[Halla12_software] unified PVDIS and SIDIS solenoid

xqian xqian at jlab.org
Sun Mar 20 18:53:41 EDT 2011


Hi Zhiwen,
     Thanks for the effort.
     For SIDIS, we would need three more detectors, scintillator Heavy 
gas Cerenkov and MRPC,
     Roughtly, 80 cm (HG) + 15 cm (MRPC) + 5 cm (Scintillator), taking 
some extra room, I think 1.1-1.2 m more the requirement of PRVIS is 
probably reasonable.
     Therefore, I would suggest to unify the design with 1.2 m more in 
the endcap. The part close to the beam line (just under the detector) 
will be limited by the SIDIS, as we require more forward angle. 
Therefore, this also needs to be taken into account when we use the 
unified design.
      Thanks a lot,


On 3/20/2011 11:51 AM, Zhiwen Zhao wrote:
> Hi, folks
>
> As we are trying to unify the yoke design for PVDIS and SIDIS, I have
> changed some geometry files in SVN and updated main database
> rename solid_BaBar_PVDIS_solenoid.pl to solid_BaBar_solenoid.pl
> rename solid_CDF_SIDIS_solenoid.pl to solid_CDF_solenoid.pl
> remove solid_BaBar_SIDIS_solenoid.pl
>
> Now we have solid_CDF_solenoid.pl and solid_BaBar_solenoid.pl match our
> field map and yoke design.
>
> SIDIS may need longer endcup, we shall evaluate it and modify design
> accordingly.
>
> Zhiwen
>
> _______________________________________________
> Halla12_software mailing list
> Halla12_software at jlab.org
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-- 

Best regards,

Xin

-------------------------------------------------------
Dr. Xin Qian
Postdoctoral Scholar @ Kellogg Radiation Lab of Caltech
Phone: 1-626-395-4267 (o)
MS 106-38 Caltech, 1200 East California Blvd,
Pasadena, California, 91125
skypename: lastgeorge
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