Activités R&D Calice. High Granular Timing Detector ATLAS Phase II Upgrade

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Ezra Peters
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Instituts IN2P3 LPNHE 5. Simulation et performance 6. Géométrie 7.

1 High Granular Timing Detector ATLAS Phase II Upgrade 1. Enjeux de physique 2. Organisation 3. Échéances 4. Instituts IN2P3 LPNHE 5. Simulation et performance 6. Géométrie 7. Senseurs et connexions 8. Scénario de construction 9. Activités en 2017 Activités R&D Calice 1

Physics goals Instantaneous luminosities at HL-LHC up to L 7.

2 Physics goals Instantaneous luminosities at HL-LHC up to L cm 2 s 1 Increase of pileup on average to 200 interactions (or more) per bunch crossing Degradation of electron/photon and jet/transverse missing energy performance in the end-cap and forward region (coarser electromagnetic calorimeter granularity) Proposal for a High Granular Timing Detector (HGTD) in front of the end-cap LAr calorimeters (2.4 η ~4.2) for pile-up mitigation at Level-0 (L0) trigger level and in offline reconstruction Precision timing information for charged and neutral particles Time resolution of the order of 50 pico-seconds per readout cell Assignment the energy deposits to different proton-proton collision vertices Reduction of the contribution from pile-up jets Improvements in performance for physics processes with forward jets (vector-boson fusion and vector-boson scattering processes) and for physics signatures with large missing transverse energy. 2

3 General organisation IN2P3 responsibilities 3

4 General organisation LPNHE activities 4

5 CERN France: CEA/Saclay CPPM/Marseille LAL/Orsay LPNHE/Paris Omega/Paris Germany Justus-Liebig-University, Giessen Slovenia Spain: IJS/Ljubljana CNM-IMB-CSIC/Barcelona IFAE/Barcelona United States ANL/Argonne, IL BNL/Upton, NY University of California Santa Cruz, CA State University of New York at Stony Brook, New York University of Iowa/Iowa City, IA University of Oregon, Eugene, OR University of Pennsylvania/Philadelphia, PA SLAC/Stanford, CA HGTD: 6 countries - 18 Institutes (*) (*) Institutes/groups that have submitted Expressions of Interest, or with active HGTD members 5

6 Milestones before TDR Draft November 20 th ongoing ongoing ongoing DONE ongoing ongoing 6

7 French participation up to now LAL 4 FTE Physicists: 1.6 FTE Nikola Makovec Laurent Serin Dirk Zerwas Technical Staff: 1.4 FTE Aurélien Blot Julien Bonis Leonid Burmistrov Aboud Falou Stefan Simion Students Corentin Allaire (internship->phd 1 FTE) Daniele Ruini (internship) Omega: 1 FTE Pierrick Dinaucourt Christophe de La Taille Gisele Martin-Chassard Nathalie Seguin-Moreau LPNHE 2.2 FTE Physicists: 1.2 FTE Marco Bomben Giovanni Calderini Didier Lacour Bertrand Laforge Giovanni Marchiori Irena Nikolic Technical Staff: 1 FTE Francesco Crescioli Jacques David Patrick Ghislain Jean-Marc Parraud Students Charles Merlin (internship) Total: 7.2 FTE Physicists: 3.8 FTE Technical Staff: 3.4 FTE 7

8 LPNHE participation up to now and later Physicists: Marco Bomben Giovanni Calderini Didier Lacour Bertrand Laforge Giovanni Marchiori Irena Nikolic Bogdan Malaescu Sophie Trincaz-Duvoid Technical Staff: Francesco Crescioli Jacques David Patrick Ghislain Jean-Marc Parraud Students: Charles Merlin (internship 2016) PhD student

9 Detector simulation Common dimensions: Insulation 5mm Carbon fibre 1mm Cooling 3mm CO2 separation 45mm SiSensor 0.15mm PCB+Electronics=2.7mm Tolerances 1mm Timing detector: 43mm Preshower detector: 53mm Absorber: 3.5mm 1X0 Rmin=285mm (η=3.2) 9

Detector performance 1 TeV muons readout hit in 4 samplings Electrons Pt=45 GeV 4 th layer (sampling 3) η=3 ; r=349mm Muons detection efficiency - 98.

