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Subject: sPHENIX discussion of the superconducting solenoid

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From: "Yip, Kin" <kinyip AT bnl.gov>
To: "O'Connor, Eric" <eoconnor1 AT bnl.gov>, "sphenix-magnet-l AT lists.bnl.gov" <sphenix-magnet-l AT lists.bnl.gov>
Cc: "Pisani, Robert" <pisani AT bnl.gov>
Subject: [Sphenix-magnet-l] oil dripping from Cryo roughing pumps ??
Date: Fri, 3 Feb 2023 19:27:02 +0000

Hi,

Stefan Bathe typed me a sentence (in our Google doc of Operations Board) :

“Found mineral oil dripping out from in between outer HCal sectors at HCal bottom center.”

A few engineers gathered together including Pisani have investigated. Since nobody else has oil around,

they suspect that it’s from your roughing pumps for the Cryo system of the Magnet (on the upper platform) ?

Can you please help check ???

Kin

[Sphenix-magnet-l] oil dripping from Cryo roughing pumps ??, Yip, Kin, 02/03/2023