ALICE Calibration Requirements
ITS SDD
Par # Parameter Data format/size per channel Data size (Total) Update freq Source Confirmed  Run type / Trigger type # of required events/sampling rate Processing level: sub-event or event Results: FEE/Archive Accessible by offline Calib. Procedure in AliRoot (see Note 3) use case #
      on FES in OCDB reference                    
1 Low and HighThresholds for CARLOS 2x8 bits/sensor 0 5.08E+02 0 Run DAQ (JTAG - It can be written to a run header) yes Standard runs  1   OCDB Yes   No 5 / Note 1
2 Baselines  9 bits/each PASCAL + 6 bits/anode on AMBRA  0 9.98E+04 0 Run DAQ (JTAG - It can be written to a run header) yes Standard runs  1   Note 1 Yes   No (Base classes) 5 / Note 1
3 Noisy anodes (masked) 512 bitmap: 512 bits/sensor 1.64E+04 1.64E+04 0   DAQ (JTAG - It can be written to a run header) yes Standard runs  1   Note 1 Yes   No 5 / Note 1
4 Noise amplitude 4 bits/anode  6.50E+04 6.50E+04 0 Run DAQ (data without 0 suppression - dedicated runs) yes Dedicated run w/o 0 supp. ~1000 sub-event OCDB Yes No (Base classes) 1
5 Pedestals 8 bit/anode 1.30E+05 1.30E+05 0   DAQ (data without 0 suppression - dedicated runs) yes Dedicated run w/o 0 supp. ~1000 sub-event OCDB Yes     1
6 Gains 8 bits/anode  1.30E+05 1.30E+05 0 Run DAQ (dedicated runs with S/W triggers) yes Dedicated runs / SW trigger ~1000 sub-event OCDB Yes No (Base classes) 1
7 Drift velocity 1 word/anode 1.04E+06 1.04E+06 0 Run DAQ (dedicated runs with S/W triggers during standard running) yes Standard runs / special trigger (injectors) every 10-15 minutes sub-event OCDB Yes No (Base classes) 1
8 Dopant concentration map   0 3.00E+07 0 Once DCDB yes Standard runs  0   OCDB Yes No Note 2
9 External temperature monitor 2x sensors + 1 x CARLOS 0 1.46E+02 0 Run DCS yes Standard runs  0   OCDB No No 4
10 10--->8 bit compression unique for all channels (see total) 0 0.125 0 Run DAQ (JTAG - It can be written to a run header) yes Standard runs  1   Note 1 Yes     5 / Note 1
11 ADC readout clock (20/40 MHz) unique for all channels (see total) 0 0.125 0 Run DAQ (JTAG - It can be written to a run header) yes Standard runs  1   Note 1 Yes     5 / Note 1
12 Analogue memory sampling frequency (20/40 MHz) unique for all channels (see total) 0 0.125 0 Run DAQ (JTAG - It can be written to a run header) yes Standard runs  1   Note 1 Yes     5 / Note 1
13 Detector polarizing voltage 16 bit/sensor 0 520 0 Run DCS yes Standard runs  0   OCDB yes    
        3.14E+07                      
DCS access - offline has access only to DCS archive DB, curently no access to configuration DB
DAQ - offline has access to raw data and DAQ logbook, but no acccess to LDC or GDC directly
OCDB - Calibration parameters are stored in the Offline Calibration DB. The data used to calculate these parameters, the reference data, can also be optionally archived for later access from offline.
Note 1:  Data fron FEE: they can be written in a run header. So they do not need to be stored elsewhere
Note 2: maps are taken once for ever from the construction DB
Note 3: Interface with shuttle is on CVS. Specific preprocessor code is expected by end of April