New Journal of Physics (Jan 2018)

Wavelength-dispersive spectroscopy in the hard x-ray regime of a heavy highly-charged ion: the 1s Lamb shift in hydrogen-like gold

  • T Gassner,
  • M Trassinelli,
  • R Heß,
  • U Spillmann,
  • D Banaś,
  • K-H Blumenhagen,
  • F Bosch,
  • C Brandau,
  • W Chen,
  • Chr Dimopoulou,
  • E Förster,
  • R E Grisenti,
  • A Gumberidze,
  • S Hagmann,
  • P-M Hillenbrand,
  • P Indelicato,
  • P Jagodzinski,
  • T Kämpfer,
  • Chr Kozhuharov,
  • M Lestinsky,
  • D Liesen,
  • Yu A Litvinov,
  • R Loetzsch,
  • B Manil,
  • R Märtin,
  • F Nolden,
  • N Petridis,
  • M S Sanjari,
  • K S Schulze,
  • M Schwemlein,
  • A Simionovici,
  • M Steck,
  • Th Stöhlker,
  • C I Szabo,
  • S Trotsenko,
  • I Uschmann,
  • G Weber,
  • O Wehrhan,
  • N Winckler,
  • D F A Winters,
  • N Winters,
  • E Ziegler,
  • H F Beyer

DOI
https://doi.org/10.1088/1367-2630/aad01d
Journal volume & issue
Vol. 20, no. 7
p. 073033

Abstract

Read online

Accurate spectroscopy of highly-charged high- Z ions in a storage ring is demonstrated to be feasible by the use of specially adapted crystal optics. The method has been applied for the measurement of the 1 s Lamb shift in hydrogen-like gold (Au ^+78 ) in a storage ring through spectroscopy of the Lyman x-rays. This measurement represents the first result obtained for a high- Z element using high-resolution wavelength-dispersive spectroscopy in the hard x-ray regime, paving the way for sensitivity to higher-order QED effects.

Keywords