[Dsg-rich] Fw: Move of RICH N2 backup banks to gas shed

[Tyler Lemon]

From: Bob Miller <rmiller at jlab.org>
Sent: Friday, June 21, 2019 9:25 AM
To: Tyler Lemon
Subject: Re: Move of RICH N2 backup banks to gas shed


Tyler,


See if the RICH can use argon for a purge gas in case the N2 is disrupted.


Bob



On 6/21/2019 9:23 AM, Tyler Lemon wrote:
Hello Bob and Denny,

Since the N2 backup banks for RICH are now empty, we've submitted PRs for four additional banks (two to replace the empties, two to keep on hand since the lead time is few weeks).

Once of the things that has come up in discussions among DSG, INFN collaborators, and Dr. Rossi, is what would happen if the backup banks run out and Hall B is inaccessible or the crane and equipment to move the banks are unavailable. In this situation, RICH would eventually go without N2.

To prevent this, the banks could be moved to the Hall B Gas Shed so they can be more accessible. There is already a spare gas line that is not in use that runs from the gas shed to the forward carriage, so it seems the work would be relatively small to relocate the banks.

Are there any other considerations/costs/work needed to relocate the backup banks outside of Hall B?

Best regards,
Tyler

--
Bob Miller
Hall B Lead Engineer
Jefferson Lab
757 822-9586


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