agata: advanced gamma tracking array
DESCRIPTION
AGATA: Advanced Gamma Tracking Array. Introductions Presentations. John Simpson International Project Leader Chair of AGATA management Board Technical co-ordinator International status and overview Paul Nolan Chair of AGATA Steering Committee UK Spokesperson Status of this grant - PowerPoint PPT PresentationTRANSCRIPT
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AGATA: Advanced Gamma Tracking Array
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Introductions Presentations• John Simpson
– International Project Leader– Chair of AGATA management Board– Technical co-ordinator– International status and overview
• Paul Nolan– Chair of AGATA Steering Committee– UK Spokesperson– Status of this grant
• Jonathan Strachan– Project manager– AGATA Mechanical Engineer & WP6 leader
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International status and Overview
• What is AGATA?• AGATA Demonstrator Phase• Status• UK Contribution• New MoU (exploitation and development)• Physics Campaigns
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Neutron rich heavy nuclei (N/Z → 2)• Large neutron skins (r-r→ 1fm)• New coherent excitation modes• Shell quenching
132+xSn
Nuclei at the neutron drip line (Z→25)• Very large proton-neutron asymmetries• Resonant excitation modes• Neutron Decay
Nuclear shapes and high spins• Exotic shapes and isomers•Hyperdeformation • Coexistence and transitions
Shell structure in nuclei• Structure of doubly magic nuclei • Changes in the (effective) interactions
48Ni100Sn
78Ni
Proton drip line and N=Z nuclei• Spectroscopy beyond the drip line• Proton-neutron pairing• Isospin symmetry
Transfermium nucleiShape coexistence
New challenges in Nuclear Structure
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Tracking Arrays based onPosition Sensitive Ge Detectors
Large Gamma Arrays based onCompton Suppressed Spectrometers
40 — 20 % ( M=1 — M=30)
10 — 5 % ( M=1 — M=30)
EUROBALL AGATA
Idea of Idea of -ray tracking-ray tracking
Huge increase in sensitivityHuge increase in sensitivity
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Long Range Plan 2004Recommendations and priorities
• In order to exploit present and future facilities fully and most efficiently, advanced instrumentation and detection equipment will be required to carry on the various programmes.
• The project AGATA, for a 4-array of highly segmented Ge detectors for g-ray detection and tracking, will benefit research programmes in the various facilities in Europe. NuPECC gives full support for the construction of AGATA and recommends that the R&D phase be pursued with vigour.
Long Range Plan 2009/10AGATA the major instrument
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AGATAAGATA(Design and characteristics)
4 -array for Nuclear Physics Experiments at European accelerators providing radioactive and stable beams
Main features of AGATA
Efficiency: 43% (M =1) 28% (M =30)today’s arrays ~10% (gain ~4) 5% (gain ~1000)
Peak/Total: 58% (M=1) 49%
(M=30)today ~55% 40%
Angular Resolution: ~1º FWHM (1 MeV, v/c=50%) ~ 6 keV !!!today ~40 keV
Rates: 3 MHz (M=1) 300 kHz (M
=30)today 1 MHz 20 kHz
• 180 large volume 36-fold segmented Ge crystals in 60 triple-clusters • Digital electronics and sophisticated Pulse Shape Analysis algorithms allow• Operation of Ge detectors in position sensitive mode -ray tracking
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The AGATA CollaborationMemorandum of Understanding 2003
Research and Development phaseBulgaria: Univ. Sofia
Denmark: NBI Copenhagen
Finland: Univ. Jyväskylä
France: GANIL Caen, IPN Lyon, CSNSM Orsay, IPN Orsay, CEA-DSM-DAPNIA Saclay, IreS Strasbourg
Germany: GSI Darmstadt, TU Darmstadt, Univ. zu Köln, LMU München, TU München
Hungary: Debrecen
Italy: INFN and Univ. Firenze, INFN and Univ. Genova, INFN Legnaro, INFN and Univ. Napoli, INFN and Univ. Padova, INFN and Univ. Milano, INFN Perugia and Univ. Camerino
Poland: IFJ PAN Krakow, SINS Swierk, HIL & IEP Warsaw
Romania: NIPNE & PU Bucharest
Sweden: Chalmers Univ. of Technology Göteborg, Lund Univ., Royal Institute of Technology Stockholm, Uppsala Univ.
