Polarization measurements on a magnetic quadrupole line in Ne-like barium

1 August 1996

journal article
research article
Published by American Physical Society (APS) in Physical Review A

Vol. 54 (2) , 1342-1350
https://doi.org/10.1103/physreva.54.1342

Abstract

We have measured the absolute polarization of the 2

p^{61}

S_{0}

-2

p^{5}

(^{2}

P_{3 / 2}^{o}

)3s[3/2

]_{2}^{o}

magnetic quadrupole transition in Ne-like barium, excited in an electron-beam ion trap at a variety of energies. We find strong evidence for the existence of resonant excitation processes that are not explained by our collisional-radiative calculations even when the polarization arising from impact excitation is included. At energies well away from where the resonances occur, the agreement between experiment and theory is good. © 1996 The American Physical Society.

Keywords

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