2. 1 SSD status report – 16 July 2004 Jerome Baudot, Strasbourg STAR Collaboration Meeting BNL, 16 July 2004 Silicon Strip Detector status report  Report on last year ® Completion this year

3. 2 SSD status report – 16 July 2004 SSD structure a module a ladder Strip detectors double sided 2  in r , -1<  <+1 500k channels Performances  R  ~ 20  m readout ~ 5 ms (4 RDO boards) air cooled Command (JTAG) initialize FEE slow control

4. 3 SSD status report – 16 July 2004 How many ladders do we have ? run IIIrun IV ½ SSD = 10 ladders = 160 modules 1 ladder = 16 modules

5. 4 SSD status report – 16 July 2004 Operations in run IV AuAu data 60+14 Mevts 1 RDO board died mid- february 2 others RDO unplugged ! for pp FEE eratically loosing bias (know how to fix) 1 air compressor failure No L2 accept Monitoring 1 st Slow Control version 1 st histos set in Online No alarms handling Electronic logbook

6. 5 SSD status report – 16 July 2004 Data analysis The basics pedestal as expected noise S/N

7. 6 SSD status report – 16 July 2004 We do see particles P side N side Landau fit : same charge collected on both sides  particles

8. 7 SSD status report – 16 July 2004 Data analysis : pedestal instability 15 January 2 April dead RDO board

9. 8 SSD status report – 16 July 2004 Production status now Modules >160 done Ladders (10 already installed) 9 done ladder 0 2 spares done Detector completed this summer 1 new sector (out of 2) of 5 ladders

10. 9 SSD status report – 16 July 2004 Installation for summer 2004 2-22 August get new sectors of 5 ladders redispatch mounted ladders -> sect 7 lad test all 4 sectors (2x3+2x7) shielding test RDO boards (1 new) install new power supplies change pedestal compensation (against fluctuation) >23 August rolling in test Integration L2 acept alarm handling no more Reset (FEE bias) new sectors old sector run IVrun V

11. 10 SSD status report – 16 July 2004 SSD software integration Already completed Daq : SsdReader Ssd hit reconstruction StiSsd (almost done, not yet reviewed, need to be tuned) Almost done Databases (Geometry and Calibration) : defined, currenctly filling Need more work Alignement : starting from StSvtAlignment ? (used for the SSD sometime ago) Data SsdReader Reconstruction SsdPointMaker StEvent StSsdHits ITTF StiSsdDetector Simulation sisdgeo.g StSsdSimulati on Alignment StSsdAlignme nt Db, Geom, Calibration

12. 11 SSD status report – 16 July 2004 SSD in GSTAR Material distribution and radiation length