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Jan 10, 2004 – SLAC ALCPG WorkshopK. Riles (U. Michigan) – Detector R&D1 University-Based Linear Collider Detector R&D (UCLC & LCRD) Keith Riles University.

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Presentation on theme: "Jan 10, 2004 – SLAC ALCPG WorkshopK. Riles (U. Michigan) – Detector R&D1 University-Based Linear Collider Detector R&D (UCLC & LCRD) Keith Riles University."— Presentation transcript:

1 Jan 10, 2004 – SLAC ALCPG WorkshopK. Riles (U. Michigan) – Detector R&D1 University-Based Linear Collider Detector R&D (UCLC & LCRD) Keith Riles University of Michigan ALCPG Workshop - SLAC January 10, 2004

2 Jan 10, 2004 – SLAC ALCPG WorkshopK. Riles (U. Michigan) – Detector R&D2 Will address UCLC(NSF) and LCRD(DOE) proposals for Total of 39 projects to cover in less than 15 minutes! Luminosity, Energy & Polarization (9 projects) Vertex Detector (3 projects) Tracking (11 projects) Calorimetry (13 projects) Muon System & Particle Identification (3 projects)

3 Jan 10, 2004 – SLAC ALCPG WorkshopK. Riles (U. Michigan) – Detector R&D3 Cannot do justice to proposed work (see w.g. leader reports!) Will merely summarize the projects briefly and their context Will NOT address non-U.S. projects (e.g., Canadian research) For each project, will list Short summary of proposed work Official contact person, institution, 3-year funding request, UCLC / LCRD affiliation Collaborating institutions, where applicable (not all collaborators request funding)

4 Jan 10, 2004 – SLAC ALCPG WorkshopK. Riles (U. Michigan) – Detector R&D4 Luminosity, Energy & Polarization Some issues: Beamstrahlung uncertainty requires measuring energy- dependence of luminosity – cannot trust calculation Want accuracy of 100-200 ppm on energy for a single-shot accelerator Want accuracy of ~0.25-0.50% on polarization (0.1% for Giga-Z option)

5 Jan 10, 2004 – SLAC ALCPG WorkshopK. Riles (U. Michigan) – Detector R&D5 Luminosity, Energy & Polarization Luminosity measurement projects: Measuring integrated luminosity from parallel-plate avalanche detectors and from secondary emission detectors Yaser Onel – Iowa $113K (LCRD) [+ Fairfield, Bogazici, Cukurova, METU, INFN] Measuring integrated luminosity bunch-by-bunch with a fast-gas Cerenkov detector (using shiny conduits for light transport to external photodetectors) John Hauptman – Iowa State $125K (LCRD) [+ SLAC, Texas Tech, Oregon, Purdue]

6 Jan 10, 2004 – SLAC ALCPG WorkshopK. Riles (U. Michigan) – Detector R&D6 Luminosity, Energy & Polarization Beam diagnostics projects: Measuring beam shape from low-angle Bethe-Heitler pairs using thin, 3- dimensional, rad-hard and fast silicon radiation sensors Sherwood Parker – Hawaii $93K (LCRD) Measuring beam positions/sizes from polarization of visible beamstrahung (incoherent) and microwave beamstrahlung (coherent, for low beam strengths) Giovanni Bonvicini – Wayne State $143K (UCLC)

7 Jan 10, 2004 – SLAC ALCPG WorkshopK. Riles (U. Michigan) – Detector R&D7 Luminosity, Energy & Polarization Beam energy measurement projects: Upstream chicane spectrometer using precise BPM nano-movers to measure deflection in dipole magnet (periodic, invasive measurement)  ΔE/E ~ 10 -5 Mike Hildreth – Notre Dame $357K (UCLC) Extraction line (downstream) spectrometer via SLC-style synchroton radiation stripes, using fiber/pmt readout and new beam optics  ΔE/E ~ 10 -4 Eric Torrence – Oregon $133K (LCRD) [+ Massachusetts]

8 Jan 10, 2004 – SLAC ALCPG WorkshopK. Riles (U. Michigan) – Detector R&D8 Luminosity, Energy & Polarization Polarimetry measurement projects: Quartz fiber calorimetry for scattered Compton photon & electrons, W asymmetry Yaser Onel – Iowa $103K (LCRD) [+ Fairfield, Iowa State, Karlsruhe, Bogazici, Cukurova] Compton polarimeter backgrounds (realistic simulation of scattered beam, sychrotron radiation, beam-gas, radiative Bhabha, etc.) William Oliver – Tufts $28K (LCRD) [+SLAC] Quartz fiber calorimetry for scattered Compton photon & electrons Stefan Spanier – Tennessee $41K (LCRD)

9 Jan 10, 2004 – SLAC ALCPG WorkshopK. Riles (U. Michigan) – Detector R&D9 Vertex Detector Some issues: Heavy flavor tagging critical to important physics processes  Need excellent impact parameter resolution: O(5 μm) Pattern recognition in vertex detector critical for projective- geometry central trackers Low beam rates, low radiation allow thin, precise, segmented silicon  CCD’s But SLD-generation CCD’s not rad-hard or fast enough LHC-style active pixel devices too thick and coarse  Improve both technologies!

