MSD Machine Operations Report Summary Wednesday, April 5, 2023 Proton Source 1. Mechanical/Vacuum a. Nothing to report 2. Fluids a. Nothing to report Main Injector/Recycler 1. Mechanical/Vacuum a. I:IP839 in the 8 GeV line won’t stay on and looking into the power supply this morning 2. Fluids a. Nothing to report External Beamlines 1. Mechanical/Vacuum a. NM2 vacuum work continues i. Waiting on replacement spool pieces to be fabricated ii. Investigating roughing pump power 2. Fluids a. Pressure testing today in Muon M4 on the HRS supply and return lines Fluids – General 1. CUB a. Increased flow though Column III yesterday b. The resistivity came up high enough for Muon campus to run beam. However, it's still low for SY to resume operations. It is 4.7 MOhm-cm at F1—they can run at 5 MOhm-cm c. Waiting to get an OK from ISD to regenerate column III