Data Analysis Working Group

Data Analysis Working Group

• AGATA

• Tasks of the WG

• Schedule

Johan Nyberg, ADAWG meeting, June 12-13, 2003, NBI

AGATA The Advanced Gamma-Ray Tracking Array

• Next “big” European 4-array for NS studies at– Radioactive beam facilities: GSI, GANIL, SPES, … EURISOL

– High intensity stable beam facilities: LNL, Jyväskylä, ...

• Based on years of worldwide R&D on -ray tracking• Collaboration of 10 EU countries

– Funded by national agencies and by EU

• Constructed in phases– Demonstrator 2003 · · · 2007– Phases of Full Array · · ·

The AGATA Collaboration• Bulgaria: Univ. Sofia

• Denmark: NBI Copenhagen

• Finland: Univ. Jyväskylä

• France: GANIL Caen, IPN Lyon, CSNSM Orsay, IPN Orsay,CEA-DSM-DAPNIA Saclay, IReS Strasbourg

• Germany: HMI Berlin, Univ. Bonn, GSI Darmstadt, TU Darmstadt,

FZ Jülich, Univ. Köln, LMU München, TU München

• Italy: INFN/Univ. Padova, Milano, LNL,Firenze, Camerino, Napoli, Genova

• Poland: NINP & IFJ Krakow, SINS Swierk, HIL & IEP Warsaw

• Romania: NIPNE & PU Bucharest

• Sweden: KTH Stockholm, Lund University, Uppsala University

• UK: CLRC Daresbury, Univ. Brighton, Keele, Liverpool,Manchester, Paisley, Surrey, York

AGATA OrganisationSteering Committee ASC

Chair: Marcello Pignanelli, Milan14 representatives of 10 EU countries

Management Board AMBPM: John Simpson, Daresbury

7 Working Groups

DetectorModuleJ.Eberth

Local LevelProcessingR.Krücken

ConceptualDesign andGlobal LevelProcessingD.Bazzacco

Designand

InfrastructureG.Duchêne

AncillaryDetectorsand their

IntegrationA.Gadea

DataAnalysisJ.Nyberg

EUContact

W.Korten

Working Teams

AGATA SPECSTarget ValueSpecified forQuantity

170 mmInner free space (Ri)

3 MHz

300 kHz

Mγ = 1

Mγ = 30Maximum event rates

better than 1E/E < 1%Angular resolution ()

60 - 70 %

40 - 50 %

Eγ = 1 MeV, Mγ = 1

Eγ = 1 MeV, Mγ = 30Peak-to-total ratio (P/T)

50 %

25 %

10 %

Eγ = 1 MeV, Mγ = 1, < 0.5

Eγ = 1 MeV, Mγ = 30, < 0.5

Eγ = 10 MeV, Mγ = 1

Photo-peak efficiency (ph)

efficiency, energy resolution, dynamic range, angular resolution, timing, counting rate, modularity, angular coverage, inner space

Two candidate configurations

120 hexagonal crystals 2 shapes40 triple-clusters 2 shapesInner radius (Ge) 17 cmAmount of germanium 220 kgSolid angle coverage 74 % Singles rate ~70 kHz4440 channels

Efficiency: 38% (M=1) 21% (M=30)Peak/Total: 63% (M=1) 47% (M=30)

180 hexagonal crystals 3 shapes60 triple-clusters all equalInner radius (Ge) 22 cmAmount of germanium 310 kgSolid angle coverage 80 %Singles rate ~50 kHz6660 channels

Efficiency: 40% (M=1) 25% (M=30)Peak/Total: 65% (M=1) 50% (M=30)

Size of Ge crystals :length 90 mmdiameter 80 mm

AGATA Detectors

3 encapsulated crystals

111 preamplifiers with cold FET

~230 vacuum feedthroughs

Hexaconical Ge crystals90-100 mm long80 mm max diameter36 segmentsAl encapsulatation

0.6 mm spacing0.8 mm thickness

37 vacuum feedthroughs

Italy&Germany ordering 3 symmetric encapsulated crystals. Cryostat built by CTT in collaboration with IKP-KölnFirst triple cluster ready by mid 2004

The AGATA DemonstratorObjective of the final R&D phase 2003-2007

1 symmetric triple-cluster5 asymmetric triple-clusters 36-fold segmented crystals 540 segments 555 digital-channels

Eff. 3 – 8 % @ M = 1

Eff. 2 – 4 % @ M = 30

Full ACQ with on line PSA and -ray tracking

Test Sites: GANIL, GSI, Jyväskylä, Köln, LNL, …

Cost ~ 7 M €

Data rates in AGATA @ 50 kHz singles

100 B/ev

5 MB/s

200 MB/s

1.5 ··· 7.5 kB/ev

~ 100 MB/s

36+1 7.5 kB/event

380 MB/s

~ 200 B/segment~ 10 MB/s

100 Ms/s

14 bits

Pulse Shape Analysis

Event Builder

-ray Tracking

HL-Trigger, Storage Online Analysis

< 100 MB/s

SEGMENT

GLOBAL

Energy & Classification

5*n max. 900 MB/s

save 600 ns ofpulse rise time

E, t, x, y, z,...DETECTOR

LL-Trigger

Suppression /Compression

ADC

Preprocessing+-

GL-Trigger

OFFLINE Offline Analysis, GRID, ...

HL-Trigger, Storage Online Analysis

100 MB/s 8.6 TB/day

Structure of WG and tasks of teams• T1: Simulation of key experiments

• T2: Data base for detector parameters• T3: Data storage and access• T4: Online analysis and monitoring• T5: Offline analysis

Scope of the meeting• Exchange of ideas• Definition of tasks and teams, identification of

possible team leaders. The final organization will be decided at next AMB meeting

• Concrete plans on how to proceed should be presented to the AGATA community at the first

AGATA weekSeptember 15-19Padova/Legnaro

Program of the meetingThursday 12th

A.Wäänänen GRID computing

E. Farnea GEANT4 simulations for AGATA

J. Cresswell GLP Summary + TDR

B. Herskind Microscopic-Simulations

T. Saito Hypernuclear spectroscopy with AGATA

J. Wilson Searching for hyperdeformation

M. Palacz What can we do with 100 MB/s?

Friday 13th

Discussions