Commissioning and running of sPHENIX

[Anthony Frawley <afrawley AT fsu.edu>]

Hello Jaein,

I would like to request a change of convention for the bco_diff calculation.

From:

    int bco_diff = ((intt_raw_hit->get_bco() & 0x7fU) - intt_raw_hit->get_FPHX_BCO() + 128) % 128;

To:

   int bco_diff = (intthit->get_FPHX_BCO() -  (intthit->get_bco() & 0x7fU) + 128) % 128;

Then the time bucket calculation becomes:

     int time_bucket = (intthit->get_FPHX_BCO() - (gl1bco & 0x7fU) - m_inttFeeOffset + 128) % 128;

where m_inttFeeOffset is the bco_diff corresponding to the triggered crossing.

This makes time bucket zero correspond to the triggered crossing, and time buckets 1-127 are the following crossings. That is what the TrkrHitSet expects.

Thanks

Tony

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From: sphenix-run-l-request AT lists.bnl.gov <sphenix-run-l-request AT lists.bnl.gov> on behalf of Jaein Hwang <jaeinhwang213 AT gmail.com>
Sent: Wednesday, August 14, 2024 1:35 PM
To: Park, JaeBeom <jpark4 AT bnl.gov>
Cc: sphenix-run-l AT lists.bnl.gov <sphenix-run-l AT lists.bnl.gov>; Genki Nukazuka <nukadukagenki AT gmail.com>
Subject: Re: [[Sphenix-run-l] ] Tracking BCO matching meeting, Aug 14th, Tue after SCM

 

Dear Jaebeom,

Hello,

I’d like to update and to clarify the current INTT software module status related to INTT offset calibration,

About INTT offline timing calibration(BCO offset calibration), Joseph and myself have fixed our code and have updated that on coresoftrware.

Here is the latest version of BCO offset code.

coresoftware/calibrations/intt/inttcalib at master · sPHENIX-Collaboration/coresoftware

github.com

Implementation of BCO offset in offline analysis has to be implemented and Genki is working on it.

Regards,

Jaein

8/13/24 오후 5:55, Park, JaeBeom <jpark4 AT bnl.gov> 작성:

Dear all, 

We will resume the tracking subsystems BCO alignment meeting tomorrow after the shift change meeting.

As there are a lot of things to be addressed, we will try to focus on shorter updates and resume the work into subgroups in offline.  

Action items and needed updates for tomorrow’s discussion

• INTT offline timing calibration (Tony and Genki)
• INTT pool/decoder + towards streaming readout functionality (Martin, Raul, Sam, Dan, Chris)
• TPC/MVTX BCO matching efficiency + parallel event combining (Thomas, Joe) 

Date : Tuesday, Aug 14th after the SCM (presumably around 16:30 PM ET)

Indico : https://indico.bnl.gov/event/24535/

Zoom : https://bnl.zoomgov.com/j/1614645041?pwd=bmE4STBRZk5tVVVUUC8zRnQxSlFyQT09

Best,

Jaebeom