[Pansophy] SNS PPU Cold Mass 01 D3's SN and SNType

[Mike Dickey]

Hi Gary,

The intention of the serialization procedure is to provide a format for vendors to mark fabricated parts that JLab procures.  The part number, part revision , and serial number are separate fields.

The serial number listed below PPU-01, is the serial number for the first SNSPPU cryomodule.  This is the number that will appear in the serial number selection box.

Let me know if you have any questions.

Mike Dickey
SRF Inventory Technician
Jefferson Lab
12000 Jefferson Ave
Newport News, VA 23606
(757) 269-7755

From: Matt Marchlik <marchlik at jlab.org>
Sent: Wednesday, August 11, 2021 10:25 AM
To: Gary Cheng <cheng at jlab.org>; Jared Martin <jared at jlab.org>; Naeem Huque <huque at jlab.org>; John Fischer <fischer at jlab.org>
Cc: Ed Daly <edaly at jlab.org>; Jacob Harris <jharris at jlab.org>; pansophy <pansophy at jlab.org>; srfinv at jlab.org
Subject: Re: SNS PPU Cold Mass 01 D3's SN and SNType

Hi Gary,

D36 covers the tophat bellows cuff issue in general, so I wouldn't expect it to list the tophat bellows SN. We should expect to see this D3 repeated for the next 7 CM assemblies. May we keep the current SN of PPU-01 and use the correct one for the remaining 7 assemblies or can D3-36 be administratively unresolved so I can change it?

Thanks,
Matt

________________________________
From: Gary Cheng <cheng at jlab.org<mailto:cheng at jlab.org>>
Sent: Wednesday, August 11, 2021 10:05 AM
To: Jared Martin <jared at jlab.org<mailto:jared at jlab.org>>; Matt Marchlik <marchlik at jlab.org<mailto:marchlik at jlab.org>>; Naeem Huque <huque at jlab.org<mailto:huque at jlab.org>>; John Fischer <fischer at jlab.org<mailto:fischer at jlab.org>>
Cc: Ed Daly <edaly at jlab.org<mailto:edaly at jlab.org>>; Jacob Harris <jharris at jlab.org<mailto:jharris at jlab.org>>; pansophy <pansophy at jlab.org<mailto:pansophy at jlab.org>>; srfinv at jlab.org<mailto:srfinv at jlab.org> <srfinv at jlab.org<mailto:srfinv at jlab.org>>
Subject: SNS PPU Cold Mass 01 D3's SN and SNType

All,

The recently released D3 33 and 36 for PPU cold mass 01 have the same SN: PPU-01 and SNType: ID. These don't appear correct to me.

SRF spec/procedure PR-P-007 (attached) defines the format of S/Ns. So, to me, the SN for cold mass 01 should be 104211500-A002-A-001.
As to the SNType, CMASSN should be used.

The two specific D3 #33 & #36 address two issues associated with two types of parts, the G-10 isolators and FPC bellows, respectively. If a D3 is intended to address an issue with one certain part, e.g. only one of the four FPC bellows, then I think the D3 should use the SN for that specific bellows and SNType should be what we created for the FPC bellows.

Comments are welcome.

Gary
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