Os desafios da instrumentação e dos detectores na próxima ... › 2016 › files ›...
Transcript of Os desafios da instrumentação e dos detectores na próxima ... › 2016 › files ›...
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
Author’s name | Place, Month xx, 2007 | Event
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 + …
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
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
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
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)
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
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
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
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)
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)
Author’s name | Place, Month xx, 2007 | Event
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
Author’s name | Place, Month xx, 2007 | Event