WP1: Detector Assembly Liverpool

WP1: Detector AssemblyLiverpool

• Tasks:Detector specification measurement

• Assembly of components in progressDetector assembly for scanning

• Work in progressTriple-cryostat assembly

• Preparation in progress

Detector specification measurement

• Dedicated testing system– Canberra equipment delivered

• New single test cryostat– procure component parts

• Updated firmware for 40 Gretina digitiser channels.

Detector assembly for scanning

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

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

Triple-cryostat assembly

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

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.

WP1: MilestonesTable 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 monthsMilestone no. Work

PackageMilestone Target Date

M1.2 WP1 Successful measurements on a detector capsule and Liverpool to be an accredited detector acceptance centre

05 Oct 09

WP2: Interaction position determination using pulse shape analysisManchester, Liverpool, Surrey

• Tasks:Detector Characterisation

• C001 detector scanMGS 3D Simulation code comparison with expt.

• Work in progressPulse Shape Analysis (PSA) development

• Work has started

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

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

Detector Characterisation • Singles scan C001

• Output: 2 IEEE TNS papers, 1 NIM paper, 2 APS conference proceedings.


• 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.


• Coincidence scan C001 delayed due to cooling problem requiring FET replacements.

• Detector now being scanned (WP1)

MGS 3D Simulation code comparison • Basis data set optimised for symmetric

detectors.

D4 D4

MGS 3D Simulation code comparison

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


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


• 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

PSA development

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

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

WP2: Milestones

Table 1: Milestones achieved in the last six months

Milestone No.

Work Package


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

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

WP3 : Simulation and trackingYork, UWS, Manchester, STFC Daresbury

•TasksImplementation of the experimental facilities into

GEANT •Ongoing, first stage complete

Simulation of key experiments•Ongoing, some source simulations done

Verification of tracking algorithms •Started

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

Implementation of the experimental facilities into GEANT

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 tosimulation input file

• Production cross section codes– Ex: Fusion evaporation (CASCADE, COMPA )

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

Basic tests of codes and validation

1 2

3 4

The Geant4 code has been tested to generate various geometries of AGATA array.

Orsay Tracking code

Padova Tracking code

Geant4 simulation 60Co source

P/T = 62%Efficiency=33%

P/T = 63%Efficiency=37%

The P/T are almost same for both the codes. Efficiencies are different. (Clustering mechanism are different in ORSAY code)

Basic tests of codes and validation


Milestone No.

Work Package


M3.1 WP3 Preparatory work complete 02 April 09 Complete

M3.2 WP3 Simulation codes set up in the UK

05 July 09 Complete


Milestone no.

Work Package


M3.3 WP3 Simulation for UK led experiments for the January LNL PAC

31 Dec 09

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

Stages in set up and commissioning

Stage 0 Test of a triple cluster with a radioactive sourceStage 1 In-beam test of a triple clusterStage 2 In-beam test of a triple cluster with a simple

ancillary detectorStage 3 In-beam test of three triple clustersStage 4 In-beam test of triple clusters with the PRISMA

spectrometer

Stage 0: Radioactive sources test

To test data-acquisition system, front-end electronics, mechanical support etc.

•Week 8 (16th – 20th February 2009)

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 θ=90○

•Inverse kinematics – high recoil velocity•Different target to detector distances to determine

position resolution

AGATA detector at Legnaro

Mechanical Support FramePRISMA spectrometer

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

WP4: Milestones


Milestone no.

Work Package


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

Table 1: Milestones achieved in the last six months

Milestone No.

Work Package


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

WP5 Electronics and softwareSTFC Daresbury, Liverpool

• Tasks Support installation at Legnaro

• Ongoing Digitiser electronics for the next period (inc upgrade)

• Preparation work started

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


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.


Slow control and GUI work for demonstrator• Recent decision by the team to adopt Vic Pucknell’s (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.

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.

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

WP5: Milestones


Milestone no.

Work Package


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

WP6: Mechanical DesignSTFC Daresbury, Liverpool

• Tasks:Support for AGATA at Legnaro

• Investigation of mechanical problemsInstallation of detectors

• Several visit to Legnaro neededDesign of new support structures

• Awaiting collaboration decision

Detector still doesn’t come down square in jig, but the situation is much improved

Setting the Detector

Installation of detectors at Legnaro

Support jig measured with tracker. Results to be

compiled

Measuring the Setting Fixture


Detectors within specification when

installed.Report to be written


•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.

WP6: Next 6 months

WP6: Milestones


Milestone no.

Work Package


M6.1 WP6 Agree design spec for next host lab

22 Oct 09

WP7: Project ManagementLiverpool and STFC Daresbury

• Tasks:Establish UK management structure

• In place and working

Contribute to AGATA international mangement

• ongoing


Milestone No.

Work Package


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


Milestone no.

Work Package



Sep 09


Jan10

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

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

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


Milestone No.

Work Package


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


Milestone no.

Work Package


M8.5 WP8 Order triple cryostat and electronics modules

3 July 09

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

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

Calls on the contingency / working allowance

WP1: Detector Assembly Liverpool

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