1. An Overview of the FPIX Detector Upgrade – CMS Experiment
Conett Huerta Escamilla,
University of Puerto Rico at Mayaguez (UPRM)
Advisors: Hector Mendez, PhD, (UPRM)
Leonard Spiegel, PhD, (Fermilab)
New Perspectives, June 10, 2014
Conett Huerta-E., [Jun 10, 2014]
An Overview of the FPIX Detector Upgrade – CMS Experiment

2. CMS Detector Conett Huerta-E., [Jun 10, 2014]
An Overview of the FPIX Detector Upgrade – CMS Experiment

3. US CMS Detector Upgrades in red
Magnet
Muon
Detectors
Hadron
Calorimeter
401.02
Electromagnetic
Calorimeter
Si Strip
Tracker
Not shown (off-detector)
Muon Trigger
Calorimeter Trigger
Pixel
Detector
401.03
401.04
Conett Huerta-E., [Jun 10, 2014]
An Overview of the FPIX Detector Upgrade – CMS Experiment

4. Pixel Current Pixel Upgrade Pixel Barrel FPiX FPiX Barrel FPiX FPiX
Proton
Beam
Proton
Beam
FPiX: 44.7M Pixels
0.7m2 active area
Barrel
FPiX
FPiX
Barrel
FPiX: 18M Pixels
0.3m2 active area
Proton
Beam
Proton
Beam
FPiX
FPiX
Conett Huerta-E., [Jun 10, 2014]
An Overview of the FPIX Detector Upgrade – CMS Experiment

5. CMS pixel system upgrade overview
Conett Huerta-E., [Jun 10, 2014]
An Overview of the FPIX Detector Upgrade – CMS Experiment

6. Summary of US Involvement
List of US institutes that will participate in the pixel upgrade:
Colorado, Cornell, Fermilab, Kansas, Kansas State, Mississippi, Nebraska, Purdue, Purdue Calumet, Rice, Rutgers, SUNY Buffalo, UCDavis, UIC, Vanderbilt
Also involved Johns Hopkins, Texas A&M, Tennessee, UC Riverside, Puerto Rico
Expressed interest: Ohio State
US is responsible for the construction of the Forward Disks
Europe and Taiwan responsible for the Barrel Pixel
Infrastructure (cooling plant, cooling distribution system, dry air system supplies) will be provided by our international collaborators (CERN+France+Taiwan) for the whole pixel project
Conett Huerta-E., [Jun 10, 2014]
An Overview of the FPIX Detector Upgrade – CMS Experiment

7. Forward Pixel (FPIX) Upgrades
Detector (FPIX)
401.03
Barrel Pixel
Detector (BPIX)
Pixel
Detector
Conett Huerta-E., [Jun 10, 2014]
An Overview of the FPIX Detector Upgrade – CMS Experiment

8. Conett Huerta-E., [Jun 10, 2014]
An Overview of the FPIX Detector Upgrade – CMS Experiment

9. Resulting Design in Comparison
Pixel Upgrade:
Baseline L = 2x1034 cm-2sec-1 & 25ns  50 pileup (50PU) with very small efficiency loss
Tolerate L = 2x1034 cm-2sec-1 & 50ns  100 pileup (100PU) with reduced performance
Survive Integrated Luminosity of 500 fb-1
(Evolutionary upgrade with) minimal disruption of data taking
Same detector concept: higher rate readout, data link & DAQ w/ less material forward
Robustify tracking : 4 hit coverage; 2 disks to 3 disks (can compensate point losses in strips)
(To be installed in end of 2016 extended technical stop)
Conett Huerta-E., [Jun 10, 2014]
An Overview of the FPIX Detector Upgrade – CMS Experiment

10. Pixel Module Conett Huerta-E., [Jun 10, 2014]
An Overview of the FPIX Detector Upgrade – CMS Experiment

11. Conett Huerta-E., [Jun 10, 2014]
An Overview of the FPIX Detector Upgrade – CMS Experiment

12. Sensor Chip Conett Huerta-E., [Jun 10, 2014]
An Overview of the FPIX Detector Upgrade – CMS Experiment

13. Silicon wafers Prototype wafer in FNAL cleanroom
6-inch wafer allows 8 sensors
All test results are uploaded to the construction database.
Conett Huerta-E., [Jun 10, 2014]
An Overview of the FPIX Detector Upgrade – CMS Experiment

14. Sensor Chip – ROC Assembly
Sensor with UBM
ROC with bumps
Conett Huerta-E., [Jun 10, 2014]
An Overview of the FPIX Detector Upgrade – CMS Experiment

15. Sensor Physics Conett Huerta-E., [Jun 10, 2014]
An Overview of the FPIX Detector Upgrade – CMS Experiment

16. Sensor Physics Conett Huerta-E., [Jun 10, 2014]
An Overview of the FPIX Detector Upgrade – CMS Experiment

17. Probe Station FNAL Purdue
Purdue and FNAL have very similar Cascade probe stations.
Probing sequence is automated with a circuit of IV measurements followed by a circuit of CV measurements.
~2 hours per wafer
The LabVIEW VI will be configured to output an XML file for to facilitate uploading the data to the construction database.
Care must be taken to protect the pixel bump pads, which face the chuck, and at the same time assure that all pixels are at the same potential.
FNAL
Purdue
Conett Huerta-E., [Jun 10, 2014]
An Overview of the FPIX Detector Upgrade – CMS Experiment

18. Thank you Conett Huerta-E., [Jun 10, 2014]
An Overview of the FPIX Detector Upgrade – CMS Experiment