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[ALICE3] TF3: group pixel columns into readout columns in digitizer - #15907

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@maciacco maciacco commented Oct 7, 2026 •

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The present design of the TOF ASIC includes pixel columns grouped into readout columns, each of which has two TDC pairs carrying out the ToA/TOT measurements. The TDC pairs have a busy window of 100 ps during which no new pixels can be read out. This is included in the digitizer by caching two digit times per readout columns (default: 4-pixel-column groups) and checking whether future digits fire beyond the TDC window (default: 3 us).

TODO: the treatment of multiple hits crossing the same pixel during the TDC acquisition window should be improved.

@maciacco maciacco changed the title [ALICE3] TF3: group pixel columsn into readout columns in digitizer [ALICE3] TF3: group pixel columns into readout columns in digitizer Oct 7, 2026
Please consider the following formatting changes to AliceO2Group#15907

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