Difference between revisions of "Apr 03 2024"

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(Created page with "==Updates== * Fabrication ** Received two more cathode front end 16/30 samples from machine shop. These samples will be polished using sandpaper to remove machining marks fro...")
 
 
(2 intermediate revisions by the same user not shown)
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* Fabrication
 
* Fabrication
** Received two more cathode front end 16/30 samples from machine shop. These samples will be polished using sandpaper to remove machining marks from cone prior to barrel polishing.
+
** 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==
 
==Schedule==
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* Labor
 
* Labor
 
** S&A
 
** S&A
 +
*** Week of April 8 finish R30-3 laser retro-reflection Q&A in LERF clean room<br  />
 +
*** 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
 
** Installation
 
+
*** Week of May 27
 +
**** Crane equipment down from ISB to injector tunnel
 +
**** Remove R28-2 gun and set R30-4 gun in tunnel
  
 
=<br  />=
 
=<br  />=
 
[https://wiki.jlab.org/ciswiki/index.php/200_kV_Polarized_Gun Return to 200 kV Gun page]
 
[https://wiki.jlab.org/ciswiki/index.php/200_kV_Polarized_Gun Return to 200 kV Gun page]

Latest revision as of 08:56, 3 April 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


Return to 200 kV Gun page