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DB table for TPC Padrow T0s
Updated on Mon, 2009-05-18 15:27. Originally created by genevb on 2009-05-18 15:22.
TPC calibration analyses have observed timing offsets as a function of padrow for clusters which were found online. While pad-to-pad T0 variances are handled by the online cluster finder, the variations between padrows are not (see this plot of padrow-by-padrow variations from sector 7 which demonstrate offsets corresponding to RDO regions at padrows 14-21 and 22-29).
To this end, we propose to add a table at Calibrations_tpc / tpcPadrowT0 which will need a single column for:
float T0[45]; /* T0s per padrow */
I have placed this declaration into an idl file at StDb/idl/tpcPadrowT0.idl in CVS, which should appear in DEV in tonight's AutoBuild. The table should use the same 24 elementIDs labeled as "Sector" ("SectorIDs") used frequently in the TPC tables.
Thanks,
-Gene
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