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The Silicon Tracking System of the CBM experiment at FAIR Anton Lymanets 1,2 for the CBM collaboration DPG Frühjahrstagung 14 - 18 March 2016 Technische.

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Presentation on theme: "The Silicon Tracking System of the CBM experiment at FAIR Anton Lymanets 1,2 for the CBM collaboration DPG Frühjahrstagung 14 - 18 March 2016 Technische."— Presentation transcript:

1 The Silicon Tracking System of the CBM experiment at FAIR Anton Lymanets 1,2 for the CBM collaboration DPG Frühjahrstagung 14 - 18 March 2016 Technische Universität Darmstadt 1 GSI, Darmstadt, Germany 2 Institute for Nuclear Research, National Academy of Sciences, Ukraine

2 DPG Spring Meeting, Darmstadt, 14 Mar 2016A. Lymanets – Silicon Tracking System of the CBM experiment @FAIR 2 Facility for Antiproton and Ion Research GSIFAIR existing facility under construction SIS-100 protons: 30 GeV Au: 11 GeV/nucleon SIS 100

3 DPG Spring Meeting, Darmstadt, 14 Mar 2016A. Lymanets – Silicon Tracking System of the CBM experiment @FAIR QCD phase diagram 3 СВМ nuclear matter formation at high baryon density and temperature models predict 1 st oder phase transition with formation of mixed and exotic phases existence of critical end-point 10 GeV/nucleon

4 DPG Spring Meeting, Darmstadt, 14 Mar 2016A. Lymanets – Silicon Tracking System of the CBM experiment @FAIR Probing the dense fireball 4 p, Λ, Ξ +, Ω +, J/ψΞ -, Ω -, φ ρ → e + e -, μ + μ - π, K, Λ,... resonance decays Au+Au collision at 10.7 GeV/nucleon as simulated in the UrQMD transport code Leptonic and hadronic signals from all stages of nucleus-nucleus collisions Rare probes: multistrange hyperons, low mass vector mesons, charmonium, strange dibaryons, hypernuclei.

5 HADES: p+p, p+A A+A (low mult.) Micro Vertex Detector Dipole magnet Silicon Tracking System Time-of-flight detector Projectile spectator detector Transition radiation detector Muon detector Ring imaging Cherenkov detector Online event selection on a computing farm 5 Vertexing: MVD Tracking: STS, MUCH, TRD, ToF Particle ID: RICH, TRD, ToF Calorimetry: ECAL, PSD CВМ experiment

6 DPG Spring Meeting, Darmstadt, 14 Mar 2016A. Lymanets – Silicon Tracking System of the CBM experiment @FAIR 6 Tracking challenge central nucleus-nucleus collision ~700 charged particles

7 DPG Spring Meeting, Darmstadt, 14 Mar 2016A. Lymanets – Silicon Tracking System of the CBM experiment @FAIR 7 Experimental requirements 10 5 - 10 7 Au+Au collisions per second. secondary vertex determination (σ≈50 µm) track reconstruction from hadron and lepton probes fast and radiation tolerant detectors self-triggering front-end electronics fast data acquisition system + online event selection on a computing farm 4D track reconstruction

8 DPG Spring Meeting, Darmstadt, 14 Mar 2016A. Lymanets – Silicon Tracking System of the CBM experiment @FAIR Online data flow 8 First-level Event Selector

9 DPG Spring Meeting, Darmstadt, 14 Mar 2016A. Lymanets – Silicon Tracking System of the CBM experiment @FAIR Silicon Tracking System 9 8 tracking stations in the magnet aperture double-sided silicon microstrip detectors Acceptance: 2.5˚< < 25˚ Active area: 4 m 2

10 DPG Spring Meeting, Darmstadt, 14 Mar 2016A. Lymanets – Silicon Tracking System of the CBM experiment @FAIR STS integration concept 10 8 tracking stations laddermechanical unit 1 m material budget for station 8 896 detector modules including: 1220 double-sided microstrip sensors ~ 1.8M readout channels ~ 16 000 readout chips ~ 16 000 ultra-thin readout cable stacks X/X 0, %

11 DPG Spring Meeting, Darmstadt, 14 Mar 2016A. Lymanets – Silicon Tracking System of the CBM experiment @FAIR Detector module concept 11 896 modules required 4-5 modules per ladder Modules comprises: sensor ultra-thin mirocables front-end board

