Retour haut de page

Accueil du site > Actualités et Faits Marquants > Precision Measurement of the First Ionization Potential of Nobelium

Precision Measurement of the First Ionization Potential of Nobelium

One of the most important atomic properties governing an element’s chemical behavior is the energy required to remove its least-bound electron, referred to as the first ionization potential. For the heaviest elements, this fundamental quantity is strongly influenced by relativistic effects which lead to unique chemical properties. Applying the sensitive Radiation Detected Resonance Ionization Spectroscopy (RADRIS) technique at the SHIP velocity filter at GSI, allowed probing the optical spectrum of neutral nobelium (Z = 102) near the ionization threshold. The first ionization potential of nobelium was determined with a very high precision from the convergence of measured Rydberg series.

A selected Rydberg resonance proceeding from the intermediate state with Gaussian fits (solid lines) to the data.

Voir en ligne : PHYS. REV. LETT. 120, 263003 (2018)


 

IPN

Institut de Physique Nucléaire Orsay - 15 rue Georges CLEMENCEAU - 91406 ORSAY (FRANCE)
UMR 8608 - CNRS/IN2P3

Ce site est optimisé pour les navigateurs suivants Firefox, Chrome, Internet explore 9