Measurements of Stark-broadened Balmer. cap alpha. and. gamma. lines of He II in dense plasmas
Journal Article
·
· Phys. Rev. A; (United States)
We have measured profiles of optically thin Balmer ..cap alpha.. and ..gamma.. lines of He II at 164 and 108.5 nm in a homogeneous hydrogen plasma using a microchannel-plate detector. The electron density of the plasma is between 5 x 10/sup 23/ and 8 x 10/sup 23/ m/sup -3/ at temperatures of about 10 eV. The measured line profiles and full widths at half maximum are compared with various calculations and measurements. We find agreement for the Balmer ..cap alpha.. line within the experimental errors of approximately 25%. The Balmer ..gamma.. line is less broadened than expected from the calculation of Kepple, as found in two earlier experiments.
- Research Organization:
- Institut fuer Experimentalphysik V, Ruhr-Universitaet Bochum, Postfach 102148, D-4630 Bochum 1, West Germany
- OSTI ID:
- 5825415
- Journal Information:
- Phys. Rev. A; (United States), Journal Name: Phys. Rev. A; (United States) Vol. 36:12; ISSN PLRAA
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
640302 -- Atomic
Molecular & Chemical Physics-- Atomic & Molecular Properties & Theory
70 PLASMA PHYSICS AND FUSION TECHNOLOGY
700102* -- Fusion Energy-- Plasma Research-- Diagnostics
74 ATOMIC AND MOLECULAR PHYSICS
BALMER LINES
CHARGED PARTICLES
EMISSION SPECTRA
HELIUM IONS
IONS
LINE BROADENING
LINEAR PINCH DEVICES
OPEN PLASMA DEVICES
PINCH DEVICES
PLASMA
PLASMA DIAGNOSTICS
SPECTRA
STARK EFFECT
THERMONUCLEAR DEVICES
Molecular & Chemical Physics-- Atomic & Molecular Properties & Theory
70 PLASMA PHYSICS AND FUSION TECHNOLOGY
700102* -- Fusion Energy-- Plasma Research-- Diagnostics
74 ATOMIC AND MOLECULAR PHYSICS
BALMER LINES
CHARGED PARTICLES
EMISSION SPECTRA
HELIUM IONS
IONS
LINE BROADENING
LINEAR PINCH DEVICES
OPEN PLASMA DEVICES
PINCH DEVICES
PLASMA
PLASMA DIAGNOSTICS
SPECTRA
STARK EFFECT
THERMONUCLEAR DEVICES