Transcript No Slide Title

AGATA Week
Introduction
John Simpson
Nuclear Physics Group
GSI, 21-15 February 2005
AGATA WEEK
ALL AGATA teams to meet
ALL to be present throughout the week
Travel, information exchange, overlap of tasks between groups
Specifications to be agreed and finalised
Programme
Monday 21st February
Introduction followed by
Status reports
EU JRA project
Gretina
Buffet dinner
Tuesday 22nd February
Detectors, performance, simulation and DA
a.m Plenary session. Status report from teams and Gretina
p.m. Team meetings
Physics and event simulation of key
experiments, data analysis, detectors
preamplifiers, characterisation,
GTS and ancillary interface and tracking
Programme
Wednesday 23st February
Data processing, ancillary detectors and infrastructure
a.m Plenary session. Status report from teams
p.m. Team meetings
DAQ, run control and GUI, Digitisation,
pre-processing, GTS, PSA, Mechanics,
R&D on other detectors,
Key experiments and ancillary detectors
Thursday 24th February
a.m AMB/ASC Gretina discussion
a.m. Data bases
p.m. ASC
p.m. Grounding and slow control
Friday 25th February
a.m AMB
Rooms available on Thursday and Friday
AGATA TEAMS and TEAM LEADERS
Detector Module Working Group. Chairperson Juergen Eberth.
Detector module and cryostat
Preamplifier
leader D. Weisshaar
leader A. Pullia
Detector performance. Chairperson Reiner Krucken.
Pulse shape analysis team
Detector characterisation team
leader R.Gernhaeuser/P.Desesquelles
leader A. Boston
Data Processing Chairperson D.Bazzacco
Digitisation
Pre-processing algorithms
Pre-processing hardware
Global clock and trigger
Data acquisition
Run control and GUI
leader P.Medina
leader W. Gast
leader I.Lazarus
leader M.Bellato
leader X.Grave
leader G.Maron
Ancillary detectors and ancillary detector integration. Chairperson A.Gadea.
Ancillary detector impact on AGATA performances
Electronics and data acquisition integration
Mechanical integration of ancillary detectors and devices in AGATA
Ancillary devices for the key experiments
Other team leaders are to be identified.
leader Ch.Theisen
leader N.Redon
Design and Infrastructure. Chairperson G.Duchêne.
Mechanical design
Infrastructure
R&D on other Ge detectors.
(leaders to be agreed)
leader(K.Fayz/J.Simpson)
leader (P.Jones)
leader (D.Curien)
Data Analysis Working Group. Chairperson Johan Nyberg.
Physics and event simulation of key experiments
Detector data base parameters
Gamma-ray tracking
Data processing (online/offline analysis, etc.)
leader E. Farnea
leader K.Hauschild
leader W.Lopez-Martens
leader O.Stezowski
The AGATA Collaboration
Memorandum of Understanding 2003 Research and Development
Bulgaria:
Univ. Sofia
Denmark:
NBI Copenhagen
Finland:
Univ. Jyvaskyla
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. zu Köln, LMU München, TU München
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:
NINP and IFJ 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, CLRC Daresbury, Univ. Keele, Univ. Liverpool, Univ. Manchester,
Univ. Paisley, Univ. Surrey, Univ. York
Turkey
Hungary
The AGATA
RESEARCH and DEVELOPMENT PHASE
•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
The First Step:
The AGATA Demonstrator
Objective of the final R&D phase 2003-2008
1 symmetric triple-cluster
5 asymmetric triple-clusters
36-fold segmented crystals
540 segments
555 digital-channels
Eff. 3 – 8 % @ Mg = 1
Eff. 2 – 4 % @ Mg = 30
Full ACQ
with on line PSA and g-ray tracking
Test Sites:
GANIL, GSI, Jyväskylä, Köln, LNL
Cost ~ 7 M €
Funding
Capital for the demonstrator
k€ ex tax
France
1108
Germany
531
Italy
1250
UK
725
Total
3614
Munich
Total
550
4164
Sweden
Turkey
~725
Estimated cost
Demonstrator
(3 sym + 9 asymm)
k€ ex tax
Detectors
2928
Electronics
1039
DAQ
351
D&I
35
Ancillaries
25
Data analysis
20
Misc.
60
Total
4458
Funding
Cost greater than current available funds!
Accurate estimates now required for all parts of project
Timescale / Project Plan
Five year research and development phase of AGATA
Start January 2003 End December 2007
Aim to have sufficiently large enough array to test tracking and performance with sources
and in beam
Timescales are driven by detector and DAQ deliveries.
Global timescale estimates:
First three symmetric capsules delivered
Test individual as 3-unit module by summer 2005
8 asymmetric capsules have been ordered (almost)
Deliveries from Nov 2005 to February 2007
Tests of all individual components of DAQ chain by March 2006
Test of complete chain with detector March to June 2006
Production from autumn 2006, delivery early 2007
Source and in beam tests
GUI, algorithms PSA, tracking, infrastructure, mechanical design…
2004
2005
2006
2007
Timescale / Project Plan
Specifications
http://npg.dl.ac.uk/documentation/AGATA/specifications/
 GSI AGATA site
•Technical description
•Costs
•Timescale
Need a complete project plan
The 4 180 detector Configuration
Ge crystals size:
length
90 mm
diameter 80 mm
180 hexagonal crystals 3 shapes
60 triple-clusters
all equal
Inner radius (Ge)
23.1 cm
Amount of germanium 362 kg
Solid angle coverage
82 %
Singles rate
~50 kHz
6480 segments
Efficiency: 43% (Mg=1)
28% (Mg=30)
Peak/Total: 58% (Mg=1)
49% (Mg=30)
http://agata.pd.infn.it/documents/simulations/comparison.html
AGATA Detectors
Hexaconical Ge crystals
90 mm long
80 mm max diameter
36 segments
Al encapsulation
0.6 mm spacing
0.8 mm thickness
37 vacuum feedthroughs
3 encapsulated crystals
111 preamplifiers with cold FET
~230 vacuum feedthroughs
LN2 dewar, 3 litre, cooling power ~8 watts
AGATA Prototypes
• Symmetric detectors
– 3 ordered, Italy, Germany
– 3 delivered
– Acceptance tests in Koln
– 3 work very well
First results very good:
36 outer contacts
0.9-1.1 keV at 60keV and 1.9-2.1 keV
at 1.3 MeV
Core
1.2 keV at 60 keV and 2.1 keV at 1.3 MeV
Cross talk less than 10-3
AGATA Prototypes
Full scan of first in Liverpool
Assembly of triple cryostat (CTT)
Cluster ready by Summer 2005
First triple
cryostat
in Cologne
Asymmetric detectors for the 180 geometry
– 8 ordered in 2004 (early 2005)
– 4 to be ordered in 2005
– delivery starts end 2005
AGATA Design and Construction
GRETINA
Segment level processing: energy, time
Detector level processing: trigger, time, PSA
Global level processing: event building, tracking, software trigger, data storage
Status and Evolution
• Demonstrator ready in 2007
• Next phases discussed in 2005-2006
• New MoU and bids for funds in 2007
• Start construction in 2008
• Rate of construction depends on
production capability
• Stages of physics exploitation, facility
development
The Phases of AGATA-180
55
54
Clusters
Clusters
Array
3
1
The Phases of AGATA
1
5 Clusters
Demonstrator
2007
Peak efficiency
3 – 8 % @ Mg = 1
2 – 4 % @ Mg = 30
Main issue is Doppler
correction capability
 coupling to beam and
recoil tracking devices
GSI
LNL
GANIL
JYFL
Replace/Complement
FRS
RISING
PRISMA CLARA
VAMOS
EXOGAM
RITU
JUROGAM
Improve resolution at higher recoil velocity
Extend spectroscopy to more exotic nuclei
15 Clusters
1
Efficiency (%)
The Phases of AGATA
2
50
45
Solid Angle (%)
Efficiency M = 1
40
Efficiency M = 10
Efficiency M = 20
35
Efficiency M = 30
30
25
20
15
10
5
0
b = 10
b =2 0.5
The first “real” tracking array
Used at FAIR-HISPEC, SPIRAL2, SPES, HI-SIB
Coupled to spectrometer, beam tracker, LCP arrays …
Spectroscopy at the N=Z (100Sn), n-drip line nuclei, …
The Phases of AGATA
45 Clusters
3
Ideal instrument for FAIR / EURISOL
Also used as partial arrays in different labs
Higher performance by coupling with ancillaries
3
The Phases of AGATA
60 Clusters
4
Full ball, ideal to study extreme deformations
and the most exotic nuclear species
Most of the time used as partial arrays
Maximum performance by coupling to ancillaries
4
AGATA Week
14th
IReS Srasbourg
– 18th November 2005