Presentation is loading. Please wait.

Presentation is loading. Please wait.

Bericht zu ISOLDE Report on ISOLDE Susanne Kreim 30. November 2012 1)ISOLDE – numbers and developments 2)Low-energy experiments 3)Post-accelerated beams.

Similar presentations

Presentation on theme: "Bericht zu ISOLDE Report on ISOLDE Susanne Kreim 30. November 2012 1)ISOLDE – numbers and developments 2)Low-energy experiments 3)Post-accelerated beams."— Presentation transcript:

1 Bericht zu ISOLDE Report on ISOLDE Susanne Kreim 30. November )ISOLDE – numbers and developments 2)Low-energy experiments 3)Post-accelerated beams and upgrades KHuK Jahrestagung Bad Honnef Forschen für die Zukunft

2 ISOLDE – German Contribution 2 MINIBALL ISOLTRAP WITCH REX CRIS COLLAPS CONTROL ROOM Class-A lab Target/front-end U Darmstadt U Köln LMU München U Münster U Darmstadt U Mainz REX-ISOLDE U Bonn U Darmstadt U Köln LMU Müchen TU München GSI MPIK U Mainz U Tübingen GSI MPIK TU Dresden U Greifswald RILIS U Mainz Exotische Kerne

3 ISOLDE Collaboration: 14 member states + CERN BMBF funding (~10% contribution to the ISOLDE Collaboration) German contribution to ISOLDE: 60 k / year German contribution to HIE-ISOLDE: 40 k / year > 60 publications / year (among them ~10 Phys. Rev. Lett.) ISOLDE Statistics - General 3 Exotische Kerne

4 ISOLDE Statistics - Physics 4 ~ 80% reliability! YearShifts requestedShifts scheduledShifts delivered 2009~480~ ~500~ ~650~ Not counted yet 1 shift = 8h of protons on the target 13 experiments out of 51 scheduled in 2012 have a spokesperson from a German institute Exotische Kerne

5 Dual RILIS Operation 2012 RILIS = Resonance Ionization Laser Ion Source Upgraded in 2011 with solid-state Ti:Sa laser system Dual dye and Ti:Sa setup allowed for a record time of >2700 h RILIS ionized beam for ISOLDE users in 2012 Narrow band-width Ti:sapphire (NB-Ti:Sa) laser for in-source laser spectroscopy and isomer separation established data communication between RILIS and ISOLDE experiments Applied for laser spectroscopy of Au isotopes 5 Hochtechnologie für die Grundlagenforschung

6 1. ISOLDE Target: Production of exotic nuclei 2. RILIS: Element selective ionization 3. LIST: Full Isobar Suppression High-selective ion-beam production with Laser Ion Source & Trap (LIST) Selectivity Gain for 22 Mg / 22 Na ratio Fr S = 2400 KUL Windmill Detector First successful LIST online run !

7 COLLAPS Harvest 7 Proposals at COLLAPS: Data Taking, in Preparation, Just Completed Cu, Ga, Zn Mg Be Cd IS480 (K. Blaum, MPIK Heidelberg) PRL 108, (2012) IS439 (K. Flanagan, CERN) PLB 703 (2011) IS457 (B. Cheal, Manch.) PRC 84, (2011) IS519 (B. Cheal, Manch.) PRC 86, (2012) IS449 (W. Nörtershäuser & Ch. Geppert, Mainz) PRL 108, (2012) K, Ca, Mn IS497 (D. Yordanov, MPIK) IS484 (G. Neyens, Leuven) IS508 (B. Cheal, Manch.) IS529 (M.L. Bissell, Leuven) Pr IS517 (Ch. Geppert, Mainz) Atomkerne - Bausteine unserer Welt

8 8

9 WITCH: Weak Interaction Trap for Charged Particles 9 9 Combination of Penning traps with MAC-E filter: -Production of a scattering free source -Measurement of recoil energy distribution after -decay angular correlation a Test of standard model complementary to high energy physics Best test case for WITCH 35 Ar S V Standardmodell der Teilchenphysik

10 WITCH Online Runs 2011/ First data sets with 35 Ar taken 2011 Found several imperfections of the WITCH system and worked on it Took data in 2012 with statistics for a precision of a few % precision for a of 35 Ar Still had hints for ionization in the system Data analysis and further offline tests will reveal systematic effects Standardmodell der Teilchenphysik

11 B 82 Zn for Nuclear Structure and Astrophysics Helps to pin down nuclear models to study the behavior of nuclei at the extremes of stability Its determination is important for modelling of the crust of neutron stars Kerne und Sterne High-precision Penning-trap mass spectrometry with ISOLTRAP R. N. Wolf et al., PRL, submitted (2012)

