skip to main content
OSTI.GOV title logo U.S. Department of Energy
Office of Scientific and Technical Information

Title: Measurement of Asymmetric Optical Pumping of Ions Accelerating in a Magnetic-field Gradient

Abstract

We report observations of asymmetric optical pumping of argon ions accelerating in a magnetic field gradient. The signature is a difference in the laser-induced-fluorescence (LIF) emission amplitude from a pair of Zeeman-split states. A model that reproduces the dependence of the asymmetry on magnetic-field and ion-velocity gradients is described. With the model, the fluorescence intensity ratio provides a new method of measuring ion collisionality. This phenomenon has implications for interpreting stellar plasma spectroscopy data which often exhibit unequal Zeeman state intensities.

Authors:
; ; ; ;
Publication Date:
Research Org.:
Princeton Plasma Physics Lab., Princeton, NJ (US)
Sponsoring Org.:
USDOE Office of Science (SC) (US)
OSTI Identifier:
836151
Report Number(s):
PPPL-4020
TRN: US0500505
DOE Contract Number:  
AC02-76CH03073
Resource Type:
Technical Report
Resource Relation:
Other Information: PBD: 28 Oct 2004
Country of Publication:
United States
Language:
English
Subject:
70 PLASMA PHYSICS AND FUSION TECHNOLOGY; 74 ATOMIC AND MOLECULAR PHYSICS; AMPLITUDES; ARGON IONS; ASYMMETRY; FLUORESCENCE; MAGNETIC FIELDS; OPTICAL PUMPING; PLASMA; SPECTROSCOPY; ATOMIC SPECTRA; PLASMA COLUMN; SPACE PLASMA PHYSICS

Citation Formats

Xuan Sun, Earl Scime, Mahmood Miah, Samuel Cohen, and Frederick Skiff. Measurement of Asymmetric Optical Pumping of Ions Accelerating in a Magnetic-field Gradient. United States: N. p., 2004. Web. doi:10.2172/836151.
Xuan Sun, Earl Scime, Mahmood Miah, Samuel Cohen, & Frederick Skiff. Measurement of Asymmetric Optical Pumping of Ions Accelerating in a Magnetic-field Gradient. United States. doi:10.2172/836151.
Xuan Sun, Earl Scime, Mahmood Miah, Samuel Cohen, and Frederick Skiff. Thu . "Measurement of Asymmetric Optical Pumping of Ions Accelerating in a Magnetic-field Gradient". United States. doi:10.2172/836151. https://www.osti.gov/servlets/purl/836151.
@article{osti_836151,
title = {Measurement of Asymmetric Optical Pumping of Ions Accelerating in a Magnetic-field Gradient},
author = {Xuan Sun and Earl Scime and Mahmood Miah and Samuel Cohen and Frederick Skiff},
abstractNote = {We report observations of asymmetric optical pumping of argon ions accelerating in a magnetic field gradient. The signature is a difference in the laser-induced-fluorescence (LIF) emission amplitude from a pair of Zeeman-split states. A model that reproduces the dependence of the asymmetry on magnetic-field and ion-velocity gradients is described. With the model, the fluorescence intensity ratio provides a new method of measuring ion collisionality. This phenomenon has implications for interpreting stellar plasma spectroscopy data which often exhibit unequal Zeeman state intensities.},
doi = {10.2172/836151},
journal = {},
number = ,
volume = ,
place = {United States},
year = {Thu Oct 28 00:00:00 EDT 2004},
month = {Thu Oct 28 00:00:00 EDT 2004}
}

Technical Report:

Save / Share: