WP1: Detector Assembly Liverpool

1
WP1 Detector AssemblyLiverpool

• Tasks
• Detector specification measurement
• Assembly of components in progress
• Detector assembly for scanning
• Work in progress
• Triple-cryostat assembly
• Preparation in progress

2
Detector specification measurement

• Dedicated testing system
• Canberra equipment delivered
• New single test cryostat
• procure component parts
• Updated firmware for 40 Gretina digitiser
  channels.

3
Detector assembly for scanning

• The AGATA asymmetric detector C001 has been
  re-assembled and tested, prior to scanning (WP2)
  in the laboratory.

4
Detector assembly for scanning

• H. Boston, C. Unsworth trained in Cologne
• Subsequently trained M. Norman and S. Moon
• Preamplifier test box shipped to Liverpool
• Delays in reassembly due to internal wiring
  troubleshooting and slow pumping system
• Flaky internal wiring (test cryostat) possible
  Kapton cabling
• Cross talk data collected and analysed with
  Gretina cards
• Energy resolution verified with analogue
  electronics

5
Triple-cryostat assembly

• New pumping system due for delivery
• System will then be commissioned

6
WP1 Next 6 months

• C001 repaired and commissioned, being scanned
• Detector acceptance system will be commissioned
• Liverpool to be agreed as a detector acceptance
  site
• Procure cryostat component parts
• Appoint Liverpool technician
• Next detector for scanning to be commissioned.

7
WP1 Milestones
Table 1 Milestones achieved in the last six months Table 1 Milestones achieved in the last six months Table 1 Milestones achieved in the last six months Table 1 Milestones achieved in the last six months Table 1 Milestones achieved in the last six months
Milestone No. Work Package Milestone Target Date Status
M1.1 WP1 Train Staff in Cologne 02 Apr 09 Complete
Table 2 Milestones due in the next six months Table 2 Milestones due in the next six months Table 2 Milestones due in the next six months Table 2 Milestones due in the next six months
Milestone no. Work Package Milestone Target Date
M1.2 WP1 Successful measurements on a detector capsule and Liverpool to be an accredited detector acceptance centre 05 Oct 09
8
WP2 Interaction position determination using
pulse shape analysisManchester, Liverpool, Surrey

• Tasks
• Detector Characterisation
• C001 detector scan
• MGS 3D Simulation code comparison with expt.
• Work in progress
• Pulse Shape Analysis (PSA) development
• Work has started

9
WP 2 report

• General Comments
• S. Moon and A. Robinson started as PDRAs
• PSA team meetings
• AGATA week in Cologne (30 March)
• Legnaro (21-22 May 09)
• Bi-weekly telephone meetings

10
Detector Characterisation

• Offset of the horizontal segmentation line in
  rings 2 and 3, due to the electron and hole drift
  profile being influenced by the fast/slow axis
  orientations.
• The scan of detector C001 revealed a 12 offset
  toward segment B from that specified by the AGATA
  collaboration.
• Implication need to characterise to determine
  true axis orientation

11
Detector Characterisation

• Singles scan C001
• Output 2 IEEE TNS papers, 1 NIM paper, 2 APS
  conference proceedings.

12
Detector Characterisation

• Development of improved performance scanning
  methodology.
• Full scan presently 2 months
• The Pulse Shape Comparison (PSC) Scan method
  F.C.L. Crespi, NIM A, April 08
• Chi-squared minimisation of pulses shapes
  recorded from two collimated beams injected at 90
  degrees to each other in sequential measurements.
  
• This process requires only a singles scan and
  therefore would in principle allow a detector to
  be characterised in a fraction of the time.

13
Detector Characterisation

• Coincidence scan C001 delayed due to cooling
  problem requiring FET replacements.
• Detector now being scanned (WP1)

14
MGS 3D Simulation code comparison

• Basis data set optimised for symmetric detectors.

15
MGS 3D Simulation code comparison

• Majority of difference can be accounted for by
  differential cross-talk correction.

16
MGS 3D Simulation code comparison
17
MGS 3D Simulation code comparison

• Theoretical E-field calculations for three
  asymmetric AGATA detector shapes have been
  performed using MGS.

