The next edition of the ISRS Workshop will be held at CERN on 5 July 2023 via videoconference. The workshop aims to update the status of the ISOLDE Superconducting Fragment Separator and discuss the R&D program up to the end of 2025.
The ISOLDE Superconducting Recoil Separator (ISRS)
The ISRS is a rotatable high-resolution spectrometer able to separate reaction fragments induced by HIE-ISOLDE beams, from the lightest to the heavies nuclear species, at collision energies up to 10 MeV A. The new spectrometer will greatly benefit Nuclear Astrophysics, Nuclear Structure, and Reaction studies, covering a wide range of reaction processes such as Coulomb dissociation, Multinucleon transfer reactions, Deep inelastic, Fusion-Fission evaporation, and Breakup, and high-resolution focal plane spectroscopy of the new species produced by secondary reactions.
The conceptual layout of the ISRS is shown in Fig. 1. The spectrometer is essentially an isochronous non-scaling fixed-field alternating-gradient particle-storage system, where the time-of-flight is a direct measurement of the M/Q ratio. Neighboring masses can be separated by a suitable RF system synchronized to the duty cycle, regrouping charge states of selected isotopes and removing the rest. After ring extraction, the Z resolution can be provided by the focal plane detector.
Fig. 1 Concept design of ISRS and main subsystems
The ring uses curved Multifunction Superconducting Canted-Cosine-Theta magnets (CCT) where magnetic fields are superimposed by nesting several tilted solenoids oppositely canted so that the required multipolar fields are produced in the same magnet.
Acknowledgments
Project co-funded by the Grant PID2021-127711NB-I00 (Spain), the Recovery and Resilience Facility (Spain), and the European Union – NextGenerationEU.
