and progress report first mip measurement with a complete chain of detector slab Silicon wafers for the prototype Mechanics PCB for prototype

Transcription

1 progress report Silicon wafers for the prototype Mechanics PCB for prototype VFE electronics DAQ Simulation and analysis and first mip measurement with a complete chain of detector slab Report prepared by J-C.Brient Presented by Henri Videau LLR CALICE ECAL ALCPG-SLAC January

2 LAL,LLR,LPC,PICM Imperial College, UCL, Cambridge, Birmingham, Manchester, RAL VFE, PCB, mechanics, DAQ, Assembling, + amorphous silicon DAQ, Physics studies ITEP,IHEP,MSU Tungsten, Silicon wafers Prague (IOP-ASCR) Silicon wafers SNU, KNU DAQ, PCB, Physics Report prepared by J-C.Brient CALICE ECAL ALCPG-SLAC January

3 1st structure (1.4mm of W plates) 2nd structure (2 1.4mm of W plates) 180 mm 3rd structure (3 1.4mm of W plates) VME Detector slab 370 mm M BEA Movable table Beam monitoring VFE Electronics 370 mm Silicon wafers Further Collaboration are welcome Free alveoli for R&D (new detector slab, cooling, ) CALICE ECAL ALCPG-SLAC January

4 62 mm Note the density Structure 3 Metal inserts (interface) Structure 2 Multi-layer W-Si prototype : 3 independent C-W alveolar structures according to the thickness of tungsten plates 30 detector slabs which are slit into central and bottom cells of each structure Active zone : 3 3 silicon wafers Structure 1 M. Merkin, A. Savin, A. Voronin MSU-Moscow High quality silicon wafers low leakage current (<10nA/pad) only 3 guard rings/wafer good (very good?) prod. rate Si Wafer : 6 6 pads of detection (10 10 mm 2 ) 62 mm Detector slab (30) ACTIVE AREA (18 18 cm 2 ) Similar production will start soon in Prague V.Vrba. (IOP-ASCR) CALICE ECAL ALCPG-SLAC January

5 Mechanics R&D and production Prototype M. Anduze, A.Busata LLR Structure 1 and 2 produced Support (type H) produced for stack 1,2 to do Structure-3 (4.2 mm) Support H for stack 3 Dead area Inter-alveoli is only 0,4 mm and ITEP, IHEP which make a VERY NICE production of good quality tungsten sheet R&D M. Anduze, J.Badier, A.Busata, F.Dohou, H.Videau LLR G.B. Kim, M. Nam-Il Baik KNU 7 mm 2 active layers and one layer of tungsten Thermal simulation Cooling design Large scale module CFi-W etc CALICE ECAL ALCPG-SLAC January

6 7 mm tungsten Carbone Fiber CALICE ECAL ALCPG-SLAC January

7 PCB PCB14 14 layers, layers,, 2mm 2mm (LAL, (LAL, SNU,KNU) SNU,KNU) Silicon Matrix (LLR,MSU, ASCR-Prague) (LLR,MSU, ASCR-Prague) DAQ (ICL, (ICL, UCL, UCL, RAL, RAL, Manchester, Manchester, et et LLR LLR,, SNU) SNU) VFE (LAL) 1x1 cm pads For test only, Scale ½ Mechanics (LLR) (LLR) CALICE ECAL ALCPG-SLAC January

8 First test at LLR Noise+Mip Noise Mip Normalised noise -2,5E-03-2,3E-03-2,0E-03-1,8E-03-1,5E-03-1,3E-03-1,0E-03-7,5E-04-5,0E-04-2,5E-04 0,0E+00 2,5E-04 5,0E-04 7,5E-04 1,0E-03 1,3E-03 1,5E-03 1,8E-03 2,0E-03 2,3E-03 2,5E-03 2,8E-03 3,0E-03 3,3E-03 3,5E-03 3,8E-03 4,0E-03 4,3E-03 4,5E-03 4,8E-03 5,0E-03 Tension (mv) CALICE ECAL ALCPG-SLAC January Nbr Event -30 S.Chollet, F.Gastaldi, A.Karar, J-Ch. Vanel LLR J.Fleury LAL Noise Expected mip position About ¼ MIP with FLC-PHY1 (signal not diff.) Série2 Série1 Série3 Signal First mip observation on a full chain Silicon Glue PCB VFE - DAQ

