[Pansophy] SNS PPU mag shield acronyms, travelers

[Gary Cheng]

Mike and pansophy team,

I am drafting PPU mag shield receiving inspection travelers. We have a 
complex situation regarding the mag shields:
1. There is a set of spare inner mag shields made to SNS HB CM drawings 
and repaired by Amuneal.
2. There is a set of spare outer mag shields made to a combination of 
SNS HB CM drawings and SNS PPU drawings
3. We will receive 6 sets of inner mag shields made to SNS PPU drawings
4. We will receive 6 sets of outer mag shields made to SNS PPU drawings
5. We will receive 7 sets of outer mag shield supply extensions made to 
SNS PPU drawings
6. We will receive 7 sets of outer mag shield return extensions made to 
SNS PPU drawings
7. There will be extra mag shield parts, some are large, that will not 
be used for SNS PPU cryomodules. Most of these were sent from ORNL.

On serialization,
1. I am not sure how the spare inner and outer mag shields are 
serialized. Likely the parts/subassemblies are serialized and engraved.  
The fact that the spares are now made to a mix of SNS HB and SNS PPU 
drawings will make precisely following SRF's new serialization policy 
difficult, unless we create new top assembly drawings for the spare 
inner & outer mag shields. *--- any suggestion on serialization of the 
spare shields, at assembly/kit level? Shall we give them S/N 007 and use 
SNS HB's inner & outer shield assy drawing numbers and make notes in 
travelers to state that they are SNS spares? *
2. All new SNS PPU inner & outer magnetic shields are serialized from 
001 to 006.
3. All new outer mag shield extensions are serialized from 001 to 007.

On acronyms and travelers,
1. Currently we assigned acronyms IMAG and OMAG for the inner and outer 
mag shields, respectively.
2. INV travelers for IMAG and OMAG exist. *--- We need to think about 
how to use them to inventory the first 6 types of shields mentioned above. *
3. To avoid adding more acronyms for mag shields, I will use IMAG to 
create the inner magnetic shields inspection traveler, which will be 
used in inspection of both the spare and new inner magnetic shields. And 
I will use OMAG in the outer magnetic shield inspection traveler, which 
will include receiving inspections of the outer mag shields, supply 
extensions and return extensions.
4. I will give instructions on how to match the outer magnetic shields 
with supply and return extensions in OMAG INSP traveler. The match-ups 
will be only for receiving inspection purpose. Inventory may issue any 
combinations of outer + supply extension + return extension to production.

Sorry for the long message. Comments & suggestions are welcome.

Thanks,
Gary

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