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Michael Moll (CERN-PH-DT) – P1 coordinator

MC-Pad kickoff meeting 13-14.1.2009. Project P1 : Radiation Tolerant Mini-Strip Tracking Detectors. OUTLINE. Participants & Project outline Motivation : Sensors for Super-LHC & FAIR Framework & Work plan

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Michael Moll (CERN-PH-DT) – P1 coordinator

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  1. MC-Pad kickoff meeting 13-14.1.2009 Project P1 : Radiation Tolerant Mini-Strip Tracking Detectors OUTLINE • Participants & Project outline • Motivation: Sensors for Super-LHC & FAIR • Framework & Work plan • Some recent RD50 results & TCT measurementsPresentation by Nicola Pacifico – P1 ESR at CERN Michael Moll (CERN-PH-DT) – P1 coordinator

  2. P1 : Project Outline Aim: Development of Radiation Tolerant Silicon Strip Sensors for the Super-LHC and FAIR projects. Participants:CERNESR Nicola Pacifico (since 1.1.2009)Supervisor Michael MollGSIESR .. open position ..Supervisor Johann Heuser - University of Hamburg, Germany - Josef Stefan Institute, Ljubljana, Slovenia - National Institute of Materials Physics, Bucharest, RomaniaIndustrial Partner: - Micron -Micron Semiconductors Ltd. (UK) • Silicon strip sensors • High rate & high occupancy environment • High integrated radiation levels over lifetime • Single sided vs. Double sided sensors • Different timing calls for different electronics Challenge in combining the work of the 2 ESRs: “Super-LHC” and “FAIR” sensors have common and quite different requirements Detailed project description [MC-PAD: Part B – Stage 2 (page 8 and pages 35-37)] MC-PAD Kick-Off – 12-13 Jan 2009 -2-

  3. P1 : Motivation – Radiation Tolerant S-LHC Sensors Pixel sensors: max. cumulated fluence for LHC Strip sensors: max. cumulated fluence for LHC MC-PAD Kick-Off – 12-13 Jan 2009 -3-

  4. P1 : Motivation – Radiation Tolerant S-LHC Sensors Pixel sensors: max. cumulated fluence for LHC andS-LHC SLHC will need more radiation tolerant tracking detector concepts!Some new concepts and silicon materials have been recently proposed:MC-PAD P1 will be part of the ongoing R&D and prototyping on these sensors. Strip sensors: max. cumulated fluence for LHC andS-LHC MC-PAD Kick-Off – 12-13 Jan 2009 -4-

  5. P1 : Motivation – Silicon Sensors for the FAIR project • Silicon Tracking System (STS) for the CBM Experiment • Tracking nuclear collisions • Au+Au interactions, 25 GeV/u at 10 MHz interaction rate • up to 1000 charged particles/event ; track densities up to 30 cm-2/event • Double sided, double metal strip sensors as baseline solution • Radiation levels up to ~1015cm-2 (6 years operation) MC-PAD Kick-Off – 12-13 Jan 2009 -5-

  6. P1 : Radiation Tolerant Mini-Strip Tracking Detectors [More details: MC-PAD: Part B – Stage 2 (pages 35-37)] MC-PAD Kick-Off – 12-13 Jan 2009 -6-

  7. P1 : Framework and Collaborations Project has to be performed in close collaboration with international R&D efforts for SLHC and FAIR sensor developments. • RD50 collaboration • CERN internal project “WP4 of Council Whitepaper – Theme 3 R&D” • Project to support SLHC - sensor development activities of CERN Staff on ATLAS/CMS/RD50 (coordinator: M.Moll) • ATLAS and CMS groups working on the silicon tracker upgrades • CBM (FAIR) groups working on sensor developments and prototype STS system P1 will be performed in close collaboration with: … and naturally with related MC-PAD projects: • P2: Hybrid Pixel Detectors • P3: Radiation Hard Crystals & 3D Detectors • Projects on electronics: P9, P10, P11 MC-PAD Kick-Off – 12-13 Jan 2009 -7-

  8. P1 : Workplan/Milestones (see proposal page 37) M1/D1:Test set-ups at CERN & GSI ready … need ESR at GSI to start common activities! MC-PAD Kick-Off – 12-13 Jan 2009 -8-

  9. P1 : Radiation Tolerant Mini-Strip Tracking Detectors Presentation by ESR : Nicola PacificoRecent example of successful silicon material engineering MC-PAD Kick-Off – 12-13 Jan 2009 -9-

  10. TCT – Transient Current Technique A tool for observing the field profile I(t)=q E(v(t)) v(t)drift MC-PAD Kick-Off – 12-13 Jan 2009 -10-

  11. MCz: Neutron and 24 GeV/c proton irradiation • MCz-Si (Magnetic Czochralski Silicon) is a promising new material that shows improved Charge Collection Efficiency (CCE) after high radiation levels • Space Charge evolves differently after proton and neutron irradiation • My diploma thesis work suggested a possible difference in CCE after irradiation with different kind of particles MCz-n after 8.8x1014 neutrons/cm2 MCz-n after 14x1014 protons/cm2 introduction of negative space charge vs. introduction of positive space charge (Non Ionizing Energy Loss SCALING: 14x1014 p/cm2 equivalent to 8.8x1014 n/cm2) MC-PAD Kick-Off – 12-13 Jan 2009 -11-

  12. “Mixed Irradiations” n-type MCZ Mixed irradiations performed with: (a) 5x1014 neutrons (1 MeV equivalent fluence) [T.Affolder et al. 13th RD50 Workshop, Nov.2008] 500V MC-PAD Kick-Off – 12-13 Jan 2009 -12- MC-PAD Kick-Off – 12-13 Jan 2009 -12-

  13. “Mixed Irradiations” n-type MCZ Mixed irradiations performed with: (a) 5x1014 neutrons (1 MeV equivalent fluence) (b) 5x1014 protons (1 MeV equivalent fluence) [T.Affolder et al. 13th RD50 Workshop, Nov.2008] • FZ (n-in-n)Mixed Irradiation: Damage additive! 500V MC-PAD Kick-Off – 12-13 Jan 2009 -13- MC-PAD Kick-Off – 12-13 Jan 2009 -13-

  14. “Mixed Irradiations” n-type MCZ Mixed irradiations performed with: (a) 5x1014 neutrons (1 MeV equivalent fluence) (b) 5x1014 protons (1 MeV equivalent fluence) [T.Affolder et al. 13th RD50 Workshop, Nov.2008] • FZ (n-in-n)Mixed Irradiation: Damage additive! • MCZ (n-in-n)Mixed Irradiation:Proton damage “compensates” part of neutron damage (Neff) More charge collected at 500V after additional irradiation!!! 500V MC-PAD Kick-Off – 12-13 Jan 2009 -14- MC-PAD Kick-Off – 12-13 Jan 2009 -14-

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