Absolute wavelength measurement of the Lyman-α transitions of hydrogenicMg11+

Autor:	G. Hölzer, J. R. Crespo López-Urrutia, Eckhart Förster, D. Klopfel, Klaus Widmann, Gregory V. Brown, P. Beiersdorfer
Rok vydání:	1998
Předmět:	Crystal Physics Wavelength Ion trap Atomic physics Magnesium ion X ray spectra Atomic and Molecular Physics and Optics Lamb shift
Zdroj:	Physical Review A. 57:945-948
ISSN:	1094-1622 1050-2947
DOI:	10.1103/physreva.57.945
Popis:	The wavelengths of the 1s{sub 1/2}-2p{sub 1/2} and 1s{sub 1/2}-2p{sub 3/2} Lyman-{alpha} transitions have been measured in hydrogenic Mg{sup 11+} with an accuracy as high as 24 ppm. The measurement was carried out on an electron-beam ion trap and utilized a quasimonolithic crystal setup absolutely calibrated relative to optical standards. The resulting values for the two transitions were 0.84250{plus_minus}0.00004 and 0.84190{plus_minus}0.00002nm, respectively. The measurement confirms calculations of the 1s-2p wavelengths and tests the size of the 1s Lamb shift to within 13{percent}. {copyright} {ital 1998} {ital The American Physical Society}
Databáze:	OpenAIRE
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