The change done for the Cu-Cu run is NOT a problem, but was a timing adjustment. The change in the tdc distribution just implies that the lvl0 time is set by another counter (liekly the RHIC clock). Since all times are relative this should not have changed any of the calibrations. This change in time is small and should not have changed the gains, by the way did it go up or down? Later during the pp runs the overall gate to BB and CC was changed since the overlap was not good for those settings. /fv Hello, I committed to DB calibrations for BBC for 62 GeV Cu+Cu run. I had to changed the reference tubes for both left and right arrays, because otherwise I could not get a correct vertex distribution. The main problem I could see so far: as Kris noticed in the e-log, http://brahms-web.brahms.bnl.gov/cgi-bin/elog.pl?nb=2005&action=view&page=173 there is a typical change in the tdcs by ~50 channels. More than this, the adc gains seem also to have moved by ~50 channels. Changing the reference tubes provides a way to check... So, if anybody is looking at these data - please write if you see any strange problems related to the vertex. For reference, the run numbers are: 13674, 13686, 13760, 13770, 13789, 13821. Thank you! Kind regards, Catalin Ristea. -- Catalin Ristea--------------------------------- High Energy and Heavy Ions Group Niels Bohr Institute Blegdamsvej 17, 2100 Copenhagen, Denmark Tel (+45) 35 32 54 04 / Fax (+45) 35 32 50 16 E-mail: catalin.ristea@nbi.dk http : www.nbi.dk/~ristea ----------------------------------------------- ------------------------------------------------------------------------------ _______________________________________________ Brahms-dev-l mailing list Brahms-dev-l@lists.bnl.gov http://lists.bnl.gov/mailman/listinfo/brahms-dev-l _______________________________________________ Brahms-dev-l mailing list Brahms-dev-l@lists.bnl.gov http://lists.bnl.gov/mailman/listinfo/brahms-dev-lReceived on Wed May 11 09:16:15 2005
This archive was generated by hypermail 2.1.8 : Wed May 11 2005 - 09:16:19 EDT