19 Jun 033 Lambertson #2 Removal with Magnet Mover
19 Jun 034 F0 Vacuum Upgrade Replacement of A150, P150, P1, Tev US and Tev DS spool sections 3” and 4” diameter Electro-polished, H2 degassed beam tube Addition of Differential Pumping to limit conventional beamline gas loads Addition of TSP in Tevatron Spool sections (must maintain 1e-9 Torr to be effective)
19 Jun 035 Differential Pumping Gas load of A150, P150 and P1 lines are greater than Lamberston gas load (must also consider MI- 60 liner test results) Q(A150) = 5.76e-6 Torr*liter/(sec*cm^2) Q(P150) = 3.96e-6 Torr*liter/(sec*cm^2) Q(P1) = 4.68e-6 Torr*liter/(sec*cm^2) Q(Lam) = 5.28e-6 Torr*liter/(sec*cm^2) Factor of 2 improvement Q(Lam w/ liner) = ?
19 Jun 0311 Virtual Leak of Liner Lamination cracks should be < 1% of entire exposed surface area (Dave Harding) Perforated area 2.5% of entire liner surface area (Alex Chen) MI-60 Testing
19 Jun 0312 CuBe Liner Vacuum Prep Cleaning Distilled water heated to 110 F and ultrasonic bath Distilled water and Citranox (1%) ultrasonic bath (PH 8-9) Dry with alcohol and nitrogen Pre-bake Vacuum testing at MI-60 (RGA) In stu bake with entire F0 vacuum upgrade
19 Jun 0313 Future Considerations Use of 3” diameter beam tube contingent on aperture studies Complete vacuum system review mid July after liner vacuum testing Consider Multiwire gas load on vacuum system