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CR7-FMD, 19 March 2007Jens Jørgen Gaardhøje, Niels Bohr Institute 1 Forward Multiplicity Detector FMD 1 FMD 3 FMD 2 Outer ring Inner ring.

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Presentation on theme: "CR7-FMD, 19 March 2007Jens Jørgen Gaardhøje, Niels Bohr Institute 1 Forward Multiplicity Detector FMD 1 FMD 3 FMD 2 Outer ring Inner ring."— Presentation transcript:

1 CR7-FMD, 19 March 2007Jens Jørgen Gaardhøje, Niels Bohr Institute 1 Forward Multiplicity Detector FMD 1 FMD 3 FMD 2 Outer ring Inner ring

2 CR7-FMD, 19 March 2007Jens Jørgen Gaardhøje, Niels Bohr Institute 2 FMD3 Cone and Beam Pipe Support FMD3 support cone holds the beam pipe via 4 tensioned wires Test of final cone and wire mechanism: Deformations <10 um. Beampipe support

3 CR7-FMD, 19 March 2007Jens Jørgen Gaardhøje, Niels Bohr Institute 3 FMD2 support IP FMD2 support is a carbon fibre cylinder Mounting flap Honeycomb detector mounting plates Water cooling plate for FMD2 enclosure

4 CR7-FMD, 19 March 2007Jens Jørgen Gaardhøje, Niels Bohr Institute 4 Digitizer cards, 40Mhz bus, RCU, DAQ, Trigger Digitizer cards: 2 types: inner, outer 3 ALTROs + Board Controller 3 m bus cable to RCU gave many problems. Solved by changing from 40+50 ALTRO flat bus to 50+80 twisted pair cables. Trigger (LTU) tested DAQ operational. 40 bit signal + 10 grounds 40 bit signal + 40 grounds Twisted pairwise adaptor

5 CR7-FMD, 19 March 2007Jens Jørgen Gaardhøje, Niels Bohr Institute 5 Performance in beam 680 MeV e - beam test at ASTRID ring, Aarhus University, DK 3inner+3outer FMD modules (4608 channels) e - beam

6 CR7-FMD, 19 March 2007Jens Jørgen Gaardhøje, Niels Bohr Institute 6 Assembly of FMD3

7 CR7-FMD, 19 March 2007Jens Jørgen Gaardhøje, Niels Bohr Institute 7 Completed FMD3

8 CR7-FMD, 19 March 2007Jens Jørgen Gaardhøje, Niels Bohr Institute 8

9 CR7-FMD, 19 March 2007Jens Jørgen Gaardhøje, Niels Bohr Institute 9 Performance tests after assembly Test of noise (pedestal width) for half inner ring (5 modules, 5120 strips) after final assembly Pattern consistent with strip and printed circuit lengths S/N= 20- 40 for all channels

10 CR7-FMD, 19 March 2007Jens Jørgen Gaardhøje, Niels Bohr Institute 10 … and completed FMD2

11 CR7-FMD, 19 March 2007Jens Jørgen Gaardhøje, Niels Bohr Institute 11

12 CR7-FMD, 19 March 2007Jens Jørgen Gaardhøje, Niels Bohr Institute 12

13 CR7-FMD, 19 March 2007Jens Jørgen Gaardhøje, Niels Bohr Institute 13 Packing FMD3 Spring suspended false bottom

14 CR7-FMD, 19 March 2007Jens Jørgen Gaardhøje, Niels Bohr Institute 14 From NBI to CERN Friday, 9-3-07 Saturday, 10-3-07 Saturday, in TPC clean room

15 CR7-FMD, 19 March 2007Jens Jørgen Gaardhøje, Niels Bohr Institute 15 … at CERN Cabling of FMD3 and mounting of connectors completed week 10 Verification of FMD3 cabling and partial cabling of FMD2 (service chariot) week 12 Pre-Commissioning in TPC clean room at P2 with: Final CAEN HV, CAEN LV-Easy, temporary cooling system, Final DAQ + Trigger system, partial DCS weeks 11 and Commissioning: week 12 Installation in ALICE April 23-25 (FMD3) week 17

16 CR7-FMD, 19 March 2007Jens Jørgen Gaardhøje, Niels Bohr Institute 16

17 CR7-FMD, 19 March 2007Jens Jørgen Gaardhøje, Niels Bohr Institute 17

18 CR7-FMD, 19 March 2007Jens Jørgen Gaardhøje, Niels Bohr Institute 18

19 CR7-FMD, 19 March 2007Jens Jørgen Gaardhøje, Niels Bohr Institute 19 Time table  FMD 3 cabling 5/3 - 9/3 (week 10) OK  Delivery at CERN of FMD 2 & 3: 10/3 (week 10) OK  Precommissioning at CERN: 13/3 - 16/3 (week 11) OK  Commissioning at CERN of FMD 3 & 2 : 19/3 - 23/3 (week 12) (can be extended into 26/3 - 30/3, week 13)  Installation HV+LV in pit area (10/4 - 13/4, week 15)  Final preparation for installation (16/4 - 20/4, week 16)  Installation FMD 3 (23/4 - 25/4, week 17)  Installation FMD 2 (10/4, week 19)  Cabling FMD 2 (15/4, week 20)  Delivery at CERN of FMD1 : 25/6 - 29/6 (week 26)  Commissioning at CERN: 2/7 - 6/7 (week 27)  Final preparation for installation: 3/9 - 7/9 (week 36)  Installation FMD1 : 12/9 - 14/9 (week 37)

20 CR7-FMD, 19 March 2007Jens Jørgen Gaardhøje, Niels Bohr Institute 20 Summary -FMD3 and FMD2 detectors at CERN since March 10, 2007 -Bad strips (<< 0.1%) -Signal (MIP)/noise = 20-40 -Commissioning with final power supplies, DAQ, DCS and Trigger ongoing at CERN. -Installation in ALICE: FMD3: 23/4, FMD2: 10/5, FMD1: 12/9

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