EXOGAM2 + NEDA G. de France

NEDA meeting, Istanbul, June 2009 G. de France G. de France, GANIL EXOGAM2 Outline  Scientific Motivations for EXOGAM2 (/SP2 LoI)  Limits of EXOGAM  The technical proposal  Timescale, cost and manpower  Coupling EXOGAM2 and NEDA

NEDA meeting, Istanbul, June 2009 G. de France  Proton drip line studies and N~Z nuclei: Reaction mechanism studies using borromean nuclei ( 6,8 He) Rare eath nuclei in the A~130 region: superdeformed ground state MED in A=58, T=1 triplet and charge symmetry breaking terms above 56 Ni T=0 pairing and a new coupling scheme below 100 Sn EXOGAM and the Neutron Wall Always need charged particle detection in addition to neutrons

NEDA meeting, Istanbul, June 2009 G. de France  Proton drip line studies and N~Z nuclei:  Self-conjugate systems and isospin symmetry  Structure around 100 Sn  T=0 pairing  Location of the p-drip line  Spectroscopy beyond the drip line  Fundamental symmetry:  BR measurements to test the CVC hypothesis  Neutrino-less double beta-decay  Experiment:  Fusion evaporation or pair transfer reactions; require neutron and charged particle detection  Beta decay (DESIR): 94 Ag, 98 In, 100 Mo EXOGAM2 Scientific Motivations (1)

NEDA meeting, Istanbul, June 2009 G. de France  Shell structure of neutron-rich nuclei:  Evolution of effective nuclear interaction (monopole and multipole terms)  Quenching of known shell gaps/new ones  Collectivity/Onset of deformation  Shape phase transition and dynamical symmetries  Experiment :  78 Ni and 132 Sn regions: adjacent odd isotones/isotopes populated in DIC in inverse kinematics (complementarity with LNL; with thick target experiments)  Require the coupling to a recoil spectrometer (VAMOS) EXOGAM2 Scientific Motivations (2)

NEDA meeting, Istanbul, June 2009 G. de France  Shapes and « high-spin » spectroscopy:  Shapes and shape coexistence  Rotations vs vibrations  Collective modes with large neutron excess  New high rank symmetries  Jacobi shape transition  Experiment:  Low energy excitation spectra (yrast and non-yrast states); 0+ excited states; lifetimes; quadrupole moments; isomers (decay and rotational bands above)  Projectile Coulomb excitation; fusion evaporation; DIC;…  Need VAMOS at 0° and Gas Filled Mode; neutron and charged particle detectors EXOGAM2 Scientific Motivations (3)

NEDA meeting, Istanbul, June 2009 G. de France  Collective modes:  From « pure » 2qp states to quadrupole or octupole collective states  At higher energy (few MeV above yrast):  properties of Giant Resonances like GDR  Damping mechanisms of collective modes  Charge equilibration time  Symmetry energy  Onset of chaos  Experiment:  Coulomb excitation of n-rich beams (Sr, Kr, Zr, Sn ) on light targets: fusion evaporation with n-rich beams (Kr, Xe, Sn)  Measurement of gamma-ray energies, strength and angular distribution  Need pure beam EXOGAM2 Scientific Motivations (4)

NEDA meeting, Istanbul, June 2009 G. de France  Spectroscopy of heavy elements:  Identifying the s.p. orbitals involved in the configuration of these nuclei and their role  Collectivity on nuclei located around the small islands of deformation (centred around 254 No and 270 Hs).  The role of K-isomerism on “stability” in this mass region.  The angular dependence of the fission barriers.  Experiment :  Coulomb excitation of 254 No  RDT following fusion evaporation  EXOGAM+VAMOS  High intensity stable beams EXOGAM2 Scientific Motivations (5)

NEDA meeting, Istanbul, June 2009 G. de France EXOGAM2 Limits of EXOGAM  PSA originally planned and needed (resolution)  Rate limitation (DT32, common dead time readout mechanism)  D-size VXI maintenance  GANIL context:  SIBs  high intensity stable beams; inverse kinematics; fast beams…  RIBs  fragmentation (fast beams)  SPIRAL2 context:  SIBs  high intensity stable beams ; inverse kinematics  RIBs  access; reliability; robustness  AGATA context: achievements  Need urgently an upgrade to realize the physics programme  New design specifications to cope with the identified constraints

NEDA meeting, Istanbul, June 2009 G. de France EXOGAM2 technical proposal Introduction  The EXOGAM2 technical proposal Motivations and design specifications General architecture CSP connection box The NIM digitizer The Global Trigger and Synchronization DAQ Status

NEDA meeting, Istanbul, June 2009 G. de France Design specs Motivations:  Better  -ray location => digital electronics  Dead time reduction => triggerless mode  High counting rates => ADONIS method  VXI issues (reliability, obsolescence, expertise) => NIM digitizer Design specifications:  Parameters: - Inner: E6MeV Icr<50kHz), E20MeV, Time, Time Stamping - Outer: E6MeV, Emirror, T30, T60, T90 - BGO : Energy (range 20MeV, resolution 15%), Veto - CSI: Energy (range 20MeV, resolution 15%), Veto  Counting rate and readout: - Maximum counting rate: 100kHz per crystal - Readout: about 60 Bytes per crystal => 6 MB/s per crystal  3 trigger modes: - Triggerless: Crystal parameters validation by inner discriminator - Event trigger: Event validation by EXOGAM multiplicity - Common dead time: Event validation by EXOGAM multiplicity and ancillary detectors signals  Coupling EXOGAM2 with ancillary detectors: - Global Trigger System - AGAVA

