Now the figures are available on http://www.nbi.dk/~staszel/fs/geometry/ Please, refer to section titled: Tuning T1 and T2 geometry in y direction Regards Pawel. Pawel Staszel wrote: > Hi Flemming Ian and all, > > I realized that after having the "full" T1 and T2 calibration > T2 projected tracks to T3 T4 and T5 detectors have systematic offsets > if dy namely > ~0.5cm for T3 1.3cm and 2.cm for T5. I found that by changing T2 > horizontal rotation > from 0 to -0.126 deg and rising T2 by 0.1cm (from 0.8 to 0.9cm) we can > remove all this offsets and additionally > we get perfect consistency with y-slopes for all T2-DC combinations. > > Additionally if we rotate T1 horizontally by -0.08 deg and rise it by > 0.5 (from 0.8 to 1.30cm) we obtain > a nice consistency between T1-T2 and T1-DCs. > > I also made a test with the new geometry and I got nice consistency > for matching peaks > (I will provide the figures soon). > I think that we should update geometry in the db for the QM analysis. > We are just about > to start doing the global tracking. > > Regards > Pawel. > > > > -- > ---------------------------------------------------------------------- > | Pawel Staszel | > | Niels Bohr Institute Tb 8 email: staszel@nbi.dk | > | Blegdamsvej 17 phone: (+45) 35 32 53 51 | > | København Ø FAX: (+45) 35 32 50 16 | > | Danmark | > ---------------------------------------------------------------------- > > -- ---------------------------------------------------------------------- | Pawel Staszel | | Niels Bohr Institute Tb 8 email: staszel@nbi.dk | | Blegdamsvej 17 phone: (+45) 35 32 53 51 | | København Ø FAX: (+45) 35 32 50 16 | | Danmark | ----------------------------------------------------------------------
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