 1016 cm−3 for a 1 A magnesium arc. A comparison of these data with theoretical predictions of Griem for an optically thick system suggests that electron densities are adequate to support local thermodynamics equilibrium.

© 1977 Optical Society of America

Full Article  |  PDF Article
More Like This
Measurement of the Transition Probability of the O i Multiplet at 6157 A

W. L. Wiese and J. B. Shumaker
J. Opt. Soc. Am. 51(9) 937-942 (1961)

Characterization of local thermodynamic equilibrium in a laser-induced aluminum alloy plasma

Yong Zhang, Zhenyang Zhao, Tao Xu, GuangHui Niu, Ying Liu, and Yixiang Duan
Appl. Opt. 55(10) 2741-2747 (2016)

Short-wavelength laser calculations for electron pumping in carbonlike and heliumlike ions

L. J. Palumbo and R. C. Elton
J. Opt. Soc. Am. 67(4) 480-488 (1977)

Cited By

You do not have subscription access to this journal. Cited by links are available to subscribers only. You may subscribe either as an Optica member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access Optica Member Subscription

Figures (3)

You do not have subscription access to this journal. Figure files are available to subscribers only. You may subscribe either as an Optica member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access Optica Member Subscription

Tables (2)

You do not have subscription access to this journal. Article tables are available to subscribers only. You may subscribe either as an Optica member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access Optica Member Subscription

Equations (8)

You do not have subscription access to this journal. Equations are available to subscribers only. You may subscribe either as an Optica member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access Optica Member Subscription

Select as filters


Select Topics Cancel
© Copyright 2024 | Optica Publishing Group. All Rights Reserved