NEDA meeting, Istanbul, June 2009 G. de France Differential Preamplifiers 16 clovers = 64 crystals Global Trigger and Synchronization 1 GTS supervisor and 16 GTS mezzanines 1 link per NIM board ( 6 MB/s per crystal) DAQ KALMAN processing 1 link per NIM board ( 2 Gb/s) 7 differential analog signals per crystal ICR < 100kHz per crystal 1 optical link per NIM board 8 fast ADCs 14 bits, 100MHz Power GTS mezzanine FPGA Virtex 4 (or 5,6) Inspections Ethernet Slow Control Ethernet Gbit Optical Link (ADONIS) START/STOP Digitizer and processing 1 crystal / NIM board => 64 NIM boards Switch Ethernet General architecture

GTS topoly GTS mezzanine The GTS supervisor sources: - the 100 MHz common clock - the global 48 bits timestamps (clock and event counters) - the trigger fast commands (validation, reject, reset, calibration) The GTS supervisor sinks: - the local trigger requests - the error notifications The GTS mezzanine provides: - the clock, timestamps and trigger commands for the LLP carriers - the mechanism for tagging and storing the local trigger requests - the trigger matching algorithm - the mechanism for phase equalization at the nodes (LLPs, ADCs) The GTS mezzanine routes: - the tagged local trigger requests and LLP status to the GTS node The window based trigger matching:The AGATA readout column *At the time of the validation arrival (trigger input, from the current value of GTS clock the trigger latency is subtracted. The GTS and synchronization

Data Flow: - Parameters from the digitizers are merged into an Event Builder based on the Narval acquisition system. - Narval is currently used at GANIL Slow Control: - It consists in doing the setup and the monitoring of the digitizers and the GTS boards - The Slow Control Core connects boards and GUI; it acts as a server. - SOAP/XML network protocol and Web Service Description Language interface feature the communication between SCC and GUI. Run Control: -It controls and monitors the DAQ components -Actions such as Initialization, setup, start and stop are performed through the RC -The Run Control Core connects Data Flow components and GUI; it acts as a server -SOAP/XML protocol and WSDL interface feature the communication between RCC and GUI. Analysis and calibrations tools: - Tools are based on GANIL Root Utilities and Vigru visualization software Data acquisition system

NEDA meeting, Istanbul, June 2009 G. de France Future GANIL DAQ Gigabit switch EXOGAM2 FEE Exogam Event builder NEDA VAMOS VXI MUST2 VXI Gigabit switch Event builder Event dispatcher Storage Data Analysis ~60 MB/sec

NEDA meeting, Istanbul, June 2009 G. de France Coupling EXOGAM-NEDA Some basic specifications  High rates  digital electronics; sampling freq.  n-deficient nuclei => NEDA=Trigger/Ch. Part. = Veto or « tagger »  n-rich => NEDA=veto/Ch. Part. = Trigger  need to generate and accept trigger signal  Trigger or veto: need to identify a neutron in a huge gamma flux  PSA

NEDA meeting, Istanbul, June 2009 G. de France  EXOGAM collaboration: GANIL, IN2P3 (CSNSM, IPNO), IRFU, KTH Stockholm, University of York, Liverpool, Surrey, Manchester, STFC Daresbury, JYFL, ATOMKI, GSI, Warsaw)  EXOGAM2 SPIRAL2-PP participants: GANIL, CNRS(LIST/DETECS/SSTM), CEA, STFC, U. of Liverpool, ATOMKI, GSI, INRNE  INFN  IUAC New Delhi  Mumbai  Krakow  ILL? EXOGAM2 Status of the collaboration

NEDA meeting, Istanbul, June 2009 G. de France Estimated cost for the electronics of 16 clovers ItemQuantityPrice/unit (k€)Total price (k€) Preamplifiers and interconnection box (digitizer + GTS) NIM Crate NIM module (8 FADCs) GTS mezzanine ATCA GTS: Shelf Shelf manager Power blocks GTS mezzanine GTS supervisor Switch 48 voies122 Sub total (k€)540 Estimated manpower (in men.monthes) ItemPrototype Implementation Training Mass production and tests Preamplifiers and interconnection box 205 NIM module (hardware, VHDL processing, GTS implementation) 9020 ATCA GTS155 Sub-total (m.m)12530 TOTAL (m.m) 155 Finances and manpower requirements Cables: MDR 13 pairs TOTAL (k€)559

NEDA meeting, Istanbul, June 2009 G. de France  250 k€ France  72 k€ from SP2-PP  66 k€ from EXOGAM (UK, I, CEA)  16 k€ from Sweden  50 k€ CPER  75 k€ ILL??  529 k€ in hands/promised  30 k€ to be found (GTS cost reduction?) EXOGAM2 Status of finances

NEDA meeting, Istanbul, June 2009 G. de France  Great physics case with EXOGAM+NEDA which also need a charged particle detction setup  EXOGAM2 is progressing: NUMEXO2, collaboration, funding,MoU  Issue: high rates (gammas)  PSA  Trigger flexibility: triggerless+data merging after pre processing or triggered systems  Time distribution => need a system which ensures:  Time stamping  Clock distribution  Trigger decision  True (at GANIL) for several SPIRAL2 detectors => synergies  Can we use/adapt EXOGAM2 electronics for NEDA? Conclusions « a la GTS »