 Tuesday, October 16, 2012, 19:50, Grant Minor, M9, Repair, M9T2 Joint Repair - Status Update 16 Oct 2012 
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| See attached. |
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Monday, October 15, 2012, 17:03, Keith C Ng, M9, Repair, M9 T2 joint repair cont.
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Today:
- Removed pins and removed indium through ring. Joint fully open at 14.5 to 15 turns of retraction mechanism.
- Did initial video inspection of T2 and Q1 flanges, some residual indium on knife surfaces, did initial scraping of T2 flange. (see videos on |
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Thursday, October 18, 2012, 08:26, Keith C Ng, M9, Repair, M9 T2 joint repair cont.
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Yesterday:
Installed indium blank off at M9 T2 joint and pumped down at 15:20 to 15:45 overnight. 1ACG7 (T2 vacuum pressure) reads between 6.0E-3mT and 2.0E-2
mT as of 8:15 today. |
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Thursday, October 18, 2012, 16:28, Keith C Ng, M9, Repair, M9 T2 joint repair cont.
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Today:
Completed leak check of M9 T2 area: joint(s) are He leak tight. Remote He lines checked as well, see attached.
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Tuesday, March 12, 2013, 16:33, Keith C Ng, M9, Maintenance, M9 T2 flange blank off, preparation
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Scraped M9 T2 flange, removed what little indium was left on flange.
- Completed two passes, some indium still remains on flange. R. Kuramoto deems this sufficient for now.
- Scraping tool did not fit properly over flange, was forced into place and had to be pried off when scraping finished. |
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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/ |
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Wednesday, April 10, 2013, 16:20, Keith C Ng, M9, Repair, M9 T2 flange blank off
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Continued with work on T2 M9 exit port and area; Vacuum started after 13:00 hours (due to vacuum pump issues at T2). He leak checked flange at 14:30,
determined to be He leak tight. Vacuum pressure as of 14:45 in T2 volume (1ACG7) was at 36mT. |
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Monday, October 22, 2012, 15:48, Keith C Ng, M9, Repair, M9 T2 clean up and shield restoration
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Today;
Restoring shielding at M9 T2 area and cleaning up RH setup.
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Wednesday, March 13, 2013, 16:21, Keith C Ng, M9, Maintenance, M9 T2 blanking off preparation
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1. Re-scraped M9 T2 flange after reviewing video of flange.
- Some indium remains on inside of counter bore of flange, indium hard to remove due to current tooling.
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Wednesday, October 24, 2012, 11:53, Keith C Ng, M9, Repair, M9 T2 blank off complete
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Shielding around m9 t2 restored as of 11:45, vacuum levels still the same since 19 October.
- Work permit returned.
- A dose record of the job is attached as a spread sheet. Total dose for all workers is 1.89 mSv for the job. |
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Friday, October 12, 2012, 15:12, Keith C Ng, M9, Repair, M9 T2 Joint Repair cont.
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Joint repair continues.
Leak Check: |
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Friday, October 19, 2012, 16:48, Keith C Ng, M9, Repair, M9 T2 Joint Repair cont.
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Today:
Cleaned up work site and removed extraneous poles and tooling. Radioactive parts stored in lead flask now located on TNF.
- Two pins, an RH bullet bolt and indium ring (tb22148) were put into lead flask for storage, flask now located on TNF. |
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Tuesday, March 26, 2013, 09:04, Keith C Ng, M9, Repair, M9 Q1Q2 void inspection
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Yesterday: did visual, video inspection and still imaging of T2 M9 Q1Q2 void. G. Morris came down to work site for visual inspection, noticed and was
concerned about a few of the shielding blocks that were "contacting" the T2 monolith. Of note are the known "crumbling blocks" directly
North and West of the T2 monolith and the pointy shielding block (2MB2, DWG# D-3399) North of the monolith which sits on top of a crumbling block. It was |
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Monday, August 10, 2020, 16:08, Keith C Ng, M9, Development, M9 Q1Q2 magnet assembly installed in pit
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The M9 Q1Q2 magnet assembly was installed in the M9 beam line today.
Attached to elog is an inspection report of the indium ring that will be used in the M9 T2 Q1 joint. |
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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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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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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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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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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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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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