12 DPG Spring Meeting, Darmstadt, 14 Mar 2016A. Lymanets – Silicon Tracking System of the CBM experiment @FAIR Silicon microstrip sensors 12 double-sided 1024 channels per side 58 µm pitch 300 µm thick stereo angle 7.5˚(р-side) dimensions: 6×2 cm 2, 6×4 cm 2, 6×6 cm 2, 6×12 cm 2 2 nd metallization to interconnect short corner strips Layout STS5 and 6

13 DPG Spring Meeting, Darmstadt, 14 Mar 2016A. Lymanets – Silicon Tracking System of the CBM experiment @FAIR Silicon microstrip sensors 13 6×12 cm 2 sensor design with readout pads in the middle of the sensor (in production by Hamamatsu) two daisy-chained sensors with 6×6 cm 2 size each

14 DPG Spring Meeting, Darmstadt, 14 Mar 2016A. Lymanets – Silicon Tracking System of the CBM experiment @FAIR Charge collection studies 14 Irradiated sensors: = 2e14 n eq /cm 2 (twice maximum fluence for CBM lifetime) 90 Sr Irradiated sensors show reduction in charge collection efficiency of up to 20% CCE confirmed in a 2 GeV proton beam test at COSY

15 DPG Spring Meeting, Darmstadt, 14 Mar 2016A. Lymanets – Silicon Tracking System of the CBM experiment @FAIR Microcables 15 Material budget per cable stack: 0.228 X 0 (equivalent to 213 µm Si) meshed spacer signal layer: 64 Al lines of 116 µm pitch, 10 µm thick on 14 µm polyimide, lengths up to 55 cm

16 DPG Spring Meeting, Darmstadt, 14 Mar 2016A. Lymanets – Silicon Tracking System of the CBM experiment @FAIR STS-XYTER ASIC 16 STS-XYTER ASIC channels128, polarity +/- noise1000 e – at 30 pF load ADC range16 fC, 5 bit clock160 MHz power< 10 mW/channel timestamp< 5 ns resolution out interface(1..5)×320 Mbit/s LVDS data driven architecture fast branch: time-stamp slow branch: signal digitization double-threshold discrimination: time stamp is vetoed if ADC produced no signal CBM-NET (v1.0 ) GBT (V2.0) LSB veto t s = 30 ns t s = 80 ns r/o logic CSA + PSC SLOW SHAPER FAST SHAPER FAST DISCRIMINATOR 5-BIT FLASH ADC READOUT/TEST CONTROL LOGIC Noise performance with STS-XYTER v1 is ~1800 e − (chip + two daisy-chained sensors with 62 mm strips + 30 cm cable) Significant improvements expected after redesign ENC vs channel number

17 DPG Spring Meeting, Darmstadt, 14 Mar 2016A. Lymanets – Silicon Tracking System of the CBM experiment @FAIR Detector module assembly 17 1. TAB bonding of microcables to ASICs 3. TAB bonding of microcables to sensors on both sides 2. Wire bonding ASICs to front-end boards + bond protection (glob top)

18 DPG Spring Meeting, Darmstadt, 14 Mar 2016A. Lymanets – Silicon Tracking System of the CBM experiment @FAIR Current engineering studies 18 Front-end Electronics Boards Read-out Boards, Power Boards Cooling plate cablingcooling FEB stack 200 W Bi-phase CO 2 cooling system STS electronics total power dissipation: 42 kW cooling plate with integrated channels TRACI XL: 1 kW cooling prototype

19 DPG Spring Meeting, Darmstadt, 14 Mar 2016A. Lymanets – Silicon Tracking System of the CBM experiment @FAIR Radiation environment 19 FLUKA calculation of non-ionizing dose for 10 AGeV Au+Au collisions at SIS100 and the CBM experiment in electron-hadron configuration. Radiation load per typical operation year Non-ionzing dose: 10 13 n eq /cm 2 (worst case) Ionizing dose: <100 kRad Operation conditions: 1 month of running at 10 9 ions/s on a 1% X 0 target n eq /cm 2

