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Atomic Hydrogen and Deuterium Zeeman Spectra of Balmer‐ α and‐ β Lines Observed from a Plücker Tube Discharge
Author(s) -
Chu C.C.,
Chu J.Hey.
Publication year - 2000
Publication title -
contributions to plasma physics
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.531
H-Index - 47
eISSN - 1521-3986
pISSN - 0863-1042
DOI - 10.1002/1521-3986(200009)40:5/6<597::aid-ctpp597>3.0.co;2-i
Subject(s) - zeeman effect , balmer series , spectral line , atomic physics , hydrogen , deuterium , spectroscopy , spectrometer , stark effect , physics , materials science , magnetic field , emission spectrum , optics , quantum mechanics , astronomy
Atomic data on the Zeeman effect, especially for hydrogen and deuterium atoms, are vital for the analysis of spectral line profiles from magnetically confined fusion plasmas. In our laboratory, a 1.33 m McPherson spectrometer has been equipped with a CCD detector system, for precise Zeeman splitting and line intensity measurements. In the wavelength range 5000‐8000 Å, the resolution achieved in first and second order is about 0.07 Å and 0.04 Å, respectively. Construction of the CCD detector system is described, and sample spectra are displayed and discussed, with experimental errors within 0.5‐1 % in known cases. Zeeman spectra of Balmer H α , β and D α , β lines were generated in a Plücker tube discharge containing a mixture of Kr and H 2 /D 2 (6:1). Disturbance of the polarization of the π ‐components and an increase in the apparent atomic temperature derived from the widths of the H α , β and D α , β Zeeman components are described and discussed.