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Detectors and Preamplifiers

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Presentation on theme: "Detectors and Preamplifiers"— Presentation transcript:

1 Detectors and Preamplifiers
Detector deliveries Customer Acceptance Tests Available detectors AGATA triple detectors Scanning program P. Reiter IKP University Cologne AGATA week 8-11 July 2008 Uppsala

2 Detector Delivery Owner Status A001* 11/2005 GANIL rejected – hole trapping A001 06/2006 accepted A002* 04/2006 TU Munich rejected – leakage currents A002 06/2007 A003* 11/2006 Liverpool A003 10/2007 A004 09/2007 Ankara rejected – segments out of specification A004* 07/2008 CAT at IKP, Cologne A005 12/2007 Stockholm CAT at CEA, Saclay & IKP B001* Padova B001 B002 08/2006 B003 B004 rejected – missing segment in capsule B004* 06/2008 B005 CAT at CEA, Saclay C001 12/2005 C002 07/2006 C003 03/2007 accepted, broken, leakage currents C004 C005

3 Detector Delivery Owner Status A001 06/2006 GANIL Accepted, available A002 06/2007 TU Munich A003 10/2007 Liverpool B002 08/2006 B003 C001 12/2005 Padova C002 07/2006 C004 09/2007 Ankara accepted

4 Recent detector tests and future deliveries
Turkish detectors B004 (repaired) delivered to IKP, Cologne, test started A004 (repaired) delivered July, 1st 2008 shipment of A004, B004, C004 to Turkey autumn 2008 Swedish detectors A005, B005, C005 tests ongoing at CEA - test results of A005 to be confirmed at IKP, Cologne - test of B005 started Liverpool detector C003: leakage current, out of warranty Italian detectors A006 announced delivery July (week 29) 2008 B006 announced delivery July (week 31) 2008 B001 announced delivery July 2008 Improved energy resolution especially at low energies (electronics dominated) - glued detector less microphonics - final preamp electronic assembly (grounding, cabeling) Message : better than in single cryostat – specification easily met

5 Summary available detector
8 detectors accepted (A1,A2,A3 B2,B3 C1,C2,C4) 1 detector to be repaired at Canberra (B1) 5 detectors ongoing test (A4, A5, B4, B5, C5) 1 detector broken (C3) 3 (Sweden A005, B005, C005) ongoing CAT at Saclay 2 (Turkey A004, B004) ongoing CAT at Cologne 1 (Italy C001) scanning at Liverpool until July 1 (Italy B001) not accepted after CAT, not repaired 1 (UK C003) is broken after CAT, needs repair 3 (Turkey A004, B004, C004) are shipped to Turkey fall 2008 At the moment 6 detectors are available for AGATA triple clusters A001, A002, A003 B002, B003 C002 Improved energy resolution especially at low energies (electronics dominated) - glued detector less microphonics - final preamp electronic assembly (grounding, cabeling) Message : better than in single cryostat – specification easily met

6 AGATA triple cluster detectors
First AGATA triple * A001 : B002 : C002 : *Goes to Legnaro July 2008 Second AGATA triple A003 : B003 : C004 : * *Goes to Turkey in fall 2008, Replaced by C005 Third AGATA triple A002 : B005 or B001: * C001: ** *B005 after test or B001 after delivery & test ** C001 after scanning Improved energy resolution especially at low energies (electronics dominated) - glued detector less microphonics - final preamp electronic assembly (grounding, cabeling) Message : better than in single cryostat – specification easily met

7 Scanning program Liverpool C001 * A005 * Goes to IKP,
Assembly of second Triple cluster by CTT July 2008 Orsay S002 * B005 : * Commissioning, confirm Liverpool results See talks by A. Boston C. Unsworth A. Korichi F. Crespi Thursday, 14:00-15:40 Improved energy resolution especially at low energies (electronics dominated) - glued detector less microphonics - final preamp electronic assembly (grounding, cabeling) Message : better than in single cryostat – specification easily met

8 Future detector tests and triple assembly
Detectors for period fall and winter 2008/09 13 detectors may be available A1, A2, A3, A5, A6 B1, B2, B3, B5, B6 C1, C2, C5 A6, B1, B6 delivery July 2008 redelivery of turkish detectors A4, B4, C4 ? January - June italian detectors C6, A7 ? detector repair of C3 ? summer 2008 order of german detectors A8, B7, C7 ? Improved energy resolution especially at low energies (electronics dominated) - glued detector less microphonics - final preamp electronic assembly (grounding, cabeling) Message : better than in single cryostat – specification easily met

9 G. Pascovici, IKP Cologne
Talks by A. Wiens, IKP Cologne A. Goergen, CEA Saclay D. Quirion, Canberra B. Bruyneel, IKP Cologne G. Pascovici, IKP Cologne Improved energy resolution especially at low energies (electronics dominated) - glued detector less microphonics - final preamp electronic assembly (grounding, cabeling) Message : better than in single cryostat – specification easily met

10 1st Tripel Cluster Energies: Single vs Triple cryostat
Resolution 60keV line Resolution 1.33MeV line A001 – FWHM [keV] B002 – FWHM [keV] C002 – FWHM [keV] Improved energy resolution especially at low energies (electronics dominated) - glued detector less microphonics - final preamp electronic assembly (grounding, cabeling) Message : better than in single cryostat – specification easily met

11 2nd Tripel Cluster Energies: Single vs Triple cryostat
Resolution: 60keV line A003 FWHM [keV] C004 FWHM [keV] B003 FWHM [keV] A003 FWHM [keV] Improved energy resolution especially at low energies (electronics dominated) - glued detector less microphonics - final preamp electronic assembly (grounding, cabeling) Message : better than in single cryostat – specification easily met

12 Tripel Cluster Energy resolution: Single vs Triple cryostat
Excellent energy resolution in two AGATA triple clusters Mean values 60 keV : especially at low energies (electronic noise): - glued detectors  less microphonics - HEKO  AGATA preamp - electronic assembly (grounding, cabling) First AGATA triple A001 : /- 53 eV B002 : /- 70 eV C002 : /- 63 eV Second AGATA triple A003 : /- 65 eV B003 : /- 73 eV C004 : /- 104 eV * * high frequency oscillation to be removed Improved energy resolution especially at low energies (electronics dominated) - glued detector less microphonics - final preamp electronic assembly (grounding, cabeling) Message : better than in single cryostat – specification easily met

13 Cross talk measurements
Segment labeling: Sectors: A...F Rings: 1...6 Core to seg Xtalk = understood! A2..A6 B1 F1 X Bart Bruyneel, Andreas Wiens

14 Smallest capacities in ring 2
B2 C2 E2 F2 D2 A2

15 Cross talk in first AGATA Triple Cryostat
B002 C002 A001 Sector A Sector F Sector A Sector F Core B Core C Sector A Sector F B002 Core A Core C C002 Core A Core B

16 AGATA Triple Clusters: Summary & outlook
Two AGATA Triple Cluster Detectors operational: - first & second triple: cryostat, mechanics, vacuum, thermal properties of preamps o.k. - seg-preamps, core preamps & pulser with high dynamic range operational - very good energy resolution at low energies - no cross talk between detectors observed in 1st ATC between detectors - commissioning of 2nd ATC ongoing Next steps: - transport of 1st ATC to Legnaro, first tests with digital electronics at Legnaro July 2008 - finish commissioning of 2nd ATC, cross talk tests - assembly of 3rd ATC constrained by available detectors ATC1 ATC2 ATC3

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