LAPP Introduction Catherine ADLOFF for Yannis KARYOTAKIS LAPP

  • Slides: 10
Download presentation
LAPP Introduction Catherine ADLOFF for Yannis KARYOTAKIS

LAPP Introduction Catherine ADLOFF for Yannis KARYOTAKIS

LAPP short history 1976 1984 1976: Lapp was founded by physicists from Paris and

LAPP short history 1976 1984 1976: Lapp was founded by physicists from Paris and Orsay wishing to live closer to CERN. Most experiments at CERN (one at the Bugey Nuclear power) 2012: 1992 • Still many experiments at CERN (LHC) • New field of astroparticles: gravitational waves, high energy cosmic rays, search for anti-matter • Many experiments or R&D in far away places: Italy (OPERA, VIRGO), Namibia (HESS), Japan (ATF 2), international space station (AMS) 26/04/2012 Industry-Academia Matching Event on Micro-Pattern Gaseous Detectors 2

LAPP in a nutshell • 63 physicists (including 10 PHD students and 9 post-docs)

LAPP in a nutshell • 63 physicists (including 10 PHD students and 9 post-docs) In several large international collaborations working on accelerators (ATLAS and LHCb on the LHC at CERN, OPERA in Gran Sasso), astroparticle experiments (Virgo, AMS, HESS, CTA) and R&D: LC detectors (MICROMEGAS chambers), magnet stabilization for future accelerators, (LAVISTA/ATF 2), instrumentation for accelerators (CLIC), … • 78 engineers, technicians and administrative staff In three technical services: mechanics, electronics and computing Specific skills in automatics, microelectronics, slow control, data acquisition and Grid computing. T 2/T 3 LCG node and computing platform for Université de Savoie research labs (MUST) 26/04/2012 Industry-Academia Matching Event on Micro-Pattern Gaseous Detectors 3

Theoretical physics • LAPP also hosts a large [~33 researchers] theoretical physics laboratory, LAPTH

Theoretical physics • LAPP also hosts a large [~33 researchers] theoretical physics laboratory, LAPTH • Together, the two labs have created CIPHEA, which invites every year foreign experimentalists and theorists working in the field of LHC physics, dark matter, etc. . (~10 visitors / Yr) 26/04/2012 Industry-Academia Matching Event on Micro-Pattern Gaseous Detectors 4

ATLAS Detector at LHC (CERN) LHC • Higgs boson search • Search of new

ATLAS Detector at LHC (CERN) LHC • Higgs boson search • Search of new particles which are not part of the actual particle physics Standard Model LHC 22 m height, 44 m long, ~ 7000 tonnes Assembly of several sub-detectots ATLAS 26/04/2012 LAPP: Electromagnetic calorimeter and its electronics Tracker services (upgrade) Industry-Academia Matching Event on Micro-Pattern Gaseous Detectors 5

AMS Detector on the ISS 3 m height, 3 m large, ~ 8500 kg!

AMS Detector on the ISS 3 m height, 3 m large, ~ 8500 kg! International Space Station Assembly of several sub-detectors AMS LAPP: ECAL PM and its electronics Alpha Magnetic Spectrometer ECAL assembly in clean room at LAPP • Cosmic rays (composition and energy distribution) • Antimatter search • Dark Matter search 26/04/2012 Industry-Academia Matching Event on Micro-Pattern Gaseous Detectors Calorimètre Plomb-Scintillateur. Poids: 630 kg ECAL Photomultiplier and its electronics 6

R&D on Calorimeter • Hadronic calorimeter for Linear Colliders Particle Flow Algorithms : jet

R&D on Calorimeter • Hadronic calorimeter for Linear Colliders Particle Flow Algorithms : jet resolution s. Ej/Ej = 0. 3/√Ej(Ge. V) depends on : Imaging calorimeters: – track-shower matching Compact showers High granularity – shower separation • 3000 m 2 of active area • Our choice : Large area MICROMEGAS with embedded electronics 3 thresholds readout : Semi-Digital HCAL 26/04/2012 Industry-Academia Matching Event on Micro-Pattern Gaseous Detectors 7

MICROMEGAS for a SDHCAL • Characteristics: Proportional mode Bulk-MICROMEGAS 1 cm 2 cell readout

MICROMEGAS for a SDHCAL • Characteristics: Proportional mode Bulk-MICROMEGAS 1 cm 2 cell readout embedded readout electronics (3 thresholds) Operating at low voltage < 500 V High detection rate Robust, cheap (industrial process possible) Thickness: down to 6 mm JINST_4_P 11023 Number of events – – – – • Prototype basic performances • Efficiency > 97%, channel disparity < 1% • Multiplicity < 1. 1 – Excellent behaviour in electromagnetic and hadronic showers Industry-Academia Matching Event on 26/04/2012 Micro-Pattern Gaseous Detectors TB 2008 Deposited charged (f. C) MPGD 09 Number of hits – MIP most probable value : ~20 f. C – At 1. 5 f. C threshold : μ: 200 Ge. V TB 2009 e: 2 Ge. V 8 Number of absorbers

MICROMEGAS for a SDHCAL n 1 m 2 MICROMEGAS layer: n 9216 pads of

MICROMEGAS for a SDHCAL n 1 m 2 MICROMEGAS layer: n 9216 pads of 1 cm 2 (2% dead areas) n 6 independent bulks (TE-MPE-EM at CERN) 7 mm total thickness + 2 mm stainless steel fits in SS and W CALICE structures. Prototype with MICROROC chip n n n n n Non-flammable mixture Ar/CF 4/i. C 4 H 10 95/3/2 2 weeks operation in August 2011 (SPS) with less than 10 HV trips, no dead channels 10 days in GRPC-DHCAL in October 2011 (SPS) Efficiency = 98 %, hit multiplicity = 1. 15 , Noise = 0. 1 Hz for the complete 1 m 2 Response in hadronic showers, triggerless mode 4 MICROMEGAS layers expected this year 26/04/2012 Industry-Academia Matching Event on Micro-Pattern Gaseous Detectors 9

Our Competences 24 chips PCB Large area MICROMEGAS Sparks protection ASIC design High density

Our Competences 24 chips PCB Large area MICROMEGAS Sparks protection ASIC design High density PCB designed Data Acquisition (hardware, firmware and software) MICROROC chip • Data analysis software • • • 26/04/2012 Industry-Academia Matching Event on Micro-Pattern Gaseous Detectors 10