Orientation of 1s electrons using tilted foils

The prospects for producing orientation of the 1s level in highly charged ions using tilted foils is discussed. We analyse the transfer of orientation from the initial orbital angular momentum of an ion emerging from a foil to the ground-state spin via a combination of the spin-orbit interaction and cascade decays. An enhancement of the orientation can be obtained using a multi-tilted-foil technique similar to that used to orient nuclei. (author)