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Roma, Riunione CSN1: Maggio 2004F. Bedeschi, INFN-Pisa 1/13 CDF Stato del Tevatron Stato del rivelatore Upgrades in corso Richieste finanziarie (MOF) Stato analisi dati G. Punzi Stato computing S. Belforte OUTLINE Riunione CSN1 Roma: 17 Maggio, 2004 Franco Bedeschi INFN-Pisa
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Roma, Riunione CSN1: Maggio 2004F. Bedeschi, INFN-Pisa 2/13 Extended Tev goals Luminosity plan 2002 Goals 2002/03 accomplished link link Goals 2004 ~ 300 pb -1 Very likely Tevatron is performing very well P-bars injected from recycler! YearBase plan luminosity/yr (fb -1 ) Design plan Luminosity/yr (fb -1 ) FY020.08 FY030.200.22 FY040.310.38 FY050.390.67 FY060.500.89 FY070.631.53 FY081.142.37 FY091.162.42 Total4.418.56 Base plan ~ no recycler link L max = 2 x 10 32
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Roma, Riunione CSN1: Maggio 2004F. Bedeschi, INFN-Pisa 3/13 Design and Base Projections We are here
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Roma, Riunione CSN1: Maggio 2004F. Bedeschi, INFN-Pisa 4/13 TeV Luminosity (current situation) Peak luminosity Best 7.0 x10 31 !!! Delivered/on tape 500/400 pb -1 /~100 bad due to COT Analyses use data till Feb. 04 ~ 240 pb -1 > 2 x Run 1 Delivered On tape Integrated Luminosity Initial Instantaneous Luminosity 7 x 10 31 Luminosity vs. time
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Roma, Riunione CSN1: Maggio 2004F. Bedeschi, INFN-Pisa 5/13 Startup luminosity Current delivered luminosity is exceeding design goals 2002 2003 2004 Design Base
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Roma, Riunione CSN1: Maggio 2004F. Bedeschi, INFN-Pisa 6/13 COT problem COT is experiencing an unexpected gain loss ~ 20%/yr Chamber is currently operating at strongly reduced gain to prevent further damage New wire SL 2 wire now
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Roma, Riunione CSN1: Maggio 2004F. Bedeschi, INFN-Pisa 7/13 COT problem Chamber expected to be very radiation hard Expected currents on SL1 is 4.5 mA/wire @ L = 2x10 32 From 0.15 Coul/cm (2 fb -1 ) to 0.60 Coul/cm (8 fb -1 ) Predict < 1% gain loss at 1 Coul/cm no problem …..
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Roma, Riunione CSN1: Maggio 2004F. Bedeschi, INFN-Pisa 8/13 COT problem Observations and diagnosis: Gain loss has z and phi dependence Reversing gas flow reverses pattern of damage Damage most likely caused by insufficient gas flow Actions taken: Implement gas re-circulation system (80% re-circulated) Old flow 20 SCF/hr 40 200 testing effectiveness now Can push as high as 1000 SCF/hr this summer Back up plans: Increase operating temperature 72 82 F Change gas Ar-CO 2 (or even CF 4 ?)
