Lamb shifts and fine structures on n = 2 in helium-like ions

Measurements have been made on foil-excited titanium and nickel beams at the Tandem-Linac. The titanium results from several runs at the Argonne Linac have yielded a measurement of the 2s-2p(J=2) transition which is in excellent agreement with the latest calculations. Nickel spectra obtained with 365-MeV nickel beams showed many new yrast transitions in 4- and more electron nickel ions, but the presently available Linac beams are too low in energy to permit the study of the 2-electron spectrum in any detail. Measurements in the same transitions (J=0, 1, 2) in neon have been completed and are being analyzed