Installed Q1Q2 pin drive and attempted to align it to the vacuum box. Spent majority of the day trying to align the pin drive/anchor.

- Pneumatic drive does not actuate smoothly, appears to be binding/catching, possibly due to some kind of misalignment, issues with the pneumatics. A 1" space between T1 and Q1 flanges has been set but has a slight taper, starting 1" wide on the north east side tapering down by ~1/16 (to 15/16") to the west.

- Gap has been set as a comprimise between smooth pneumatic operation and alignment of the flanges. The alignment of the flanges is independant of the axis of the vacuum box due to the front end alignment bellows.

The replacement pin drive anchor (see TB22300) for M13 Q1Q2 vacuum box lowered into initial position. The original B1 base plate was able to rock when weight was placed upon it; A concrete block was used to counterweight the base while the new pin drive was being installed. The pindrive has not been adjusted into final position.

Installed 4" indium seal at 1VM3 to IVQ4. No real problems with installation.

Removed M13 B1 magnet from beam line without issues, Q2 vacuum box is covered with bag and vacuum box "extended" with air off. Field is now 3000uSv @ 1/2m from the open vacuum box where B1 magnet was.

work continues on T1 M13 area for UCN.

- He leak checked T1 M13Q1 joint (sealed with rubber) and surrounding uncovered area, no leaks found.

- Moved back B1 jaws box enough to clear the spring eyes on the Q2 vacuum box.

• Removed and vacuumed bags of lead shot that were placed on the vacuum box between jaws box and bender magnet coils. Some loose shot fell on the floor.
• Did this by loosening the restraining screws of the vacuum box on either end of the magnet (on top only)
• Removed 2 C clamps holding the jaws box down to the magnet subframe (J. Chak and L. Lee pried clamps off)
• J. Chak pried downstream end of vacuum box to shift the jaws box by the required 1/4 inch

- Tidied work area in preperation for removing the bridge setup and to remove the B1 magnet.

- The water line to the T1(?) water cooled indium ring is leaking water near the top of the target station, water system was shut off. The leaking swage lock fitting must be replaced.

RH beam line work for UCN continues at T1.

- Attempted to scrape t1 flange, narrow scraping tool does not fit into space because of the headers on the water system of the magnet. Decided to continue installing blanking plate with rubber anyway.

- Installed blanking plate between T1 and M13Q1 with rubber.

• Q2B1 joint was closed up and pins driven down to anchor the vacuum box in place.
• Joint was opened and then blanking plate was inserted into place against T1 flange. Q1Q2 vacuum chamber was extended to preload the plate.
• The flange needed to be adjusted into place slightly and then the pins driven down to load the plate further where it then needed to be pried into position. After this the pins could be driven down completely.
• Bolt stops on the Q1 flange that brace against the magnet were seen in video inspection. Also bolt lugs like as on the M9 and M20 vacuum box were seen although without bolts present in them.

- Q2B1 joint was disconnected again. Spring eyes are still not fully clear enough to lift away B2 magnet.

T1 M13Q1Q2 work continued:

- Removed T1 Q1 indium seal ring, collapsed center vacuum box bellows using pneumatic cylinders. The bellows restraint was able to be rotated slightly so that the cylinders could be retracted. The brace/restraint bar could only be rotated until the bar made contact with the electrical connectors on Q1.

- T1 Q1 pins driven back down to anchor Q1 vacuum box.

- Separated Q2 B1 joint: Q2 vacuum box spring eyes are still partially trapped. Vacuum box cannot fully retract due to the bar from the bellows bracing/restraint contacting the field plate on Q1 magnet. The joint will have to be manually separated with some other means.

Work continues on T1 M13Q1 joint:

- Discovered some sort of vacuum box brace restricting the collapse of the vacuum box when the air cylinders were actuated. Upon closer observation the air cylinders appear to work, unsure if the "retract" and "extend" port markings work as labeled.

- The brace appears not to be removable, further investigation of this piece is required.

- It is believed the piece is two plates attached to a ring surrounding the central bellows with a bar on the top to facilitate rotation of this blocking device.

UCN T1 work continues:

- Retracted Q1 T1 pindrive, took 34.5 turns. Pins left bolted to T1 monument.

- Freed Q1 to T1 indium joint ring. Tried to collapse Q1Q2 vacuum box with pneumatic system and it did not work. Air cylinder appears to leak through the piston ie. connect air line to one port, air is heard coming through the other port with no motion.

Indium sealing ring currently left loose between T1 and T1 flanges while a method is found to collapse the vacuum box.

RH bridge has been set up over T1 to Q1Q2 area, see images for radiation survey of work area. Joint is still intact, work will commence tomorrow.

1VQ4 & 1VQ6 beamtube was installed by UCN group. RH provisonally installed aluminum indium carrier ring with no indium into joint space with clamping collar and pin drive. Joint is currently connected but not vacuum tight. Joint will be sealed with indium at a later date, tbd.

Disconnected and removed beam tube from 1VQ4, 5, 6. 

