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Test beam infrastructure for Linear Collider Detector R&D

Test beam infrastructure for Linear Collider Detector R&D. Felix Sefkow FP7 workshop Dec 7, 2007. This talk. LC detector R&D gaols and status Infrastructure for Integration CLIC and ILC Slides by Lucie Linssen. ILC. E CM = 500 GeV, upgradeable to 1 TeV 2 Detectors.

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Test beam infrastructure for Linear Collider Detector R&D

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  1. Test beam infrastructure for Linear Collider Detector R&D Felix Sefkow FP7 workshop Dec 7, 2007

  2. This talk • LC detector R&D gaols and status • Infrastructure for Integration • CLIC and ILC • Slides by Lucie Linssen Felix Sefkow Dec 7, 2007

  3. ILC • ECM = 500 GeV, upgradeable to 1 TeV • 2 Detectors • Relatively benign environment • Low radiation level except forward region • Comfortable bunch spacing Felix Sefkow Dec 7, 2007

  4. Felix Sefkow Dec 7, 2007

  5. LC detectors • Explore novel technologies to tackle ambitious performance goals Felix Sefkow Dec 7, 2007

  6. Particle Flow • Optimize jet energy resolution by reconstructing each particle individually • Make optimal use of tracker momentum resolution • 60% charged energy • And em calorimeter • 25% photons • Requires • “perfect” track efficiency • Highly granular calorimeters Felix Sefkow Dec 7, 2007

  7. HaRDROC VFE ASIC 1 cm2 pads 500 µ separation Detector technologies • Vertex detectors • Main tracking • TPC + Si • EM calorimeters • Integrated ultra-low power electronics • HAD calorimeters • Novel photo-sensors • Digital approach Examples, not complete! Micro-pattern gas detectors Silicon readout, Medipix Felix Sefkow Dec 7, 2007

  8. ILC test beam, present • EUDET pixel telescope • EUDET TPC magnet (sc, 1T) at DESY • CALICE em+had calo test beam at CERN Felix Sefkow Dec 7, 2007

  9. LC test beam needs • Electrons, muons and hadrons (pions, tagged protons) • 1-100 GeV single particles • PFLOW goes for single particles, ILC mean pion energy 10 GeV • Vx detector single point precision: mult scatt up to 100 GeV! • Higher energies for “jets” • Large statistics: 100 configurations * 1 million events • PFLOW: tails, fluctuations, sub-structure, correlations Felix Sefkow Dec 7, 2007

  10. Future: time structure • ILC-like time structure required for tests • Vx detector readout during bunch train • Space charge in TPC, r/o electronics • Calorimeter: electronics • 1 ms bunch trains, 300ns spacing • Realistic rates: 1 particle per bunch on detctor • Prevent radiation damage and pile-up Felix Sefkow Dec 7, 2007

  11. Magnet • Vertex detector resolution, mechanical stability • TPC sine-qua-non; resolution • Calorimeter: shower broadening • 1 T probably sufficient • TPC: solenoid • Calo: could do with dipole • A real test of PFLOW absolutely requires momentum spectrometry in multi-particle events Felix Sefkow Dec 7, 2007

  12. HCAL 1.5m ECAL Si-W sandwich 29 layers Technical prototypes • Scalable calor imeter modules which can be extrapolated to full ILC detector • Compact structures • Highly integrated electronics • Analog & digital • Embedded in detector volume • Ultra-low power electronics • pulsed • Low cost, industrialization • Likewise: Large TPC prototype, filed cage ECAL section HCAL architecture Felix Sefkow Dec 7, 2007

  13. Integration: next step DUT Felix Sefkow Dec 7, 2007

  14. Vertical integration • Test of particle flow: interplay of detector sub-systems • Mechanical integration: “common rail” • Common DAQ and slow control • Common data processing and reconstruction • Grid infrastructure • Devices under test interchangeable: flexible set-up Felix Sefkow Dec 7, 2007

