Speaker
Description
The forthcoming DESIR facility will soon open new perspectives for low-energy nuclear physics experiments at GANIL. Radioactive ion beams from SPIRAL1 and S³ facilities, including very exotic isotopes produced at competitive rates for dedicated studies, are set to be delivered at low energy, low emittance and with high purity to various mass measurement, decay spectroscopy or laser spectroscopy experiments.
Two setups currently developed at LP2i Bordeaux are key parts of this objective. BuRI‑To (“Bunching Radioactive Ions To…”, known as “GPIB” while it is being commissioned in Bordeaux) is a radiofrequency quadrupole cooler buncher to be installed at the entrance of the DESIR hall. It will deliver either continuous or bunched beams, with low emittance and high efficiency, adapted to the specific needs of each experiment (adapted bunch length, energy dispersion, etc.).
Also under development at Bordeaux, PIPERADE (« PIèges de PEnning pour les RAdionucléides à DESIR ») is a double Penning trap which has a double purpose in the DESIR hall. Located shortly downstream of BuRI‑To, it will allow high-resolution mass purification of the radioactive ion beams, with resolving powers up to 107. This enables the separation of low-lying isomeric states from their ground states and therefore allows isomerically-pure beams to be exploited by the downstream experiments in the DESIR hall. In addition, PIPERADE is also designed for high-precision mass measurements with the use of Time-of-Flight Ion-Cyclotron Resonance (ToF-ICR) and Phase-Imaging Ion-Cyclotron Resonance (PI-ICR) techniques.
This presentation will provide an overview on the commissioning work on both setups in Bordeaux, before their move to GANIL planned to start in 2026.
| Email address | roumegou@lp2ib.in2p3.fr |
|---|---|
| Classification | Ion traps and laser techniques |
