Hi Steve, et al., As I understand it, the idea is not to have n local DBs, but one central. There is no risk of a bad calibration, because the people who do the calibration will always make sure that the calibration is good *before* committing it to the DB. So far this has not been much of a problem since only Djamel has done calibrations. Now that the instructions are available, others should also pitch in (and check their results, of course.). Ian > -----Original Message----- > From: owner-brahms-l@bnl.gov [mailto:owner-brahms-l@bnl.gov]On Behalf Of > Stephen J. Sanders > Sent: 11. april 2002 22:18 > To: brahms-l@bnl.gov > Subject: Re: calibration and reconstruction guide > > > Hi Djamel, > Thanks for the detailed instructions. This type of "how-to" is > extremely useful > to those of us without local "experts" to rely on. > > One question: When you talk about commiting to the database, are > you working with the main brahms DB, or a local copy? If you > changing the main DB, isn't there a risk of someone messing up a good > calibration that is already there? > > So far I have only "taken" from the DB so I'm not sure of > protocols for modifying it. > > Regards, > Steve > > > Djamel Ouerdane wrote: > > > Hi Dana, > > > > Great to hear that there's some slewing correction for TOFW going on. > > For the TDC gains, it's not difficult to include into the database. > > You just need to create an ascii file in the format readable by the > > calibration module and you'll be able to use the bratmain script that > > inserts the values into the DB. Here is a tyical ascii file (for TOFW): > > > > ****************************************** > > * Calibration for Tof detector TOFW > > * Used events from run 2544 > > ****************************************** > > * > > * slat | top TDC gain | bot TDC gain > > * ------------------------------------ > > > > 1 0.0250952 0.0250303 > > 2 0.0250861 0.025083 > > 3 0.0250612 0.0250488 > > 4 0.0250498 0.0250482 > > 5 0.0250541 0.0250539 > > 6 0.0250663 0.0250716 > > 7 0.0250747 0.0250859 > > 8 0.0251146 0.0250983 > > ... > > ... > > down to 125 > > > > You should leave an empty line between the last line with a > star and the > > first tube line, it is really important. > > > > > > I made a version of the guide in pdf, it is at the same place. > > > > Djam > > > > >
This archive was generated by hypermail 2b30 : Thu Apr 11 2002 - 16:33:30 EDT