Hello, I recently added several bratmain scripts for ZDC pedestal, TDC gain, slew-correction and z-vertex offset calibrations to brat/scripts/calib/zdc (and corresponding classes to brat/modules/calib/zdc and brat/modules/calib/vertex). Also BrZdcRdoModule class has been changed to be able to get calibration parameters from a database. It also calculates z-vertex, accounting for the offset relative to the TPM1. There are several calibrations stored in a DB, in particular slew-correction has been done, basing on set of runs from 5677 to 5685 and should work well for these and later runs. I also did z-vertex offset calibrations for two runs (5677 and 5901 for J.H.), these are also in a DB. As it was observed with Flemming, obtained ZDC time resolution after slew-correction was <= 90 psec, and sigma of z(ZDC)-z(TPM1) distr-n was of the order 2.7 - 2.9 cm. TDC (leading-edge discr.) gain calibration parameters were obtained from runs 1373-1381 and are in a DB. We did also another time-claibration run with Michael 2 weeks ago (run 6866) for both l.e. and CFD TDCs, so I'll commit the newer data soon. There are also pedestals (for hi- and low-gain ADCs)for runs 4610, 5677-5685 in a DB. Still there is no ZDC energy calibration script, at the moment, for conversion ADC channels to GeV, this work is in progress. Andrei, Michael.
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