February 12 th, 2004 Heidelberg TPC Meeting J.B. TPC SECTOR TEST at T10 May 3 rd – June 2 nd MOTIVATION REQUIREMENTS STATUS OF SYSTEM TIME SCHEDULE CONCLUSIONS

February 12 th, 2004 Heidelberg TPC Meeting J.B. MOTIVATION 1 CALIBRATION OF TPC (IROC MODULE) -- DEFINED BEAM ENERGY --- electronics gain (x) chamber gain --- dE/dX studies TRACKING WITH EXTERNAL REFERENCE DEFINED PARTICLE ANGLE

February 12 th, 2004 Heidelberg TPC Meeting J.B. MOTIVATION 2 FULL OPERATION OF COMPLETE INNER SECTOR -- ALL FE CARDS (final cards) -- RCU CARD (full functionality) -- ISEG (HV) -- WIENER (LV) -- FINAL GATING GRID PULSER

February 12 th, 2004 Heidelberg TPC Meeting J.B. REQUIREMENTS (BEAM/PARTICLES/GEOMETRY) BEAM ENERGY VARIATION BEAM INTENSITY VARIATION PARTICLE SEPARATION TRACK ANGLE VARIATON EXTERNAL TRACKING TRIGGER

February 12 th, 2004 Heidelberg TPC Meeting J.B. REQUIREMENTS (ELECTRONICS/RCU) ALL FE ELECTRONIC CHANNELS 43 FE Cards RCU CARD -> 2 RCU cards with full functionality TRIGGER LOGIC -> NIM TO LVCMOS

February 12 th, 2004 Heidelberg TPC Meeting J.B. REQUIREMENTS (DAQ/DDL) VISUALIZATION -> ONLINE MONITOR COMBINATION OF THE MICROSTRIP-T AND TPC-DAQ -> EVENT BY EVENT MATCHING : TPC MICROSTRIP DDL -> 2 DDL + DATE -> Download -- MAX DATA FLOW/EVENT (WITHOUT 0-SUP.) 3.1 Mbyte/event -> (1.9 Mbyte/event / 1.2 Mbyte/event) max speed : 200 Mbytes/sec  100 events/sec CONNECTION TO CASTOR

February 12 th, 2004 Heidelberg TPC Meeting J.B. REQUIREMENTS (DATA BASE/STORAGE) 136 RUNS # 40 ANODE VOLTAGE – DRIFT # 48 (r-phi/z) - Drift # 48 BEAM ENERGY – DRIFT  5000 EVENTS PER RUN  680 k EVENTS TOTAL  ~ 2 Tbyte

February 12 th, 2004 Heidelberg TPC Meeting J.B. REQUIREMENTS (DCS) DCS (NOT WITH ECS) -- OPERATION OF ISEG/WIENER -- VOLTAGE/CURRENT/ /TEMP/PRESSURE MONITORING AND ARCHIVING

February 12 th, 2004 Heidelberg TPC Meeting J.B. REQUIREMENTS (READOUT/FIELD CAGE/GAS) WORKING READOUT CHAMBER AT NOMINAL VOLTAGE (Ne/CO2/N2) (85.7/9.5/4.8) DRIFT FIELD OF 400 V/cm OXYGEN < 10 ppm STABLE GAS MIX (NE/CO2/N2) (85.7/9.5/4.8) TEMP / PRESSURE

February 12 th, 2004 Heidelberg TPC Meeting J.B. REQUIREMENTS (T10 BEAM LINE) MECHANIC SUPPORT (phi-angle and z-angle variation) MICROSTRIP TELESCOPE TRIGGER SYSTEM (SCINT.C)

February 12 th, 2004 Heidelberg TPC Meeting J.B. REQUIREMENT (MANPOWER/TEAMS) CHAMBER/FIELD- CAGE/GAS/MICROSTRIP/BEAM /SURV. FE-ELECTRONICS DCS RCU DAQ-DDL SOFTWARE

