Finnish participation at ISOLDE Juha Äystö Department of Physics and Accelerator Laboratory University of Jyväskylä Helsinki Institute of Physics University of Helsinki
HIP Nuclear Matter Program-2003 Program leader: Juha Äystö Physics & RIB techniques Project leader Dr. A. Jokinen (SA, CERN) Prof. J. Äystö (JYU, CERN) Dr. K. Peräjärvi (CERN) Physics + ITS bonding & T0 Project leader: Dr. W.H. Trzaska (JY) Dr. M. Oinonen (HIP) Prof. V. Ruuskanen (JY) Core contribution: 1 MCHF EURISOL Project EU funded (R&D)
ISOLDE at CERN
Our recent ISOLDE-activities Experimental nuclear physics group (JYU) Prof. J. Äystö (INTC chair) Dr. A. Jokinen (ISCC-representative), Dr. S. Kopecky, Dr. Y. Wang Grad. Students: T. Eronen J. Huikari, A. Kankainen, V. Kolhinen, S. Rinta-Antila Nuclear theory for ISOLDE studies (JYU): Prof. J. Suhonen (INTC-member), Dr. J. Toivanen Grad student: J. Kotila Solid state physics (HU+JYU): Prof. J. Räisänen Grad students: P. Laitinen, I. Riihimäki, Research areas Nuclear astrophysics Weak interaction Nuclear structure FFS Novel instrumentation Radioactive ion beams 6 PhDs in 1997-2003
Instrumentation + _ Cooling and bunching of radioactive ion beams Improve the emittance, energy spread and the time structure of the radioactive ion beams 2002: Simulations and design 2003: Construction starts Si-ball project A high-granularity Si-ball detector array for charged particle decay and reaction studies 2002: Commissioning run for half-sphere 2003: Experiments on 58Zn and 17Ne
New Tool: In-trap spectroscopy CE-decay at REXTRAP New Tool: In-trap spectroscopy PRINCIPLE 118mIn Annular g-detector CP detector CE- detector b-detector Ions in Radioactive ion cloud b-detector
Nuclear spectroscopy Nuclear Astrophysics: Weak interaction: Decay properties and binding energies of rp-process nuclei 2002: 69Kr decay to 69Br 2003: Mass of 68Se and 72Kr 2003-04: 12C(a,g)16O via 17Ne(bp) Weak interaction: 2002: High-precision studies of superallowed beta decay of 74Rb 2003: Isospin symmetry probed by the charge-exchange reactions and the beta decay of 58Zn Structure of nuclei far from stability: 2002-03: The structure of heavy Ca-isotopes and the effective interaction in the sd-fp shell of very neutron-rich nuclei 2003-04: Evolution of collectivity in neutron-rich Cd isotopes; change over from isospin symmetric multiplets to shell model interpretation Exotic decay modes: 2002: Three a-cluster states in 12C 2003-04: 17Ne beta-delayed charged-particle decay
Michael Wiescher, APS-Meeting 2003 Studied at ISOLDE
Radioactive ion beams In charge of Instrumentation Study Group REX-ISOLDE Post-accelerated ions for Nuclear structure studies Nuclear astrophysics 2003: Energy upgrade to 3.1 MeV/u Next Generation RNB-facility SPL, RAMA, ISOLDE Beta-beams for n-factory In charge of Instrumentation Study Group