Transcript Gas Electron Multiplier (GEM) - a novel particle detector

Statement of Interest in
CMS MPGD High- Muon Upgrade
Florida Tech
CMS Muon Group
Marcus Hohlmann
Florida Institute of Technology, Melbourne, FL, USA
Workshop on CMS high- muon upgrade - CERN, Sep 30, 2010
Overview
• Currently Existing GEM Work at Florida Tech
– Experience with GEM detector construction & operation
– R&D for CMS High- muon upgrade
– GEM readout electronics & DAQ within RD51 SRS project
• Proposed Contributions to CMS High- Upgrade
– Primary: CMS GE1/1 Detector Production & Test Facility
– Secondary: Contribute to Readout & DAQ Development
• Fl. Tech Facilities Available for Upgrade Project
• Support Needed from USCMS, DOE
Sep 30, 2010
M. Hohlmann - Florida Tech Statement on Participation in CMS High-eta Muon Upgrade Project
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GEM Track Record
•
Construction and Testing of Triple-GEM detectors
•
RD51’s Common “Scalable Readout System” for MPGDs in 2010
– Small prototypes (2cm  2cm, 10cm  10cm) since 2004
– Small series production of ten 30cm  30cm detectors in 2009 & 2010
– Software development for SRS DAQ system (in ALICE DATE environment)
– Frontend hybrid card: PCB with APV25 chip (used in CMS Si Tracker)
•
Two recent publications on 30cm  30cm GEM detector design and performance
(IEEE NSS ’09 proc., NIM article submitted for SORMA ‘10 proc.)
Four publications on GEM application (muon tomography, DHS)
•
•
RD51 charter member (2008)
Assoc. Partner in CMS CUPID proposal (MPGDs) - Marie Curie ITN fellowships (2009)
•
Active participant in CMS high- upgrade group since early 2010:
Investigating production techniques for GE1/1 detectors at Florida Tech
•
– Stretching of CMS GE1/1 GEM foils
– Honeycomb spacers
•
Team: MH, 1 post-doc (Kondo Gnanvo), 4 grad students (Mike Staib,
Bryant Benson, Lenny Grasso, Amilkar Quintero (grad.)), several
undergrads
Sep 30, 2010
M. Hohlmann - Florida Tech Statement on Participation in CMS High-eta Muon Upgrade Project
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Ten Triple-GEM Detectors
Eight detectors built at CERN
Transfer of know-how from GDD
(30cm  30cm active area)
Two detectors built at Florida Tech
using innovative construction method
Both
detectors
working
mips
Sep 30, 2010
8 keV
X-rays
M. Hohlmann - Florida Tech Statement on Participation in CMS High-eta Muon Upgrade Project
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R&D - CMS High- upgrade
New, cost-effective GEM foil thermal
stretching technique via infrared heating
under clean room conditions in our highbay lab (RD51 Technical Note in prep.)
Works
well !
along long side of frame
Sep 30, 2010
M. Hohlmann - Florida Tech Statement on Participation in CMS High-eta Muon Upgrade Project
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Readout Electronics & DAQ
RD51 is developing a common Scalable Readout System for MPGD’s :
• from few 100 to ~105 channels
• full hardware chain currently being tested
Hans Müller
Sorin Martoiu
(CERN)
VFAT here
for CMS
high- det.
Florida Tech’s current contributions to Scalable Readout System
• Trying to get commercial production of ~200 hybrid front-end PCB’s going (for APV25 chip)
• DAQ software development (DATE for SRS) together with ALICE DATE experts
• Event monitoring (AMORE for SRS) with ALICE DATE experts
• First demonstration of chain APV+SRS+DATE+AMORE achieved
• First integration tests of SRS with our 30cm × 30cm GEM detectors
• Largest projected user of SRS to-date (~15k ch.)
Sep 30, 2010
M. Hohlmann - Florida Tech Statement on Participation in CMS High-eta Muon Upgrade Project
APV25
test
pulses
with a
128 ch.
readout
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Proposed Fl. Tech Contributions
to CMS High- Project
• Long-term
– Main interest: GE1/1 Detector Production & Testing Site
• Expand current setup in clean room for parallel production
• Adapt SRS DAQ for detector testing procedures
• Set up cosmic ray stand and X-ray source for post-production testing
– Secondary interest: DAQ & Event Monitoring
• Adapt s/w for VFAT if CMS decides to go with an SRS-based system
• Short-term & Medium-term
– Set up GEM foil testing box (measure leakage currents under gas)
– Construct and test a prototype detector (following current CERN
design) at Florida Tech using our IR stretching technique
– Contribute to beam tests of prototypes
– Continue R&D on series production techniques
Sep 30, 2010
M. Hohlmann - Florida Tech Statement on Participation in CMS High-eta Muon Upgrade Project
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Available Facilities
• GE1/1 Production & Testing
–
–
–
–
Large clean room for production (~ cl. 1,000)
Small clean room for R&D (~ cl. 10,000)
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)
• GE1/1 DAQ Development
High-Bay
experimental area
– Spare SRS r/o components expected
– Dual SRS use for 30cm × 30cm GEMs and
for CMS high- GEMs can be anticipated
– DATE & AMORE software
• CMS Tier-3 Grid Site
– Offline data analysis
– Can be made available to high- upgrade
collaborators for extensive simulation work
Sep 30, 2010
T3
M. Hohlmann - Florida Tech Statement on Participation in CMS High-eta Muon Upgrade Project
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Support Needs
• If CMS decides to move forward on MPGD
high- upgrade, we would need external
support to ramp up our effort.
• Potential sources:
– USCMS upgrade management for FY11
• Manpower: 1 Post-doc (~6 months), technician
• Prototype Production: Materials & Infrastructure
• Travel to CERN for test beams
– DOE FY11 base funding (starting June 2011)
• Manpower: Post-doc, graduate students
• Production infrastructure, Readout system
• Travel to CERN