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

DE2005836151

Publication Date	2004
Personal Author	Sun, X.; Scime, W.; Miah, M.; Cohen, S.; Skiff, F.
Page Count	24
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.
Keywords	Asymmetry Argon ions Magnetic fields Plasma Optical pumping Amplitudes Spectroscopy Fluorescence
Source Agency	Technical Information Center Oak Ridge Tennessee
Corporate Authors	Princeton Univ., NJ. Plasma Physics Lab.; Department of Energy, Washington, DC.
Supplemental Notes	Sponsored by Department of Energy, Washington, DC.
Document Type	Technical Report
NTIS Issue Number	200518

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

Measurement of Asymmetric Optical Pumping of Ions Accelerating in a Magnetic-field Gradient.
DE2005836151

Publication Date	2004
Personal Author	Sun, X.; Scime, W.; Miah, M.; Cohen, S.; Skiff, F.
Page Count	24
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.
Keywords	Asymmetry Argon ions Magnetic fields Plasma Optical pumping Amplitudes Spectroscopy Fluorescence
Source Agency	Technical Information Center Oak Ridge Tennessee
Corporate Authors	Princeton Univ., NJ. Plasma Physics Lab.; Department of Energy, Washington, DC.
Supplemental Notes	Sponsored by Department of Energy, Washington, DC.
Document Type	Technical Report
NTIS Issue Number	200518