[Primexd] [EXTERNAL] PrimEx Run Meeting - Monday, Aug. 29th 4PM EDT

Drew Smith andrew.p.smith at duke.edu
Sun Sep 4 17:55:51 EDT 2022


Hi Sasha,

Yes, 1.5 days of data taking with the field off will be enough for the Compton analysis.

Best,
-- Drew


________________________________
From: Alexander Somov <somov at jlab.org>
Sent: Sunday, September 4, 2022, 5:53 PM
To: Igal Jaegle <ijaegle at jlab.org>; Drew Smith <andrew.p.smith at duke.edu>; gasparan at jlab.org <gasparan at jlab.org>
Cc: primexd at jlab.org <primexd at jlab.org>
Subject: Re: [Primexd] [EXTERNAL] PrimEx Run Meeting - Monday, Aug. 29th 4PM EDT

Hi,

Yes, the plan is to ramp the magnet down
during the day tomorrow. We are on the stable
production at 50 nA now. I'll do some
rate scans for the trigger later today.

We can have a short meeting at 8:45 tomorrow
(in addition to our regular meeting at 4 pm) or communicate by emails. We can start ramping
the magnet down around noon tomorrow
(may be a bit earlier), so we can take the magnet
off data for at least  1.5 days. Drew, wold it be enough
the field off data or you ?

Cheers,
              Sasha


________________________________
From: Primexd <primexd-bounces at jlab.org> on behalf of Igal Jaegle <ijaegle at jlab.org>
Sent: Sunday, September 4, 2022 4:37 PM
To: Drew Smith <andrew.p.smith at duke.edu>; gasparan at jlab.org <gasparan at jlab.org>
Cc: primexd at jlab.org <primexd at jlab.org>
Subject: Re: [Primexd] [EXTERNAL] PrimEx Run Meeting - Monday, Aug. 29th 4PM EDT

Drew, only Sasha and I were present.

Sasha will come or is already in the control room by now.

We just discussed the FCAL HV change of six outliers blocks. I set the software gain to one and get the pi0 peak within 5% of the theoretical mass. Potentially roughly 1% of the FCAL block might beneficiate from an HV change. We will discuss in the coming days if it is worse to change their HV. If so, the change will be applied at the beginning of the He runs. No further HV change will be applied for the rest of Be runs.

tks ig,
________________________________
From: Primexd <primexd-bounces at jlab.org> on behalf of Drew Smith <andrew.p.smith at duke.edu>
Sent: Sunday, September 4, 2022 4:27 PM
To: gasparan at jlab.org <gasparan at jlab.org>
Cc: primexd at jlab.org <primexd at jlab.org>
Subject: Re: [Primexd] [EXTERNAL] PrimEx Run Meeting - Monday, Aug. 29th 4PM EDT

Hi All,

I was late to the meeting because I was finishing up my shift. By the time I joined I think the meeting had already ended. Was there any important discussion?

Currently we are running at 50nA (we spent the past ~24 hours at 100nA). I think we were originally planning to continue running at 50nA and then ramp down the magnet tomorrow during the day. Is it still the plan?

Best,
-- Drew

________________________________
From: gasparan at jlab.org <gasparan at jlab.org>
Sent: Sunday, September 4, 2022 10:47:22 AM
To: Drew Smith <andrew.p.smith at duke.edu>
Cc: primexd at jlab.org <primexd at jlab.org>
Subject: Re: [Primexd] [EXTERNAL] PrimEx Run Meeting - Monday, Aug. 29th 4PM EDT


  Hi Drew and All,
 I will try to connect to today's 4 pm meeting by phone,however,
 if there are items that need to be discussed, please use email.

 Thanks,
 Ashot


> Dear All,
>
> As planned, we will have a short meeting at 4PM (local time) this
> afternoon to discuss the status of the experiment and the short term run
> plan. We can use the same zoom link for the meeting:
> https://urldefense.proofpoint.com/v2/url?u=https-3A__jlab-2Dorg.zoomgov.com_j_1610006900-3Fpwd-3DM2c0eU1senhHTUNYMElnT3Z2NEpwZz09&d=DwIFAw&c=CJqEzB1piLOyyvZjb8YUQw&r=lU05Rh9aCuulfMNDTEUwllfR5wGoS__-zKJvNoD4iqU&m=zk13s-LhUcpqZyFjIsUFqGBEuwSACzTSuGASM8rdBMwi5pnhw9pCOLOT8rg72V_A&s=UhILWYnDuxaH0Q2p7nchz7Hv3w3gzALQ8fcSi7sJEn8&e=
>
> <https://urldefense.proofpoint.com/v2/url?u=https-3A__jlab-2Dorg.zoomgov.com_j_1610006900-3Fpwd-3DM2c0eU1senhHTUNYMElnT3Z2NEpwZz09&d=DwMFAw&c=CJqEzB1piLOyyvZjb8YUQw&r=lU05Rh9aCuulfMNDTEUwllfR5wGoS__-zKJvNoD4iqU&m=FocMKg0HPJPrgVd9ZpoCN_zf4wDSuddn7Me8VyKOvfAPlLPAsCsaugF5yE9cGAG1&s=_X6uczayTZdcGLg5irMV5pYFJoYs4rqSQghj3AfEnkI&e=>
>
> Zoom Meeting ID: 161 000 6900
> Zoom Meeting Password: 656051
>
> Best,
> -- Drew
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> https://urldefense.com/v3/__https://mailman.jlab.org/mailman/listinfo/primexd__;!!OToaGQ!updxW0zsqcCpJK0TgXe_9jWWmTqIUwKFcsbOuLQCKp1-ZDqc9DMKWzPNed34QeDG3ian3Fc6qpWHxUQ5uOxJTA$
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