[Pansophy] Issue with Cav HE-R017

[John Vennekate]

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

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