Re: F.Y.I. Cerenkov detector in geant

[Beni Zihlmann <zihlmann@jlab.org>]

Hi All,
some time ago before the calorimeter review last year we decided to 
leave the Cerenkov in the
geometry for the simulation studies because eventually there will be a 
PID detector there
that will introduce probably a similar amount of material in the path of 
the particles.
removing it from the geometry is very simple as Sasha pointed out.
comment out the line.

<!-- start of the comment
<posXYZ volume="CerenkovCntr" X_Y_Z="0.0 0.0 466.0" />
end of the comment -->

Cheers,
Beni



> Hi Sasha,
>
> It seems like the default should be to excude the Cerenkov Counter from
> the default geometry (as long as it is easy to add it back for special
> studies).
>
> Cheers, Elton.
>
> On Thu, 30 Apr 2009, Alexander Somov wrote:
>
>   
>> Hello all,
>>
>> To those who are forking with the tof and fcal
>> reconstructions: the Cerenkov detector is included
>> in the default gluex geometry.
>>
>> If you don't need it, you can exclude Cerenkov detector
>> commenting out the following line in the hdds/main_HDDS.xml
>> file and recompiling hdgeant.
>> <posXYZ volume="CerenkovCntr" X_Y_Z="0.0 0.0 466.0" />
>>
>> (we can also exclude it from the default gluex geometry)
>>
>> Cheers,
>>        Sascha
>>
>>