10 Jan 10, 2004 – SLAC ALCPG WorkshopK. Riles (U. Michigan) – Detector R&D10 Vertex Detector Projects: Development of radiation-hard, faster, thinner CCD’s, advanced readout chips; initiate CMOS development studies Charles Baltay – Yale $375K (LCRD) [+ Oregon, Oklahoma, SLAC, RAL, KEK, FNAL] Development and design of a CCD readout ASIC with data reduction; DAQ interface development Patrick Skubic – Oklahoma $245K (UCLC) [+Boston] Development of thin, finer hybrid silicon pixels (bump-bonded); studies of the mechanical behavior of thin silicon Daniella Bortoletto – Purdue $197K (UCLC)

11 Jan 10, 2004 – SLAC ALCPG WorkshopK. Riles (U. Michigan) – Detector R&D11 Tracking Some issues: Need excellent p t resolution: σ(1/p t ) ~ O(few×10 -5 GeV -1 )  Order of magnitude better than existing HEP detectors Need good multi-track separation and trajectory extrapolation into calorimeter for energy flow Need good forward tracking for high-energy t-channel processes (e.g., chargino production) Want good θ resolution [σ θ ~ O(0.01 mrad)] for Bhabha acolinearity (differential luminosity)

12 Jan 10, 2004 – SLAC ALCPG WorkshopK. Riles (U. Michigan) – Detector R&D12 Tracking Silicon Detector Projects: Tracking software optimization for a silicon strip detector (using vertex detector tracks as “seeds”) Milind Purohit – South Carolina $116K (LCRD) Development of a low-mass silicon strip central tracker (long shaping time readout, prototyping, design optimization with simulations) Bruce Schumm – Santa Cruz $245K (LCRD) [+Michigan, SLAC, LPNHE-Paris]

13 Jan 10, 2004 – SLAC ALCPG WorkshopK. Riles (U. Michigan) – Detector R&D13 Tracking Silicon Detector Projects: (cont.) Development of a silicon drift detector central tracker (large wafer, thinner silicon, prototyping, simulations) Rene Bellwied– Wayne State $462K (UCLC) [+ Brookhaven] Development of silicon detector real-time alignment system (frequency-scanned interferometry); physics benchmarks for tracker performance Keith Riles – Michigan $307K (UCLC)

14 Jan 10, 2004 – SLAC ALCPG WorkshopK. Riles (U. Michigan) – Detector R&D14 Tracking Time Projection Chamber Projects: GEM development (increased gain, fabrication, performance studies, electronics, simulation) Peter Fisher – MIT $142K (LCRD) [+Harvard] TPC R&D (prototype studies, GEM / MicroMegas development) Dan Peterson – Cornell $366K (UCLC) [+Purdue] Development of a negative ion TPC (design optimization, prototyping) Giovanni Bonvicini – Wayne State $280K (UCLC) [+Temple]

15 Jan 10, 2004 – SLAC ALCPG WorkshopK. Riles (U. Michigan) – Detector R&D15 Tracking Intermediate / Timing Layer Project: Scintillating fibers for intermediate tracker (e.g., between TPC & vertex detector) with precise timing & bunch identification (prototyping, readout options, cosmic ray studies, simulations) Rick Van Kooten – Indiana $113K (LCRD) [+Fermilab, Notre Dame]

16 Jan 10, 2004 – SLAC ALCPG WorkshopK. Riles (U. Michigan) – Detector R&D16 Tracking Forward Tracking Projects: Development & evaluation of forward tracking (simulation & optimization) Mike Strauss – Oklahoma $128K (LCRD) Straw tube chamber development for forward tracking (radiation studies, prototyping) Keith Baker – Hampton $200K (UCLC) Development of a GEM-based forward tracker (prototyping, test beam studies, simulations) Lee Sawyer – Louisiana Tech $280K (LCRD)

17 Jan 10, 2004 – SLAC ALCPG WorkshopK. Riles (U. Michigan) – Detector R&D17 Calorimetry Some issues: Need excellent dijet mass resolution: σ(M dijet ) ~ O(few GeV)  Need σ E /E ~ 30%/sqrt(E) for individual jets Most jet energy in charged particles and π 0 photons  “Energy flow” algorithm should work well if detector permits  Suggests fine granularity (transverse/longitudinal) in electromagnetic calorimeter, e.g., 30 layers of 0.25 cm 2 cells “Digital hadron calorimeter” may offer attractive trade of energy resolution for spatial resolution Magnet costs may limit outer hcal radius  May need to rely on muon system as “tail catcher”

