Sphenix-calibration-l mailing list

[Hugo Pereira Da Costa <hugo.pereira.da.costa AT gmail.com>]

On 3/12/24 11:55, Christof E Roland wrote:
> Hi Hugo,
>
> this helps a lot. Thanks for checking.
> Let me give it a try tomorrow.
>
> the laser origins in the plot below look a bit peculiar...

It's hard to see in the 3D plot. Attached is the r vs z and phi vs z 
plots.  I think the laser origins are at a reasonable place, although I 
do not know how this match the actual hardware.


Hugo


> Cheers
>
>     Christof
>
>
> > On 12. Mar 2024, at 18:41, Pereira Da Costa, Hugo Denis Antonio via 
> > sPHENIX-calibration-l <sphenix-calibration-l AT lists.bnl.gov> wrote:
> >
> >
> > All, especially Christof, Charles
> >
> > - Charles: thanks for the suggestion about changing the lasers orientation ! 
> > that is why I was not getting any hits. I only tested with theta = 0, which 
> > is along the beam, and with lasers at R=60 , that is, between R2 and R3. All 
> > G4Hits were generated between regions, and without distortions, were all 
> > falling into the dead are. Hence no hits. Using the angles you suggested, I 
> > do see G4Hits, hits, even clusters, using the standard clustering, using the 
> > latest code from git.
> >
> > See figure attached (generated with my own evaluator)
> >
> > - Christof: in case this helps, I have put the macro I use as well as the modified 
> > version of G4_TrkrSimulation.C that selects only one laser angle, at 
> > "/phenix/u/hpereira/for_christof"
> >
> > Hugo
> >
> > <Screenshot_20240312_113517.png>_______________________________________________
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