[Dsg-halla_magnets] [Dsg-internal] FYI Fw: Request for additional DSG help with Hall A CLEO magnet

Mark Jones jones at jlab.org
Wed Jun 22 16:41:05 EDT 2022


Brian,
             I talked with Jessie. Since he has reduced manpower, the Hall A techs can only support step 5 of mechanical
work and cleaning. So we would need support for step 1-4.
It would be good to meet with Whit Seay and myself.

Cheers,
            Mark

________________________________
From: Brian Eng <beng at jlab.org>
Sent: Tuesday, June 21, 2022 5:47 PM
To: Amrit Yegneswaran <yeg at jlab.org>; dsg-halla_magnets at jlab.org <dsg-halla_magnets at jlab.org>; dsg-internal <dsg-internal at jlab.org>; Mark Jones <jones at jlab.org>
Cc: Patrizia Rossi <rossi at jlab.org>
Subject: Re: [Dsg-internal] FYI Fw: Request for additional DSG help with Hall A CLEO magnet

Hi Mark,

This is what I had understood the work would roughly look like:

1. Hall techs do any testing required by Steve prior to any work, e.g. make sure nothing is shorted to the turret.
2. Hall techs labels all the wires (basically putting 2 labels on each wire on each side of a cut)
3. Once labeled DSG would verify available slack to see if extensions are required for reconnection or not
4. Hall techs cuts the wires at the large flange in order to separate it from the turret
5. Hall techs do whatever mechanical work/cleaning/etc on the turret
6. In parallel with 5 DSG would fix any bent pins and any other cleanup/modifications on the wires/connectors
7. Once steps 5 & 6 are complete DSG would join the cut wires with solder splices and heat shrink.

If we need to have a meeting to go over anything or if I've misunderstood the tasks let me know.

Thanks
Brian

________________________________
From: Dsg-internal <dsg-internal-bounces at jlab.org> on behalf of Amrit Yegneswaran <yeg at jlab.org>
Sent: Tuesday, June 21, 2022 8:30 AM
To: dsg-halla_magnets at jlab.org <dsg-halla_magnets at jlab.org>; dsg-internal <dsg-internal at jlab.org>; Mark Jones <jones at jlab.org>
Cc: Patrizia Rossi <rossi at jlab.org>
Subject: [Dsg-internal] FYI Fw: Request for additional DSG help with Hall A CLEO magnet

hi mark
we've been discussing the task
brian will get back to you today
amrit
________________________________
From: Mark Jones <jones at jlab.org>
Sent: Tuesday, June 21, 2022 8:19 AM
To: Amrit Yegneswaran <yeg at jlab.org>
Cc: Steven Lassiter <lassiter at jlab.org>; Whit Seay <wseay at jlab.org>
Subject: Request for additional DSG help with Hall A CLEO magnet

Amrit,
       We need additional hardware help from the DSG for the CLEO magnet test. We have pressure to start the test
by Sept 1st ,so we have an urgency to get this additional work done. Steve Lassiter has informally ask for help with this work.
       Working with Whit Seay and the Hall A techs, we need help to  develop a method
and assist with the removal of six feed  thru connectors (each connector has three ten pin
connectors on it for a total of 180 pins but not all are wired)  on the CLEO service turret can.
I have attached pictures of the connectors.
             Plan should include labeling and documenting all cables and wiring prior to removal
from the vacuum feed thru, removal of the wires from the feed thru and then re-connecting the wires back to the feed thru connectors once the mechanical work is done on the current lead turret can.
DSG would be responsible for the re-connection and testing of the wires and connections after re-connection.
         If you have time to do this work, it would be appreciated.

Cheers,
     Mark

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