Eur. Phys. J. D 21, 255-260 (2002)
https://doi.org/10.1140/epjd/e2002-00215-y

Isotope shift and hyperfine structure of the highly excited atomic uranium

Japan Atomic Energy Research Institute, Tokai-mura, Naka-gun, Ibaraki, 319-1195, Japan

Corresponding author: ^a oba@analchem.tokai.jaeri.go.jp

Received: 3 December 2001
Revised: 4 July 2002
Published online: 29 October 2002

Abstract

The laser induced fluorescence method using atomic beam combined with Doppler-free two-photon absorption technique was applied for the measurement of isotope shifts and hyperfine structures of atomic uranium including ²³⁴U, ²³⁵U, ²³⁶U and ²³⁸U isotopes. The isotope shifts between ²³⁸U–²³⁴U, ²³⁸U–²³⁵U, ²³⁸U–²³⁶U, and the hyperfine structure of ²³⁵U were obtained in the high lying odd levels around 4 eV.