Speaker
Description
We present the status of the design and simulations of a future end-station at the VITO beamline aimed at performing collinear Laser-Radiofrequency (RF) Double-Resonance Spectroscopy. The future experiment is intended to significantly enhance the precision in determining the Hyperfine Structure (HFS) constants of short-lived exotic nuclei (e.g., K isotopes), with an expected reduction in uncertainty to the order of tens of kHz.
The project includes the development of the RF transmission line, which has been optimized via electromagnetic simulations to maintain a 50 Ω impedance and ensure efficient power transfer for HFS transitions up to 4 GHz frequency range. Simulations show a sufficient field uniformity and the necessary power transfer for exciting resonances in isotopes like 47-49K.
The problem of magnetic shielding of the interaction area was also investigated as part of the planning. Results indicate that passive shielding is insufficient, highlighting the necessity of active shielding or the removal of external magnetic sources for the successful implementation of the future experiment.
