 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; |
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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Friday, April 17, 2015, 15:11, Keith C Ng, M9, Development, m9 t2 alignment job 6x
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Today: Restored filler shielding in T2 M9 Q1Q2 hole.
- Blocks marked with beam direction on this installation. Active faces point toward target monument.
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Thursday, March 15, 2018, 15:48, Keith C Ng, M9, Maintenance, m9 t2 alignment job
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Blank off removed this morning, video recorded the T2 flange,B1 flange and B1 vacuum box interior. Blank off is 150 uSv/h @ .5m, 3 mSv/h on contact at
the spring eye ears. Not swiped yet, not tagged. Currently tucked between an 18' shield block and the ME27 block.
Waiting for beam lines to install the target spheres on the target jigs, expecting to install them tomorrow. |
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Monday, February 24, 2020, 15:13, Keith C Ng, M9, Repair, m9 q1q2 repair laser tracker shoot
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Beamlines shot the position of the M9 T2 port and B1 flange for setting the M9 test stand flanges
today. We removed the target jigs after this was done. |
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Tuesday, March 13, 2018, 15:36, Keith C Ng, M9, Standard Operation, m9 alignment work
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Set up shielding canyon for M9 laser tracker job.
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Tuesday, February 14, 2012, 16:29, Keith C Ng, M20, Repair, m20 q1 q2 repair
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Warm cell reconfigured for water leak repair at coil termination. Radiation surveys done. M20 Q1 ready for removal of insulators.
Attached photo of warm cell as of Tuesday morning. |
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Thursday, February 16, 2012, 08:08, Keith C Ng, M20, Repair, m20 q1 q2 repair
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| Insulators # 6,7,8 removed from Q1 headers late afternoon by C Ballard. Ready for removal and re-brazing of #7 joint some time today. |
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Thursday, February 16, 2012, 16:22, Keith C Ng, M20, Repair, m20 q1 q2 repair
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Old #7 coil fitting removed, replaced and re-brazed today by M Good. Insulators ready to go back on to magnet coils to be pressure checked.
Image P1020013.JPG shows #7 coil fitting before removal. Heat shielding in the form of small aluminum sheets were installed to protect the magnet
and electrical wiring. |
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Friday, February 17, 2012, 15:35, Keith C Ng, M20, Repair, m20 q1 q2 repair
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Reinstalled ceramic insulators #6 7 8 to Q1 magnet by C Ballard. #6 and 8 went on with no issues. The copper tubing on insulator #7 had to be bent to
match the new position of the re-brazed #7 fitting. This may have been due to the removal of the inner and outer conductors (the two copper plates that
clamp the two coils together) during yesterdays repair which shifted the position of the coil. See photos. |
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Tuesday, September 24, 2019, 14:37, Keith C Ng, Primary Beamlines, Standard Operation, lead pig radiation survey
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Surveyed contents of storage flask located at TNF. The lid was lifted off roughly 12" up and a pole monitor was swept over the opening. The fields
of the combined items in the flask were 9.84 mSv/h at 12-24". Extrapolated, the field is approximately 3.7 mSv/h at 1/2 m.
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Wednesday, March 08, 2017, 16:05, Keith C Ng, Primary Beamlines, Repair, collimator joint repair
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Started uncovering the area above the T2 to Q13 joint:
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Thursday, March 16, 2017, 15:50, Keith C Ng, Primary Beamlines, Repair, collimator b transition to t2
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On Monday found leaking joint was the ring directly downstream of T2. Vacuum group has been spraying Vacseal (http://www.vacseal.net/Pages/default.aspx)
sealant over the last 3 days attempting to get it in between the flanges and have partial vacuum to draw in the fluid. Seven sprays have been completed
as of March 16th. |
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Thursday, June 30, 2011, 16:58, John Wong, Primary Beamlines, Repair, blah blah blah
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| dfdfdfdfdf |
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Thursday, October 24, 2019, 14:41, Keith C Ng, Primary Beamlines, Maintenance, annotated drawing of 1A Q15 cooling headers
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Annotated drawing of TBP0425D attempting to capture the repairs of 1A Q15 triplet magnet ceramic insulator/coils over the years.
Note that the file contains embedded comments visible only if opening the file in adobe acrobat reader. |
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Thursday, March 19, 2020, 15:42, Keith C Ng, Primary Beamlines, Development, Vault beamline beam position monitor
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The Beam Position Monitor between 1VB1 and 1VM3 has been installed. The indium joints are leak tight, however the V flanges are leaking slightly. The
leak is small enough to still be able to run beam.
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Thursday, February 18, 2016, 16:34, Keith C Ng, Primary Beamlines, Development, Vault beam line 4V disassembly
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Disconnected all 4V beamline joints. Parts for indium joints removed except for the Q1 to downstream monitor box and monitor upstream to Q2 due to access
issues (no space for ingress). Removed pin drive and collars currently piled on top of the beam line stands near the concrete shielding block on the north
side of the vault. These need to be sorted for storage as waste or spares. Indium ring carriers were all bagged and left in the area waiting for a storage |
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Tuesday, February 03, 2015, 16:35, Keith C Ng, Primary Beamlines, Development, UCN T1 shutdown work
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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.
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Wednesday, February 04, 2015, 16:12, Keith C Ng, Primary Beamlines, Development, UCN T1 shutdown work
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UCN T1 work continues:
- Retracted Q1 T1 pindrive, took 34.5 turns. Pins left bolted to T1 monument.
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