Double ionisation of Ba from 550 to 670 nm
James L. DexterDept. of Phys., Virginia Univ., Charlottesville, VA, USAS. JaffeDept. of Phys., Virginia Univ., Charlottesville, VA, USAT. F. GallagherDept. of Phys., Virginia Univ., Charlottesville, VA, USA
1985en
ABI
Abstract
The authors have observed the spectra for the production of Ba+ and Ba2+ between 550 and 670 nm. They observe sharp resonances for the production of Ba2+ which generally do not coincide with peaks in the Ba+ production. While they can easily assign most of the resonances in the Ba+ spectra to two-photon resonances with bound states it is not possible to assign most of the Ba2+ peaks to two- or three-photon Ba+ transitions. This suggests that the production of Ba2+ proceeds both via Ba autoionising states and low-lying Ba+ states.
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