Precision measurement of the H-like X-ray spectrum of Cl and the 1s Lamb shift
- 14 March 1984
- journal article
- Published by IOP Publishing in Journal of Physics B: Atomic and Molecular Physics
- Vol. 17 (5) , L115-L120
- https://doi.org/10.1088/0022-3700/17/5/002
Abstract
The H-like spectrum of chlorine emitted from the Alcator C tokamak has been measured using a Bragg crystal X-ray spectrometer and in situ wavelength calibrations. The 1s-2p transition energies were determined to an accuracy of 34 p.p.m. allowing for a test of the theoretically calculated Lamb shift of the 1s level in Cl16+ at the 12% level. This new technique of spectroscopy of highly ionised atoms could be further refined to approach the 5 p.p.m. accuracy level in the absolute transition energy determination.This publication has 10 references indexed in Scilit:
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