Booster Bias Supply Upgrade
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Transcript of Booster Bias Supply Upgrade
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Booster Bias Supply Upgrade
April 2, 2014
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• First prototype was started in December• The back half of the supply was totally gutted
• Transformer • Interphase reactor• SCR/heat sink assemblies• All water hoses
• Relocated various chassis and supplies A few need re-wiring
• Assembled as much as possible to finalize layout• Huge relief when it was verified that everything was going
to fit without a major overhaul
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Slow going on first supply Not worked on full time Many delays with materials and parts Many discussions and decisions on final layout
High priority on ease of future maintenance Second gutting for final hole drilling, documenting
and installation of plated parts. Made “doubles” of many parts
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◦Now have two techs from EE Support (80%) High current copper bus bars
Need 10 of these which are very labor intensive Flexible copper straps
Need 120 of these Fairly tedious to assemble, solder and drill
SCR/heat sink assemblies Need 20 of these
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◦Next bias supply rehab: Much faster! Layout is finalized and documented. Have 80% of parts and material on hand
Few more in-house machine shop jobs Off-the-shelf electrical parts
EE Support techs working on labor intensive assemblies
~2 month turn-around on next supply Training full-time worker Ordering remaining parts Remaining supplies have solid wall separating front and
back, possibly creating a few problems ~1 month turn-around thereafter
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