AGATA: Advanced Gamma Tracking...
Transcript of AGATA: Advanced Gamma Tracking...
AGATA: Advanced Gamma Tracking Array
Presented byAndres Gadea
INFN-LNL
AGATA WEEK SUMMARY AND STATUS OF THE PROJECT
Many Apologies by the Project Manager John Simpson
6660 high-resolution digital electronics channels High throughput DAQPulse Shape Analysis position sensitive operation modeγ-ray tracking algorithms to achieve maximum efficiencyCoupling to ancillary detectors for added selectivity
AGATAAGATA(Advanced GAmma Tracking Array)
180 hexagonal crystals 3 shapes60 triple-clusters all equal
Inner radius (Ge) 23.5 cmAmount of germanium 362 kgSolid angle coverage 82 %36-fold segmentation 6480 segmentsSingles rate ~50 kHzEfficiency: 43% (Mγ=1) 28% (Mγ=30)Peak/Total: 58% (Mγ=1) 49% (Mγ=30)
The First Step:The AGATA Demonstrator
Objective of the final R&D phase 2003-2008
1 symmetric triple-cluster5 asymmetric triple-clusters
36-fold segmented crystals540 segments555 digital-channelsEff. 3 – 8 % @ Mγ = 1Eff. 2 – 4 % @ Mγ = 30
Full EDAQwith on line PSA and γ-ray trackingIn beam CommissioningTechnical proposal for full array
Cost ~ 6 M € Capital
The AGATA CollaborationMemorandum of Understanding 2003-07: R&D phase
• Bulgaria: Univ. SofiaDenmark: NBI Copenhagen
• Finland: Univ. JyväskyläFrance: GANIL Caen, IPN Lyon, CSNSM Orsay, IPN Orsay,
CEA-DSM-DAPNIA Saclay, IPHC StrasbourgGermany: HMI Berlin, Univ. Bonn, GSI Darmstadt, TU Darmstadt,
FZ Jülich, Univ. zu Köln, LMU München, TU MünchenHungary: ATOMKI DebrecenItaly: INFN-LNL, INFN and Univ. Padova, Milano, Firenze,
Genova, Napoli, Poland: NINP and IFJ Krakow, SINS Swierk, HIL & IEP WarsawRomania: NIPNE & PU BucharestSweden: Univ. Göteborg, Lund Univ., KTH Stockholm, Uppsala Univ.Turkey: Univ. Ankara, Univ. IstanbulUK: Univ. Brighton, CLRC Daresbury, Univ. Keele, Univ. Liverpool,
Univ. Manchester, Univ. Paisley, Univ. Surrey, Univ. York
The AGATA OrganisationThe AGATA Organisation
AGATA Management BoardJ.Simpson (Project Manager)
D.Bazzacco, G.Duchêne, P. Reiter, A.Gadea, J.Nyberg, Ch. Theisen
AGATA Steering Committee
G.deAngelis, A.Atac, F. Azaiez, D.Balabanski, D.Bucurescu, B.Cederwall,J. Gerl, J.Jolie, R.Julin, W.Meczynski,, M.Pignanelli, G.Sletten, P.M.Walker
Chairperson: W.Korten (and EURONS) Vice Chairperson: P.J. Nolan
AGATA Working Groups
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.Strachan
DigitisationP.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-processingI.Lazarus
Run Control & GUI
G.Maron
PreamplifiersA.Pullia
Simulation andData Analysis
J.Nyberg
Ancillary detectors
and integrationA.Gadea
Design andInfrastructureG. Duchêne
Front-endProcessingD.Bazzacco
Detector moduleP.Reiter
DataAcquisitionCh. Theisen
Some results from the present AGATA Week
Last detectors failed CATdue to microphonics
Good News from the Detector Group
glued core feed-throughStrong microphonics withoutglued core contact (Amplitude > 1 V)(C004)
After gluing core feed-throughno microphonics with glued core contact
FWHM on core signal of C004:2.21 keV @ 1.3 MeVA004:2.24 keV @ 1.3 MeV
Source of microphonics located in detector capsulenot in the cryostat
Andreas Wiens – IKP Cologne
C004
Status of detectors
11 Detectors available if microphonics problem solved
3 encapsulated Ge crystals in one cryostat111 preamplifiers with cold FETLN2 dewar, 3 litre, cooling power ~8 W
AGATA triple-detector module
Hardware and Electronics:
3 Cryostats almost completed
2 Cryostats in production
First Triple Cluster being assembled in Cologne
Preamplifier -Time Over Threshold
“reset” mode (by TOT technique)
“pulse-height” mode (by ADC)
Energy Resolution (fwhm)in pulse-height mode
Resolution (fwhm)in TOT reset mode
4.440 MeV (12C) 104 keV 2.34 % 104 keV 2.34 %
~5.6 MeV 10.5 keV 0.14 % 18.8 keV 0.34 %
~6.1 MeV 15.1 keV 0.17 % 17.1 keV 0.28 %
7.6312 MeV (Fe) 11 keV 0.14 %
7.6456 MeV (Fe) 11 keV 0.14 %
8.9984 MeV (Ni) 15 keV 0.17 % 18.9 keV 0.21 %
18.8 keV(29.4 keV
for the double-peak)
0.25 %(0.38 % for
the double-peak)
241Am+Be spectrum
Francesca Zocca - Milano
S002 vs S003
Liverpool:S002, S003 finished,Ready for asymmetric detectors
Orsay and GSI not yet operative
Detector Scanning and Signal Basis Validation
Scan data vs Jass
Scan data vs MGS
3D scan1714 positions
Pulse Shape Analysis - Status<Performance>Algorithms
Grid search (GS)
Matrix method (MM)
Particle Swarm Optimization (PSO)
Recursive Subtraction (RS)
Artificial Neural Network (NN)
(Wavelet Transformation)(Genetic Algorithm (GA))
Single interaction :
sigma < 2mm, (~1ms)
Double interaction (crystal):
sigma < 5 mm, (~2ms)
Double interaction (segment):
sigma < (3 - 8 mm) (~10ms)
N interactions:
not tested
Front end electronics• Digitizers for 18 detectors Patrice Medina
– IPHC Strasbourg, STFC Daresbury, Uni .Liverpool– Production done; 7 units ready
• Production and test of new pre-processing electronics• ATCA Carrier Marco Bellato
– INFN-Padova, IPN Orsay– 80 % tested
• Segment processing mezzanine Denis Linget– CSNSM Orsay– 90 % tested
• Integration test of Carrier with segment and GTS mezzanines done in Padova at the end of October
• Thanks to the effort of the working teams and to the injection of consistent amount of new man power.