UK: Univ. Brighton, STFC Daresbury, Univ. Edinburgh, Univ. Liverpool, Univ. Manchester, Univ. Paisley, Univ. Surrey, Univ. York
Turkey: Univ. of Ankara, Istanbul University
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The First Step:The AGATA Demonstrator
1 symmetric triple-cluster5 asymmetric triple-clusters
36-fold segmented crystals540 segments555 digital-channels
Eff. 3 – 8 % @ M = 1
Eff. 2 – 4 % @ M = 30
Full EDAQwith on line PSA and -ray trackingIn beam CommissioningTechnical proposal for full array
Cost 6.7 M€ Capital
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Ingredients ofIngredients of --TrackingTracking
Pulse Shape Analysisto decompose
recorded waves
Highly segmented
HPGe detectors
·
·
··
Identified interaction
points(x,y,z,E,t)i
Reconstruction of tracks
e.g. by evaluation of permutations
of interaction points
Digital electronicsto record and
process segment signals
1
2 3
4
reconstructed -rays
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First AGATA triple-detector @ IKP Cologne
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Asymmetric AGATA Triple Cryostat
Challenges: - mechanical precision - heat development, LN2 consumption - microphonics - noise, high frequencies
- integration of 111 high resolution spectroscopy channels- cold FET technology for all signals
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Detectors• 3 symmetric detector delivered and
operational• 15 asymmetric capsules ordered R&D phase• 12 operational• 11/12 ordered next phase• Deliveries 2009/2010• More orders (France and Italy soon)
• 5 triple cryostats ordered 2(3) operational• 5 test cryostats available (scanning, CAT tests,
electronics tests.)
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Electronics and Data Acquistion
• Preamplifiers (Ganil, Milano, Cologne)• Digitizers• Pre-processing• Trigger• DAQ (tracking, storage, GUI)
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AGATA Digitiser Module 36+1 channels, 100 MhZ, 14 bits
(Daresbury – Liverpool - Strasbourg)
• 18 assembled
•7 in operation in Legnaro
Prototype Segment Board
(2 boards per crystal)First production digitizer at Daresbury
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Pre-processing (Position)
Management of team onlyStatus: Production for 18
detector/capsules in progress– Carrier cards- 25 delivered (8 mid-June). 9
commissioned and working– Segment mezzanines- 50 delivered (60 mid-June)
33 working
–Electronics not on critical path!!
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AGATA Demonstrator at PRISMA
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Status of the installation• Basic local infrastructure complete
• Full chain of EADQ for one triple complete
• Full chain for two triples now• Commissioning with a simple ancillary
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UK Contribution
• Project Management• Digitizer electronics• EDAQ specification• Mechanical Design• Detector characterisation
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International Contribution to R&D phase
• MoU 2003• Total capital 6.7M€ (ex VAT)• UK commitment EPSRC (£2.3M)
capital 0.95 M€ (ex VAT), FTE 46.5
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AGATA Management BoardJ.Simpson (Project Manager)
D.Bazzacco, G.Duchêne, P. Reiter, A.Gadea, J.Nyberg, Ch. Theisen, E. Farnea
AGATA Steering Committee
G.deAngelis, A.Atac, F. Azaiez, D.Balabanski, A, Bracco, D.Bucurescu, B.Cederwall,
J. Gerl, J.Jolie, W.Korten R.Julin, W.Meczynski, P.M.Walker
