Plasma shifts of hydrogenic-ion lines
作者： T. L. Pittman , P. Voigt , D. E. Kelleher
DOI: 10.1103/PHYSREVLETT.45.723
关键词:
摘要: Systematic red shifts for the Paschen ..cap alpha.., ..beta.., and ..gamma.. lines (n=4,5,6..-->..n=3) of He II are observed over an electron density range (1--8) x 10/sup 22/ m/sup -3/. The measurements compared with combined estimates plasma polarization ion quadrupole effects. It is demonstrated that previous theoretical have left out important contribution to shift, which we estimate using Debye model.
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