February 12 th, 2004 Heidelberg TPC Meeting J.B. STATUS (READOUT/FIELD CAGE/ GAS SYSTEM) READOUT -- operational FIELD CAGE -- He-Leak detection  leak drift/CO2 volume -- Field optimization  in progress (40 k events) GAS SYSTEM -- He Leak detection  improvement -- pump circuit changed  permanent circulation -- pump service kit ordered /spare pump

February 12 th, 2004 Heidelberg TPC Meeting J.B. STATUS (FE ELCTRONIC) FE ELECTRONIC CARDS --- complete COOLING PLATES arrived at CERN (43 needed) COOLING SYSTEM --- manifold under work CAPTON CABLE available / 200 ordered CONNECTION TO RCU --- TO BE TESTED

February 12 th, 2004 Heidelberg TPC Meeting J.B. STATUS (T10 BEAM AREA) WORK STARTS BY FEBRUARY 17 th NOT CLEAR WHICH SUPPORT TABLE WILL BE USED

February 12 th, 2004 Heidelberg TPC Meeting J.B. STATUS RCU AT PRESENT WE TAKE DATA WITH “OLD” RCU CARD AND 8 FE CARDS THE FINAL RCU WAS NOT YET TESTED !

February 12 th, 2004 Heidelberg TPC Meeting J.B. SCHEDULE (BEAM AREA/ BEAM TIME) BEAM AREA WILL BE CLOSED BY MAY 3 rd FROM MAY 3 rd – MAY 18 th (no M- STRIP TELESCOPE) FROM MAY 19 th – JUNE 2 nd (M-STRIP TELESCOPE AVAILABLE)

February 12 th, 2004 Heidelberg TPC Meeting J.B. SCHEDULE AND DEADLINES (RCU/DDL/TRIGGER) ARRIVAL OF FINAL(*) RCU CARD AT CERN BY MARCH 15 th (2004) STABLE OPERATION OF COMPLETE SYSTEM AT T10 BY APRIL 15 th (2004)

February 12 th, 2004 Heidelberg TPC Meeting J.B. SCHEDULE (installation) Installation of FE electronics Installation of TPC / FIELD CAGE IN T10

February 12 th, 2004 Heidelberg TPC Meeting J.B. CONCLUSIONS (1) WE ACCUMULATED SO FAR WITH 8 FE CARDS 40k EVENTS -- HIGH MULITPLICITY, SINGLE TRACKS (Summary by Marek and Marian)  BEAM TEST IS UNIQUE CHANCE TO COMPLETE THE TEST PROGRAM

February 12 th, 2004 Heidelberg TPC Meeting J.B. CONCLUSIONS (2) ONLY THE COMBINATION OF ALL FE CARDS WITH THE FINAL RCU (ALL FUNCTIONALITY) WILL ALLOW US : -- TO PERFORM THE COMPLETE CALIBRATION PROGRAM -- TO TEST THE FUNCTIONALITY UNDER “REALISTIC CONDITIONS”

February 12 th, 2004 Heidelberg TPC Meeting J.B. CONCLUSIONS (3) (risk/performance) THE FIELD CAGE AND GAS SYSTEM ARE OLD ! (RISK OF DAMAGE DURING TRANSPORT) THE MATERIAL BUDGET OF THE FIELD CAGE IS NOT AS IN THE FINAL ALICE EXPERIMENT !

February 12 th, 2004 Heidelberg TPC Meeting J.B. CONCLUSIONS (4) (MOUNTING OF FE CARDS) FINAL MOUNTING OF FE CARDS CAN NOT BE TESTED DUE TO DIFFERENT SUPPORT STRUCTURE

February 12 th, 2004 Heidelberg TPC Meeting J.B. SUMMARY PARAMETER BEAM ENERGY (0.5,..,7 GeV/c) BEAM STRUCTURE PARTICLE COMPOSITION (p,pi+/pi-,e) RESOLUTION OF SILICON (~ 3 um) INTERACTION MATERIAL (5mm Al)