12 MR-TOF MS at ISOLTRAP Multi-reflection time-of-flight mass separator (MR-TOF MS) at ISOLTRAP experiment plus detector as stand-alone system Particles travel up to 34km before ejection Direct time-of-flight mass measurements become possible, ex. 54 Ca (ISOLDE yield 10/s) Excellent synergy between precision experiment and current theoretical developments (A. Schwenk, TU Darmstadt) R. N. Wolf et al., Nucl. Instr. and Meth. A 686, (2012), S. Kreim et al., INTC-P-317, IS 532 (2011) Die Grenzen der Stabilität von Kernen

13 Shell stabilization in N=80 isotones? 13 measured B(E2; ) values of 140 Nd and 142 Sm Trend of increasing B(E2) continuous beyond Z=58 within errors Observation of local suppression in collectivity at Z=58 New data provide evidence for shell stabilization mechanism introduced in PRL 96, (2006). View at the opened target chamber: Systematics of B(E2) values in N=80 isotones: Die Landkarte der Nuklide Post-accelerated beam from REX-ISOLDE Method: Coulomb excitation in inverse kinematics at the MINIBALL setup MINIBALL array of 8 3-fold segmented high- purity Germanium clusters Particle identification via double-sided Si detectors AG Pietralla

14 Coulomb Excitation of 123,128 Miniball Cd: Level scheme has to be sorted out 128 Cd: B(E2)-value has to be extracted IS477 IS524 Die Entstehung der Elemente

15 Octupole Deformation in 224 Ra 15 Mass number A 224 Ra DSSD Particle detector 224 Ra good candidate to look for CP-violating static electric dipole moment Fundamentale Symmetrien

16 Near Future: HIE-ISOLDE Project 16 Energy Upgrade: The HIE-ISOLDE project concentrates on the construction of the SC LINAC for post- accelerated radioactive ion beams to 5.5 MeV/u in 2014 and 10 MeV/u by 2016 Intensity Upgrade: The design study for technical feasibility and cost estimate for operating the facility at 15 kW once LINAC4 and PS Booster are online. Beam Quality Upgrade: RFQ cooler and buncher Higher mass resolving power HRS Instrumente der Hadronen- und Kernphysik

17 Status of HIE-ISOLDE 17 Civil Engineering almost finished Proton at ISOLDE stop Cooling and Ventilation work about to start Cavity prototypes designed and built Procurement main issue: cryogenic system New study for integration of the cryo-module into the shielding tunnel CERN accelerator stop on ISOLDE hall will become a radioactive controlled area During LS 1 safety shoes and hard hats mandatory Instrumente der Hadronen- und Kernphysik

18 Heavy-ion storage ring TSR 2/2012: TDR presented at INTC 4/2012: M. Grieser et al., Eur. Phys. J. Special Topics 207, (2012) Collaboration Board defined 5/2012: CERN Research Board gave skeletron approval experiment now, maybe facility after LS2 8/2012: Mandate of the TSR Integration Study Working Group 10/2012: Workshop Working Groups and responsibilities were defined 18 Possible planning: 2014: building provided 2014: disassembly 2015: assembly and commissioning 2016: start up Status und Perspektiven Darmstadt, Dresden, Frankfurt, Gießen, Greifwald Heidelberg, Jena, Köln, Mainz, München

19 Education / Outreach ~20 PhD students / year About 10 CERN summer students ~10 Students for internships, Bachelor or Master thesis Active visits program for students from German universities and high- schools organized by ISOLDE members Magazine Kultur und Technik of the Deutsche Museum, issue 04/2012 Report on work as a scientist at CERN Example ISOLTRAP Experiment at ISOLDE 19 Ausbildung in Hadronen- und Kernphysik

20 ISOLDE offers a complementary technique to existing facilities in Germany ISOLDE remains a pioneering ISOL installation both at level of designing and production of frontier physics German groups obtained numerous scientific highlights at ISOLDE in recent years HIE-ISOLDE will bridge the gap to EURISOL higher energy and intensity of proton beam for more neutron-rich nuclei offers unique perspectives Slides were provided by: Maria Borge, Sabine Bönig, Martin Breitenfeldt, Yacine Kadi, Magda Kowalska, Kim Kreim, Norbert Pietralla, Peter Reiter, Sebastian Rothe, Marcus Scheck, Klaus Wendt, Deyan Yordanov Summary 20 Internationale Experimente mit deutscher Beteiligung

Download ppt "Bericht zu ISOLDE Report on ISOLDE Susanne Kreim 30. November 2012 1)ISOLDE – numbers and developments 2)Low-energy experiments 3)Post-accelerated beams."

Similar presentations

Ads by Google