[Flick Lives]

“If 20 of titanium’s 22 electrons are removed, it becomes a highly charged ion that looks in many ways like a helium atom that has been shrunk to a tenth its original size,” explains NIST physicist John Gillaspy, a member of the research team. “Ironically, in this unusual state, the effects of QED are magnified, so we can explore them in more detail.”

It sounds almost like they have effectively built a single-atom cyclotron.

[null and void]

Good point. High (near relativistic) electron velocity=higher mass=shift in emitted wavelength.

It would be nice to know if the emitted light was red shifted or blue shifted...