Measurement of the 1sLamb shift in hydrogenlike nickel
- 1 January 1991
- journal article
- research article
- Published by American Physical Society (APS) in Physical Review A
- Vol. 43 (1) , 223-227
- https://doi.org/10.1103/physreva.43.223
Abstract
The wavelength of the 2→1 transition in hydrogenlike has been measured with an accuracy of 13 ppm. Bare ions of 11.4 MeV/amu as emerging from a carbon stripper foil were decelerated to 8.4, 6.7, 5.2, and 3.1 MeV/amu and dressed in a thin target gas by electron capture. The x rays were measured with a crystal spectrometer in Johann geometry employing a position-sensitive x-ray detector. The 1s Lamb shift in hydrogenlike nickel has been found to be 5.07±0.10 eV in good agreement with theory.
Keywords
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