 Friday, January 25, 2013, 15:15, Keith C Ng, Primary Beamlines, Repair, 1A triplet repair (ground fault) 
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Today: Uncovered 1A triplet cable chase and reconfigured shielding. D. Preddy will continue with diagnosing ground fault on Monday.
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Monday, January 28, 2013, 16:28, Keith C Ng, Primary Beamlines, Repair, 1A triplet repair (ground fault) 6x
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Rad survey map from last Friday (25 January) here.
Found exposed thermal switch cable in triplet service chase. |
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Tuesday, January 29, 2013, 16:28, Keith C Ng, Primary Beamlines, Repair, 1A triplet repair (ground fault)
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Restored shielding over 1A triplet chase.
Uncovered Q16 and set up RH bridge with lead blankets over Q16. |
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Wednesday, January 30, 2013, 16:46, Keith C Ng, Primary Beamlines, Repair, 1A triplet repair (ground fault)
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Cut and removed asymmetric steering cables from Q14 and 16, cables are no longer resting on magnet power bus bars.
Cut short sections left on magnet and connector block. North connector block left in place. Short cable section on magnet insulated with fiber |
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Monday, February 04, 2013, 16:04, Keith C Ng, Primary Beamlines, Repair, 1A triplet repair (ground fault)
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Restored 1A triplet shielding and removed RH shielding.
1. Moved severed asymmetric steering cable on Q14 so as not to touch the coils underneath and the cover plate above it. |
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Wednesday, January 16, 2013, 17:03, Keith C Ng, Primary Beamlines, Repair, 1A triplet repair
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Moved 18' blocks away from triplet area in preparation for uncovering triplet. Plastic laid down up stream of t2 target station for short term storage
of 6' layered blocks. |
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Friday, January 18, 2013, 14:40, Keith C Ng, Primary Beamlines, Repair, 1A triplet repair
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Completed uncovering shielding and RH setup over 1A Q14 triplet area, see photo for RH setup.
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Tuesday, January 22, 2013, 16:02, Keith C Ng, Primary Beamlines, Repair, 1A triplet repair
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1.5 day work delay due to plant group unavailable on the 21st of January. Gardner air compressor was being moved.
Today: |
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Monday, February 05, 2018, 15:40, Keith C Ng, Primary Beamlines, Repair, 1A Q15 repair.
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1.) Completed covering up 1A Q15.
2.) RH flask currently contains the 8 insulators removed from Q15. 3.6 mSv/h on contact, 40-60 uSv/h @ .5 m. Double bagged. Bag exterior was swiped
clean, inside was not checked (didn’t want to breach interior bag just to swipe components). |
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