
Combining the unparalleled sensitivity of in-source resonance ionization spectroscopy with the resolution required to resolve sub 1 GHz hyperfine structures and isotope shifts in atomic transitions of actinides. For this goal, the work towards the implementation of the PI-LIST device (perpendicularilluminated Laser Ion Source Trap) shall be performed at ISOLDE. This will include the design and setup of infrastructure required for the on-line PI-LIST operation followed by characterization of its performance and high-resolution laser spectroscopy studies using the PI-LIST. Optimal ionization schemes for actinium (together with ESR1) and protactinium shall be established in the frame of this project. The eventual application of PI-LIST for actinide elements at ISOLDE will rely on the successful extraction of actinium and protactinium isotopes from an ISOLDE target (ESR3). The two fellows will closely collaborate to ensure the complementarity of these development projects. Development of optimal ionization schemes of actinides for ISOLDE will be performed via laser spectroscopy of actinide elements in close collaboration with JGU (ESR5). Such links are already established and will be further enhanced in the course of the proposed ITN.
Implementation of the PI-LIST at ISOLDE on-line isotope separation facility [D2.2]; demonstration of sub-Doppler resolution and enhanced isomer selectivity using the PI-LIST; selection of the optimal laser ionization schemes for actinium and protactinium; new experimental results on IS and HFS of atomic transitions in actinides (WP4&5).