[Pansophy] Inspection Traveler

[Pashupati Dhakal]

Naeem
No concern for RF, we just need access of two feedthrough which are outside the tank.

Pashupati


From: Naeem Huque <huque at jlab.org>
Sent: Thursday, November 5, 2020 11:04 AM
To: Kurt Macha <macha at jlab.org>; Pashupati Dhakal <dhakal at jlab.org>
Cc: Ed Daly <edaly at jlab.org>; pansophy <pansophy at jlab.org>
Subject: Re: Inspection Traveler

Hi Kurt,

Let's think about the overall length. The shell will need to be machined in order to fit between the dishes; what is the original length of the shell, and does this represent the largest acceptable distance between the dishes? Or are there also weld preps which would further decrease the maximum length? This will will set the upper bound for the overall cavity length. The lower bound is a bit tougher as it would just be a matter of cutting the HVs down to size until they fit. Is there a maximum length that can be taken off the HV shells to make them fit? If so, then that would be the lower bound.

Pashupati, for RF purposes, is there a minimum overall cavity length (minus the end groups) which would be a cause for concern? The cavities should have passed RF incoming inspection by this stage

Thanks,
Naeem
________________________________
From: Kurt Macha <macha at jlab.org<mailto:macha at jlab.org>>
Sent: Thursday, November 5, 2020 10:20 AM
To: Pashupati Dhakal <dhakal at jlab.org<mailto:dhakal at jlab.org>>; Naeem Huque <huque at jlab.org<mailto:huque at jlab.org>>
Cc: Ed Daly <edaly at jlab.org<mailto:edaly at jlab.org>>; pansophy <pansophy at jlab.org<mailto:pansophy at jlab.org>>
Subject: Re: Inspection Traveler

Pashupati,

I edited your traveler to add traveler tolerances for the end flange counter bores.  I also suggested an overall cavity length traveler tolerance.  This one may need others to weigh in.

This should help a lot to reduce NCR's.  A good thing!  Thank you

Kurt
________________________________
From: Pashupati Dhakal <dhakal at jlab.org<mailto:dhakal at jlab.org>>
Sent: Thursday, November 5, 2020 9:40 AM
To: Naeem Huque <huque at jlab.org<mailto:huque at jlab.org>>; Kurt Macha <macha at jlab.org<mailto:macha at jlab.org>>
Cc: Ed Daly <edaly at jlab.org<mailto:edaly at jlab.org>>; pansophy <pansophy at jlab.org<mailto:pansophy at jlab.org>>
Subject: Inspection Traveler


Hi Naeem and Kurt

Please find R2 traveler. Let Pansophy team know when ready.



Best,



Pashupati Dhakal, PhD

Staff Scientist II

Jefferson Lab, SRF R&D

600 Kelvin Dr

Suite 8

Newport News, VA 23606

Ph: 757-269-7470


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