We report on calculations of electron-impact broadening of Sr+ spectral lines in ultracold neutral plasmas. Optical absorption imaging of an ultracold Sr plasma has recently been used to infer detailed in situ information on the ion dynamics. We modify our recent treatment of collisional broadening in He metastable lines to the collision of electrons from Sr+ ions. The required scattering matrix elements are obtained from an ab initio R-matrix calculation.
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