[Dsg-hallc_nps] Additional Work Request/DSG-NPS Meeting

[Brad Sawatzky]

I've put a couple responses inline below.  Happy to follow up on any
questions.

On Tue, 21 Jul 2020, Aaron Brown wrote:

> For my own clarification, I'm going to summarize the work requests from your
> last email:
> 
>  1. Signals cable run from the NPS to FADCs: you've started
>     procurement of the RG-58C signal cables that will go to the BNC to
>     BNC patch panel for which the parts have already been purchased.
>     Has anyone been assigned to fabricate these cables and to make
>     this patch panel?

Yes -- both procurement and assembly has been taken care of.  No work
needed on the DSG side.  I just wanted you folks to be aware of the
status in case someone else came to the DSG with questions about it.

>  2. HV connector internal to the NPS detector: DSG has been making the
>     ~1100 HV divider cables. It is my understanding that these cables
>     will run from the PMT assemblies to the inner side of an HV patch
>     panel integrated into the roof panel of the NPS chassis. Is this
>     correct?
>     - We are progressing along quite well with the cable fabrication
>     (470 of 1100 completed so far).

Sounds great.

>  3. Procure parts for the 140' external multi-conductor HV cables
>     (34 total):
>     - We will be able to take over the procurement and fabrication of
>       these long cables. Brian, George, and Marc will be able to
>       handle the parts procurement,and Mindy will be able to handle
>       the fabrication. Do you have any information on the SAMTEC
>       connectors and the NPS Chassis?

I've attached a couple documents that should have the details you need.

NPS_Cables_Transparents.pdf
- See p.6 -- p.8 for the SAMTEC part numbers, and the pin map from the
  Radiall connector <--> SAMTEC connector group.

NPS_frame_connector_layout.pdf
- A simple render of the patch-panel(s) on the exterior of the NPS
  chassis.

NPS-cabling-inside-chassis_25Jun2019.pdf
- CAD render of the interior of the NPS detector chassis


> We've discussed this internally, and pending Patrizia's approval, we
> are ready to move forward with procurement and fabrication.
> Also, since neither you, nor Jack can make it to the meeting tomorrow
> I've gone ahead and canceled it and will reschedule.

Sounds good.

-- Brad

-- 
Brad Sawatzky, PhD <brads at jlab.org>  -<>-  Jefferson Lab / Hall C / C111
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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