Re: BrRdoBBModule

From: I. G. Bearden (bearden@hehi03.nbi.dk)
Date: Wed Nov 22 2000 - 10:14:02 EST

  • Next message: Flemming Videbaek: "BRat 1.12.0"

    Yury Blyakhman wrote:
    
    >        Hello, everybody.
    >  I just checked out a fresh version of brat. "make" works OK, but when
    > you do "make install" it crashes, complaining:
    >       /usr/bin/ld: cannot open -lBrat_Base: No such file or directory
    > Any ideas anybody?
    >
    >
    >   I tried to satisfy many different requests and made some changes:
    >
    > BrRdoBB.h
    > ==========
    >   Added two methods:
    >         Float_t GetMult() -- returns BB non-corrected multiplicity by
    > Big Tubes
    > only (some of hits in all Big Tubes).
    >         Int_t GetTimeMethod() -- returns timing method as Int_t to be
    > compared
    > with:
    >                 BrRdoBB::kTimeFromBigTubesBB     - Best method, works in
    > most ca
    > ses
    >                 BrRdoBB::kTimeFromSmallTubesBB
    >                 BrRdoBB::kTimeFromFastTubesBB
    >  SetMult() and SetTimeMethod() are added as well.
    >
    > BrRdoModuleBB.cxx
    > =================
    >   in Init()
    >         - Checks for BrCalibrBB.dat before reading from it.
    >         - If can not find it even in $BRATSYS/params/bb/, throws BrFatal
    > and
    > aborts the code
    >   in Event
    >         - t0 calculations are completely redone.
    >         - VertexZ is calculated by methods. It tries best method
    > BigTubes
    > first, then Small and then Fastest, setting the appropriate value in
    > SetTimeMethod()
    >         - Multiplicity calculations are added by SetMult()
    
    It would be very good if you used the SetLeftTime() and SetRightTime(), so
    that we could get these independtly.
    I also think that you should change the binning of diagnostic histograms to
    better reflect
    the TDC resoultion (i.e. 40bins/ns) .  If you do this, you will notice that
    the BBt0 does not
    look nearly as nice as you would think if you only looked at the present
    histogram.
    It would also be wonderful if you (or anyone else!) could explain why the
    BBt0 spectrum looks
    as it does...
    
    >
    >
    >   It works nice for me, so ,please, report any problems.
    >
    > P.S. Flemming, could you, please, tag this new brat version? Thanks,
    >
    
    and please do the tagging...
    
    cheers,
    
    --
    Ian--------------------------------------------------------------------
    | I.G. Bearden                                                         |
    | Niels Bohr Institute Tb 3    email:      bearden@nbi.dk              |
    | Blegdamsvej 17               phone:      (+45) 35 32 53 23           |
    | København Ø                    FAX:      (+45) 31 42 10 16           |
    | Danmark                                                              |
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