AGATA-PRESPEC - Agenda (Indico) ... AGATA-PRESPEC local organization AGATA FAIR PRESPEC AGATA PRESPEC

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  • AGATA-PRESPEC In-beam perspectives and requirements

    J. Gerl GSI

    January 21, 2010, y AGATA Week LNL Legnarog

  • From RISING to HISPEC/DESPEC

    RISING stopped in September 2009 Want to continue successful spectroscopy programme

    HISPEC/DESPEC starts after 2016

    spectroscopy programme

    Need to commission and implement new instrumentation

    PRESPECPRESPEC

    Decay and In-beam spectrocopy programme at the FRS until HISPEC/DESPEC starts

    E l i i t t ti it b il blEmploying new instrumentation as it becomes available

    Platform for coordinated test and commisioning of HISPEC/DESPEC components

    O i ti l f k f th t it t GSI/FAIR

    152

    Organisational framework of the spectroscopy community at GSI/FAIR

  • Relativistic Coulomb excitation / fragmentation 112Sn →Au

    excited nucleus

    Coulomb interaction

    Prefragment

    153 293

    Prefragment Equilibrated

    nucleus

  • RISING In-flight set-up

    105 Ge crystals Energy resolution (FWHM): 1 24%

    154 294

    Energy resolution (FWHM): 1.24% Total efficiency: 2.9% [for Eγ = 1.3 MeV at 100 MeV/u]

  • Coulomb Excitation of n-rich Cr Isotopes A new sub-shell closure exists at N=32

    155 295 Evidence for reduced B(E2) value at N=32

  • Secondary fragmentation of 55Ni on 9Be at 140 MeV/uSecondary fragmentation of Ni on Be at 140 MeV/u

    Mirror symmetry o sy et y at N ≈ Z

    4+ 6+

    2+ 50Cr extract lifetimes f

    Mike Bentley et al.

    (8+)

    Ni

    dE from lineshapes

    2+ 46Ti

    Ni Co Fe Mn Cr

    4+

    6+ (8+)

    Ti

    Ca Ti

    Ar S

    SiSi

    E

    156 116

    First observation of higher spin states at relativistic energies

  • Planned Improvements

    production primary int selection

    identification implantation / reaction

    spectroscopyprimary int.

    rate capability γ tracking

    reaction

    identification granularity / active target

    ToF

    γ detectors

    157 Calorimeter

  • Steps towards AGATA at GSI how to complicate thingsHistory: how to complicate things....History:

    1.2009: GANIL not available for AGATA in 2011/12

    2.2009: Development of set-up starts2.2009: Development of set up starts (≈10x sensitivity, EDAQ scenarios; 2 y for dev., constr. and install. )

    3.2009: GSI management provisionally agrees to host AGATA in 2011/12 (resources and beam time planning starts)(resources and beam time planning starts)

    5.2009: GSI accepts AGATA support and beam time requirements (under the condition of a general 5 year NUSTAR beam time plan)

    6.2009: PRESPEC workshop to agree on up-front experiments

    7.2009: NUSTAR, AGATA and GSI to agree on 5 year beam time plan

    7.2009: Mini Workshop on AGATA Detector set-up

    9.2009: Official start of PRESPEC

    10.2009: Start of working groups

    10.2009: G-PAC on PRESPEC up-front experiments

    158

    12.2009: Local Project Manager approved

    1.2010: Local organization defined

  • AGATA-PRESPEC local organizationg

    AGATA FAIRAGATA PRESPEC

    FAIR

    AGATA PRESPEC

    Physics Coordination GSI

    W. Korten M. Bentley

    Local Project Manager

    H.J. Wollersheim

    γ−Detection (AGATA geometry,

    simulation )

    Part.−Detection (LYCCA, active target,

    FRS det )

    EDAQ (AGATA coupling, Anc.

    implementation )

    Analysis (Tracking, PSA,

    Doppler )

    159

    simulation,...)

    Coord. C. Domingo FRS det.,...)

    Coord. P. Boutachkov implementation,...)

    Coord. S. Pietri Doppler...)

    Coord. E. Merchan

  • RISING to PRESPEC to HISPEC/DESPEC

    2014

    RISING Decay passive stopper

    2008 20132012201120102009 20142007

    Constraints: passive stopper

    RISING Decay active stopper

    reduced beam time → duration of campaigns availability of AGATA → sequence of campaigns reduced planning reliability → more flexibility a

    t F A

    IR

    PRESPEC LYCCA-0 Commis.

    active stopper reduced planning reliability → more flexibility....

    C om

    m is

    .

    AGATA - PRESPEC In beam campaign

    er -F

    R S

    C

    PRESPEC Decay neutrons, g-factor,...

    S up

    e

    1510

    g ,

    HISPEC/DESPEC instrumentation commissioning

  • Fast Beam Campaign

    provisional time plan

    2010 2011 2012 2013

    Q1 Q2 Q3 Q4 Q1 Q2 Q3 Q4 Q1 Q2 Q3 Q4 Q1 Q2 Q3 Q4

    Beamtime UNILAC

    Beamtime SIS

    Beamtime ESR

    Shut-Down UNILAC

    Shut-Down SIS

    PRESPEC Commissioning

    2 weeks PRESPEC front-up

    12 weeks Fast-beam AGATA

    1511

  • AGATA Fast Beam Campaign how to dissolve complexity....

    Time plan:

    1.2010: Freeze Geometry and EDAQ concept

    5.2010: AGATA physics workshop (Istanbul)

    2010: Perform PRESPEC up-front experiments without AGATA Proposal submission and G PAC evaluationProposal submission and G-PAC evaluation

    7.2011: Installation of AGATA

    10 2011: Operation of AGATA In-beam Campaign10.2011: Operation of AGATA In beam Campaign

    4.2013: Dismounting of AGATA

    1512

  • Fast Beam Campaign how to dissolve complexity....

    Conclusions so far:Conclusions so far:

    LYCCA-0 commisioning and some up-front experiments needed before AGATA b f ll i l t dAGATA can be successfully implemented

    Call for additional proposals from the wider community is mandatory

    Concentration on outstanding and well focused physics themes is adequateConcentration on outstanding and well focused physics themes is adequate

    Balancing the needs for beam time and resources within AGATA, PRESPEC, NUSTAR and all other GSI/FAIR communities on a mid-term basis is essential

    Flexibility is required to deal with time delays

    1513

  • Fast Beam Campaign great perspectives....

    LYCCA-0 provides mass resolution up to A ≈ 100

    AGATA increases γ-sensitivity 10x ...100xSIS/FRS intensities

    increase up to ≈ 10x

    Tracking det. and EDAQ upgrade increase max.

    Physics Case Very attractive and competitive spectroscopy pg

    rate and throughput 10x themes

    1514

    Unique combination of beams, set-up and people

  • AGATA Fast Beam Campaign

    Urgent tasks:Urgent tasks:

    Define the optimal AGATA Detector geometry - Physics needs (fast RIB experiments, UNILAC programme?)

    - Detector qualities (efficiency, position sensitivity, response, tracking)

    Additi l d t t (EUROBALL Cl t MINIBALL HECTOR)- Additional gamma detectors (EUROBALL Cluster, MINIBALL, HECTOR)

    - Environmental constraints (space, access, radiation, media)

    Specify the EDAQ concept

    1515

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