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Large-Area GEM Detector Development at CMS, RD51, and Fl. Tech – A brief overview –

Large-Area GEM Detector Development at CMS, RD51, and Fl. Tech – A brief overview –. Marcus Hohlmann Florida Institute of Technology, Melbourne, FL. PHENIX tracking upgrade workshop - BNL, Dec 15 , 2010. Overview. Detector prototype development at CMS

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Large-Area GEM Detector Development at CMS, RD51, and Fl. Tech – A brief overview –

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  1. Large-Area GEM Detector Development at CMS, RD51, and Fl. Tech– A brief overview – Marcus Hohlmann Florida Institute of Technology, Melbourne, FL PHENIX tracking upgrade workshop - BNL, Dec 15, 2010

  2. Overview • Detector prototype development at CMS • Production techniques for large-area GEM detectors at Fl. Tech • RD51 Scalable Readout System for MPGDs M. Hohlmann – PHENIX tracking upgrade workshop

  3. Potential CMS high- upgrade A. Sharma, S. Colafranceschi Triple-GEM Prototype ~1m Potential muon upgrade at ||>1.6 with GEMs for triggering & tracking M. Hohlmann – PHENIX tracking upgrade workshop

  4. Large Triple-GEM prototype Largest GEM detector built to-date (CERN): Shielding Openings for VFAT electronics Readout (PCB w/ strips) Frame GEM Foil Drift plane HV divider Al frame with gas distrib. grooves Spacers 3 mm Al base plate A. Sharma, S. Colafranceschi M. Hohlmann – PHENIX tracking upgrade workshop

  5. Single-mask GEM foils TOP BOTTOM Single-mask technology is required for large-area GEM foil production. Recent quality of these foils equals standard double-mask GEMs. BOTTOM TOP TOP BOTTOM Single-mask GEM cross section HV sectors Examples of GEM hole quality 13 sectors 9 sectors 7 sectors 6 sectors Single mask GEM foil with spacer frame at CERN (active area: 990 mm long & 220-455 mm wide) 35 HV sectors per GEM foil with area of ~100 cm2each. A. Sharma, S. Colafranceschi M. Hohlmann – PHENIX tracking upgrade workshop

  6. Beam Test of Large-Area GEM 18-28 October 2010: Successful / Beam Test at RD51/H4 (CERN SPS) Tracking telescope Detector performed well. Data analysis ongoing. A. Sharma, S. Colafranceschi M. Hohlmann – PHENIX tracking upgrade workshop

  7. Fl. Tech GEM stretching technique Cost-effective GEM foil thermal stretching technique via infrared heating under clean room conditions in our high-bay lab (RD51 Technical Note in preparation) CMS high- prototype drift foil (1m long) Infrared lamps Works well ! Plexiglas frame along long side of frame M. Hohlmann – PHENIX tracking upgrade workshop

  8. Detectors with IR-stretched GEM foils Eight detectors built at CERN using oven (30cm  30cm active area) Transfer of know-how from CERN Two 30cm × 30cm detectors built at Fl. Tech using IR stretching method: Both detectors working 8 keV X-rays mips M. Hohlmann – PHENIX tracking upgrade workshop Sep 30, 2010 8

  9. Readout Electronics & DAQ • from few 100 to ~105 channels • full hardware chain tested by now Hans Müller Sorin Martoiu (CERN) APV25 or VFAT or BNL ATLAS Hybrid here . common DAQ part Full readout of 3030cm2 detector w/ 1500 strips • Florida Tech SRS application: • Commercial production of ~160 APV25 hybrids • DAQ software development • Event monitoring • First demonstration of chain APV+SRS+DATE+AMORE • First integration of SRS with 30cm×30cm GEM detectors • Largest user of SRS to-date (~15k ch.) X-Strip Cluster Y-Strip Cluster M. Hohlmann – PHENIX tracking upgrade workshop RD51 coll. is developing a commonScalable Readout System for MPGD’s 9

  10. Available Facilities at Fl. Tech High-Bay experimental area Thank you for your time! M. Hohlmann – PHENIX tracking upgrade workshop • Production & Testing • Medium-size clean room for prod. (~ cl. 1,000) • Small clean room for R&D (~ class 10,000) • Laminar flow hood for R&D (~ class 100) • Space in 350 m2 high-bay area for test stands • Gas detector lab (HV, gas supply & monitoring, 10 Gs LeCroy scope) • Construction materials (e.g. glues, coatings) • Readout & DAQ • Spare SRS r/o components in production for R&D work • Dual SRS use (20,000 ch.) for existing 30cm×30cm GEMs and for future R&D (PHENIX?) anticipated • DAQ & monitoring software for SRS currently under development

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