sPHENIX discussion of software

[Anthony Frawley <afrawley AT fsu.edu>]

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?

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