18
MGS 3D Simulation code comparison

• Reasonable good agreement (symmetric crystals)
• Axis orientation issue
• MGS grid issue (missing points)
• First triple basis data set (asymmetric crystals)
  delivered to LNL for in-beam tests
• Performance is promising

19
PSA development

• Storage devices purchased for basis data sets.
• Relevant meetings attended
• Personnel up to speed
• Infrastructure for algorithm optimisation
• Basis data set distribution

20
WP2 Next 6 months

• Detector Characterisation
• Complete C001 detector scan
• Validate PSC method
• Root conversion program available
• Compton reconstruction
• Mount next detector
• MGS 3D Simulation code comparison with expt.
• Implement differential cross talk correction
• Compare MGS/JASS performance
• PSA development
• Complete analysis platform commissioning
• Optimise PSA codes

21
WP2 Milestones
Table 1 Milestones achieved in the last six months Table 1 Milestones achieved in the last six months Table 1 Milestones achieved in the last six months Table 1 Milestones achieved in the last six months Table 1 Milestones achieved in the last six months
Milestone No. Work Package Milestone Target Date Status
M2.1 WP2 Theoretical asymmetric Triple Cluster Basis set (MGS) delivered to Legnaro and used 01 April 09 Complete
M2.2 WP2 PDRA commenced work in Manchester/Liverpool 01 May 09 Complete
22
Table 2 Milestones due in the next six months Table 2 Milestones due in the next six months Table 2 Milestones due in the next six months Table 2 Milestones due in the next six months
Milestone no. Work Package Milestone Target Date
M2.3 WP2 Detector 1 available for scanning 24 June 09
M2.4 WP2 Detector 1 Basis data set available 22 Sept 09
M2.5 WP2 Comparison of MGS electric field simulations with experimental pulse shapes complete and first interaction position algorithms ready 23 Dec 09
M2.10 WP2 Preliminary analysis of AGATA Stage 0 data complete 2 Dec 09
23
WP3 Simulation and trackingYork, UWS,
Manchester, STFC Daresbury

• Tasks
• Implementation of the experimental facilities
  into GEANT
• Ongoing, first stage complete
• Simulation of key experiments
• Ongoing, some source simulations done
• Verification of tracking algorithms
• Started

24
Implementation of the experimental facilities
into GEANT

• Geant4 code has been successfully installed with
  the existing experimental facilities.
• Some more need to be implemented during the next
  few months.

25
Packages

• GEANT4 AGATA code (E. Farnea)
• A tracking code
• 2 availables
• mgt code (D. Bazzacco)
• oft code (A. Lopez-Martens)
• An analysis package xtrackn, ROOT based programs
  (GammaWare)
• GammaWare (O. Stezowki)
• Convert files.ags from the Radware/ENSDF level
  scheme directory to
• simulation input file
• Production cross section codes
• Ex Fusion evaporation (CASCADE, COMPA )

26
Status near future plans

• A UK AGATA WG is being formed (mailing list,
  regular meetings)
• Obtain, install and learn how to use the AGATA
  simulation
• Get the packages running
• GEANT4 AGATA code (?)
• tracking codes (?)
• GammaWare (?)
• Cross section codes (to get)
• Reproduce the simulation results previously
  reported (on going)
• Simulate source runs and compare with data
• 137Cs or 60Co
• Simulate first in-beam test and compare with data

27
Basic tests of codes and validation
1p
2p
3p
4p
The Geant4 code has been tested to generate
various geometries of AGATA array.
28
Basic tests of codes and validation
Geant4 simulation 60Co source
P/T 62 Efficiency33
Orsay Tracking code
Padova Tracking code
P/T 63 Efficiency37
The P/T are almost same for both the codes.
Efficiencies are different. (Clustering mechanism
are different in ORSAY code)
29
WP3 Milestones
Table 1 Milestones achieved in the last six months Table 1 Milestones achieved in the last six months Table 1 Milestones achieved in the last six months Table 1 Milestones achieved in the last six months Table 1 Milestones achieved in the last six months
Milestone No. Work Package Milestone Target Date Status
M3.1 WP3 Preparatory work complete 02 April 09 Complete
M3.2 WP3 Simulation codes set up in the UK 05 July 09 Complete
Table 2 Milestones due in the next six months Table 2 Milestones due in the next six months Table 2 Milestones due in the next six months Table 2 Milestones due in the next six months
Milestone no. Work Package Milestone Target Date
M3.3 WP3 Simulation for UK led experiments for the January LNL PAC 31 Dec 09
30
WP4 Support for setup and running of initial
experiments UWS, Liverpool, Manchester, Surrey,
York, STFC Daresbury

• Tasks
• Installation of AGATA detectors at Legnaro
  National Laboratory
• Ongoing, first detector installed
• Running of the test experiments with sources and
  in-beam
• Ongoing, source and some in-beam test done
• Use the output of WP2 to optimise the analysis
• Future task

