Determination of the 160Gd ionization energy -: art. no. 022508

被引：14

作者：

Bushaw, BA

Blaum, K

Nörtershäuser, W

机构：

[1] Pacific NW Natl Lab, Richland, WA 99352 USA

[2] Gesell Schwerionenforsch mbH, D-64291 Darmstadt, Germany

来源：

PHYSICAL REVIEW A | 2003年 / 67卷 / 02期

关键词：

D O I：

10.1103/PhysRevA.67.022508

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

The ionization energy of Gd-160 has been determined using high-resolution laser excitation on an effusive Gd atomic beam. Even-parity J=5,6 Rydberg series were excited by three single-frequency lasers. Despite the complex electronic structure of Gd, sequences of relatively unperturbed levels were observed in the ranges n=50-79 and 87-120. After correcting for weak perturbations, the convergence of several Rydberg series has an uncertainty of 6x10(-4) cm(-1). The final value of 49 601.514 2(8) cm(-1) includes cumulative uncertainty in absolute laser wave numbers for the ladder of transitions coupling the Rydberg spectrum to the J=2 ground state.

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页数：5

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