[Pansophy] Issue with Cav HE-R017

[Ashley Mitchell]

Apologies, I missed a few cavities when filtering results, the "Rejected cavities" tab has been updated.

- Ashley
________________________________
From: Ashley Mitchell <ashleya at jlab.org>
Sent: Thursday, September 12, 2024 1:19 PM
To: John Vennekate <hannesv at jlab.org>; Adam Grabowski <adamg at jlab.org>
Cc: pansophy at jlab.org <pansophy at jlab.org>; Tony Reilly <areilly at jlab.org>; Mike Bevins <mbevins at jlab.org>
Subject: Re: Issue with Cav HE-R017

John,

I pulled all the rejected cavities and datamined processing and added comments in the last column.  Could you review these other cavities too and make changes to the NCRs if necessary please? A couple more seem to have been approved by the CTB at some point to go into CMs and just need the disposition updated.  If you'd prefer to meet and review these together, let me know and I can find time.

Thanks!

FYI:
Further info on each cavity can be found if you go to the Datamine area in Pansophy from the main menu, proj HE, CAVSN and then select the cavity to see its entire history.
[cid:8cb80625-0663-4112-a21a-9e7a788dc419]

- Ashley
________________________________
From: Ashley Mitchell <ashleya at jlab.org>
Sent: Wednesday, September 11, 2024 4:25 PM
To: John Vennekate <hannesv at jlab.org>; Adam Grabowski <adamg at jlab.org>
Cc: pansophy at jlab.org <pansophy at jlab.org>; Tony Reilly <areilly at jlab.org>; Mike Bevins <mbevins at jlab.org>
Subject: Re: Issue with Cav HE-R017

John,

Thanks, I have also been refreshing my memory today. This is what we decided to do for the cavities that failed but might be used if needed (to close open NCRs), the disposition just needed to be changed when we decided to use them. I will try to keep a better eye on the closed NCRs too, we don’t want this to be shipped to a customer with a rejected disposition.  I think there are several cavities where this occurred, if you know the numbers and if they went into strings, we should update those too.

Thanks for the help updating the disposition.

Best,



-Ashley
________________________________
From: John Vennekate <hannesv at jlab.org>
Sent: Wednesday, September 11, 2024 4:12:40 PM
To: Ashley Mitchell <ashleya at jlab.org>; Adam Grabowski <adamg at jlab.org>
Cc: pansophy at jlab.org <pansophy at jlab.org>; Tony Reilly <areilly at jlab.org>; Mike Bevins <mbevins at jlab.org>
Subject: RE: Issue with Cav HE-R017


Thanks Ashley,



Good catch. I tried to comprehend what happened back then but could not quite make sense of it. The intermediate disposition had already the request to put the cavity on hold until further notice. And in a nutshell that’s exactly what happened i.e. the CTB accepted it as a marginal cavity for the latest string on July 2nd of this year. I don’t know what drove me to close it with a final disposition. Maybe an eager QM wanted me to improve the closed NCR statistics 😉

I’ll edit the final disposition once Pansophy has opened it again.



Best,

John V



From: Ashley Mitchell <ashleya at jlab.org>
Sent: Wednesday, September 11, 2024 09:10
To: Adam Grabowski <adamg at jlab.org>; John Vennekate <hannesv at jlab.org>
Cc: pansophy at jlab.org; Tony Reilly <areilly at jlab.org>; Mike Bevins <mbevins at jlab.org>
Subject: Issue with Cav HE-R017



Morning,



It was brought to my attention that cavity HE-R017 was final dispositioned as "reject" in NCR 120 in Jan 2022, initial comment: Cavity unable to reach required gradient 23 MV/m & final comment: cavity put on hold by CTB.   In July 2024, it was leak checked and put in a string J-31.  What was done to the cavity to correct the issue that caused the rejection and where is this documented? Or if the disposition is now "use-as-is", the NCR needs to be re-opened and the disposition needs to be updated.



Cavity history (recent to old) since reject disposition:

[cid:image001.png at 01DB0457.392259E0]



Thank you for your attention in getting this corrected expeditiously,



Ashley Mitchell (She/Her/Hers)

Quality Engineer

SNS-PPU Project Coordinator/CAM

Cell: 757-434-2905
[https://www.jlab.org/div_dept/dir_off/public_affairs/logo/JLabEmailSig.png]
600 Kelvin Dr.
Suite 8, MS 55H
Newport News, VA 23606

www.jlab.org<http://www.jlab.org>


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