Chairperson: P.J. Nolan, Vice Chairperson: B. Cederwall
AGATA Working Groups and leaders
AGATA Teams
Data analysisO.Stezowski
MechanicalIntegration
J. Valiente Dobon
PSAR.Gernhaeuser/P.Desesquelles
Gamma-rayTracking
A.Lopez-Martens
Elec. and DAQintegration
P. Bednarczyk
Mechanical design
J.StrachanDigitisationP.Medina
Data acquisitionX.Grave
Detector and Cryostat
B. Bruyneel
Detector data base
K.Hauschild
Impact on performance
M.Palacz
R & D on gammaDetectorsD.Curien
Global clock and Trigger
M.Bellato
Detector Characterisation
A.Boston
Physics & exp. simulationE.Farnea
Devices for key Experiments
N.Redon
InfrastructureP.Jones
Pre-processing
I.LazarusRun Control
& GUIG.Maron
PreamplifiersA.Pullia
Simulation andData Analysis
J.Nyberg
Ancillary detectors
and integrationA.Gadea
Design andInfrastructureG. Duchêne
Front-endProcessingD.Bazzacco
Detector moduleP.Reiter
DataAcquisitionCh. Theisen
Project management:Project management:AGATA OrganisationAGATA Organisation
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Commissioning in Legnaro
• Series of Source and in-beam tests• March (no ancillary)• June-July (Dante –MCP) • Further 20 days requested from Sept• AGATA+DANTE+Interface• AGATA+PRISMA (tandem)• AGATA+PRISMA (ALPI beams)
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In-beam run March 2009
• Aims• To test the detector in real experiment
conditions• DAQ
– Pre-processing electronics– On-line analysis
• Acquire useful data for off-line optimization of the system
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RUNNING!
Pre-processing
PSA
Tracking
11:4217/03/2009
• 30Si@70MeV + 12C
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Non-segmented detector1823 keV ??
DET
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AGATADET
SEG
17.7 keV
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DET
SEG
MGS
14.6 keV
AGATA
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AGATADET
SEG
MGS
JASS
12.5 keV
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Run last week• Reaction is 56Fe on 208Pb,
• One triple cluster and DANTE
• DAQ consists of 11 nodes. PSA, tracking and Doppler correction performed on line considering the central position of DANTE.
• The spectra show the 2+->0+ of 56Fe at 847 keV.
• No clear info about the narrowing of the peak.
• The trigger is the OR of DANTE plus one of the crystal.
• The coincidence rate is around 150Hz.
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Fantastic progress
• Immediate aims and issues– Test with ancillary detector– Test with 2 or more triples
(2nd installed next week)– Start physics experiments
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Issues AGATA collaboration
• Detectors• Characterisation• Production of electronics• Staffing• Organisation of the next phase• New MoU• Siting
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New MoU• In operation• Signed by STFC• Defines build up, operation and
exploitation of full project• New management structure• Defines in more detail the build up to a
1/3 array• UK signed up bid for 2460 k€ capital 550
FTE (months)• This grant 893 k€ capital 470 FTE
(months)
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New MoU committments• UK this grant• Other major countries
– All countries on different timescales– Germany 1M€, bid again 2012– Italy 2 triple systems assured, 5 year plan INFN being
submitted– France Bidding now (3 triple systems initially)
• Successful defence last week IN2P3
– Sweden Bid when relationship to FAIR clear– Other countries (Turkey, etc.)
