Laser spectroscopy study of element 100

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fermium isotopes

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Fermium studied at GSI/FAIR: Researchers investigate nuclear properties of element 100 with laser light

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Fermium studied at GSI/FAIR: Researchers investigate nuclear properties of element 100 with laser light.

They gained insight into the structure of atomic nuclei of fermium with different numbers of neutrons.

Using forefront laser spectroscopy techniques, they traced the evolution of the nuclear charge radius and found a steady increase as neutrons were added to the nuclei.

Laser light of a suitable wavelength lifts an electron in the fermium atom to a higher-lying orbital, and then removes it from the atom altogether.

The exact energy required for this stepwise ion-formation process varies with neutron number.

Results confirm theoretical predictions that local shell effects lose influence when the nuclear mass increases.

Smooth trends in fermium charge radii and the impact of shell effects. Nature, 2024 ; 634 ( 8036 ): 1075 DOI: 10.1038 /s41586-024-08062-z Cite This Page:.

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