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[Zhenyu Ye <yezhenyu2003 AT gmail.com>]

Hi Te-Chuan,

Nice work. 

On the last slide, do you know what the motivation is  to merge FST and sTGC 
geometries? I think it is better to keep them separated, same for the 
simulators, so that one can update the FST or sTGC software without worrying 
about affecting the other one, or how to keep the code synchronized. This is 
what we did for HFT, with PXL/IST/SSD separated. I brought this idea up of 
separating FST and sTGC in the simulation software at a forward upgrade 
meeting about half a year (?) ago, and Daniel Brandenburg (cc’ed) certainly 
supported it and agreed to do the splitting for the simulators

Best,
Zhenyu

> On Jul 11, 2019, at 9:06 AM, Te-Chuan Huang <tchuang.phys AT gmail.com> wrote:
> 
> Dear All,
> 
> Sorry, I couldn’t get my presentation ready before the meeting.
> i have upload it to the meeting drupal page: 
> https://drupal.star.bnl.gov/STAR/event/2019/07/11/star-forward-silicon-tracker-meeting/simulation
> 
> The problem I presented before that only part of the silicons have hits is 
> now fixed.
> The issue was the mother volumes containing silicons were too small that 
> some of the silicons were outside the mother volumes.
> So, the GEANT couldn’t catch up the material outside the mother volumes.
> After fixing this issue, everything looks reasonable.
> 
> Cheers,
> Te-Chuan
> 
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