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

Hi Ross, Christof others,

I have attached one slide about the distortion extrapolation procedure as envisionned, with the latest TPOT configuration.

Comments welcome.

Ross: feel free to include in your presentation in place of the old slide

Best,

Hugo

On 1/5/22 06:42, Christof Roland via sPHENIX-calibration-l wrote:

      Hi Ross,

i have a few comments on the nice slides you prepared. 

Slide 11. Large acceptance TPOT demonstrated to work, small coverge + central membrane data can help is a bit awkward.

small coverge + central membrane data is all we are going to get, so this is what we must get to work now.

I am not sure we should show the full coverage TPOT strategy anymore, could we prepare a similar 

sketch for the small coverage + central membrane workflow?

Slide 13. Please expand a bit on the code exists but not integrated in F4A. This is a central part of MDC2.

We should mention when this is supposed to be ready and functional to extract a correction map from simulated

laser flashes. 

What does linear model mean?

What does residual ~50% of original fluctuations mean?

Slide 14 Maybe mention here the degree of readiness or ETA of the three boxes. 

Please remove the some missing jobs are okay statement. This kind of thinking has caused more harm 

than good in all heavy ion experiments I know.

Slide 16

The MDC2 Goal is to demonstrate we can derive full correction tables from just looking at distorted "raw"

data (collisions + CM) simulated with a given distortion model. 

MC derived corrections help us to develop and execute the tracking workflow. 

Please state this clearly.

We should also mention that the big challenge we have to overcome is the small acceptance TPOT

+ residuals in the Matrix sets that are unconstrained on the outside. Filling in the azimuthal depenence 

colley base on the CM flashes. Maybe with help from the digital currents. Keeping this vague and implict 

between the lines wont help us much. This is not a review. We need to organize ourselves to get this done. 

Slide 23 

Maybe also state the staged approach to MDC2. Get everything running and tested based on truth derived corrections. 

Replace those as soon as data derived corrections are available. 

Thanks 

    Christof 

On 5. Jan 2022, at 13:39, Ross Corliss via sPHENIX-calibration-l <sphenix-calibration-l AT lists.bnl.gov> wrote:

Dear All,

I've posted draft slides for my talk on Thursday in this week's TPC Calibration indico page:  

https://indico.bnl.gov/event/13724/contributions/56788/attachments/39062/64604/TPC.Distortions.Jan.2022.Collab.Meeting.pdf  

Criticism and comment are most welcome, as always.  There is a great deal of ground to cover.

-Ross

==========
Dr. Ross Corliss

If it's work hours, and I'm not in a meeting, feel free to look for me in my virtual office: https://stonybrook.zoom.us/my/rossoffice?pwd=ZmZ2SlRIMVFvUUJwbUkyOVNVTmE5QT09

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