Nuclear Matter Program

ISOLDE-project

Finnish participation at ISOLDE

Juha Äystö

Department of Physics and Accelerator LaboratoryUniversity of Jyväskylä

Helsinki Institute of PhysicsUniversity of Helsinki

Nuclear Matter Program

ISOLDE-project

HIP Nuclear Matter Program-2003

Program leader: Juha Äystö

Physics + ITS bonding & T0

Project leader:Dr. W.H. Trzaska (JY) Dr. M. Oinonen (HIP) Prof. V. Ruuskanen (JY)

Core contribution: 1 MCHF

Physics & RIB techniques

Project leaderDr. A. Jokinen (SA, CERN) Prof. J. Äystö (JYU, CERN) Dr. K. Peräjärvi (CERN)

EURISOL ProjectEU funded (R&D)

Nuclear Matter Program

ISOLDE-project

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. WangGrad. 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. ToivanenGrad 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

Nuclear Matter Program

ISOLDE-project

Instrumentation

BUFFER GAS

HIGH VOLTAGE

VDC(z)

z

rCooling and bunching of radioactive ion beamsImprove the emittance, energy spread and the time structure of the radioactive ion beams2002: Simulations and design 2003: Construction starts

Si-ball projectA high-granularity Si-ball detector array for charged particle decay and reaction studies2002: Commissioning run for half-sphere2003: Experiments on 58Zn and 17Ne

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E(keV)

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New Tool: In-trap spectroscopy

Annular -detector

-detector

-detector

CE- detector

Radioactive ion cloud

CP detector

Ions in

118mInPRINCIPLE

CE-decay at REXTRAP

Nuclear Matter Program

ISOLDE-project

Nuclear Matter Program

ISOLDE-project

Nuclear spectroscopy

Nuclear Astrophysics:Decay properties and binding energies of rp-process nuclei2002: 69Kr decay to 69Br2003: Mass of 68Se and 72Kr2003-04: 12C()16O via 17Ne(p)

Weak interaction:2002: High-precision studies of superallowed beta decay of 74Rb2003: 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 nuclei2003-04: Evolution of collectivity in neutron-rich Cd isotopes; change over from isospin symmetric multiplets to shell model interpretation

Exotic decay modes:2002: Three -cluster states in 12C2003-04: 17Ne beta-delayed charged-particle decay

Michael Wiescher, APS-Meeting 2003

Studied at ISOLDE

Nuclear Matter Program

ISOLDE-project

Radioactive ion beams

Hall 1 Hall 2

Hall 3

REX-ISOLDEPost-accelerated ions for

1. Nuclear structure studies2. Nuclear astrophysics

2003: Energy upgrade to 3.1 MeV/u

Next Generation RNB-facilitySPL, RAMA, ISOLDEBeta-beams for -factory

In charge of InstrumentationStudy Group