31
Stages in set up and commissioning Stage 0 Test
of a triple cluster with a radioactive
sourceStage 1 In-beam test of a triple
cluster Stage 2 In-beam test of a triple cluster
with a simple ancillary detector Stage
3 In-beam test of three triple clusters Stage
4 In-beam test of triple clusters with the PRISMA
spectrometer
32

• Stage 0 Radioactive sources test
• To test data-acquisition system, front-end
  electronics, mechanical support etc.
• Week 8 (16th 20th February 2009)

33

• Stage 1 First in-beam test
• To test system in real experimental conditions,
  measure overall position resolution etc.
• Week 12 (16th 20th March 2009)
• 30Si at 70 MeV on thin 12C target (with and
  without stopper downstream of target)
• One asymmetric cluster at ?90?
• Inverse kinematics high recoil velocity
• Different target to detector distances to
  determine position resolution

34
PRISMA spectrometer
Mechanical Support Frame
AGATA detector at Legnaro
35
WP4 Next 6 months

• Further commissioning experiments
• Stage 2 July 2009
• AGATA module with an ancillary detector
• Stage 3 Later in 2009
• Increase number of AGATA modules to three

36
WP4 Milestones
Table 1 Milestones achieved in the last six months Table 1 Milestones achieved in the last six months Table 1 Milestones achieved in the last six months Table 1 Milestones achieved in the last six months Table 1 Milestones achieved in the last six months
Milestone No. Work Package Milestone Target Date Status
M4.1 WP4 Source test of a triple cluster 18 Feb 09 Complete
M4.2 WP4 In beam test of a triple cluster 19 Mar 09 Complete
Table 2 Milestones due in the next six months Table 2 Milestones due in the next six months Table 2 Milestones due in the next six months Table 2 Milestones due in the next six months
Milestone no. Work Package Milestone Target Date
M4.3 WP4 In-beam test of a triple cluster with ancillary detector 6 July 09
M4.4 WP4 UWS PDRA started work 1 July 09
M4.5 WP4 In-beam test of first 3 triple clusters 31 Dec 09
37
WP5 Electronics and software STFC Daresbury,
Liverpool

• Tasks
• Support installation at Legnaro
• Ongoing
• Digitiser electronics for the next period (inc
  upgrade)
• Preparation work started

38
Support installation at Legnaro

• Digitiser work for demonstrator
• Firmware upgrade done to shut down automatically
  if temperature reaches 40C (previously relied on
  software)
• Delivery status

Task Done Shipped To do
Assemble Digitisers (UK) 18 0
Functional Test of digitisers (UK) 18 13 0
Performance test of digitisers (France) 7 7 11
Delivery to AGATA (from France) 7 7 11
Out of these 11 digitisers, 3 are in Turkey, 3
are in France, 5 in UK
39
Support installation at Legnaro

• Pre-processing work for demonstrator
• Management of team only no hardware or firmware
  work except advice/consultancy as required.
• Video conference every 2 weeks AGATA week team
  meeting face to face.

40
Support installation at Legnaro

• Slow control and GUI work for demonstrator
• Recent decision by the team to adopt Vic
  Pucknells (UK) software philosophy for Digitser
  control as the standard for all AGATA front end
  electronics control
• Commands sent to hardware known as Vic Orders
• Vic Pucknell has written example code against
  which to test application code written by others.

41
Digitiser electronics for the next period

• Digitiser work
• Collaboration has decided to build 6 digitisers
  of the current design for the end 2010. Four will
  be from the UK grant. Agreed with AGATA
  collaboration.
• Discussions have started to determine what
  upgrades are needed for the next batch of
  digitisers (replacement of obsolete parts for
  example). Expected to take several months.

42

• WP5 next 6 months
• Continue to support installation at Legnaro as
  required
• Start to build and test 6 more digitisers to
  existing design
• Continue discussion on digitiser proposal with
  rest of collaboration
• Start work on specification of new digitiser
  electronics

43
WP5 Milestones
Table 2 Milestones due in the next six months Table 2 Milestones due in the next six months Table 2 Milestones due in the next six months Table 2 Milestones due in the next six months
Milestone no. Work Package Milestone Target Date
M5.1 WP5 Agree detailed design specs for upgraded digitisers 4 Dec 09
M5.2 WP5 Funding agreed for first batch of digitisers 30 Jun 09
44
WP6 Mechanical DesignSTFC Daresbury, Liverpool

• Tasks
• Support for AGATA at Legnaro
• Investigation of mechanical problems
• Installation of detectors
• Several visit to Legnaro needed
• Design of new support structures
• Awaiting collaboration decision

45
Installation of detectors at Legnaro
Setting the Detector
Detector still doesnt come down square in jig,
but the situation is much improved
46
Installation of detectors at Legnaro
Measuring the Setting Fixture
Support jig measured with tracker. Results to be
compiled
47
Installation of detectors at Legnaro
Detectors within specification when
installed. Report to be written
48
WP6 Next 6 months

• Determine the source of the deflections using
  Finite Element Analysis.
• Modify necessary components.
• Start design of new support frame once the
  decision on the location of the next host
  laboratory has been taken.