18 Jan 10, 2004 – SLAC ALCPG WorkshopK. Riles (U. Michigan) – Detector R&D18 Calorimetry Simulation and Optimization Projects: Optimization of detector elements, energy flow algorithms; RPC studies Mark Oreglia – Chicago $318K (UCLC) Development of energy-flow algorithms, simulation & reconstruction tools, optimization of hadron calorimetry Dhiman Chakraborty – N. Illinois $400K (UCLC) Investigation, design optimization (energy, timing, spatial resolution) of calorimeters; examine silicon/scintillator hybrid (tungsten or lead converter) Graham Wilson – Kansas $364K (UCLC) Design study for an active mask (separate stau + stau – from γγ  τ + τ – ) Teruki Kamon – Texas A&M $142K (LCRD)

19 Jan 10, 2004 – SLAC ALCPG WorkshopK. Riles (U. Michigan) – Detector R&D19 Calorimetry Electromagnetic Calorimeter Projects: Development of a silicon-tungsten test module (silicon detectors, bump- bonded readout chips, gap optimization with simulations, mechanical issues) Ray Frey – Oregon $245K (LCRD) [+SLAC] Energy flow studies with silicon-tungsten and lead-tungstate crystal calorimetry; tests of crystal performance (resolution, linearity, uniformity) Usha Mallik – Iowa $145K (LCRD)

20 Jan 10, 2004 – SLAC ALCPG WorkshopK. Riles (U. Michigan) – Detector R&D20 Calorimetry Hadronic Calorimeter Projects: Scintillator/tungsten calorimeter (ecal&hcal) with novel geometrical design (staggered scintillating tiles with fiber readout); simulation, reconstruction, prototyping, electronics for readout – HV ASIC) Uriel Nauenberg – Colorado $333K (LCRD) [+Fermilab] Design & Prototyping of digital hadron calorimeter using scintillators (simulations, light yield measurements, fiber interface optimization) Vishnu Zutshi – N. Illinois $533K (UCLC) [+Illinois-Chicago] Fast response tile scintillation calorimetry development (focus on fiber: faster material, better readout geometry, multiplexing by geometry/timing correlation) Mike Hildreth – Notre Dame $181K (UCLC)

21 Jan 10, 2004 – SLAC ALCPG WorkshopK. Riles (U. Michigan) – Detector R&D21 Calorimetry Hadronic Calorimeter Projects: (cont.) Study of resistive plate chambers as active medium in a hadron calorimeter (build 1 m 3 prototype, ASIC design, DAQ) Jose Repond – Argonne $780K (LCRD) [+Boston, Chicago, Fermilab] Cerenkov Compensated Calorimetry (dual readout of ionization & Cerenkov signals via filters, design optimization) Yasar Onel – Iowa $163K (LCRD) [+Fairfield, Iowa State, Bogazici, Cukurova, METU, INFN] Digital hadron calorimetry using GEM’s (simulations, prototype geometries, new GEM sources, cosmic tests) Andy White – Arlington $343K (LCRD)

22 Jan 10, 2004 – SLAC ALCPG WorkshopK. Riles (U. Michigan) – Detector R&D22 Calorimetry Hadronic Calorimeter Projects: (cont.) Micro-machined vacuum photodetectors (investigate silicon micro-channel plates, diamond-based transmission secondary electron dynodes, intensifer tube construction) Yasar Onel – Iowa $163K (LCRD) [+Fairfield, Bogazici, Cukurova, META, INFN]

23 Jan 10, 2004 – SLAC ALCPG WorkshopK. Riles (U. Michigan) – Detector R&D23 Muon System & Particle Identification Some issues: Muon identification important to many new physics processes Need good operation over wide momentum range (high efficiency, good π rejection) May need to serve as calorimeter tail catcher Large subdetector!  Potential cost driver

24 Jan 10, 2004 – SLAC ALCPG WorkshopK. Riles (U. Michigan) – Detector R&D24 Muon System & Particle Identification Projects: Iron/Scintillator based muon system R&D (simulations, test module construction, electronics, DAQ) Paul Karchin / Gene Fisk – Wayne State / Fermilab $261K (LCRD) [+Davis, N. Illinois, Notre Dame, Rice, Austin] Iron/Scintillator based muon system R&D (optical fiber issues) Mitchell Wayne – Notre Dame $173K (UCLC) [+N. Illinois] Study of Geiger mode avalanche photodiodes for muon system readout (study performance, prototyping, industrialization) Bob Wilson – Colorado State $216K (LCRD)

25 Jan 10, 2004 – SLAC ALCPG WorkshopK. Riles (U. Michigan) – Detector R&D25

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