GEM Detector R&DGEM Detector R&Dat at Florida TechFlorida Tech

– “Get to know each other” –– “Get to know each other” –

Marcus Hohlmann

Florida Institute of Technology, Melbourne, FL

EIC Tracking R&D Group Meeting, April 11, 2011

Florida Tech OverviewFlorida 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

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Potential CMS high-Potential CMS high- upgrade upgrade

Potential muon upgrade at ||>1.6 with GEMs for

triggering & tracking

~1m

Triple-GEMPrototype

(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 plateA. Sharma, S. Colafranceschi

Largest GEM detectorbuilt to-date (CERN):

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Fl. Tech GEM stretching techniqueFl. Tech GEM stretching techniqueCost-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

CMS high-CMS high- prototype drift foil (1m long) prototype drift foil (1m long)

Workswell

Plexiglas framePlexiglas frame

Infrared lamps

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GEMs for Homeland Security ApplicationGEMs for Homeland Security Application

Triple-GEM detectors for Muon Tomography(30cm 30cm active area, 2D readout, 400µm pitch)

mips8 keVX-rays

GEMs

GEMs

GEMs

GEMs

Targets

Kondo Gnanvo @ CERN4/11/2011 5

RD51 SRS Readout Electronics & DAQRD51 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 orVFAT orBNL ATLAS Hybrid here .

Hans MullerSorin Martoiu(RD51, CERN)

• from few 100 to ~105 channels• full hardware chain tested by now

common DAQ part

X-Strip Cluster

Y-Strip Cluster

Full readout of 3030cm2 detector w/ 1500 strips

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Current SRS statusCurrent SRS status

128 ch.

2048 ch.

12,200 ch.

Fl. Tech’s SRS currently beingcommissioned at CERN

DATE DAQAMORE 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

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ADC FEC

APV Hybrid

FIT R&D Plan & Q for SimulationFIT 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?

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