Advances in Radioactive Isotope Science

Session

plenary 02

5 juin 2023, 11:00

conclave

Présidents de session

plenary 02

• Isao Tanihata (Osaka University)

397. Highlights of GANIL-SPIRAL2 facilities

Dr Patricia Roussel-Chomaz (CEA)

05/06/2023 11:00

facilities/instruments

invited presentation

The SPIRAL2 Phase 1 LINAC moved from project status to full operation on December 31st 2021, after the important milestone of acceleration of 45 A deuton beam at 40 MeV. Beams of protons and alpha particles were also accelerated. These beams were sent to the Neutron For Science (NFS) experimental cave. Two NFS campaigns have been performed with neutron beams in Fall 2021 and 2022. The S3...

652. Observation of a correlated free four-neutron system

Dr Valerii Panin (GSI, Darmstadt)

05/06/2023 11:25

reactions

invited presentation

An isolated system of four neutrons is studied in the SAMURAI experiment at the Radioactive-Ion Beam Factory at RIKEN [1]. The key reaction 8He(p,pα)4n in inverse kinematics populates the final state of four neutrons through a prompt quasi-free-scattering process close to 180 degrees in the p-α centre-of-mass frame. The resulting energy spectrum of the free 4n system reveals a distinct...

385. Alpha-clustering in atomic nuclei from first principles

Takashi Abe (CNS, the University of Tokyo)

05/06/2023 11:50

theory

invited presentation

Owing to recent computational and methodological advances, ab-initio approaches in low-energy nuclear theory have been developed rapidly in recent years. As one of such approaches, the no-core Monte Carlo shell model (MCSM) is briefly introduced in this presentation. After verifying the capability of the no-core MCSM on actual computations, the alpha-cluster structure of light nuclei is...

299. Studies of Weakly-Bound, Neutron-Rich Nuclei using HELIOS and SOLARIS

Ben Kay (Argonne National Laboratory)

05/06/2023 12:15

reactions

invited presentation

The solenoidal-spectrometer technique developed at Argonne some 15 years ago in the form of HELIOS continues to evolve, adding new capabilities. A similar device has been recently installed at the Facility for Rare Isotope Beams (FRIB), called SOLARIS, for use with reaccelerated (ReA) beams. SOLARIS operates as a dual-mode spectrometer, both in a vacuum with position-sensitive silicon arrays...