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Performance of the PHENIX NCC Prototype

Michael Merkin Skobeltyn Institute of Nuclear Physics Moscow State University. Performance of the PHENIX NCC Prototype. NCC Structure. Electromagnetic part – 12 - 16 layers with 0.7 – 1.2 L rad Hadron part – 6 layers with 17 mm W

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Performance of the PHENIX NCC Prototype

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  1. Michael Merkin Skobeltyn Institute of Nuclear Physics Moscow State University Performance of the PHENIX NCC Prototype

  2. NCC Structure • Electromagnetic part – 12 - 16 layers with 0.7 – 1.2Lrad • Hadron part – 6 layers with 17 mm W • Two stripixel layers preshower and shower MAX detectors CALOR06: "Performance of the PHENIX NCC Prototype", Michael Merkin

  3. NCC Prototype. Overview CALOR06: "Performance of the PHENIX NCC Prototype", Michael Merkin

  4. NCC Prototype Parts CALOR06: "Performance of the PHENIX NCC Prototype", Michael Merkin

  5. NCC Prototype: Sensor CALOR06: "Performance of the PHENIX NCC Prototype", Michael Merkin

  6. Sensor Parameters • Thickness - 300 um (525 – plans for real device) • Silicon Resistivity >5 кОм•см • Pads -16, 15 * 15 mm2 each • Sensor size 62 * 62 mm2 • Active area 60 * 60 mm2 • One pad capacitance – 70 pF • Full Depletion Voltage (FDV) – 25 – 45 V CALOR06: "Performance of the PHENIX NCC Prototype", Michael Merkin

  7. Sensor Parameters CALOR06: "Performance of the PHENIX NCC Prototype", Michael Merkin

  8. Sensor Board CALOR06: "Performance of the PHENIX NCC Prototype", Michael Merkin

  9. Front-End Electronics -CR-1.4 • High dynamic range ~2500 MIPs • Noise - 2200 e- + 10 e-/pF • Number of channels per chip/board - 16 CALOR06: "Performance of the PHENIX NCC Prototype", Michael Merkin

  10. Front-End Electronics -CR-1.4 • Charge Sensitive preamplifier • Shaper • Analog pipeline • Multiplexer CALOR06: "Performance of the PHENIX NCC Prototype", Michael Merkin

  11. Readout electronics, charge sensitive amplifier CR-1 CALOR06: "Performance of the PHENIX NCC Prototype", Michael Merkin

  12. NCC requirements* • Energy resolution for one shower at least:σ/E=0.25/E1/2 • Two showers resolution in case:π0→γγ • Electronics dynamicrange >1000 MIP at 1 MIP resolution. *See E.Kistenev presentation CALOR06: "Performance of the PHENIX NCC Prototype", Michael Merkin

  13. What we have tested? • Direct connection of several channel from different layers to preamplifier channel (tower) • Three pads have been connected to one channel (will be 6) • Total load capacitance ~200 pF • This is almost limit for CR-1.4 CALOR06: "Performance of the PHENIX NCC Prototype", Michael Merkin

  14. Test run at U-70 IHEP, Protvino • 70 GeV protons • 10 GeV positrons CALOR06: "Performance of the PHENIX NCC Prototype", Michael Merkin

  15. MIP resolution Amplitude distribution for MIP (μ, p) CALOR06: "Performance of the PHENIX NCC Prototype", Michael Merkin

  16. Longitudinal e+ shower profile CALOR06: "Performance of the PHENIX NCC Prototype", Michael Merkin

  17. Energy resolution for 10 GeV e+. Full amplitude sum for all layers ~11% CALOR06: "Performance of the PHENIX NCC Prototype", Michael Merkin

  18. Picture of Positron Event #17 Run 39 CALOR06: "Performance of the PHENIX NCC Prototype", Michael Merkin

  19. CALOR06: "Performance of the PHENIX NCC Prototype", Michael Merkin

  20. Picture of Positron Event #29 Run 39 CALOR06: "Performance of the PHENIX NCC Prototype", Michael Merkin

  21. CALOR06: "Performance of the PHENIX NCC Prototype", Michael Merkin

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