• DOI:10.1103/PhysRevLett.90.163002
Corpus ID: 16234935

First observation of atomic levels for the element fermium (Z=100).

@article{Sewtz2003FirstOO,
  title={First observation of atomic levels for the element fermium (Z=100).},
  author={Michael Sewtz and Hartmut Backe and Achim Dretzke and Gero Kube and Werner Lauth and Peter Schwamb and Klaus Eberhardt and Carsten Gruening and P. Thoerle and Norbert Trautmann and Peter Kunz and Johan Lassen and Gerd Passler and Chenzhong Dong and Stephan Fritzsche and Richard G. Haire},
  journal={Physical review letters},
  year={2003},
  volume={90 16},
  pages={
          163002
        }
}

Michael Sewtz, Hartmut Backe, +13 authors Richard G. Haire

Published 2003

Physics, Medicine

Physical review letters

The atomic level structure of the element fermium was investigated for the first time using a sample of 2.7x10(10) atoms of the isotope 255Fm with a half-life of 20.1 h. The atoms were evaporated from a filament and stored in the argon buffer gas of an optical cell. Atomic levels were sought by the method of resonance ionization spectroscopy using an excimer-dye-laser combination. Two atomic levels were found at wave numbers (25 099.8+/-0.2) and (25 111.8+/-0.2) cm(-1). Partial transition rates… CONTINUE READING

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