• Key fact: Will have 10 triple clusters by end 2010
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The siting issues
• At time of grant submission• LNL- Ganil- GSI ~15 month campaigns• New timescales• Ganil Shutdown for SPIRALII installation mid 2011-early 2012• Re-evaluation of schedule
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The current plan• Under discussion, ASC-Labs-
Collaborations (NuSTAR/PRESEPC)• Meeting of AGATA, Lab directors, PAC
Chairs last week• GSI as the next site• If GSI then:
– Run in LNL until June 2011– Earliest start GSI October 2011– Earliest start GANIL March 2013
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Plan for AGATA
Q3 Q4 Q1 Q2 Q3 Q4 Q1 Q2 Q3 Q4 Q1 Q2 Q3 Q4 Q1 Q2 Q3 Q4 Q1 Q2 Q3 Q4
LegnaroSetupPhysicsNo. detectors 18-21
GSIMove/SetupPhysicsNo. detectors 30-36
GANILMove/SetupPhysicsNo. detectors 48-60
20142009 2010 2011 2012 2013
Current planning
•Affects this grant
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THANKS
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The AMB The ASC
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Experimental conditions and challenges
• Low intensity• High backgrounds• Large Doppler broadening• High counting rates• High -ray multiplicities
High efficiencyHigh sensitivityHigh throughputAncillary detectors
FAIRSPIRAL2HIE-ISOLDEEURISOLECOS
Need instrumentation
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LEGNARO
GANILSPIRAL 2
AGATA
HIE-ISOLDE
FAIR
Jyvaskyla
-array for Nuclear Physics Experiments at European accelerators providing radioactive and stable beams
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AGATA detector detailDetector Pool last updated: 09.06.09 Detector
Serial Nr location Activity Delivery Report-Date operational
S001 73838 TestC5 Legnaro Electronic test 01.04.04 ? ok S002 73821 IKP IKP cryostat test 01.04.04 ? ok S003 73839 TestC6 Orsay – Scanning finished 01.12.04 ? ok A001 73952 ATC10034 Legnaro - ATC1 01.06.06 01.08.06 ok A002 74030 IKP IKP - Commissioning ATC3 01.06.07 22.04.08 ok A003 74009 ATC10035 IKP - Commissioning ATC2 06.11.07 01.03.08 ok A004 74095 Ankara accredition 01.07.08 Not tested A005 73949 Saclay Saclay 18.11.08 01.02.09 ok A006 74096 Saclay Saclay 28.11.08 01.04.09 ok B001 74034 returned Canberra - Repair 22.01.09 06.02.09 no B002 73979 ATC10034 Legnaro - ATC1 01.08.06 01.11.06 ok B003 74026 ATC10035 IKP - Commissioning ATC2 01.06.07 01.08.07 ok B004 74010 Ankara accredition 05.06.08 ---- Not tested B005 74065 IKP IKP – leakage current 05.03.09 no B006 74076 IKP IKP – leakage current 16.07.08 17.10.08 no C001 73899 TestC3 Liverpool - Scanning 01.12.05 01.05.06 ok C002 73951 ATC10034 Legnaro - ATC1 01.06.06 01.10.06 ok C003 74013 vault IKP - Commissioning ATC3 09.10.08 ---- no C004 74036 Ankara accredition 01.09.07 21.12.07 Not available C005 74033 TestC4 IKP - Commissioning ATC2 11.12.07 22.09.08 ok C006 74115 TestC IKP foreseen ATC3 30.04.09 09.06.09 ok
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AGATA Front end electronics Digitizers: 18 assembled (UK), 7 operational in Legnaro, 3 Turkey (need to go to Strasbourg), 5 in Strasbourg, 3 in UK to go to Strasbourg. Pre-processing in production. Will be 40 carrier cards in total. Note, 2 carrier cards needed per crystal. 6 made by Padova. 34 in production in IPNO. 25 carrier cards have been delivered (rest mid June). Under test (9 tested and working).Segment mezzanine, 110 being manufactured (CSNSM), 50 delivered (60 mid June), 33 working early June. Note, need 7 per crystal since also being used for the core.Linco (card per carrier card to transmit data to processor/PSA farm), 6 in use, 10 in production, end June.GTS: one needed per crystal, plus a few for triggering and interfacing to ancillary detectors; 20 in production (out of 35), first modules expected beginning of July.Online digital trigger installed and tested: used in the end-May test (coincidence Dante-Ge)Overall aim to have a system for two triple clusters before summer vacations (almost ready now)Test system is being built up in Orsay.
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Characteristation and Scanning
Two symmetric capsules
scanned in Liverpool
Further scanning systems
Orsay operational (A005 or A006)
C001 scanning in progress in Liverpool662
keV
374keV
288keV
Coincidence scan for 3D position determination
Comparison of real and calculated pulse shapes. Validate codes.