The AGATA Project First 4pi -ray spectrometer built completely from Germanium detectors. Based on...
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Transcript of The AGATA Project First 4pi -ray spectrometer built completely from Germanium detectors. Based on...
The AGATA Project
First 4pi -ray spectrometer built completely from Germanium detectors.
Based on the novel technique of gamma-ray tracking.
Measures radiation in a very large energy range, with the largest possible efficiency and with a very good spectral response.
Several orders of magnitude more powerful than any current and near-future –ray spectrometer in the world.
Key parameters are (i) an energy range < 50 keV to > 10 MeV, (ii) a photo-peak efficiency of about 50% at 1 MeV, (iii) a position resolution of < 5 mm and (vi) a trigger rate of up to 1 MHz.
International experimental facility for the investigation of nuclear structure, nuclear astrophysics and fundamental interactions
NUPECC Meeting 16.3.07 J. Gerl GSI
AGATA Collaboration
Bulgaria: SofiaDenmark: CopenhagenFinland:: JyväskyläFrance: GANIL, Lyon, Orsay, Saclay, StrasbourgGermany: Berlin, Bonn, GSI, Darmstadt, Köln, MünchenHungary: DebrecenItaly: Padova, Milano, LNL, Firenze, Camerino, Napoli, GenovaPoland: Krakow, Swierk, WarsawRomania: BucharestSweden: Lund, Stockholm, UppsalaTurkey: Ankara, IstanbulUK: Daresbury, Brighton, Keele, Liverpool, Manchester,
Paisley, Surrey, York
Clustering of the nuclear structure community around a well organized and focused European research collaboration
NUPECC Meeting 16.3.07 J. Gerl GSI
AGATA Facility
Accepted Host Laboratories for the Demonstrator Phase 2008-2011:
LNL Legnaro GANIL Caen GSI Darmstadt ILL Grenoble
Interested Host Laboratories for the AGATA array:
FAIR / GSI Darmstadt SPIRAL 2 / GANIL Caen SPES / LNL Legnaro
REX-ISOLDE / CERN Geneve JYFL Jyväskylä ILL Grenoble ....
AGATA is intended to be an independent, movable Research Infrastructure to be coupled to stable and exotic ion beam accelerators in European host laboratories
NUPECC Meeting 16.3.07 J. Gerl GSI
•Develop 36 fold segmented encapsulated detector of right shape
•Develop cryostat for groups (“clusters”) of these detectors
•Develop digital electronics (700 channels)
•Finalise signal algorithms for energy, position and time
•Develop tracking algorithms
•Build demonstration unit to prove tracking in real situations
•Write technical proposal for full array
AGATA R&D Phase
Prototyping, testing, commissioning...
1 symmetric triple-cluster5 asymmetric triple-clusters
36-fold segmented crystals540 segments555 digital-channels
Eff. 3 – 8 % @ Mg = 1
Eff. 2 – 4 % @ Mg = 30
Full DACQwith on line PSA and -ray trackingTest Sites:GANIL, GSI, Köln, LNL
AGATA Demonstrator
Main objective of the R&D phase
Total 6006 k€ ex tax
Latest estimated cost:(3 sym + 15 asym.)
k€ ex taxDetectors 4033Electronics 1378DAQ 287D&I 103Ancillaries 24Data analysis 20Total 5844
Capital for the demonstrator:
15 + 3 detector system possible (just)
France, Germany, Italy, Sweden, Turkey and UK
AGATA Demonstrator Funding
• Symmetric detectors
– 3 delivered
• Asymmetric detectors
– 15 ordered, 4 delivered
• Triple cryostats
– 3 (soon 4) ordered
– 1st expected May
• Test cryostats
– 3 delivered
– 1 ordered (expected soon)
• Preamplifiers
– Core (cologne) Segment (Ganil. Milano) working
AGATA Detectors
Detectors in time...
AGATA Electronics
Preamplifier
Digitizer
Pre-processing, further development needed
Best resultγ detector, seg. mult. 1
Full dataset
Simulation
FWHM FWHM FWHM
Detector 32 keV 35 keV
Segment 11.1 keV 12 keV
PSA 4.8 keV 5.3 keV 5.0 keV
REACTION CHANNEL: (d,p)
PSASegDet
1382 keV
BEAM 48Ti 100 MeV
TARGET 48Ti + 2H 220 μg/cm2
Si detectorDSSSD
thickness 300 μm
segmentation 32 rings, 64 sectors
Absorber thickness 16 μm (Al)
AGATA symmetric triple-cluster
Köln in-beam test 2005
•180 geometry defined•Conceptual design of 180 array done•Details of HV, LN2 control etc. agreed, GSI test done•Design of AGATA demonstrator for LNL in final stage•Flanges manufacturing started•Assembly in LNL in autumn 2007
AGATA Design and Construction
Infrastructure in time...
• Next steps– Build up triple detector (s)– Ge detector characterisation – Pulse-shape analysis algorithms optimised – Gamma-ray tracking algorithms optimised – Electronics and DAQ prototypes and production
• Demonstrator ready by 2008• First physics campaign at Legnaro in late 2008• Further campaigns at GANIL, GSI, (ILL)
Status of the AGATA Project
What remains to be done
• Demonstrator ready in 2008
• Next phases discussed in 2005-2007• New LoI for construction phase 2005• First funding bids for production in D and I successful
• New MoU in preparation (required by D in 2007 to release funds)• New organisational structure• Start construction in 2008, 1 in possible in 2011• Rate of construction depends on production capability• Physics exploitation in stages, AGATA facility development
AGATA Project Evolution
How to proceed
AGATA Timetable
2001 2003 2005 2007 2009 2011 2013 2015 2017
Proof of Principle
R&D Demonstrator
Construction Phases
Comm.
Demonst.Physics
Phase 1Physics
Phase 2Physics
Full operationPhysics
Well structured organization based on LoIs and MoUs
NUPECC Meeting 16.3.07 J. Gerl GSI
2001 2003 2005 2007 2009 2011 2013 2015 2017
Preparatory phaseInvest: 6.5 M€Effort: 120 FTE
Well structured organization based on LoIs and MoUs
AGATA Cost and Effort
Construction phase Invest: 50 M€ Effort: 100 FTE
OperationCost: < 1 M€
TMR
I3 EURONS
EC FP7
NUPECC Meeting 16.3.07 J. Gerl GSI
• Too large for funding within national nuclear structure schemes• Too small for CNI funding in FP7 based on ESFRI criteria• Moving instrument, therefore no governance by any accelerator facility
AGATA Funding
• NUPNET as "natural" funding agency contact• ERANET+ as appropriate funding instrument in FP7• Possibly governance by NuPECC• Operation as independent Research Infrastructure eligible for TNA
support in FP7
AGATA is a moving Research Infrastructure developed, built and operated by a truly European research collaboration
A dedicated funding scheme supporting medium scale European projects is needed