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sphenix-tracking-l - [Sphenix-tracking-l] INTT acceptance in phi

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  • From: nouicer <rachid.nouicer AT bnl.gov>
  • To: Christof Roland <christof.roland AT cern.ch>, "Frawley, Anthony" <afrawley AT fsu.edu>, sphenix-tracking-l AT lists.bnl.gov
  • Subject: [Sphenix-tracking-l] INTT acceptance in phi
  • Date: Wed, 29 Aug 2018 14:52:05 -0400

Dear Tony and Christof, 
 
Fellowing our discussion during last general meeting about the INTT acceptance, we put some efforts to check the INTT acceptance, see attached file obtained directly from detector engineering design (we have more drawings). In our design, the INTT acceptance is 100%. We found out that it is very difficult to understand on how you end up with 92% acceptance in phi as you reported in the meeting. The particle has to go at least through three layers, even if the particle has very low momentum. Could you check the INTT geometry in simulation to make sure  that we have the correct coverage in phi, hardware conceptual design and software geometry should be the same? 

If you can give us some feedback on how did you get 92% acceptance in phi, we can work on improving the design. 
 
Thanks. 
 
Sincerely, 
Rachid 
 

 

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