10 Detector performance 1 TeV muons readout hit in 4 samplings Electrons Pt=45 GeV 4 th layer (sampling 3) η=3 ; r=349mm Muons detection efficiency % detected - Half of undetected events related to the central dead zone - No showering effect: most unfavorable case Geometry definition still under optimisation Electrons deposited energy Dynamic range preshower: 600MIPs Dynamic range timing: 30MIPs 10

11 Occupancy Detector geometry Baseline: geometry with cassette but all parameters still under discussion R=800mm, η=2.18 R=650mm, η= R=285mm, η= R=100mm, η= % mm η=3.2 Occupancy < 10% - with 1x1mm 2 cell at R < 285mm ASU : 196mm x197.5mm - with 3x3mm 2 cell at R > 285mm Detector area 110mm<R<650mm Maximum size R=800mm 11

First sensors productions First 50 µm thick LGAD + PIN diode

B1= 8x8 matrix, 3 mm LGAD A2= 4x4 matrix, 1 mm LGAD B2= 4x4 matrix,

2x2 matrix, 1 mm PiN B4= 2x2 matrix, 3 mm PiN 130 µm thick PIN

12 First sensors productions First 50 µm thick LGAD + PIN diode fabrication at CNM - RD50 collaboration A1= 8x8 matrix, 1 mm LGAD B1= 8x8 matrix, 3 mm LGAD A2= 4x4 matrix, 1 mm LGAD B2= 4x4 matrix, 3 mm LGAD A3= 2x2 matrix, 1 mm LGAD B3= 2x2 matrix, 3 mm LGAD A4= 2x2 matrix, 1 mm PiN B4= 2x2 matrix, 3 mm PiN 130 µm thick PIN diode production in progress at FBK. Delivery in October. 5x5 matrix, 3mm PIN 12

13 Sensors measurements probe-station C-V (depletion voltage, doping profile) I-V (leakage current, breakdown voltage) - Exponential current increase after ~40 V -> multiplication - Low currents (~na) even in multiplication regime - I(150V):I(50V) ~3, consistent with expected gain from simulations - Early breakdown from pad

14 Test beam prototype and assembly process ATLAS HGTD prototype Active Sensor Unit after gluing Gluing and positioning robots LGAD sensor glued on the PCB Test with glass plate on non-cabled PCB Glue thickness=150mm 14

15 Test beam One week of beam last August 120 GeV pions 2 sensors UCSC single pad 1x1 mm 2, 50 μm 1 sensor IN2P3 3x3 mm 2 with 2 readout channels: - readout UCSC - readout LAL Quartz 6x6 mm 2 + SiPM ou 3x3 mm 2 + SiPM 15

16 Test beam: 1x1mm 2 sensor Amplitude and S/N 1. Signal amplitude distribution for a LGAD biased at 150 V. A landau convoluted by a Gaussian fit is superimposed. The amplitude is measured as the maximum of the pulse shape with the pedestal subtracted. 2. Most probable value of the signal amplitude as a function of the bias voltage for two LGAD sensors. As expected, the amplitude increases exponentially with the bias voltage. 3. Signal amplitude over noise as a function of the bias voltage. The noise is computed as the rms of the baseline and does not take into account the increase of the Landau width due the multiplication process in the LGAD. 16

17 Test beam: 1x1mm 2 sensor Time resolution 26 ps at 250V G=40-50 Time resolution a function of bias voltage and the gain for two LGAD sensors -Using the two LGADs and the SiPM, 3 T can be computed (the considered sensor, the reference quartz/sipm and the trigger sensor) - Width of distributions can be used to extract the resolution of each element (assuming no correlation) - Goal is to operate at gain>= 10 in ATLAS 17

18 Module assembly (ASUs + STAVEs) Companies Sensors production Institutes I(V) CERN Construction scenario PCB production Metrology (flatness, thickness) cabling Reception tests : Electrical Metrology Readout test Development of an assembly scenario has started ASU assembly Bonding (glue or wire) Bonding (glue or wire) I(V) Front-end assembly (HV, shaping..) and tests Final process will depend on the chosen options (LGAD/PIN diode bumpbonding/gluing ) Test bench (cosmic, laser, radioactive source) Stave assembly Many steps of assembly and tests need to be improved and carefully developed. ASU + HV supply Electrical + readout tests Test bench Module assembly Aim: a site in France for module assembly/testing ASU + HV supply + cooling Hall de montage LPNHE? Electrical + readout tests Test bench Test beam Detector Integration 18

