1. LHCC referees meeting, 10 October 2005Børge Svane Nielsen, NBI1 Status of the FMD LHCC referees meeting, 10 October 2005 Børge Svane Nielsen Niels Bohr Institute

2. LHCC referees meeting, 10 October 2005Børge Svane Nielsen, NBI2 Prototype status Hamamatsu sensor prototype: well within specs → Inner production started, delivery end November → Outer design done, prototype ordered IDEAS inner hybrid prototype: VA1_3 chips within specs, all produced → 2nd hybrid prototype delivered and tested → Hybrid production starting Prototype module (sandwich) status: MIP particles seen (680 MeV e-) Noise level as expected or better → 2nd prototype tested in e- beam early October Readout electronics status: → Prototype VA1-Digitizer-RCU chain working Mechanics: → TPC-ITS-T0-V0-FMD assembly test done

3. LHCC referees meeting, 10 October 2005Børge Svane Nielsen, NBI3 Silicon sensors 13cm Bonding pads Leakage current (specs < 3 μA) Detector capacitance 300 nA 2 nF Bias voltage 300 V Bias voltage 300 V Inner prototype: 300 μm thick 2 x 512 strips 250 μm pitch

4. LHCC referees meeting, 10 October 2005Børge Svane Nielsen, NBI4 Prototype module  3 prototype inner detector sandwich modules built: Hybrids glued to sensors with thin ceramic spacers Readout pads bonded to silicon at periphery of hybrid hybrid sensor bonds

5. LHCC referees meeting, 10 October 2005Børge Svane Nielsen, NBI5

6. LHCC referees meeting, 10 October 2005Børge Svane Nielsen, NBI6 Beam test of modules 680 MeV e - beam test at ASTRID ring at Aarhus University, DK FMD module e - beam

7. LHCC referees meeting, 10 October 2005Børge Svane Nielsen, NBI7 Noise estimate Noise SourceShort strips (14 mm) Long Strips (50 mm) Elect. + cap. 263 e - 309 e - Bias  208 e - I leak 47 e - 88 e - Total 338 e - 390 e - Signal (1 MIP)22000 e - Signal/Noise 65 56 Inner sensor noise estimate

8. LHCC referees meeting, 10 October 2005Børge Svane Nielsen, NBI8 Test beam results, July  Tested prototype with high energy electron beam (680 MeV)  Clear signal peak  Signal/Noise  60

9. LHCC referees meeting, 10 October 2005Børge Svane Nielsen, NBI9 Test beam results, October S/N=56 S/N=47 S/N=56 S/N=58

10. LHCC referees meeting, 10 October 2005Børge Svane Nielsen, NBI10 Read-out electronics Lab test with sandwich and prototype Digitizer+RCU readout Good progress with prototype Digitizer and USB version of RCU - prototype Digitizer card + firmware built - complete Digitizer+RCU chain works - first beam tests with full electronics chain successfull - preparing for final version RCU Digitizer

11. LHCC referees meeting, 10 October 2005Børge Svane Nielsen, NBI11 Integration test Installation of FMD3 and FMD2 together with ITS, etc. Beam pipe support

12. LHCC referees meeting, 10 October 2005Børge Svane Nielsen, NBI12 Conclusions  FMD prototype modules show excellent signal to noise characteristics (  60:1).  Hit sharing accounts for most of the particles seen between the MIP peak and the noise peak.  Production of inner sensors and hybrids started.  Final design of outer module, digitizer and mechanics progressing well.