MSD Machine Operations Report Summary Monday, April 10, 2023 Proton Source 1. Mechanical/Vacuum a. Linac Tank 2 vacuum has gotten slightly worse of the past few months and is being monitored 2. Fluids a. Nothing to report Main Injector/Recycler 1. Mechanical/Vacuum a. Yesterday night I:IP836 tripped. MCR reset and turned with out issues b. Saturday R:IP901D faulted off twice. MCR reset it. c. I:IP606D (RF region) faulted and reset on Friday afternoon d. Will look into IP836 (8 GeV line) today, and submit a worlist request for IP839 (and possibly 826 as well) which will not stay on 2. Fluids a. Ordering N2 bottles for MI60 magnet LCW system External Beamlines 1. Mechanical/Vacuum a. NM2 vacuum leak repair work continues 2. Fluids a. Making up MS2 and add ArCO2 bottles at MS3 today b. Muon - going to valve out the air going to the 3-way valve on the DI loop of AP-50 cavity skid. This is to troubleshoot its DI loop regulation Fluids – General 1. CUB a. Column II regeneration started Friday afternoon and worked on Saturday i. Resistivity is low at 14 MOhm and being investigated today (may be temp related and will cool down and recirculate again) ii. May valve into REM system with resistivity where it is b. REM system resistivity remains low while flowing through column III only