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Roma, Riunione CSN1: Maggio 2004F. Bedeschi, INFN-Pisa 9/13 Trigger status Continuously update to deal with higher luminosity December 2003: 10kHz, 300Hz, 55Hz had ~25% deadtime L1: improve prescales and XFT L2: cut on muons, faster code, SVT fast abort L3: 64 more CPU’s, faster code Now: L1/L2/L3 can run at 20kHz, 350Hz, 60Hz with low dead time, but… SVT is dropped beyond 6x10 31 ….. Faster SVX readout Road Warrior (mostly Italian work) to remove ghost track before fitters SVT upgrade
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Roma, Riunione CSN1: Maggio 2004F. Bedeschi, INFN-Pisa 10/13 Status CPR M&S: PO’s completed ~ All material at Fermilab Module production started 2 modules finished Italian techs at work HV work in progress Cables and patch panels Control and monitor software Timeline: Installation starts September 04 Module construction ends in July
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Roma, Riunione CSN1: Maggio 2004F. Bedeschi, INFN-Pisa 11/13 Status CPR Performance of first two modules as expected Production at full speed 16 pe/MIP after full optical path Source scan
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Roma, Riunione CSN1: Maggio 2004F. Bedeschi, INFN-Pisa 12/13 Status SVT upgrade Prototype AM Chip design ready for production Bid approval by INFN delayed Hope to get into end of June slot at UMC Chips back in 3 mo Plan for production in early 2005 With real design less patterns/chip more chips needed Additional cost is 40 k€ on FY2005 Long range plans of SVT upgrade being made at CDF Even more chips may be needed, but with additional out side contributions
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Roma, Riunione CSN1: Maggio 2004F. Bedeschi, INFN-Pisa 13/13 MOF History: 250 k€ requested at September 2003 CSN1 meeting Referees favorable, but only 150 k€ assigned INFN rep. promised 300 k$ = 250 k€ at IFC meeting in October 2003 150 k€ already spent and accounted for Plan for use of additional 100 k€ already discussed with Fermilab Mostly help on unexpected COT costs Request: 100 k€ now to complete FY2004 running cost contributions Contributions to computing separate Discussed in Belforte’s presentation
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Roma, Riunione CSN1: Maggio 2004F. Bedeschi, INFN-Pisa 14/13
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Roma, Riunione CSN1: Maggio 2004F. Bedeschi, INFN-Pisa 15/13 Tev 2003 Luminosity Goals for 2003 Base goals: 200 pb -1 in FY 2003 10 pb -1 /wk end of 2003 5.4x10 31 typical Stretch goals: 320 pb -1 in FY 2003 15 pb -1 /wk end of 2003 7.6x10 31 typical (~max achievable without Recycler) Integrated luminosity goal achieved, but … Half of shutdown in FY04 Avg. lum. lower than predicted FY04: Double data set ~150 pb -1 As of 5/6/03 ~250 pb -1 As of 9/3/03 back
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Roma, Riunione CSN1: Maggio 2004F. Bedeschi, INFN-Pisa 16/13 Tev goals beyond 2003 Fermilab long range plan (M.Witherell P5 presentation – March 26, 2003) back
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Roma, Riunione CSN1: Maggio 2004F. Bedeschi, INFN-Pisa 17/13 Silicon status ~ 92% operational ~85% has low readout error rate 92% Operational ladders Error rate < 1% Jan 04Jun 03 Jan 02 Jun 02
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Roma, Riunione CSN1: Maggio 2004F. Bedeschi, INFN-Pisa 18/13 CDF Data Acquisition System Level 1 trigger pipelined and “deadtimeless” fully synchronous designed for 132ns operation on L1A, write data to 1 of 4 local L2 buffers Level 2 trigger asynchronous L1 + supplemental info Level 3 trigger full detector readout PC farm runs reconstruction output to mass storage
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Roma, Riunione CSN1: Maggio 2004F. Bedeschi, INFN-Pisa 19/13 CDF Run II Trigger System Level 1 trigger tracking calorimeter: jets & electrons, MET muons Level 2 trigger L1 information (tracks, e, ) calorimeter shower max silicon information algorithms run in L2 processor Level 3 trigger full detector readout “offline” processing Detector Readout path
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Roma, Riunione CSN1: Maggio 2004F. Bedeschi, INFN-Pisa 20/13 Summary of Run IIb specifications Level 1 Accept rate: >25kHz (spec 50kHz) deadtimeless Level 2 Accept rate: 750 Hz bursts to 1.1kHz L2 processing deadtime < 5% readout deadtime (on L2A) < 5% Level 3 Accept rate: 85Hz Event builder rate: 400MB/s Output data rate: 40MB/s Reminder: trigger & bandwidth rates estimated based upon Run IIa, significant underestimate possible (assumes linear growth in fake contribution)
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Roma, Riunione CSN1: Maggio 2004F. Bedeschi, INFN-Pisa 21/13 DAQ/Trigger Summary These are the pieces of the CDF Front-end, Trigger and Data Acquisition system we need to upgrade/update to carry out a high p T physics program TDC replacement XFT upgrade SVT upgrade L2 replacement Event builder/L3 upgrade The remainder of the Run IIa CDF front-end/trigger/DAQ system will perform well throughout Run IIb
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