Re: [Brahms-dev-l] updates to DC tracking code.

Well
this is in fact an old message - see the date mar 22, the code is actually
not so mysterious; The fix
is in BrRawInputData that takes care of all this kind of problems (by PS)

/fv


----------------------------------------------------------------
Flemming Videbaek
Physics Department
Brookhaven National Laboratory

e-mail: videbaek@bnl.gov
phone: 631-344-4106
----- Original Message ----- 
From: <ufstasze@rcf.rhic.bnl.gov>
To: <videbaek@bnl.gov>
Cc: <brahms-dev-l@lists.bnl.gov>
Sent: Monday, March 22, 2004 8:46 AM
Subject: Re: [Brahms-dev-l] updates to DC tracking code.


> Dear Flemming,
> If you look at the DC plots from supermon it is clear
> that T4-1-X1, channels 8->23 are placed with T4-1-U1 channels 12->27.
> The same we have for X2 and U2. The simplest explanation for that is that
> max. board -> fb3 cables denoted as D1 and D2 have been replaced.
> This mis-mapping is since
> run # 10162. The previous run 10062 has the mentioned section of X1 and X2
> dead, so my guess is that it happened when (Bob?) was playing with
> the broken fuses on the max. board.
>
> We don't loose anything because of that, just our software will
> look more mysteriously.
>
> Cheers
> Pawel.
>
> > Dear Pawel,
> > I red the e-log, but it is actually not clear what the 1-D2 problem is.
> > Assuming as you say it is a cabling problem it must have been present in
> > eons i.e. even the dAu- run. Certainly I am not aware of changes beeing
> > made since. Could you make both the problem as well as the
> > remedy more clear. For the un-informed reader the e-log is not detailled
> > enough ?
> >
> > Thanks
> >     Flemming
> > ----------------------------------------------------------------
> > Flemming Videbaek
> > Physics Department
> > Brookhaven National Laboratory
> >
> > e-mail: videbaek@bnl.gov
> > phone: 631-344-4106
> > ----- Original Message -----
> > From: "Pawel Staszel" <ufstasze@if.uj.edu.pl>
> > To: <brahms-dev-l@lists.bnl.gov>
> > Sent: Sunday, March 21, 2004 11:12 AM
> > Subject: [Brahms-dev-l] updates to DC tracking code.
> >
> >
> >> Dear Collaborators,
> >> I've committed the changes to the DC tracking code, namely
> >> to BrDCClusterFinder{h,cxx} and to BrDCViewCombiner.cxx.
> >> The changes where introduced to let T3 run with CheckSingleHits
> >> option enabled with a reasonable cpu time consumption.
> >> For this purpose I replaced SelectDCHits method with GetSelectedDCHits
> >> inline function.
> >> It is used when CheckSingleHits option is enabled.
> >> The second method is much
> >> faster as it just pickup the selected hits from DCClusterFinder
> >> module. This change increases the speed of T3 AuAu at 4 deg. by factor
> >> of ~8. Now, the CheckSingleHits option is enabled by default for all
> >> of the DCs. I also checked that enabling CheckSingleHits option
> >> increases the number of T3_T4 matched tracks by 10% for trig. 2
> >> events.
> >>
> >> I need to commit the another changes to BrRawDataInput.cxx to handle
> >> the D1-D2 cable replacement (see e-log form 20March 8:00->16:00).
> >> However, I can't do this as long as the cabling in not corrected
> >> (don't know the affected run # range).
> >>
> >> Best regards
> >> Pawel.
> >>
> >>
> >> _______________________________________________
> >> 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-l
>


_______________________________________________
Brahms-dev-l mailing list
Brahms-dev-l@lists.bnl.gov
http://lists.bnl.gov/mailman/listinfo/brahms-dev-l