9 PCB for the prototype 14 layers, class 6 PCB Thickness 2.08 mm 3 boards 6 nov FLCPHY2 chips + 2 Calib chip Area without silicon wafer (physics and funding reasons) D.W. Kim, M.Naim-Il Baik KNU J.Fleury LAL designed at LAL VFE (LAL) Produced in KNU CALICE ECAL ALCPG-SLAC January

10 VFE - ECAL B. Bouquet, J. Fleury, C. de La Taille, G. Martin-Chassard LAL Orsay G. Bohner, J. Lecoq, S. Manen LPC Clermont FLC-PHY2 Signal (Gain 1, C f =1.6pF) Amplitude = 364mV/pC ± 7.8 mv = 2.33 mv/ MIP ± 2% rms Peaking time = 213 ns ± 1 ns rms Pedestals = mv ± 4.9 mv rms Noise Cd = 0 pf : Vn = 191 µv ± 1.8 µv Cd = 68pF : Vn = 500 µv Crosstalk : < 0.2% Linearity measured on all preamp gains Cf = 0.2, 0.4, 0.8, 1.6, 3 pf Well within ± 0.2 % Dynamic range (G1) Max output : 1.4 V (in 50Ω) = 600 Cf = 1.6 pf Noise (in 50Ω) : 200 µv (Cd = 0) 500 µv (Cd = 68pF) Dynamic range : 7000 (13 Cd = (11 Cd = 68 pf Can be extended by using the bi-gain outputs CALICE ECAL ALCPG-SLAC January

11 FLC-PHY2 Measured performances 1 channel OPA G10 Amp OPA G1 VFE schematic view 5500 NOISE ENC=f (Cd) y = 28,766x , ENC ( e-) Cd (pf) CALICE ECAL ALCPG-SLAC January

12 ADC - DAQ board (VME) for the prototype A. Baird (RAL), P. Dauncey (ICL), M.Warren (UCL), O.Zorba (ICL) Starting from this CMS board Production of Test board December 2003 multiplexed digitized signal to DAQ 96 analog input signal 96 VFE s (each with18 channels) Test with overall detector slab in January February 2004 CALICE ECAL ALCPG-SLAC January

13 ECAL prototype 2004 and after Cosmic test bench March «debug» the overall and Intercalibration of the 10K channels - Noise, Xtalk, etc. test beam at DESY - October 2004 (low energy electrons E<6 GeV) - First real test, (resolution, stability, noise, ) - validation of the e.m. simulation in border region (guard ring, ) test beam at FNAL/IHEP en (electrons/pions/protons up to 80 GeV - Validation of the overall calo. (ECAL+HCAL) - TEST of GEANT4 e.m. and hadronic showers simulation - Validation of the HCAL digital concept - comparison with the tile HCAL Performances with real data on the calorimeter ECAL+ HCAL CALICE ECAL ALCPG-SLAC January

14 G. Mavromanolakis, D. Ward, (Cambridge) N. Watson (Birmingham) J-C. Brient, C. Lo Bianco, P.Mora de Freitas, G. Musat (LLR) Old version of the ECAL prototype exist already within MOKKA New and more detailed version foreseen before LCWS04 First work in comparing geant3/geant4 First work in trying to understand geometrical effect 5 GeV GeVe - - reconstructed energy border between 2 wafers for projective geometry nominal electron energy is 10 GeV E HCAL /E total electron position CALICE ECAL ALCPG-SLAC January

15 Prototypes for test beam are good milestones for R&D On the technical test and choice On the detector concept DHCAL, hadronic shower in GEANT4, performances ECAL+HCAL, In parallel, R&D on the full scale detector are in progress Subdetector collaboration in CALICE-ECAL ECAL fulfilled the above recommendation Report prepared by J-C.Brient CALICE ECAL ALCPG-SLAC January

16 M e r o Report prepared by J-C.Brient i s t l u s re R A P n CALICE ECAL ALCPG-SLAC January 2004 S I 16