  15. Infrastructure • Services: • Mechanical • Thermal • Electrical • Electronic • Managerial • project office • Magnets • Beyond FP7 scope • Must be “found” Felix Sefkow Dec 7, 2007

  16. LC test beam work packages • WP Project office • See talk by Martin Pohl • WP Beam line • ILC-like time structure • Mechanical interfaces and integration • Power distribution and control • Cooling infrastructure and thermal control • Slow control infrastructure, safety • Recording of meta-data, including alignment • Magnet(s) covering vertex/TPC/calorimeters Felix Sefkow Dec 7, 2007

  17. LC test beam work packages cont’d • WP Detector integration facilities • Integration clean room • QA infrastructure: specs and equipment • Sensors (strip/pixel/pad) • Monolithic • Front-end • Automated QA for mass production (calorimeters) • WP Data acquisition • Definition of the DAQ system architecture • Definition of common digital interfaces • Implementation of hierarchy and functionality • Definition and implementation of a data model Felix Sefkow Dec 7, 2007

  18. LC test beam work packages cont’d • WP Tracking infrastructure • Integration of EUDET pixel telescope, next generation pixels, front-end • Integration of TPC prototype, further development of Timepix • WP Calorimeter prototype infrastructure • Complement production of commensurate ECAL+HCAL proto (infrastructure for system level assessment and integration, crucial to energy flow concept) • 3rd generation electronics development (.35 or .18 m) • WP Energy flow reconstruction and grid infrastructure • Energy flow in magnetic field • Hadronic shower simulation study (using EUDET data) • Integration around LCIO, energy flow objects • Grid-based data repository and meta-data repository Felix Sefkow Dec 7, 2007

  19. CLIC detector • For full information, recent CLIC workshop: • http://project-clic07-workshop.web.cern.ch/project-CLIC07-workshop/ • and CLIC physics study report (2004): • http://documents.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-ph&id=0412251 • Main CLIC parameters (changed recently): • Energy √S = 3TeV • Luminosity 5*1034 cm-2s-1 • RF frequency12 Ghz • Field gradient 100 MV/m • Time structure: • 312 bunches separated by 0.5 ns • Repetition rate 50 Hz • CLIC detector is: • ~90% ILC detector + ~10% CLIC specifics • →CLIC is profiting a lot from present ILC detector R&D.

  20. Major CLIC-ILC detector differences • Higher energy → particle jets become more dense • Requires tracker with excellent double track resolution • Requires calorimeters with higher granularity • Is particle flow concept suitable for CLIC • Alternatives (e.g dream concept)? • Very short bunch spacing: 0.5 ns (CLIC) vs 337 ns (ILC) • Requires time-stamping to identify tracks for individual bunch crossings

  21. “short-term” CLIC detector R&D plans • Detectors simulations to study/optimise physics performance • Exploit synergy with ILC: • Common use of simulation tools • Check validity of ILC detector options for CLIC • Exploit other detector options, where needed • Study of CLIC forward regions and experiment implementation issues • Simulate and propose forward region options • First-phase engineering studies for CLIC detector implementation (in collaboration with machine study) • Fast time stamping • Requires work on sensors, analog and digital electronics • Possible synergy with NA62 (rare kaon decay) experiment • Optional study of alternative calorimetry options • Dream option with crystals?

  22. CLIC detector and this FP7 IA Looking for partners and synergy with the ILC/SLHC activities: • For simulation work, with common linear collider tools • For R&D on fast time stamping for tracking detectors (sensors, interconnects, electronics) • For engineering integration studies with common linear collider tools

  23. Summary • LC detectors aim at precision • But synergies with sLHC: electronics, rad-hard sensors, software • CLIC = 90% ILC + 10% specific • Technology proof-of-principle ~ done • Realistic prototypes underway: EUDET • Next step: system integration and test • Infrastructure • Beam line support • Detector integration • Infrastructure for production, test and integration Felix Sefkow Dec 7, 2007

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