The CMS GEM Phase 2 R&D Status & plans 2018-2020 - Cristina Riccardi INFN-PV On behalf of Bari, Bologna, Frascati + G.Bencivenni, G.Morello, M ...

The CMS GEM Phase 2 R&D
 Status & plans 2018-2020
 Cristina Riccardi (INFN-PV)

 On behalf of Bari, Bologna,
Frascati (+ G.Bencivenni, G.Morello, M. Poli Lener),
 Napoli, Pavia

 Riunione Referee, Roma 4/5/2017

 1

Responsabilità INFN-MU-GEM 2017
 Sezione Nome Tipo Responsabilità
BA Anna Colaleo Deputy Muon PM
BA Anna Colaleo Muon Upgrade Coordinator
BA Marcello Maggi Operation & Online System Coordinator
BA Cesare Calabria DPG Coordinator
BA Cesare Calabria Software and Offline Contact for Upgrade
BA Cesare Calabria Muon Phase2 Simulation Coordinator
BA Rosamaria Venditti GEM Upgrade Physics Coordinator
BA Piet Verwilligen GEM Simulation and Reconstruction Coord.
BA Archie Sharma GEM Simulation and Reconstruction Coord.
LNF Luigi Benussi Detector hardware
LNF Stefano Bianco Resource Manager
PV Paolo Vitulo R&D phase 2 Coordinator
PV Ilaria Vai GEM Coordinator of the slice test commissioning
PV Martina Ressegotti GEM commissioning Link Person with TC & Chamber
 Production
PV Cristina Riccardi MUON IB Deputy Chair
BO Lisa Borgonovi GEM GIF++ Co-Coordinator
BO Francesca Cavallo GEM Upgrade Physics Coordinator
BO Paolo Giacomelli GEM IB Deputy Chair
NA Pierluigi Paolucci Muon Resource Manager
NA Pierluigi Paolucci GEM HV system responsability
 2

ME0 in the CMS Muon Endcap

 ME0 detector :
 • will cover the forward
 region 2

Performance study: 4

 ME0 Local reconstruction
Estimate pT from φ displacement
between inner and outer layers (Δφ),
identifying segments from low pT
particles and vetoing them;

 Efficiency tagging of high pt muons vs
 low pt muons requires bending angle  Good φ and η granularity needed
 precision < 1x 10-3
 Signal ME0Segment reco efficiency Bkg. ME0Segment multiplicity
 1.05
 • Background multiplicity in
 signal ME0Segment reconstruction efficiency

 1
 200 PU + neutrons
 0.95

 4 part. 768 strips ~ 2-3 segments per event
 0.9
 6 part. 512 strips
 8 part. 384 strips
 • Efficiency of >95%
 0.85
 12 part. 256 strips

 for pt > 3 GeV
 0.8 8 part. 768 strips

 0.75

 0.7
 5 10 15 20 25
 muon p [GeV]
 T
 4

ME0: going global ..
Efficiency and background studies: use pixel track with most hits associated to the gen-muon
(require pTreco/pTgen w/in 20%). Each pixel track and segment can only be used to construct one
ME0Muon.
Choose φ, η, and Δφ selections between projected pixel track on ME0 surface and
ME0Segment to attain high efficiency for ≥3 GeV muons, taking in account limitation from the
multiple-scattering and ME0 granularity

 Allowing the matching
 window to shrink with
 increasing |p| in order to
 account for less multiple
 scattering will allow to
 further reduce the high pt
 fake rate

Total efficiency from segment reco.+ track matching ~ 98% with high background rejection
(10-4 events pt~10 GeV)
 5

ME0 in the CMS Muon Endcap

 ME0 will be installed in the new nose
 under design
• Cables dimensions , space in the UXC racks for the ME0 LV
 system are under study
• Routing from the ME0 patch panels to the racks to be studied
• Pre-commissioning same as for GE11; Integration in to the
 nose , services connection and validation in P5 are under study 6

