Portal de Periódicos da CAPES

Determination of the 1s Lamb shift in one-electron argon recoil ions

1985; IOP Publishing; Volume: 18; Issue: 2 Linguagem: Inglês

10.1088/0022-3700/18/2/008

1747-3721

Heinrich Beyer, R.D. Deslattes, F. Folkmann, R. E. LaVilla,

Scientific Measurement and Uncertainty Evaluation

The authors report accurate measurements of 2p3/2,1/2 to 1s (Lyman- alpha 1,2) transitions in Ar17+ produced by encounters with a U66+ beam at 5.9 MeV/nucleon. The 'recoil' production mechanism eliminates the need for Doppler corrections while a wavelength accuracy of 5 p.p.m. relative to visible standards is attained through use of a transfer standard X-ray profile. This permits a 1.5% test of the 1s1/2 Lamb shift as limited by model uncertainties arising from spectator electron satellites.