GEM Detector R&D
at Florida Tech
– “Get to know each other” –
Marcus Hohlmann
Florida Institute of Technology, Melbourne, FL
EIC Tracking R&D Group Meeting, April 11, 2011
Florida Tech Overview
• CMS member since 2002
– Potential muon high- upgrade
with GEMs for tracking &
triggering (2009 - present)
– Muon Endcap Alignment
(2002 - present)
– CMS Tier-3 site on OSG
• PHENIX member since 2004
• RD51 charter member
– Large-area GEMs (WG1)
– Electronics (WG5)
• GEM R&D for DHS
• Notable Alumni
– Klaus Dehmelt (Ph.D. 2006)
– Georgia Karagiorgi (B.S. 2004,
Ph.D. MIT 2010, now Nevis Labs)
Kennedy Space Center
Florida
Tech
4/11/2011 2
Potential CMS high- upgrade
Potential muon upgrade
at ||>1.6 with GEMs
for triggering & tracking
~1m
Triple-GEM
Prototype
(2010)
Shielding
Readout (PCB w/ 256 strips)
Frame
GEM Foils
HV divider
Drift plane
Al frame with gas distrib. grooves
Openings for VFAT electronics
Spacers
3 mm Al base plate A. Sharma, S. Colafranceschi
Largest GEM detector
built to-date (CERN):
4/11/2011 3
Fl. Tech GEM stretching technique
Cost-effective GEM foil thermal stretching technique via infrared heating under clean room conditions in our high-bay lab
(see RD51 Technical Note: RD51-2011-04 )
along long side of frame
Works
well
Infrared lamps
4/11/2011 4
GEMs for Homeland Security Application
Triple-GEM detectors for Muon Tomography (30cm 30cm active area, 2D readout, 400µm pitch)
mips 8 keV
X-rays
GEMs
GEMs
GEMs
GEMs
Targets
Kondo Gnanvo @ CERN 4/11/2011 5
RD51 SRS Readout Electronics & DAQ
Florida Tech SRS application:
• Commercial production of 160 APV hybrids at Hybrid S.A.
• DAQ software development (DATE system)
• Development of Event monitoring s/w (AMORE suite)
• First demonstration of chain APV+SRS+DATE+AMORE
• Integration of SRS with 30cm×30cm GEM detectors
• Largest use case of SRS to-date (~15k ch.)
RD51 coll. is developing a common Scalable Readout System for MPGD’s
APV25 or
VFAT or
BNL ATLAS
Hybrid here .
Hans Muller
Sorin Martoiu
(RD51, CERN)
• from few 100 to ~105 channels
• full hardware chain tested by now
X-Strip Cluster
Y-Strip Cluster
Full readout of 3030cm2 detector w/ 1500 strips
4/11/2011 6
Current SRS status
128 ch.
2048 ch.
12,200 ch.
Fl. Tech’s SRS currently being
commissioned at CERN
DATE DAQ
AMORE Monitoring
(Total cost ~20 kEUR)
- 120 APVs needed for
Muon Tomography
~ 40 APVs & 2 ADCs
& 2 FECs available
for R&D (~ 4k ch.)
40 MHz sampling 756 strips
4/11/2011 7
ADC FEC
APV Hybrid
FIT R&D Plan & Q for Simulation
-100
-80
-60
-40
-20
0
20
40
60
80
100
3000 3500 4000 4500 5000 5500 6000 6500 7000
Reconstructed Position [µm]
Po
sit
ion
Err
or
[µm
]
All figures, Bo Yu, BNL
Plan:
Follow up on previous BNL R&D
& study zigzag-strip readout to reduce
# of readout strips & consequently
cost of electronics for large tracker
Questions:
• What spatial resolution would be
needed for an EIC tracker?
• Can it be different for and ?
• What is the expected occupancy?
• What readout cell size would be needed?
4/11/2011 8