[Dsg-hallb_prad_ii] PRad meeting and run tomorrow

Wed May 7 17:32:05 EDT 2025

Hello Tsuneo and Xiangdong,

I verified the settings for the computer, so it does not go to sleep mode base on the instructions provided by computer center support.

I completed and tested the LabVIEW code to archive data locally in the SPFDOBRENZ computer.
Currently the code archives all variables requested by Andrew, here is the list:
Flow (cc/min)
Cell Pressure (mTorr)
Chamber Pressure (mTorr)
8 temperature readings (K)
Calculated areal density (atms/sc)

If desired more variables can be added.
Here a screenshot of the new controls added to the main PRad LabVIEW user interface
Next time you should be able to use with no issues.

[cid:caf521de-2e1b-428b-a5c7-556c25239864]

Regards,
Pablo

________________________________
From: Tsuneo Kageya <kageya at jlab.org>
Sent: Wednesday, May 7, 2025 4:15 PM
To: Xiangdong Wei <xwei at jlab.org>; Pablo Campero Rojas <campero at jlab.org>; Andrew Schick <aschick at umass.edu>; bhesha <bhesha at jlab.org>; Phillip Dobrenz <dobrenz at jlab.org>; Donald Williams <donaldw at jlab.org>
Cc: Tsuneo Kageya <kageya at jlab.org>
Subject: Re: PRad meeting and run tomorrow

Hola Pablo,

 we think the line to the call may have been blocked with water or/and air
leaking.   We decide to stop the procedure and warm up the system.
We are running Labview until it stops by itself.
If you can fix some issues for PC or/and Labview, please go ahead..
Thank you.

         Saludos, Tsuneo Kageya.
________________________________
From: Xiangdong Wei <xwei at jlab.org>
Sent: Wednesday, May 7, 2025 11:21 AM
To: Pablo Campero Rojas <campero at jlab.org>; Tsuneo Kageya <kageya at jlab.org>; Andrew Schick <aschick at umass.edu>; bhesha <bhesha at jlab.org>; Phillip Dobrenz <dobrenz at jlab.org>; Donald Williams <donaldw at jlab.org>
Subject: Re: PRad meeting and run tomorrow

Hi Pablo,

Thank you very much, I really appreciated it.

Best,

Xiangdong
________________________________
From: Pablo Campero Rojas <campero at jlab.org>
Sent: Wednesday, May 7, 2025 10:53 AM
To: Xiangdong Wei <xwei at jlab.org>; Tsuneo Kageya <kageya at jlab.org>; Andrew Schick <aschick at umass.edu>; bhesha <bhesha at jlab.org>; Phillip Dobrenz <dobrenz at jlab.org>; Donald Williams <donaldw at jlab.org>
Cc: Tsuneo Kageya <kageya at jlab.org>
Subject: Re: PRad meeting and run tomorrow

Hello Xiangdong,

Yes, I can help with that.
I'm writing code to log the data locally, I'm planning on testing it today.

Regards,
Pablo

________________________________
From: Xiangdong Wei <xwei at jlab.org>
Sent: Wednesday, May 7, 2025 10:27:48 AM
To: Tsuneo Kageya <kageya at jlab.org>; Andrew Schick <aschick at umass.edu>; bhesha <bhesha at jlab.org>; Phillip Dobrenz <dobrenz at jlab.org>; Donald Williams <donaldw at jlab.org>; Pablo Campero Rojas <campero at jlab.org>
Cc: Tsuneo Kageya <kageya at jlab.org>
Subject: Re: PRad meeting and run tomorrow

Gentlemen,

The control PC felt asleep last night, despite that it was set to no sleeping and no screensaver mode. The EV one bomb closed again last night, which resulted the PT-2 increased to 30 psi’s.

For today, we should try to
1. fix the window sleeping problem (Pablo, could you do that?)
2. watch cell fill P for ~2 hours,
3. slowly increase the flow rate while keeping the cell fill P below the cutoff point,
4. and to figure out a way to save the data so I can find out the cost of communication failure.

I need time to update my err talk this afternoon and upload it, I will stay in my office (I can take short calls).

Could I be excused from being at ESB this afternoon? I appreciate it.

Could the rest of us get together and make a plan SOON?

