skip to main content
OSTI.GOV title logo U.S. Department of Energy
Office of Scientific and Technical Information

Title: Measurement of the 1 s Lamb shift in hydrogenlike nickel

Journal Article · · Physical Review, A; (USA)
 [1];  [2]; ;  [1];  [2]
  1. Gesellschaft fuer Schwerionenforschung Darmstadt m.b.H., Postfach 110552, 6100 Darmstadt, Federal Republic of Germany (DE)
  2. National Institute of Standards and Technology, Gaithersburg, Maryland 20899 (US)

The wavelength of the 2{ital p}{sub 3/2}{r arrow}1{ital s}{sub 1/2} transition in hydrogenlike Ni{sup 27+} has been measured with an accuracy of 13 ppm. Bare Ni{sup 28+} 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 1{ital s} Lamb shift in hydrogenlike nickel has been found to be 5.07{plus minus}0.10 eV in good agreement with theory.

OSTI ID:
6100797
Journal Information:
Physical Review, A; (USA), Vol. 43:1; ISSN 1050-2947
Country of Publication:
United States
Language:
English