SCIENCE - New technique traces ejected electrons back to atomic shells

(Phys.org) —In a detailed study of how intense light strips electrons from atoms, researchers used an X-ray laser, SLAC's Linac Coherent Light Source (LCLS), to measure and sort the ejected electrons and discover how this process takes place ...

http://phys.org/news/2013-10-technique-ejected-electrons-atomic-shells