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Updated: Dec 14, 2025

Measurement of Ultrafast Vibrational Coherences in Polyatomic Radical Cations with Strong-Field Adiabatic Ionization
Published on: August 6, 2018
High-resolution laser resonance ionization spectroscopy of Pm
Dominik Studer1, Jiri Ulrich2, Saverio Braccini3
1Institut für Physik, Johannes Gutenberg-Universität Mainz, 55099 Mainz, Germany.
Abstract:
We present the results of high-resolution laser spectroscopy of the long-lived radioactive isotopes Pm. The hyperfine structures and isotope shifts in two different atomic ground-state transitions at 452 nm and 468 nm were probed by in-source laser spectroscopy at the RISIKO mass separator in Mainz, using the PI-LIST ion source. From the hyperfine coupling constants the nuclear magnetic dipole and electric quadrupole moments for Pm were derived, and the measured isotope shifts allowed the extraction of changes in nuclear mean square charge radii.
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