Thanks,
xiangdong

Get Outlook for iOS<https://aka.ms/o0ukef>
________________________________
From: Tsuneo Kageya <kageya at jlab.org>
Sent: Wednesday, May 7, 2025 12:27:22 AM
To: Xiangdong Wei <xwei at jlab.org>; Andrew Schick <aschick at umass.edu>; bhesha <bhesha at jlab.org>; Phillip Dobrenz <dobrenz at jlab.org>; Donald Williams <donaldw at jlab.org>; Pablo Campero Rojas <campero at jlab.org>
Cc: Tsuneo Kageya <kageya at jlab.org>
Subject: Re: PRad meeting and run tomorrow

Thank you.   A great job.

 Regards, Tsuneo Kageya.
________________________________
From: Xiangdong Wei <xwei at jlab.org>
Sent: Tuesday, May 6, 2025 10:21 PM
To: Tsuneo Kageya <kageya at jlab.org>; Andrew Schick <aschick at umass.edu>; bhesha <bhesha at jlab.org>; Phillip Dobrenz <dobrenz at jlab.org>; Donald Williams <donaldw at jlab.org>; Pablo Campero Rojas <campero at jlab.org>
Cc: Tsuneo Kageya <kageya at jlab.org>
Subject: Re: PRad meeting and run tomorrow

Gentlemen,

The labview crashed one Andrew tried to wake up the control computer windows at 8 PM. Ask the consequence, all running turbo pounds were tripped. So he called me and I could not help him to reset over the phone. I came here worked with Andrew together for a while and then we figured out how to reset everything, which included the interlock box, the ev valve control, all 3 turbo pumps, reset the flow controller to 200 cc per minute, turning on EV1 valve, and clear the communication errors. The system went back to normal 30 minutes after tripping.
we decided to turn on the heater to control the second stage temperature at 15 Kelvin. at this moment, the cell temperature is 16.1 Kelvin and the gas temperature is 35.5 Kelvin. I will leave this one running overnight.
we also turned off the screensaver. So tomorrow morning people should be able to see the active screen, I hope.

Thanks,

Xiangdong

Get Outlook for iOS<https://aka.ms/o0ukef>
________________________________
From: Tsuneo Kageya <kageya at jlab.org>
Sent: Tuesday, May 6, 2025 8:52:53 AM
To: Xiangdong Wei <xwei at jlab.org>; Andrew Schick <aschick at umass.edu>; bhesha <bhesha at jlab.org>; Phillip Dobrenz <dobrenz at jlab.org>; Donald Williams <donaldw at jlab.org>; Pablo Campero Rojas <campero at jlab.org>
Cc: Tsuneo Kageya <kageya at jlab.org>
Subject: Re: PRad meeting and run tomorrow

Hi,

 I connected the heater cable yesterday.

     Regards, Tsuneo Kageya.
________________________________
From: Tsuneo Kageya <kageya at jlab.org>
Sent: Monday, May 5, 2025 2:42 PM
To: Xiangdong Wei <xwei at jlab.org>; Andrew Schick <aschick at umass.edu>; bhesha <bhesha at jlab.org>; Phillip Dobrenz <dobrenz at jlab.org>; Donald Williams <donaldw at jlab.org>; Pablo Campero Rojas <campero at jlab.org>
Cc: Tsuneo Kageya <kageya at jlab.org>
Subject: Re: PRad meeting and run tomorrow

Hi everybody,

 Who has not read the Epas and procedure and did not sign on the Epas
list, please do so.
 When you cooldown the PRad-II target and flow He gas, please follow the
procedure included in Epas.
If you find any conflicts between the procedure and what you really experience and any comments, please write down them on the log book
and let me know.

One thing which I have to mention is that the heater cable is not connected to
target.    Please connect it.     The cable is labeled as "Heater" and it is coming
from the backside of LS336 (banana clip connections).
Thank you.

     Regards, Tsuneo Kageya.
________________________________
From: Xiangdong Wei <xwei at jlab.org>
Sent: Monday, May 5, 2025 11:25 AM
To: Tsuneo Kageya <kageya at jlab.org>; Andrew Schick <aschick at umass.edu>; bhesha <bhesha at jlab.org>; Phillip Dobrenz <dobrenz at jlab.org>; Donald Williams <donaldw at jlab.org>; Pablo Campero Rojas <campero at jlab.org>
Subject: PRad meeting and run tomorrow

Gentlemen,

The weekly meeting this afternoon is canceled due to the continuing rehearsal of ERR. Please make sure EVERYTHING is ready for flowing gas and cooking down the target, starting at 9am.

Thanks,

Xiangdong

Get Outlook for iOS<https://aka.ms/o0ukef>
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