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Status of FMD. Comprehensive Review CERN, 23 March 2004 Jens Jørgen Gaardhøje Niels Bohr Institute. Integration and mechanical issues Sensors Preamp-shaper chips Hybrids Read-out strategy FMD-TDR. Forward detector overview. Beam and FMD support cone RB26 side.
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Status of FMD Comprehensive Review CERN, 23 March 2004 Jens Jørgen Gaardhøje Niels Bohr Institute • Integration and mechanical issues • Sensors • Preamp-shaper chips • Hybrids • Read-out strategy • FMD-TDR Jens Jørgen Gaardhøje, NBI
Forward detector overview Jens Jørgen Gaardhøje, NBI
Beam and FMD support coneRB26 side Jens Jørgen Gaardhøje, NBI
Finite element calculations of beam pipe support stresses Prototype beam-pipe support structure (crucial for LHC) in construction at NBI 33 m Displacements Less than 50 mum Jens Jørgen Gaardhøje, NBI
Installation Sequence 2 1 4 3 Jens Jørgen Gaardhøje, NBI
FMD sensors 512 strips 256 strips Inner module Final negotiations with (Micron/Hamamatsu) ongoing. Outer module Jens Jørgen Gaardhøje, NBI
Custom preamp-shaper chip VA1_ALICE 50 m input pitch Jens Jørgen Gaardhøje, NBI
VA1_ALICE noise simulations Jens Jørgen Gaardhøje, NBI
Hybrids Inner module VA1_ALICE (128 channels) pitch adapter (ceramics) bonding (CERN) Sensor - Custom production of adapted VA1 - Hybrid design settled with IDEAS. Connectors for power, control, read-out, bias Jens Jørgen Gaardhøje, NBI
Radiation environment Doses and Fluences in Central ALICE (10 years running): FMD: 4.2 cm | | 28 cm Belle measurements SSD2 TPC(in) Doses in FMD: =0.31 Mrd Jens Jørgen Gaardhøje, NBI
FMD Read-Out and Control Electronics IN COUNTING ROOM ON DETECTOR NEAR PATCH PANEL FMD Module Front-end bus 1 m Analog serial link (10 MHz) 0.5 m FMD Digitizer RCU ALTRO (16 ch) Data Proc. and Memory 16 Bus controller ( conf. & R/O) DDL ALTRO (16 ch) DAQ int. (DDL-SIU) BOARD ALTRO (16 ch) DCS BOARD controller DCS int. (Ethernet) CTRL Local Monitor and Control TTC-RX TTC optical Link (Clock, L1 and L2 ) Read-out CTRL Trigger int. (TTC-rx) VA Control Network (I2C-serial link) VA read-out control Trigger L0 1 ring: 10/20 modules 2 Digitizers 1 RCU per ring system Full FMD: 70 modules 10 Digitizers 3 RCU’s BSN, 17 Feb 2004 New read-out strategy Jens Jørgen Gaardhøje, NBI
New RCU location DAQ RCU FMDD Jens Jørgen Gaardhøje, NBI
Error estimates per run Estimates of SEU High Energetic Hadron Flux (@ TPCin): 250 – 550 hadrons / sec • cm2 Error rate per run (4 hours) per device FEC 3•10-4 RCU 1.5•10-2 DCS 3•10-2 Jens Jørgen Gaardhøje, NBI
FMD and TDR milestonesDetailed schedule for 2004 Jens Jørgen Gaardhøje, NBI
Overall schedule2004-2006 Jens Jørgen Gaardhøje, NBI