sPHENIX discussion of software

[Hugo Pereira Da Costa <hugo.pereira-da-costa AT cea.fr>]

On 8/11/20 1:32 PM, Anthony Frawley wrote:

        No, you did not miss anything. That all sounds good. 
      
        
      
      
        Out of curiosity, is it easy to say what the occupancy would be
        without the threshold adc cut?

easy yes but time consuming. I would need to rerun my evaluators, because what I save is a total number of hits per layer and not the details of which hit passes the threshold and which not. I'll keep you posted.

        Thanks
      
        Tony

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From: Hugo Pereira Da Costa <hugo.pereira-da-costa AT cea.fr>
Sent: Tuesday, August 11, 2020 3:24 PM
To: Anthony Frawley <afrawley AT fsu.edu>; sphenix-software-l AT lists.bnl.gov <sphenix-software-l AT lists.bnl.gov>; sphenix-calibration-l AT lists.bnl.gov <sphenix-calibration-l AT lists.bnl.gov>
Subject: Re: [Sphenix-software-l] Occupancy in the TPC

 

Hi Tony,

Hits are TrkrHit(v1) from "trackbase". Only counted are those that have a charge (get_adc()) above threshold

My understanding (correct me if I am wrong) is that the max number of such hits per layer is NPHiBins x NZBins in this layer. Which would correspond to 100% occupancy. Did I miss something ?

Hugo

On 8/11/20 12:36 PM, Anthony Frawley wrote:

Hi Hugo,

            Question: what is the definition of a "hit"?
          
            
          
          
            Thanks
          
            Tony

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From: sPHENIX-software-l <sphenix-software-l-bounces AT lists.bnl.gov> on behalf of Hugo Pereira Da Costa <hugo.pereira-da-costa AT cea.fr>
Sent: Tuesday, August 11, 2020 2:15 PM
To: sphenix-software-l AT lists.bnl.gov <sphenix-software-l AT lists.bnl.gov>; sphenix-calibration-l AT lists.bnl.gov <sphenix-calibration-l AT lists.bnl.gov>
Subject: [Sphenix-software-l] Occupancy in the TPC

 

Hi all,

Following up on a question from Christof last week, I looked into the
TPC occupancy in the newly 100kHz Pile-up Hijing files derived from the
ones produces by Chris.

The results are summarized in the file attached. And could be discussed
e.g in the next simulation and software meeting.

I wanted to post them early because as you will see the occupancies I
get with these new files are significantly smaller than those obtained
with older files from Christof, and I have not been able to find the
reason for this yet.

Comments and suggestions are welcome.

(in particular: Christof, could you point me to the macros used to
generate/reconstruct the files at
"/sphenix/user/bogui/MacrosModular/macros/macros/g4simulations/clus_only/SvtxCluHijMBPu100_Mar20_1_*"
? that would help me debug further)

Hugo