 Thursday, March 07, 2013, 08:35, Keith C Ng, M9, Repair, M9 T2 flange blank off
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Work on blank off of M9 T2 started: Cleared away blocks making up bagging bunker. R. Kuramoto took some initial photos of the M9 T2 area post Q1Q2 removal;
See Remote Handling network drive for photos.
G. Morris posted photos of M9 Q1Q2 just after removal from beam line 1A. Click here for link: http://trshare.triumf.ca/~gmorris/BL1A/M9/2013.3.5/ |
Tuesday, March 05, 2013, 14:15, Keith C Ng, M9, Maintenance, M9 Q1, 2 removal 7x
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Removed M9 Q1 Q2 from beam line 1A via crane and transferred from beam line to radiation waste storage.
Magnet craned out of position in front of T2 monolith and then placed into bunker next to work site.
- Bunker pre-lined with plastic enough to envelope magnet. |
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Monday, March 04, 2013, 16:48, Keith C Ng, M9, Maintenance, M9 Q1 Q2 removal, preparation 6x
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Preparing for M9 Q1,2 move:
1. Re-arranged/organized cables on top of magnet.
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Friday, March 01, 2013, 15:28, Keith C Ng, M9, Maintenance, Radadioactive Waste Pit Organizing
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Successfully stacked old m20 q2 q2 magnet assembly on top of old M9 Q1 Q2 magnet and M11 septum magnet. See photos.
- Done to create room for current m9 Q1,2 magnet.
- Used 6' remote handling bridge on north end of open pit for shielding. |
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Wednesday, February 27, 2013, 16:15, Keith C Ng, M9, Maintenance, M9 Q1 Q2 removal, rad waste pit prep
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Radioactive waste pit uncovered, red barrel with unknown contents taken out for assessment. R. Ralea from RPG determined barrel was too active to be
removed from pit and therefore replaced into storage pit.
M. Kinakin took the aluminum samples from the two indium test rings and the stainless steel bolt taken from Q1 for analysis. Will return the stainless |
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Monday, February 25, 2013, 16:37, Keith C Ng, M9, Maintenance, M9 Q1 Q2 removal, Q2 seal disassembly 7x
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Removed Q2 15" indium seal ring, discovered seal contained rubber on both sides instead of indium.
- Some kind of oil residue seen at the bottom of the sealing ring and inside of the Q2 vacuum box. (Note: Oil residue was from downstream vacuum
roughing pumps. They were connected when T2 M9 joint was leaking. Oil got into the vacuum pump back streamed into the beam line.) |
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Friday, February 22, 2013, 17:27, Keith C Ng, M9, Repair, M9 Q1 Q2 removal, Q2 joint dissassembly
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M9 Q2 15" pin drive was removed and disconnected.
- Pin drive retention screw had to be completely removed to be able to remove pin drive completely.
- Had to make tools to remove pin drive and retention screw, see photos. |
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Thursday, February 21, 2013, 17:02, Keith C Ng, M9, Maintenance, M9 Q1 Q2 removal, joint dissassembly
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CUALCW system water loss was not from 1A triplet. Q15 Q16 held static pressure at 90 psi since 9 am until 17:00. Holding with very minimal change in
pressure. Q14 reading 64 psi as of 17:00. D. Preddy informs all other systems leak tight.
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Tuesday, February 19, 2013, 16:46, Keith C Ng, M9, Maintenance, M9 Q1 Q2 removal, preparation
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Determined M9 Q2 service stand supply connector was slowly leaking.
- Ball valve to the supply was leaking through allowing trace amounts of water through.
- System was bled again and pressure relieved, leak appears to have stopped. |
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Monday, February 18, 2013, 16:24, Keith C Ng, M9, Repair, M9 Q1 Q2 removal, electrical and water disconnected
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Today, re-arranged electrical wiring on Q1 Q2 magnet away from Q2 indium joint. Cable bundles were bundled as neatly as possible.
- One of the klixon thermal switch wires broke off while the cable bundles were being organized. See photo.
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Friday, February 15, 2013, 14:29, Keith C Ng, M9, Maintenance, M9 Q1 Q2 removal, preparation
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Beam lines group purged M9 Q1 Q2 magnets and water lines in preparation of disconnecting water services to those magnets, done in morning.
- Note: Q15 protueus paddle wheel was replaced after finding it was worn
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Thursday, February 14, 2013, 15:43, Keith C Ng, M9, Maintenance, M9 Q1 Q2 removal, preparation
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Removed 8" rubber test rings from M9 T2 joint. Rings moved to RH warm cell. Radiation levels were 70 µSv on contact 1.7 µSv @ 1/2 m.
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Wednesday, February 13, 2013, 15:49, Keith C Ng, M9, Maintenance, M9 Q1 Q2 removal, preparation
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Local and remote leak checks on M9 T2 area were done today to confirm leak; Leak was still present at T2 M9 joint. M9 Q1 and Q2 power supply leads were
disconnected (C. Yee). Next task is to find the ground fault on the Q1 magnet.
Indium one piece blank off plate (TB22267) for blanking off assembly (TB22265) was submitted into shop today. |
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Friday, February 08, 2013, 15:31, Keith C Ng, M9, Repair, M9 Q1 Q2 removal, site prepration
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Completed remote handling/shielding setup over T2 M9, see photos for setup.
- Rad levels at 16' above Q2 were 1.2 mSv/h. Shielding was built up to 20' level, same as the opposite side to minimize exposure.
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Thursday, February 07, 2013, 16:02, Keith C Ng, M9, Repair, M9 Q1 Q2 removal, site prepration
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Started work on removing M9 Q1 Q2 magnets; area clean up and preparation, removing shielding above Q1 and Q2 and remote handling setup over magnet (moving
blocks).
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Wednesday, February 06, 2013, 16:33, Keith C Ng, Primary Beamlines, Maintenance, t2 monolith measurements
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Beam lines took measurements of top of T2 using Leica Total Station. Required no crane activities over 1A blocks.
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Tuesday, February 05, 2013, 16:12, Keith C Ng, Primary Beamlines, Maintenance, 1A triplet repair (ground fault) (Completed)
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Today: D. Preddy completed another power test on 1A Q14, 15, 16 after all iron/steel shielding was restored. Magnet power and steering supplies were
checked and O.K.ed. R. Kuramoto deems triplet repair job completed.
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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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Friday, February 01, 2013, 14:15, Keith C Ng, Primary Beamlines, Maintenance, M9 Q1 Q2; storage pit assessment
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Uncovered radioactive waste storage pit to see contents. Assessing viability of moving contents inside to facilitate storage of M9 Q1 Q2 magnet. See
below for some photos.
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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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