20/10/2008A. Alici - ALICE TOF Festival1 Electronics and data acquisition of the ALICE TOF detector A.Alici University and INFN, Bologna

20/10/2008A. Alici - ALICE TOF Festival2 Electronics MRPC VME Crates RO electronics) Twisted pair flat cables Amphenol skewclear cables

20/10/2008A. Alici - ALICE TOF Festival3 From MRPC VHDCI connector for signal cables to TOF crates NINO ASIC chips Front end card NINO ASIC chip: fast amplifier and discriminator very low power consuption 15 ps time resolution

20/10/2008A. Alici - ALICE TOF Festival4 Crates with readout electronics DRM Data Readout Module: 1 per crate LTM Local Trigger Module: 1 per crate CPDM Clock and Pulser Distributor Module: 1 every 2 crates TRM TDC Readout Module: 9 or 10 per crate MRPC FE cards VME Crates (RO electronics) FEA LV monitor FEA threshold set and monitor FEAC temperature monitor FEA OR signals to CTTM LHC clock distribution Pulser to MRPC

20/10/2008A. Alici - ALICE TOF Festival5 TDC Readout Module piggy-back card (3 HPTDC chips) Each TRM boards houses 30 HPTDC ASIC and 10 temperature sensors on 10 piggy back boards. multi-hit and multi events capability 240 channel with 25 ps resolution

20/10/2008A. Alici - ALICE TOF Festival6 Data Readout Module (DRM) The DRM provides the VME Master duties in the crate (data readout from TRM boards) and performs other functions, such as: data transmission and communication with the ALICE DAQ system through Data Detector Link (DDL) reception and computing of trigger signals through Timing Trigger Control receiver (TTCrx) VME bus access through a slow control optical link remote programming of FPGA on VME boards in the crate

20/10/2008A. Alici - ALICE TOF Festival7 Electronics QA tests Pulser test of SM searching for “dead” and noisy channels: total amount less than 0.5% over the whole TOF ( channels)

20/10/2008A. Alici - ALICE TOF Festival8 TOF trigger The MRPC detector provides very fast signals with relatively low noise  TOF can be used as L0 trigger. Several trigger topology selected during cosmics run. The TOF based trigger is a very usefull tool for TOF and other detector commissioning. TOFforTRDBACKtoBACK

20/10/2008A. Alici - ALICE TOF Festival9 TOF trigger TRD simulated charge spectrum TRD real spectrum without TOF pretrigger With TOF pretrigger x100 (ns)

20/10/2008A. Alici - ALICE TOF Festival10 HMPID triggered by TOF Without TOF trigger With TOF trigger TOFforHMPID charge (ADC)

20/10/2008A. Alici - ALICE TOF Festival11 TOF DCS TOF Finite State Machine based DCS completed and working HV, LV monitor and settings FE and RO electronics temperature monitor Cooling and gas service monitor and settings automatic procedures alarm handling

20/10/2008A. Alici - ALICE TOF Festival12 TOF DCS VME boards temperatures TOF SM panel