Measurement of wavelengths in helium-like sulphur

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, , Citation D J H Howie et al 1996 J. Phys. B: At. Mol. Opt. Phys. 29 927 DOI 10.1088/0953-4075/29/5/007

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1 Clarendon Laboratory, University of Oxford, Oxford OX1 3PU, UK

2 Department of Physics, Florida State University, Tallahassee FL 32306, USA

Dates

  1. Received 12 September 1995

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0953-4075/29/5/927

Abstract

We have used photographic spectroscopy of a beam - foil source to measure the vacuum ultraviolet 1s2s - 1s2p transition wavelengths in helium-like sulphur. The results are Å and Å, respectively. These measurements, together with our earlier measurements in helium-like silicon and phosphorus, are compared with other precision measurements for Z = 14 to 18, and with recent relativistic and quantum electrodynamic calculations.

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