- Q6 end had transition end removed with pin drive driven into the retracted position and left behind but indium joint was still intact.

- Retracted the pin drive from Q4 end and proceeded to drive apart joint using reversed pin drive. The joint was stuck and did not come apart using the drive out mechanism. The beam tube end was then pried apart leaving some indium stuck on the knife edge of the beam tube. The indium had to be "severed" to removed the beam tube. The aluminum carrier ring was left on to the adjacent device (IVM3). The hook collar was then removed and beam tube with transition flange (v flange to 4" indium) was then fully removed at this point.

- Aluminum carrier ring was then pried off the flange of the adjacent device, IVM3. The "fin" on the carrier ring was mostly bent after this operation. Most of the indium remained on the ring. Some scraping and cleaning of the flange and knife was needed.

- The beam tube + stuck on transition flange and indium carrier ring are being stored in the vault basement. Fields were 30 µSv @ 1/2m.

- A pin drive and hook flange were left behind bagged under the staircase near the 1VQ4,5,6 area for the subsequent installation of the new beam tube section.

Link to RPG survey map of work area here: https://documents.triumf.ca/docushare/dsweb/Get/Document-86363/dspage03692340282615393127.pdf

Fields around joint were 140 µSv on the south side of the joint, 850 µSv on the north side.

Removed "suck tube" filled with active/contaminated water from top of 1A beam line blocks to meson extension hall warm cell lab. Highest activity recorded was measured at 22mSv on contact, 2000µSv @ 1/2 m. Tube was bagged and craned over to warm cell lab for temporary storage and will be dealt with at a later date. See work permit 2013-12-12-2 for more details.

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.

TSH0081 and TSH0083 were put into the void along with another unspecified steel block, see photos for details. Pictured below is shielding stand and block TSH0081 installed in place.

Pictured below is TSH0083 and a steel shielding block installed in place. The steel grey block will retain its lift eyes (ie. left in block to be covered up). Top steel block is not specified in TSH0095 and will have to be updated in that drawing to reflect changes.

Before the RH setup was torn down photos of the spring eye gaps were shot from above, see photos for details.

- Pictured on left is the East spring eye, on right is West spring eye. Last photo is of the blank off its installed in place.

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.

Blanked off T2 M9 exit port with indium seal blank off.

1. Removed temporary rubber blank off from T2 flange.

2. Installed indium blank off TB22267, assembly TB22265 into exit port.

- Blank off installed at 2.5 turns past finger tight, finger tight defined as when springs are captive but still at free length with flange pins installed.

- Finger tight position set on test jig and removed before installing into beamline (backed off 0.5 turns to enable installation of flange pins)

- Blank off installed using the same parameters as testing, tightening spring nuts 0.5 turns alternating East then West West then East (*2012 May 2, KN) until reaching 2.5 turns.

- Installation finished 14:23, installation took 0.5 hours.

- See photos for final installation

3. Leak check of blank off and installation of shielding blocks to follow

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 not certain if these shielding blocks were touching the monolith but there was no visible gap. See photos.

Also installed an aluminum sheet metal dust cover over open B1 15" flange. See photo.

Photos are located on: \\trwindata\groups\remote handling\Photos\2013\2013_m9q1q2_void

Videos are located on: \\trwindata\groups\remote handling\Videos\2013\2013_m9q1q2_inspection

Yesterday:

Did vacuum testing on MK2 8" indium blank off; installed w/indium on test stand and put under vacuum.

- After 1 turn on spring eye nuts, a soft vacuum seal was achieved but the throttle valve (old leak detector) could not be opened. Spring eye nuts were turned in half turn increments.

- A dial indicator placed on the left of the test jig showed 0.010" movement of the blank off plate within 2 minutes after vacuum was started, after 1 one turn was applied on each spring eye nut. Under vacuum this increased to 0.015" after 5 minutes.

- It was noted that the KF40 flange on the test jig contained a pinhole leak therefore threw off the results. The indium seal appeared to be vacuum leak tight (due to no or low response) when He was applied in close proximity to the flange. The KF side had an immediate response to He.

T2 M9 volume was pumped out by E. Dalla Valle.

- Done in place of actual He leak testing of rubber blank off plate.

- E. D. V. noted that the vacuum level achieved was better than the indium seal used at T2 M9. He feels there is nothing wrong with the flange due to the vacuum level.

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.

2. Installed rubber spring loaded blank off flange to prevent debris from entering M9 T2 port.

- Will be removed once Q1Q2 void is cleaned and indium blank off plate is tested and prepared for use.

3. Continued cleaning of M9 Q1Q2 void.

- Attempted to wipe residue from bottom dead center of B1 15"knife  flange.  Did not fully clean, R. Kuramoto observed a thick viscous residue, "like tar"

- Started vacuuming of M9 Q1Q2 void

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.

- Will temporarily blank off with rubber sealed blank off plate until area is cleaned of debris. Semi permanent blank off to be installed by end of week.

- See videos of flange scraping in Remote Handling group folder.