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ISOLDE Collaboration Committee Scientific Report - Startup and 2004 Schedule Overview

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urbano
8 diapositives · 197 Views · Sep 14, 2014

This report summarizes the startup and operational schedule for the ISOLDE project in 2004, noting a one-week delay and a reduction in operation to 26 weeks. Key updates include the cancellation of two runs and the shortening of one experiment. Notable experiments conducted include high-precision mass measurements of exotic nuclei, nuclear moment measurements, and spectroscopy with short-lived isotopes. The report also highlights various pending experiments, approved shifts for further research, and ongoing developments within the facility.

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ISOLDE Collaboration Committee Scientific Report - Startup and 2004 Schedule Overview
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  1. L.M. Fraile, CERN PH/IS ISOLDE scientific coordinator’s report ISOLDE Collaboration Committee 24th May 2004 Summary of startup and schedule for 2004

  2. Summary of running period • STARTUP delayed 1 week • Operation reduced to 26 weeks • Decision whether it will be extended by end of July • Two runs were cancelled, one experiment shortened • Performed experiments: • IS419: Measurement of Gas and Volatile Elements Production Cross Section in a Molten Lead-Bismuth Target (part) • IS413: High precision mass measurements of exotic nuclei with ISOLTRAP • IS401: Semiconductor Spectroscopy with Short Lived Isotopes • P183: Nuclear moments and charge radii of magnesium isotopes from N=8 up to (and beyond) N=20 • IS389: Measurement of Moments and Radii of Light Nuclei by Collinear Fast-Beam Laser Spectroscopy and ß-NMR Spectroscopy • REX molecular beam tests: SeCO, AlF (Se, F beams)

  3. GPS 2004 (2nd half) IS410Coulomb excitation of 32Mg IS409 Fusion Reactions at the Coulomb Barrier with Neutron-rich Mg Isotopes IS399Exploring the dipole polarizability of 11Li at REX-ISOLDE IS368 Lattice location of transition metals in semiconductors IS371 Investigations of neutron-rich nuclei at the dripline through their analogue states: The cases of 10Li-10Be (T=2) and 17C-17N (T=5/2) IS418 Coulomb Excitation of Neutron Deficient Sn-Isotopes using REX-ISOLDE IS422204mPb: A New Probe for TDPAC Experiments in Biology Complementing the Well Established Probes 111mCd and 199mHg IS419 Measurement of Gas and Volatile Elements Production Cross Section in a Molten Lead-Bismuth Target P111Search for new physics in beta-neutrino correlations using trapped ions and a retardation spectrometer (WITCH test) IS383 Laser Spectroscopy Studies in the Neutron-Rich Sn Region (COMPLIS) IS395 31Si Self-Diffusion in Si-Ge Alloys and Si-(B-)C-N Ceramics and Diffusion Studies for Al and Si Beam Developments IS397Charge Breeding of Radioactive Ions in an Electron Cyclotron Resonance Ion Source (ECRIS) at ISOLDE IS415 Magnetic Moments of Coulomb Excited 2+1 States for Radioactive Beams of 132, 134, 136Te, 136Xe Isotopes at REX-ISOLDE (test) IS400Investigation of astrophysically relevant neutron-rich argon nuclei IS412 Coulomb excitation of neutron-rich nuclei between the N=40 and N=50 shell gaps using REX-ISOLDE and the Ge MINIBALL array P179 Radioactive Probes on Ferromagnetic Surfaces IS411 Coulomb Excitation of neutron-rich A~140 Nuclei

  4. HRS 2004 (2nd half) P111 Search for new physics in beta-neutrino correlations using trapped ions and a retardation spectrometer P173Parity Non-conservation in Nuclei: The Case of 180mHf Revisited IS423Coulomb excitation of a neutron-rich 88Kr beam-search for mixed symmetry states IS414 Advanced Time-Delayed coincidence studies of 31,32Mg from the β-decays of 31,32Na IS386 Studies of electric dipole moments in the octupole collective regions of heavy Radiums and Bariums IS405 Obtaining empirical validation of shape-coexistence in the mass 70 region: Coulomb excitation of a radioactive beam of 70Se IS421 Study of neutron-rich 124,126,128Cd isotopes; excursion from symmetries to shell-model picture IS424 Inelastic branch of the stellar reaction 14O(,p)17F

  5. GPS 2004

  6. HRS 2004

  7. REX-ISOLDE • Approved shifts for REX: 227 + 15 = 242 • Non-MINIBALL (367, 371, 399, 416): 47 • MINIBALL (405, 409, 410, 411, 412, 415, 418, 423, 424): 180 • Limited to run from July onwards • Machine development (upgrade IS408): 15 • Requested shifts: 214 • Non-MINIBALL: 38 • MINIBALL: 176 • Allocated: 162 • Non-MINIBALL: 26 • MINIBALL: 136

  8. RILIS • Requested Physics shifts: 264 • Limited manpower… • …and operating time • Requested elements: • Mg: 80 shifts • Ag: 38 • Cd: 36 • Sn: 31 • Zn: 28 • Other: Ga, Mn, Pb…