Plan devised after Orsay AGATA week is ~OK
Digitiser in Production
• All the electronics boards manufactured• All mechanics components manufactured• 7 sets of Digitiser Modules assembled• 1 Digitiser delivered to Strasbourg• 4 Digitisers will be delivered end November
Excellent Performance:SNR average value 75.45 dB. ENOB average value 12.24 bits Static Power consumption: 240 W
First Production Prototype
The new ATCA Carrier
Delivered end July 20072 prototypes being tested in Padova
3 prototypes in tests since end July 07
The new segment mezzanine
General Schedule for 2008• Q1
– Reworked ATCA Carrier– Reworked Segment Mezzanines– New Core Mezzanine
• Q2– Electronics for one detector; VHDL revision -1– Start series production of all modules
• 36+ ATCA carriers IPN Orsay• 108+ Segment Mezz. CSNSM Orsay• 18+ Core Mezz. CSNSM Orsay• 30+ GTS mezzanines INFN Padova
• Q3– Electronics for one triple cluster; VHDL revision 0
• Q4– Phased delivery of final electronics
1 15 PSA FARM EB + TRACKING (Blades)
Storage Backbone (> 48 ports) GEthernetoptional
1 U pizzaboxes
Data Flow Backbone (> 48 ports) GEthernet
DS1 DS2 DS3
Cisco 6500Main LNL Switch
And Router
To WAN2 x Gbps
1 Gbps
2
SAN
disk serverSRM
Storage Resource ManagerGrid data mover
SRM should have a public IP
DAQ Services
Run Control, Narval Services, GUI, Experiment Portal, etc.Some of these services could have a public IP
AGATA DAQ: General Layout at LegnaroTo
fron
t end
ele
ctro
nics
Agata Data Flow (ADF) Library
Frame = Key + data (input/output of algorithms)
LikelyTo change
VersionVers.
AgataKey (0,0): 4 bytes frame length
AgataKey (1,0): 8 bytes + message type
AgataKey (2,0): 12 bytes + event number
AgataKey (3,0): 20 bytes + timestamp
First release ready and tested on NarvalEncapsulation of data format details
• Some algorithms work only with the key part
• Frames could be composite or not(event builder, merger)
Zoom all
INP - Lyon
Detector Support System
Integrated control and monitoring system for: Low Voltage High VoltageLiquid Nitrogen
CEA Saclay and GSI
Construction and programming of the system and GUI ongoing
HV and LVPS AGATA modules
CEA Saclay and GSI
Design and Construction of the HV&LV power supply modules ongoing
AGATA Design and Construction
180 geometry definedConceptual design of 180 array doneSpecifications of infrastructure parts doneDesign of AGATA demonstrator for LNL doneFlanges manufacture done, support manufacture ongoingAssembly in LNL, 2008
Single FlangeManufacture
FLANGE PRODUCTION
Images of single flanges being manufactured at INFN – Padova,
Milano and LNL
5
Doppler correction capabilitiesAGATA
Demonstrator + PRISMA
INFN-Padova: Simulation of the AGATA Demonstrator- PRISMA setup
With the Demonstrator it will be possible to increase significantly the detection efficiency (with respect eg to
CLARA) while keeping a good quality of the spectra (essential point for the physics campaign).
Timescales for the AGATA demonstratorSix years research and development phase of AGATA
Start January 2003 ― End December 2008
• First three symmetric Ge crystals delivered in 2004• First triple module tested in-beam in summer 2005• Two symmetric crystals scanned for PSA by end 2006 • First electronics prototypes delivered in summer 2006• Twelve asymmetric Ge crystals delivered by end 2007• First scan of asymmetric crystals planned autumn 2007• First AGATA triple module ready by autumn 2007• Second generation electronics prototypes by autumn 2007• Commissioning of first full electronics chain in spring 2008• Commissioning of sub array at Legnaro from autumn 2008
Status and Evolution
First physics campaign at LNL in 2009Next campaigns at GANIL then GSI
MoU for AGATA construction from 2008Aim 1π in possible in ~2011Rate of construction depends on production capability and financingStages of physics exploitation, facility development
AGATA web pageAGATA web page
http://http://www.gsi.de/agatawww.gsi.de/agata//
LNL November 2007 Talks from this AGATA week soon available at
http://agata.lnl.infn.it/AgataWeek2007/
Many thanks to everybody!
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