ME0 chamber section
 Baseline layout of the ME0 chambers/stuck have been defined
 Chimney
 Cooling

 18 mm 34.2 mm
16.2 mm

 Drift 3.2 mm Stack 7.2 mm RO 3.2 mm GEB ~ 1 mm
 0.2 mm shift
 1.6 mm of clearance

 6

8.8 mm

 1.4 mm

 212.2 mm
 1.6 mm
 214.2 mm
223 mm

 2 mm 1.8 mm

 15 mm
 8

ME0 Stack layout
Baseline layout of the ME0 chambers/stuck have been almost defined
• Structure of 6 layer 568mm
detector.

 8 η-partitions
 and 384 Φ-strips

HV-LV-RO System has been
designed following the GE1/1
schema 9

Updated GEM Performance results

TB @ SPS H8 TB 19Oct-9Nov 2016 For 2017 TDR

 10

ME0 aging studies @ GIF++
New Triple-GEM setup designed & assembled

Goal: collect 240 mC/cm2 of integrated charge needed
to fully validate the triple GEM technology for ME0 (the
test will take about 2 years)

  GE1/1 chamber ( / 2 − 70/30 )
 already collected ~60 / 2 in about 12 months of
 continuous tests to validate GE1/1 and no aging has
 been observed
 Electronics
 box

 11

ME0 discharges probability tests @ CHARM

• A survey of the literature shows quite large uncertainties on the available data
 that come from different GEM configurations and beam configurations.

• New measurements are on-going in CMS @ CHARM facility. The goal is to set
 an upper limit on the discharges probability below 10-11

 Cu,Al

 Active area
 100 cm2
 Iron, concrete shieldings

 test position
 12

ME0 discharges probability tests @ CHARM
 Nov 2016 TB
GEM @ stable condition (3.3 kV_eq ; GAIN : . × ) T_eff= 1.7 h
Integrated Dose : 9.36 Gy
POT total : 8.07 × 1015
1MeV-n equivalent fluence: 2.47 × 1011 −2
Neutron Discharge Prob. Upper limit < . × − 
(no observation of any HV TRIP)
 June 2017 TB
New test beam is in preparation to extend and improve the measurements in
mixed field.
The number of discharging event created by neutron will be evaluated. Rate
of the signal and current will be measured and monitored.
Two week of beam have been requested ~ 15h of continuous run with a
neutron fluence of > 107 cm-2/spill (Energy range 1eV / 5 GeV) 13

ME0 Detector System: R&D Milestones
ME0 Detector Technology R&D: Assessment of TB, test with
performance of small prototypes with neutrons and Jul 11, 2017 neutrons , GIF++
muon beam (HM) (INFN PV, BA, BO)
 Already funded

ME0 Preliminary design and integration requirements Nov 28, 2017
 Preliminary
assessment complete (HM) version of the
 mockup ongoing
 (INFN NA)
 Already funded
ME0 Chamber Prototype Mechanical Engineering Dec 18, 2018
Design Completed (HM)

 VFAT3 adaptation
ME0 All Prototype FE & DAQ/Backend Electronics Aug 21, 2020 (INFN BA,PV)
Ready for the ME0 Demonstrator (HM)

ME0 R&D: Start of the Demonstrator Module
Assembly with Prototype Electronics (HM) Oct 7, 2020 14

ME0 Detector System: Production
 Milestones
ME0 L1 trigger/ readout system prototypes tested and validated (HM) Apr 27, 2021,
ME0 ESR (EM) Apr 27, 2021
ME0 EDR (EM) Oct 28, 2021
ME0: Module Production Starts (HM) Feb 25, 2022
ME0 GEB Production, Testing & Certification Complete Jan 18, 2022