49
WP6 Milestones
Table 2 Milestones due in the next six months Table 2 Milestones due in the next six months Table 2 Milestones due in the next six months Table 2 Milestones due in the next six months
Milestone no. Work Package Milestone Target Date
M6.1 WP6 Agree design spec for next host lab 22 Oct 09
50
WP7 Project ManagementLiverpool and STFC
Daresbury

• Tasks
• Establish UK management structure
• In place and working
• Contribute to AGATA international mangement
• ongoing

51
WP7 Milestones
Table 1 Milestones achieved in the last six months Table 1 Milestones achieved in the last six months Table 1 Milestones achieved in the last six months Table 1 Milestones achieved in the last six months Table 1 Milestones achieved in the last six months
Milestone No. Work Package Milestone Target Date Status
M7.1 WP7 Agree UK Membership of AGATA collaboration meeting 1 Sept 08 Complete
M7.2 WP7 Establish UK management structure 30 Sept 08 Complete
M7.3 WP7 1st Meeting of UK Management group Nov 08 Complete
M7.4 WP7 2nd Meeting of UK Management group Jan 09 Complete
M7.5 WP7 3rd Meeting of UK Management group March 09 Complete
M7.6 WP7 4th Meeting of UK Management group June09 Complete
52
Table 2 Milestones due in the next six months Table 2 Milestones due in the next six months Table 2 Milestones due in the next six months Table 2 Milestones due in the next six months
Milestone no. Work Package Milestone Target Date
M7.7 WP7 5th Meeting of UK Management group Sep 09
M7.8 WP7 6th Meeting of UK Management group Jan10
53
WP8 Equipment procurement and running costs
Liverpool and STFC Daresbury

• Tasks
• Purchase of detectors and cryostat
• Initial order placed
• Purchase of electronics
• Specification being agreed
• Payment of Running costs
• First payment made

54

• Detectors / Cryostat
• Three capsules ordered
• Delivery from August 2010
• Triple Cryostat specification being formally
  agreed

• Electronics
• Plan for the next phase being agreed with the
  collaboration

55

• Running costs
• AGATA Steering Committee has agreed the running
  costs for 2009
• Costs will be reviewed each year depending on
  actual use and number of detectors
• Costs for 2010 will be agreed in late 2009
• First payment made

56
WP8 Milestones
Table 1 Milestones achieved in the last six months Table 1 Milestones achieved in the last six months Table 1 Milestones achieved in the last six months Table 1 Milestones achieved in the last six months Table 1 Milestones achieved in the last six months
Milestone No. Work Package Milestone Target Date Status
M8.1 WP8 Order AGATA detector capsules 3 March 09 Complete
M8.2 WP8 Agree running costs with collaboration 3 March 09 Complete
M8.3 WP8 Payment of first running cost instalment 3 March 09 Complete
M8.4 WP8 First payment (20) for detector capsules 4 May 09 Complete
Table 2 Milestones due in the next six months Table 2 Milestones due in the next six months Table 2 Milestones due in the next six months Table 2 Milestones due in the next six months
Milestone no. Work Package Milestone Target Date
M8.5 WP8 Order triple cryostat and electronics modules 3 July 09
57

• Contingency / Working Allowance
• Grant bid was made at 2007 prices
• Equipment prices have increased by 5
• Significant change in exchange rate
• Bid 1.43 euro 1 2 1
• Now 1.11 euro 1 1.6 1
• Smaller number of electronics modules funded (re
  bid) will lead to higher unit costs

Known or estimated changes summarised in the table
58
Calls on the contingency / working allowance
Item Award (k) Increase (k) Main Reason
Detector capsules 393 160 Exchange rate
Cryostat 68 20 Exchange rate
Electronics 253 41.5 Smaller numbers
Running costs 77.5 22.3 Exchange rate
Research student 60 1 Student left
Increase (actual) 160
Increase (estimate) 84.8
Working allowance 265