Apr 03 2024

Updates

• Fabrication
  • One additional sample electrode 30-60 was received from the shop. This sample was finished up in the shop with 600 grit sandpaper.
  • Jessica is polishing the sample piece mentioned above plus another sample received earlier. The goal is to have these pieces polished with corncob by the end of the week.
  • Machine shop expect to have the four final electrode pieces done by ~ April 10. (Two option A 16-30 deg pieces, and two of the 16-60 deg option B pieces, all made with vacuum arc re-melt 316 L SS).
  • A 24" long Teflon rod for puck manipulation during gun assembly is being made by the shop, expected to be done by ~ April 5.
• S&A R30-3 gun in LERF clean room
  • Last week the gun was surveyed and a laser launch was established collinear with the gun z-axis.
  • Preliminary checks of laser retro-reflection were made with a mirror puck
  • Work was interrupted by the CEBAF event

Schedule

R30-4 200 kV SharePoint site

Resources needed

• Labor
  • S&A
    • Week of April 8 finish R30-3 laser retro-reflection Q&A in LERF clean room
      
    • Week of May 27 gun S&A in tunnel
    • Week of June 17 laser retro-reflection
    • Week of May 6 gun assembly in LERF clean room
  • Installation
    • Week of May 27
      • Crane equipment down from ISB to injector tunnel
      • Remove R28-2 gun and set R30-4 gun in tunnel

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