20 DPG Spring Meeting, Darmstadt, 14 Mar 2016A. Lymanets – Silicon Tracking System of the CBM experiment @FAIR STS performance simulation 20 Track reconstruction efficiencyMomentum resolution realistic detector model CbmRoot simulation framework Cellular Automaton track finder Kalman Filter track fitting

21 DPG Spring Meeting, Darmstadt, 14 Mar 2016A. Lymanets – Silicon Tracking System of the CBM experiment @FAIR Feasibility studies at SIS-100 5×10 6 central Au+Au events 10 GeV/nucleon, using TOF PID 10 11 central Ni+Ni events 15 GeV/nucleon, using TOF PID 21 Operation scenario: from pA (up to 30 GeV) to AuAu (2–11 GeV/nucleon) systems 4 = 1.7% 4 = 16.5% Tue, 17:45 HK 25.5 Tue, 16:30 HK 24.1

22 DPG Spring Meeting, Darmstadt, 14 Mar 2016A. Lymanets – Silicon Tracking System of the CBM experiment @FAIR Summary 22 STS system concept has been presented Progress with prototyping and engineering Sensor prototypes delivered, radiation hardness is under investigation Current activity is module assembly and system integration Full-size module mockup has been produced System engineering: mechanical structure, mounting of electronics, cabe routing. Close to completion. Feasibility for physics measurements demonstrated Production readiness in 2017

23 DPG Spring Meeting, Darmstadt, 14 Mar 2016A. Lymanets – Silicon Tracking System of the CBM experiment @FAIR Institutions participating in STS 23 Germany Darmstadt, Germany, GSI Helmholtz Center (GSI) Karlsruhe, Germany, Karlsruhe Institute of Technology (KIT) Tübingen, Germany, Eberhard Karls University (EKU) Poland Krakow, Poland, AGH University of Science and Technology (AGH) Krakow, Poland, Jagiellonian University (JU) Warsaw, Poland, Warsaw University of Technology (WUT) Russia Dubna, Russia, Joint Institute for Nuclear Research (JINR) Moscow, Russia, Moscow State University (SINP-MSU) Ukraine Kharkov, Ukraine, LED Technologies of Ukraine Ltd (LTU) * Partner Kiev, Ukraine, Kiev Institute for Nuclear Research (KINR)

24 DPG Spring Meeting, Darmstadt, 14 Mar 2016A. Lymanets – Silicon Tracking System of the CBM experiment @FAIR CBM STS assembly flow 24

25 DPG Spring Meeting, Darmstadt, 14 Mar 2016A. Lymanets – Silicon Tracking System of the CBM experiment @FAIR STS related presentations at DPG 2016 25 Mon, 14:45 HK 8.3 Grigory Kozlov Time-based cluster and hit finding for the STS detector in the CBM experiment at FAIR Mon, 15:00 HK 7.4 Evgeny Lavrik Optical quality assurance procedures for the sensors of CBM STS Detector Mon, 15:15 HK 7.5 Maksym Teklishyn Quality assurance tests of the CBM Silicon Tracking System sensors with an infrared laser Mon, 16:30 HK 14.1 Hanna Malygina The detector response simulation for the CBM Silicon Tracking System as a tool for hit error estimation Group talk Mon, 16:30 HK 15.1 Anton Lymanets The Silicon Tracking System of the CBM Experiment at FAIR Mon, 17:00 HK 15.2 Iaroslav Panasenko, Pavel Larionov Quality assurance of the silicon microstrip sensors for the CBM experiment Tue, 15:00 HK 21.4 Ievgeniia Momot Radiation tolerance of microstrip sensors for the CBM Silicon Tracking System Tue, 18:00 HK 29.7 Adrian Rodriguez Rodriguez The CBM-STS front-end electronics Wed, 18:30 HK 45.9 Carmen Simons, Daniel Soyk, and Robert Visinka The workflow of CBM-STS silicon strip sensor module-assembly Poster Wed, 18:30 HK 45.20 Evgeny Lavrik Bi-Phase CO 2 cooling of the CBM STS detector Poster Wed, 18:30 HK 45.63 Oleg Vasylyev, W. Niebur Mechanical integration of the detector components for the CBM Silicon Tracking System Thu, 17:45 HK 60.6 Jörg Lehnert, David Emschermann The read-out chain of the CBM STS detector

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