 Production phase
ME0 OH Production, Testing & Certification Complete Jan 18, 2022
ME0 Front-End Chips & Hybrids Production, Testing & Certification Complete (LM) Mar 29, 2022
ME0 On-Chamber Electronics production completed and validated (HM) Mar 29, 2022
ME0 Stack Assembly Starts (HM) Jun 3, 2022
ME0 Off-Chamber Electronics Components Production, Testing & Certification Complete
(HM) Jun 8, 2023
ME0: Disk 1 Stacks Assembly, Testing & Cerification Complete May 4, 2023
ME0: Module Production, Testing & Certification Complete (HM) Jan 11, 2024
ME0: Disk 2 Stacks Assembly, Testing & Cerification Complete Mar 7, 2024
ME0 Detectors Ready for Insertion in HGC at bd 904 (LM) Mar 7, 2024
ME0 Detector Ready for Insertion into HGC (HM) Mar 7, 2024
ME0 DAQ/Electronics System Initial Integration Complete, Ready for Deployment (HM) Mar 14, 2024
ME0 DAQ/Electronics System Full Integration Complete, Ready for Operations (HM) Dec 19, 2024
ME0 Detector Ready for Installation (RM) Dec 12, 2024
ME0 Installation date from TC (EM) Aug 1, 2025 15

Piani e richieste INFN 2018-2020
 per ME0
Entro il 2017: Produzione mockup (versione preliminare) di uno stack di
ME0 (INFN NA) e produzione di un prototipo di camera full size (CERN).
Contributo per R&D principalmente da: CERN,INFN,USA. Per la produzione
saranno coinvolti Belgio, Corea, Pakistan, India, Cina.

 INFN contribution
 2018 2019-2020
 ME0 Station R&D

 Studio Produzione prototipi meccanici 4kE 4kE
 meccanica per studi della meccanica dello (versione 1) (versione 2)
 dello stack stack ME0 (NA)

 Produzione e Produzione di 2 moduli per stack 16kE 16kE
 test di moduli (BA, PV) (2 moduli) (2 moduli)
 dello stack
 ME0 Test su fascio e test con neutroni 10kE 5kE
 (BA,PV,BO)
 Scheda HV per test, filtri e cavi 10kE
 (NA)
 Total 40kE 25kE 16

Ge21 Detector System: R&D Milestones

GE2/1 R&D: Full Size Chamber Prototype with Partially Instrumented
Readout Tested and Performance Validated (HM) May 1, 2018

GE2/1 R&D: Choice taken on chamber technology solutions (HM) May 8, 2018

GE2/1 Prototype electronics ready (LM) Jul 9, 2018

GE2/1 ready to start services production (HM) Aug 3, 2018

GE2/1 R&D: Final Demonstrator: Ready for Module Assembly with
Prototype Electronics Oct 9, 2018

GE2/1 R&D: Start Assembly of the GE2/1 Demonstrator with Jan 30, 2019
Prototype On-Chamber Electronics

GE2/1 R&D: Final Demonstrator Completed and Validated (LM) Mar 12, 2019

 17

GE21 Detector System: Production
 Milestones
GE2/1 EDR (EM) Mar 12, 2019
GE2/1 Services installation done (HM) May 19, 2019
GE2/1 Module Production Starts (HM) Jul 31, 2019
GE2/1 R&D: xTCA Backend Final Prototype Manufactured and Tested Dec 9, 2019
GE2/1 L1 and readout prototype electronics completed and validated (HM) Dec 12, 2019
GE2/1 L1 and readout pre-production electronics completed and validated (HM) Dec 12, 2019
GE2/1 All Prototype FE & DAQ/Backend Electronics Ready Dec 12, 2019
GE2/1 ESR (EM) Dec 12, 2019
GE2/1 LV and HV Power Supply pre-production validated (LM) Jul 10, 2020
GE2/1 On-Chamber Electronics produced and tested, Ready for Installation on Mar 4, 2021
Chambers (HM)
GE2/1 Chamber Assembly Starts (HM) Mar 5, 2021
GE2/1 Back-end Electronics production completed and validated (HM) Apr 29, 2021
GE2/1: Chambers for Disk 1 Produced, Tested and Certified, ready for installation Sep 16, 2021
GE2/1 Detector Ready for Installation disk 1 (HM) Sep 16, 2021
GE2/1 All Module Production and Testing Complete (HM) Feb 8, 2022
GE2/1 Installation date from TC Endcap 1 (EM) Mar 16, 2022
GE2/1: Chambers for disk 2 produced, tested and certified, ready for installation Apr 5, 2022
GE2/1 Detector Ready for Installation disk 2 (HM) Apr 5, 2022
GE2/1 Installation date from TC Endcap 2 (EM) Mar 22, 2023
 18

