 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 |
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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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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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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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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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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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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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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Tuesday, April 09, 2013, 16:41, Keith C Ng, M9, Maintenance, T2 M9 exit port blank off
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Blanked off T2 M9 exit port with indium seal blank off.
1. Removed temporary rubber blank off from T2 flange. |
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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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Thursday, April 11, 2013, 15:43, Keith C Ng, M9, Repair, T2 M9 exit port temporary shielding 10x
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Installed shielding stand (TSH0094) for T2 M9 exit port as per drawing TSH0095; three steel blocks in total were lowered into the T2 M9 void. See photos.
Started to tear down RH setup after shielding was lowered into place.
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Monday, March 30, 2015, 16:10, Keith C Ng, M9, Repair, T2 area uncovering
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Started to uncover and create work space around T2 M9 area, setup is mostly complete. Some misc items to be craned into position. RH set up is mostly
to do He leak checking of 1A beamline due to vacuum leak somewhere in the area around T2, bridge on B1 side of M9 has not been set yet. |
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Wednesday, April 01, 2015, 16:07, Keith C Ng, M9, Maintenance, T2 M9 area work
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1) Block and bridge setup is mostly complete for T2 M9 sighting job. Waiting on approving drawing TB22322 in order to continue with installing sighting
equipment.
2) He leak checked upstream of T2 and surrounding area. Appears to be a small leak at the M9T2 exit port through the blanking plate seal. Mode |
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Tuesday, April 07, 2015, 08:27, Keith C Ng, M9, Development, m9 t2 alignment job
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Work completed for Thursday:
1) Shielding filler blocks removed from M9Q1Q2 hole. Highest field was 5mSv/h coming from TSH0081 on the end facing the monolith. Blocks and frame
had 1000-1200 CPM of contamination. |
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Tuesday, April 07, 2015, 16:09, Keith C Ng, M9, Development, m9 t2 alignment job
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work to prepare for installation of alignment jigs on T2M9 and M9B1 continues:
1) Vented T2 volume and removed M9 blanking plate. Volume was not fully vented so plate was stuck and had to be pried off slightly. Around 2 turns
of the nuts were required to undo the spring eyes, this is likely less than the total number of turns that were used to tighten the assembly since the |
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Wednesday, April 08, 2015, 14:18, Keith C Ng, M9, Development, m9 t2 alignment job 12x
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1) Visual inspection of T2 M9 flange: no obvious indium deposits on T2 flange knife edge seen, left over indium from before 2013 is still present on
counter bore. See screen captures. Screen captures show state of flange after removing blanking plate, no cleaning was performed after removal.
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Thursday, April 09, 2015, 17:20, Keith C Ng, M9, Development, m9 t2 alignment job
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1) Vented T2 and removed rubber seal blanking plate, vacuum level appeared to be at normal operating ranges prior to the indium seal developing a small
leak.
2) Removed B1 dust cover, cover was stuck to B1 flange due to oil residue. Oil residue is believed to be from a vacuum pump being turned on in |
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Friday, April 10, 2015, 16:25, Keith C Ng, M9, Development, m9 t2 alignment job
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Continued with installation of target jigs:
1) Craned in equipment for alignment group.
2) Attempted to install target jig over B1 flange; |
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Tuesday, April 14, 2015, 08:31, Keith C Ng, M9, Development, m9 t2 alignment job
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Yesterday:
1) Addressed mounting issue with the 15" alignment jig: removed material from the spring eye to make the hole from 1" to 0.75" when
bottomed out. This would cause the spring eye and mounting eyelets on B1 to have 0.226" of starting overlap, vs the original 0.024" negative |
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Thursday, April 16, 2015, 09:17, Keith C Ng, M9, Development, m9 t2 alignment job 9x
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Yesterday (Apr 15):
1) Installed TB22265 on to M9 exit port at 18:48 with no vacuum and left over night. Done per 2013 installation procedure (1.5 turns of the preload
nut, after pins are engaged and springs are at free length) |
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