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ALICE Forward Detectors Technical Design Report

ALICE Forward Detectors Technical Design Report. Editorial team: I.G. Bearden (NBI) H. Bøggild (NBI) C.Holm (NBI) J.J. Gaardhøje (NBI), ch J.Y. Grossiord (Lyon) T. Malkiewicz (Jyvaesk.) B.S. Nielsen (NBI) G. Paic (Mexico) W. Trzaska (Jyvaeskyla). FMD ’inner’ protype before dicing.

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ALICE Forward Detectors Technical Design Report

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  1. ALICE Forward DetectorsTechnical Design Report Editorial team: I.G. Bearden (NBI) H. Bøggild (NBI) C.Holm (NBI) J.J. Gaardhøje (NBI), ch J.Y. Grossiord (Lyon) T. Malkiewicz (Jyvaesk.) B.S. Nielsen (NBI) G. Paic (Mexico) W. Trzaska (Jyvaeskyla) Jens Jørgen Gaardhøje. NBI. ALICE-CR5

  2. Jens Jørgen Gaardhøje. NBI. ALICE-CR5

  3. FMD ’inner’ protype before dicing 2 sectors of 512 strips Test structures on 6” wafer Hamamatsu Jens Jørgen Gaardhøje. NBI. ALICE-CR5

  4. Bonding pads and bias resistors Jens Jørgen Gaardhøje. NBI. ALICE-CR5

  5. ALICE-FMD inner sensor Jens Jørgen Gaardhøje. NBI. ALICE-CR5

  6. First 3 inner sensors delivered at NBI-Feb 2005 TDR Specs: Full depletion voltage 50-100V Measure: full depletion voltage: 75 -80V. TDR specs: thickness = 310 μm +- 10 μm Measure: t= 323 μm +- 1 μm Jens Jørgen Gaardhøje. NBI. ALICE-CR5

  7. First test of FMD inner Si sensors Full-depletion voltage: 75 V Measure: < 2.5 pF/strip (bulk) TDR Specs: < 3 μA Measure: < 0.3 μA < 0.3 nA /strip 168 hr long-term stability test of leakage current at 200V Jens Jørgen Gaardhøje. NBI. ALICE-CR5

  8. FMD Hybrid card w. 8 x (128 ch) preamplifiers Jens Jørgen Gaardhøje. NBI. ALICE-CR5

  9. VA_ALICE 128 ch preampl Jens Jørgen Gaardhøje. NBI. ALICE-CR5

  10. Test of FEE card with 8 VA_ALICE preamplifier chips Jens Jørgen Gaardhøje. NBI. ALICE-CR5

  11. FEE card test results TDR: C=0pF => N=310e-, C=25pF => N=410e- Measure: C=0pF : N=200e- Expect for C=25pF: N~300e- => S/N= 22400/300=75. I MIP  22400 e- 3.5 fC Gain 20 mV/fC => 20MIP  1.4 V Jens Jørgen Gaardhøje. NBI. ALICE-CR5

  12. RCU-USB test at NBI with PC&TPC-FEE card Jens Jørgen Gaardhøje. NBI. ALICE-CR5

  13. FMD milestones adjusted to new ALICE installation schedule • Production of VA_ALICE chip done • Delivery of prototype hybrid cards done • Delivery of prototype Si sensors Feb-05 done • Prototype digitizer boards produced April-05 • Lab tests Si-FEE-Digitizer-RCU Jun-05 • Rad. hardness studies of FEE&digitizer May-05 • Place Si production order Jun-05 • Delivery Si & FEE Nov-05 • Bonding at CERN Dec-05 • Mechanics RB26 completed Feb-06 • Full system test with DAQ Dec-05 • Sector (half ring) rad. test Jan-06 • Detector assembly RB26 Mar-06 • Detector assembly RB24 Jun-06 • Ready for installation RB26 May-06 • Ready for installation RB24 Sep-06 Jens Jørgen Gaardhøje. NBI. ALICE-CR5

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