Piani e richieste INFN 2018-2020 per
 GE21

 INFN Contribution
 2018 2019 2020
GE21 Station R&D Pre-production Production
Chamber assembly 37 KE 78 KE 134 KE (7 Ch)
 (partecipazione per (4Ch )
 dimostratore finale)

Test Beam 5KE

Electronics (FE) 93 KE

Power system 10kE 20kE 369 KE

Total 52kE 98 kE 596 KE

Partecipazione INFN
• R&D: meccanica & HV ( NA), partecipazione a dimostratore finale & test (LNF, BO)
• Production: see slide 21
 19

GEM Anagrafica : FTE 2017  38,4 FTE
 Altro
 (MPGD_NEXT,
Sezione Tot GE1/1 RD_Fase2 AIDA FATIMA,…)

Bari 7,45 2,3 0,95 4,2

Bologna 1,2 1,8 0,1 0,5

Frascati 2,1 4,1 0,2 0

Napoli 5,6 2,4 0 0

Pavia 3,3 2,2 0 0

 Total 19,65 12,8 1,25 4,7 20
 20

GEM Phase2: Interests & INFN core cost
 for GE21 & ME0
 Production & test (BA,LNF, BO,PV)
 INFN
Estimated CORE cost TP  2 siti pronti ( BA e LNF) pronti da
 CORE
 costruzione di GE11
GE21 + ME0 Stations MCHF MCHF  consistente impegno per R&D

Chamber assembly 2,9 0,81 FE Electronics ( BA,PV)
  Esperienza di BARI su VFAT3
Electronics (DAQ/BE) 2,3 (partecipazione in chip design,
 responsabilità per Control Bias
Electronics (FE) 1,0 0,21 Monitoring and slow control
 circuitry)
Power system 1,4 0,73  Contributo PV per sviluppo chip
 ME0
Services 0,7
 HV system & integration (NA)
Installation 0,3  disegno e produzione in
 collaborazione con CAEN di
Total 8,6 1,75 Multichannel board per GE11
 21

backup

 22

Fluence/POT for the different types of particles Particle Fluence
 type [cm-2/Spill]
POT= protons on target (3.84 x 1011) Neutrons 8.3 × 107

 High- 1.31 × 106
 Energy
 Hadrons
 e+/e- 6.29 × 105
 Muons 2.29 × 104
 Pions 3.97 × 104
 Protons 4.80 × 104
 Mixed radiation field
 dominated by neutrons

 23

ME0 discharges probability tests @ CHARM

• In the case of no Discharge Event (DE) observed in ∆ . Upper limit for Zero events would be n=3 (
 «Rule of three» : 0, = − ≥ 0.05 ) @ 95% CL

• Given the neutron hit rate h and the detector area A  probability < 3/(h ⋅A⋅∆t) @ 95% CL

• Considering at HL-LHC Lmax = 5x1034 cm-2s-1 and the integrated luminosity delivered Lint = 3000 fb-1,
 the equivalent non-stop run time (Teq) at Lmax is Teq = Lint / Lmax = 1.9 years.
 The goal is to set an upper limit on the discharges probability below 10-11

 Cu,Al

 Active area
 100 cm2
 Iron, concrete shieldings

 test position 24