os desafios da instrumentação e dos detectores na próxima ... › 2016 › files ›...
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Author’s name | Place, Month xx, 2007 | Event
Os desafios da instrumentação e dos detectores na
próxima década no CERN
Challenges for instrumentation and detectors at
CERN in the next decade
Rui MarquesLIP + Univ. de Coimbra
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Author’s name | Place, Month xx, 2007 | Event
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Author’s name | Place, Month xx, 2007 | Event
Gaseous Detectors• Resistive Plate Chambers (RPCs)
• Liquid / Double Phase Xe Detectors
• Thermal Neutron Detectors
• Gas Scintillation Proportional Counters
Calorimeters • Scintillating Crystals based Electromagnetic
Calorimeters
• Low energy photon detectors
• Scintillating fibers based Hadronic Calorimeters
Electronics and data acquisition• Microelectronics, optoelectronics and FPGA based systems
• Data acquisition and detector control systems
Detector Development for
Particle and Nuclear Physics
HADES (GSI)
RPC/PET + AUGER
LUX / LZ (USA)
SINE 2020 (H2020)
NEXT
(Canfranc, ES)
CMS (LHC)
ClearPEM
ATLAS (LHC)
CMS (LHC)
ClearPEM
COMPASS + LUX/LZ + …
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Author’s name | Place, Month xx, 2007 | Event
L = 1034 cm-2s-1
27 collisions/BX
L = 2´1034 cm-2s-1
55 collisions/BX
L = 7.5´1034 cm-2s-1
200 collisions/BX
Run I Run II Run III Run IV
Here we are
2035
– 7x larger instantaneous luminosity
Higher occupancy, huge pile-up
– Physics needs low reconstruction and trigger thresholds
– Upgraded detector & trigger capabilities required
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Author’s name | Place, Month xx, 2007 | Event
CMS Electromagnetic Calorimeter
Participation in the development of
photon and electron detectors based
on Scintillating Crystals (PbWO4) and
Avalanche Photodiodes (APDs)
CMS CONSTRUCTION
• 18 Crates; 240 Modules;
• 1200 Mezzanine boards
CMS UPGRADE
• Trigger ECAL optical links
• Timing detectors for the CT-PPS
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Author’s name | Place, Month xx, 2007 | Event
Microelectronics and Systems for Trigger & DAcQ
- CMOS 250nm, 130nm, 110 nm
- Mixed mode circuits
- ASICs for photosensor readout
(PMTs, APDs, SiPMs, etc.)
- Amplifiers, discriminators
- ADCs
- TDCs for ToF
- Readout, digitization and
DAQ systems scalable to
several 10’000 channels
128-ch SiP• 12-bit ADC for CMS ECAL
• Front-end ASIC of ClearPEM scanner
• TOFPET ASIC for ToF with SiPMs
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Author’s name | Place, Month xx, 2007 | Event
ATLAS hadron calorimeter TILECAL
STUDY
• Selection and characterization of plastic
WLS optical fibers and scintillators
CONSTRUCTION
• Aluminization of WLS fibers
• Setting the ~600000 optical fibers in
bundles, before assembly of the
modules (@ CERN, Barcelona and USA)
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Author’s name | Place, Month xx, 2007 | Event
Phase I (2018-2019)
• Gap scintillator/fibres replacement
(radiation damage)
Tile-muon trigger:
• Last TileCal layer for muon
trigger
TTC board built in Portugal
Phase II (2013-2025)
• Extension of Tile-muon trigger to
the full barrel region
• Detector electronics replacement
-HV distribution boards (w/ FCUL)
• Demonstrator prototypes
tested in test beams at CERN
• DCS: continuous upgrade
ATLAS hadron calorimeter TILECAL
UPGRADE
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Author’s name | Place, Month xx, 2007 | Event
ATLAS Trigger & Forward Detectors
UPGRADETrigger
• Commodity hardware tending to parallelism
Increased occupancy + advanced
algorithms → larger processing time
• Prototype s/w demonstrator to evaluate use of
GPUs for trigger
• LIP: calorimeter trigger parallelization
- Potential gain under evaluation
• Possible GPUs use at s/w triggers (Phase I and
II) or at first level trigger in Phase II
Forward proton tagging (AFP)
• Identify diffracted protons
LIP: detector control
system and HLT software
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Author’s name | Place, Month xx, 2007 | Event
COMPASS DCS
Technicalities
• WinCCOA (PVSS) distributed system
• ~ 23k datapoints
• ~ 24k parameters with alert handling
• ~ 39k parameters archived, archiving cycles as fast as 1 s
• ~ 4.7 x 109 values stored. Data streamed to a replica database
LIP full responsibility since 2003.
Very challenging (# of channels and variety of detectors), it
served as test bench for LHC experiments
Versatility and parallelism allow for the integration of new
detectors and control parameters at any time
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Author’s name | Place, Month xx, 2007 | Event
Tracking pads with
8x8 cm2 (3 layers)
RPC Detectors: TOFtracker – first results
-1000 -500 0 500 100010
0
101
102
103
Time difference (ps)
Even
ts/1
0p
s
Sigma=113 ps
113/2=80ps
Events=19881
• Excellent simultaneous position
and timing information proven
in small area prototype (2012)
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Author’s name | Place, Month xx, 2007 | Event
RPC Detectors: large area TOFtracker
Prototype under test &
calibration:
• Size: ~1550 x 1250 mm2
• 4 x 0.3 mm gas gaps
(multi-gap configuration)
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Conclusions
• LIP gave sound contributions in the R&D and in the
construction of both CMS and ATLAS (with COMPASS
as test bench for DCS)
• The present R&D projects and know how qualify the
LIP teams to actively contribute to the upgrades and
beyond
• The extent of the actual contributions (especially for the
HL-LHC) will depend on the resources to be made
available
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Author’s name | Place, Month xx, 2007 | Event