19 Tests beam In October-November 2016 New PCB 3x3mm LGAD Fast trigger Quartz SiPM from IN2P3 Test of gluing approach Spring and end of 2017 Prototype and tests Sensors: LGAD / PIN diode (FBK production) Assembly connection (bump-bonding / gluing) Simulation and performance Detector optimization e,mu,photons performance Jets signal-pileup rejection HGTD 2017 activities January 2017 Initial Design Review IDR HGTD performance and motivations HGTD detector If successful: Mid-2017 project kick-off meeting December 2017 Technical Design Review TDR - IN2P3 interests : Sensors Connections Assembly Tests : LPNHE Mechanics Integration : LAL Electronics : Omega - LAL 19

Calice activities Assembly done with gluing and positioning robots: automated system developed in the framework of the Calice R&D program for ILD SiW EM calorimeter and for ATLAS high granularity

20 Calice activities Assembly done with gluing and positioning robots: automated system developed in the framework of the Calice R&D program for ILD SiW EM calorimeter and for ATLAS high granularity timing detector Electrical test to control the sensors before gluing, to check the short cuts immediately after gluing, to measure the I(V) curves PCB Metrology using a coordinate measuring machine (tri-dim machine): squaring, parallel edges, size, thickness flatness Technical staff: 1.6 FTE J. David : electronics P. Ghislain : mechanics J-F. Huppert : computing L. Lavergne : instrumentation J-M. Parraud : electronics D. Vincent : mechanics Active Sensor Unit after gluing Gluing and positioning robots ILD calo prototype 7 layers assembled for 2015 test beam ILD prototype 5 layers for 2016 test beam ATLAS R&D in progress One layer prototype built in 2016 and beam tested Glue radiation hardness and thermal effects tests Industrialization of the process considered preliminary contacts with Eolane company 20

21 Conclusion Au LPNHE : HGTD Calice : concept plan de détecteur assemblage Si-PCB HGTD ITK : expertise senseurs designs - caractérisations tests en faisceau Infrastructures : salles blanches / machines à pointes robot de collage Collaboration LPNHE-LAL (HGTD/Calice) LLR (Calice) - Omega L activité HGTD en progression dans ATLAS, à l IN2P3 et au LPNHE Nombre de physiciens participants en augmentation Décision sur la construction de ATLAS-HGTD fin 2017 (TDR) Engagement de l IN2P3 et ATLAS France Contribution du LPNHE Proposition de thèse prévue en 2018 : instrumentation + performances jets Soumission demande ANR 2017 Appel à projet générique aux frontières de la recherche défi des autres savoirs L activité R&D Calice stable à l IN2P3 et au LPNHE : modérée et visible Pas d activité physique et performance ILD-ILC au LPNHE (membre ILD) 2018? : Décision sur la construction de ILC Engagement IN2P3 dans ILD 21

22 Synergies - Mutualisation - Fédération Au LPNHE : HGTD Calice : concept plan de détecteur assemblage Si-PCB HGTD ITK : expertise senseurs designs - caractérisations tests en faisceau Infrastructures : salles blanches / machines à pointes robot de collage Collaboration LPNHE-LAL (HGTD/Calice) LLR (Calice) - Omega L activité HGTD en progression dans ATLAS, à l IN2P3 et au LPNHE Nombre de physiciens participants en augmentation Décision sur la construction de ATLAS-HGTD fin 2017 (TDR) Engagement de l IN2P3 et ATLAS France Contribution du LPNHE Proposition de thèse prévue en 2018 : instrumentation + performances jets Soumission demande ANR 2017 Appel à projet générique aux frontières de la recherche défi des autres savoirs L activité R&D Calice stable à l IN2P3 et au LPNHE : modérée et visible Pas d activité physique et performance ILD-ILC au LPNHE (membre ILD) 2018? : Décision sur la construction de ILC Engagement IN2P3 dans ILD 22

Si-W electromagnetic calorimeter. Contribution in the development of an assembly line for highly granular calorimeters with semiconductor readout

Si-W electromagnetic calorimeter Contribution in the development of an assembly line for highly granular calorimeters with semiconductor readout Gluing robot system PCB Metrology Electrical tests Quality