Summary of Calorimeter-Muon sessions Daniel Jeans, LLR - Ecole - PowerPoint PPT Presentation

Summary of Calorimeter-Muon sessions Daniel Jeans, LLR - Ecole polytechnique 21 presentations impossible to cover everything in sufficient detail... LCWS2010 Beijing LCWS2010 Beijing 1

Introduction Calorimeters for PFA → high granularity → physically compact → large active area Muon system → highly efficient muon ID → multi-layer, large active area Sampling detectors with thin, highly segmented active layers strong focus on demonstrating technological feasibility for DBD LCWS2010 Beijing 2

Active layers - gaseous: RPC, MPGD - scintillator, with SiPM/MPPC... readout - semi-conductors: Silicon, GaAs Absorber FE electronics Physics/simulation results - very forward electron reconstruction - hadron shower models - software compensation LCWS2010 Beijing 3

Active layers - gaseous: RPC, MPGD - scintillator, with SiPM/MPPC... readout - semi-conductors: Silicon, GaAs Absorber FE electronics Physics/simulation results - very forward electron reconstruction - hadron shower models - software compensation LCWS2010 Beijing 4

Barbar RPC autopsy Small chambers Efficiency vs HV bakelite glass RPC chamber studies glass Band Belkhadi Lu LCWS2010 Beijing 5 Efficiency vs rate Repond

Development of large 1m-scale RPC-based detectors (semi)-digital readout Spraying techniques Belkhadi, Lumb, Repond First tests of 1m2 RPC chamber Gas flow simulations LCWS2010 Beijing 6

GEMs and Micromegas - preparing m 2 detectors Chefdeville, White micromegas GEM LCWS2010 Beijing 7

Active layers - gaseous: RPC, MPGD - scintillator, with G-APD readout - semi-conductors: Silicon, GaAs Absorber FE electronics Physics/simulation results - very forward electron reconstruction - hadron shower models - software compensation LCWS2010 Beijing 8

SiPM & scintillator New CPTA photo-sensors ~800 pixels lower noise than old MEPhi/Pulsar PDE measurement Scintillator tile uniformity Danilov, Gentile LCWS2010 Beijing 9

Prototype results and developments Fabbri, Khan,Polak Next generation A-HCAL Scintillator ECAL S = 15%, C = 1.4% Light distribution for calibration LCWS2010 Beijing 10

Active layers - gaseous: RPC, MPGD - scintillator, with SiPM/MPPC... readout - semi-conductors: Silicon, GaAs Absorber FE electronics Physics/simulation results - very forward electron reconstruction - hadron shower models - software compensation LCWS2010 Beijing 11

ECAL, forward calorimeters CALICE SiW ECAL angular resolution ~106/sqrt(E) + 4 mrad Hamamatsu Rad-hard sensor for beamCal Prototype results & sensor development LCWS2010 Beijing 12 Faucci Giannelli, Jeans, Lohmann

ECAL Demonstrator ECAL, FCAL – next generation structure closer to real detector modules planned FCAL stack Scintillator module Heat shield ECAL cooling PCB Grondin, Jeans, LCWS2010 Beijing 13 Lohmann Scintillator Photo-sensor W slab

Active layers - gaseous: RPC, MPGD - scintillator, with SiPM/MPPC... readout - semi-conductors: Silicon, GaAs Absorber FE electronics Physics/simulation results - very forward electron reconstruction - hadron shower models - software compensation LCWS2010 Beijing 14

More compact HCAL for CLIC: W absorber Speckmayer Tungsten Absorber Use existing m 2 HCAL planes AHCAL for now Later also gas Test beam late 2010 LCWS2010 Beijing 15

Active layers - gaseous: RPC, MPGD - scintillator, with SiPM/MPPC... readout - semi-conductors: Silicon, GaAs Absorber FE electronics Physics/simulation results - very forward electron reconstruction - hadron shower models - software compensation LCWS2010 Beijing 16

Front-end ASICs First tests of power pulsing underway Typically integrated into detector volume Next generation of *ROC chips de la Taille LCWS2010 Beijing 17

Active layers - gaseous: RPC, MPGD - scintillator, with SiPM/MPPC... readout - semi-conductors: Silicon, GaAs Absorber FE electronics Physics/simulation results - very forward electron reconstruction - hadron shower models - software compensation LCWS2010 Beijing 18

O. Novgorodova Electron reconstruction in BeamCal Stau background rejection Less efficient for SB2009 LCWS2010 Beijing 19

Test-beam results of current detector prototypes Test hadronic models in GEANT Compare shower shapes of TB data models Large differences some models better than others none perfect Pi+- shower width in SiW ECAL Pi+- longitudinal profile in AHCAL Faucci Giannelli, Lu LCWS2010 Beijing 20

Software compensation in scintillator AHCAL - use high granularity Energy resolution improved by ~25% Better linearity Seidel LCWS2010 Beijing 21

Summary Several technologies under study gas, scintillator, semi-conductor Previous calorimeter prototypes - understood performance - detector reconstruction - testing hadronic models Producing prototypes with - close to size of detector modules - integrated electronics, services LCWS2010 Beijing 22