Ions of almost any charge state can be produced through electron‐impact ionization. Here we describe our first experiments designed to photoionize these highly charged ions with hard x‐rays by pairing an electron and photon beam. A spectral line at 12.7(1) keV with an intensity corroborated by theory may be the first evidence of hard x‐ray photoionization of a highly charged ion.

You do not currently have access to this content.