[Dsg-hallc_nps] [EXTERNAL] Re: CAEN Onsite Maintenance

[Aaron Brown]

Hi Brad,

So, the high voltage cables terminate with Radiall connectors.
These connectors have been potted by DSG to prevent the pins from becoming unseated and the cables were tested again to verify that potting didn't alter the performance of the cables.
The connectors that are mounted on the CAEN high voltage boards still need to be potted.
This was work that we started planning just before the pandemic, but never got the chance to complete.

The hv modules will most likely be fine if the connectors aren't potted, but to be on the safe side we decided that they should all be potted if possible.
What we don't want is to have the pins come unseated during the experiment and then someone has to open up a module to reseat the pins.

-- Aaron
________________________________
From: Brad Sawatzky <brads at jlab.org>
Sent: Monday, January 9, 2023 1:28 PM
To: Robert Michaels <rom at jlab.org>
Cc: Aaron Brown <ambrown at jlab.org>; Dsg-hallc_nps at jlab.org <dsg-hallc_nps at jlab.org>
Subject: [EXTERNAL] Re: [Dsg-hallc_nps] CAEN Onsite Maintenance

Hi Bob, Aaron,

My understanding is that all of the 'NPS' high density connectors
were tested and fixed by the DSG some time back (couple years ago)
as part of the testing/QA process we did on the CAEN equipment.

I think that is what Aaron noted in the email(?)

Aaron, are there fixes to NPS HV hardware that are still pending?

-- Brad

On Mon, 09 Jan 2023, Robert Michaels via Dsg-hallc_nps wrote:

> As far as I'm concerned yes, and the sooner the better.  It's a
> priority to fix that.
>
> Thank you for organizing this.
> Bob
> Get Outlook for iOS
>
> ----------------------------------------------------------------------------
>

> From: Dsg-hallc_nps <dsg-hallc_nps-bounces at jlab.org> on behalf of Aaron
> Brown via Dsg-hallc_nps <dsg-hallc_nps at jlab.org>
> Sent: Monday, January 9, 2023 12:35:34 PM
> To: Dsg-hallc_nps at jlab.org <dsg-hallc_nps at jlab.org>
> Subject: [Dsg-hallc_nps] Fw: [EXTERNAL] CAEN Onsite Maintenance
>
>
> ----------------------------------------------------------------------------
>

> From: Greg Kibilko <greg at setechsales.com>
> Sent: Monday, January 9, 2023 12:31 PM
> To: Aaron Brown <ambrown at jlab.org>; Brad Sawatzky <brads at jlab.org>; Robert
> Michaels <rom at jlab.org>
> Cc: Tyler Lemon <tlemon at jlab.org>
> Subject: Re: [EXTERNAL] CAEN Onsite Maintenance
>
> Thank you Aaron.
>
> Hello Brad and Bob,
>
> As Aaron mentioned, we plan to be onsite to correct any lingering issues
> that may exist with the connectors on the A7030TN purchased before the
> pandemic hit.  While we are there it makes sense to address any other
> outstanding issues with the CAEN Mainframe HV systems.  Are there any other
> issues you'd like us to address or resolve?  If so we'll take this
> opportunity to prepare.
>
> Kind regards,
> Greg
>
> On 1/9/2023 12:23 PM, Aaron Brown wrote:
>
>   Hi Brad and Bob,
>   I'm forwarding a message received from Greg Kibilko regarding CAEN
>   representatives coming on-site to do maintenance work on some of the high
>   voltage modules.
>   He proposes two dates for the start of this work (March 6^th or March
>   13th).
>   Would either of these dates work?
>   Just as a reminder, the work that needs to be done is that the module
>   mounted connectors need to be potted to prevent the pins from becoming
>   unseated.
>   The connectors for the cables have already been potted by DSG.
>   Let me know if either of these dates will work or if we need to come up
>   with some other time frame.
>   Thanks,
>   Aaron
>
> ----------------------------------------------------------------------------
>
>   From: Greg Kibilko <greg at setechsales.com>
>   Sent: Monday, January 9, 2023 10:55 AM
>   To: Aaron Brown <ambrown at jlab.org>
>   Cc: Tyler Lemon <tlemon at jlab.org>
>   Subject: [EXTERNAL] CAEN Onsite Maintenance
>
>   Hi Aaron,
>
>   Happy New Year!  I hope you guys had a chance to get a little downtime
>   during the holidays.  We managed a little time off, but now everyone is
>   back in the office and I'm thinking it might be a good time to try to
>   settle on dates for our onsite maintenance.
>
>   We intend to address the pin issues for your A7030TN, and then we also
>   want to look at any A7235 or A7435 HV boards in the halls.  Based on our
>   records there are probably around 60 of those boards, but I think most of
>   them are probably in Hall B and Hall D.  Could you check if you have any
>   A7235 or A7435?
>   I understand that the machine is down beginning in March so I'm thinking
>   we could arrive either on either March 6th or March 13th (both Mondays).
>   As for the duration, we're still not sure but we expect it will require at
>   least 1 week onsite, if not a bit more.  Do you have a preference between
>   those weeks?
>
>   I look forward to hearing back.
>
>   Cheers,
>   Greg
>
>   --
>   Greg Kibilko
>   SETS - SE Technical Sales, Inc.
>   112 Tyra Lane
>   Townville, SC 29689
>   P: (864) 356-2606
>   CAEN Products
>   CAEN SyS Products & Solutions
>   CAEN Technologies
>
--
Brad Sawatzky (he/him), PhD <brads at jlab.org> -<>- Jefferson Lab/SciComp/F272
Ph: 757-269-5947  -<>-  Fax: 757-269-5235  -<>- Pager: brads-page at jlab.org
The most exciting phrase to hear in science, the one that heralds new
  discoveries, is not "Eureka!" but "That's funny..."   -- Isaac Asimov
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