Progetto CMS RPC: Preventivi 2017 Davide Piccolo On behalf of Bari, Frascati, Napoli, Pavia Roma 09/09/16

CMS RPC system RPC present system Covers 0 < |h | < 1.6 1056 chambers 110,000 electronic channels and 3500 m2 of active area Double gaps gas chamber: 2 mm gas width Bakelite bulk resistivity: r = 2 - 5 x 1010 cm Strip width: 1 − 4 cm. Gas mixture: C2H2F4 + isoC4H10 + SF6 (40% of H) 95.2% 4.5% 0.3% Operated in avalanche mode 4th station installed in 2013-14 RPC upgrade: Installation of improved RPC in the RE4-1 and RE3-1 stations 72 chambers in total (1/2 of RE4-2/3 project) Roma 09/09/16

Roma 09/09/16

CMS RPC: 2016 operations RPC successfully participated in all LHC collision Runs All lumi sections (LS) have been marked as good (a part for LS during first two RPC calibration runs) No down time assigned to RPCs Fraction of active channels: 98.3% RPC trigger: Overlap region: RPC hits included and triggering Barrel region: RPC hits included in the firmware RPC BX used RPC only trigger under validation Leaks under observation: 43 leaky chambers (intervention during EYTS are man power expansive) Roma 09/09/16

CMS RPC: Efficiency Roma 09/09/16

Full agreement with expectations CMS RPC: Performance Full agreement with expectations Roma 09/09/16

CMS RPC background New shielding Reduced rate: mainly in endcap Roma 09/09/16

CMS RPC: HV calibration 2016 Roma 09/09/16

CMS RPC: milestones 2016: Funzionamento del sistema RPC a 13 TeV con prestazioni paragonabili a 8 TeV 2017: Presa dati stabile del sistema RPC alla luminosità' nominale di LHC (31-12-2017) 100 % Roma 09/09/16

Timeline for phase2 2 years for the final design 2.5 years for preproduction 2 years for service installation 3 years for production and installation 10 Roma 09/09/16

riunione CMS Italia - 6/07/16 HPL vs glass Low-resistivity glass: material and supplier (Tsinghua U.) new to CMS; tunable resistivity,1010Ωcm (or lower) achieved; no oiling procedure needed; no humidification of gas mixture; limited sizes only HPL/bakelite: material and supplier (Puricelli, General Tecnica, INFN) known to CMS; present system 1-5x1010Ωcm, but 0.5-1x1010Ωcm may be achievable; typical CMS sizes are no problem 1.6mm double-gap HPL RPC, irradiated @ GIF++ max. γ rate at the test position ~ 1.5 kHz cm-2 150 GeV π,μ beam @ SPS, H2 (Jun. 2015) Rate capability established with small beam spot, for low-resist. glass chambers (single-gap !) Rate capability established > 1.5 kHz cm-2, for both HPL and low resist. glass RPC riunione CMS Italia - 6/07/16

Front-end electronics Present CMS RPC endcap front-end board has important draw-backs: it’s old in terms of design and components, difficult to reproduce 32 channels only in present layout (4x 8ch. ASIC) connection to strips via coaxial cables noisier compared to newer SiGe technology LVDS out LVDS out LV, I2C strips strips Baseline solution includes new front-end electronics, lower noise level, higher sensitivity, higher granularity HARDROC2 chip under study: 3 shapers 3 discriminators low power consumption Possibility to include TDC R&D ATLAS_CMS in corso anche nell’INFN Lyon group riunione CMS Italia - 6/07/16

Consolidation of present system Link board system produced in 2006 Optical signal from GOL 1.6 Gbps (slow for modern receivers and FPGA) Big number of optical links CB and LB firmware frozen since 4 years No firmware developers Poland group not interested to maintain it for Phase 2 LB issue Plans to replace it in part or totally LB historically included in trigger project Different options under scrutiny Roma 09/09/16

ANAGRAFICA RPC CMS: 2017 Autori RPC CMS: 16 FTE totali: 15,5 Sezione Autori CMS (RPC) RPC (phase1) RD_Fase2 AIDA 1.7.2016 as June 2016 FTE   Bari 3 1,7 1,3 Frascati 2,1 1 Napoli 7 6,9 0,7 Pavia 0,9  TOTALE 16  11,6  3,9 Autori RPC CMS: 16 FTE totali: 15,5 Roma 09/09/16

RESPONSABILITA’ RPC CMS: 2017 Responsabilità RPC 2017   Sezione Nome Tipo Responsabilità m.u. BA Gabriella Pugliese RPC Subsystem Manager 6 LV1 LNF Davide Piccolo Responsabile Studi eco-gas 2 LV3 Stefano Bianco Responsabile GGM PV Na Salvatore Buontempo Mu Technical Coodinator + RPC tech coordinator 5 LV1 + LV2 Pierluigi Paolucci power supply RPC Orso Iorio DB coordinator Filip Tyssen DAQ RPC Roma 09/09/16

RICHIESTE MISSIONI RPC CMS: 2017 Sezione Autori RPC RD_Fase2 AIDA MI metab 1KE/FTE ME TOT MI+ME CMS (phase1) (RPC)   1.7.2016 as June 2017 FTE metab respons EPR RD_fase2 TOT ME K€/m.u. TOT miss m.u. K€ 1 m.u./FTE 1.5 mu /autore (phys+tech) Bari 3 1,7 1,3 6 4,5 1 2 16,5 4,05 66,825 69,825 Frascati 2,1 3,1 4 0,5 13,1 3,7 48,47 51,57 Napoli 6,8 0,7 7,5 11 9 33,5 3,95 132,325 139,825 Pavia 0,9 1,8 7,3 27,01 28,81 TOTALE 16 11,5 3,9 15,4 21 22.5 7 70,4 274,63 290,03 CMS: Richieste tecnici 3,5 mu (maintenance: HV-GAS-Elettr.) e fisici RPC 1 mu (sensori) Fase2: Richieste tecnici 2,5 mu (GIF++ - mockup) e fisici RPC 4,5 mu (GIF++ - mockup) Roma 09/09/16

RICHIESTE CONSUMI RPC CMS: 2017 Sezione Autori CMS (RPC) RPC (phase1) RD_Fase2 AIDA CONSUMO 1.7.2016 as June 2016 FTE metabolismo auto consumi M&OB SJ Tot consumi   1.5 K€ /FTE Bari 3 1,5 1,3 4,2 Frascati 2,1 1 4,65 4 65 73,65 Napoli 7 6,9 0,7 11,4 18,4 Pavia 0,9 2,7 Total 16 3,9 98,95 A parte metabolismo e M&OB Richiesta 3 Keuro su Napoli per connettori HV Juppiter Roma 09/09/16