 Thursday, December 12, 2013, 14:21, Keith C Ng, Primary Beamlines, Repair, T2 suck tube active/contaminated water removal
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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. |
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Monday, January 30, 2017, 12:01, Keith C Ng, M9, Development, T2 leak check with vac group
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Week of Jan 23 to 27:
- Uncovered shielding around T2 M9 area. |
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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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Friday, February 17, 2017, 13:33, Keith C Ng, M9, Development, T2 M9 vacuum
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Leak checked the blank off at T2 M9 exit port with Dimo Y. and Edi D.V. (Vac Group) and they confirm it is leak tight. Blank off installed on the 15th,
pumping started on morning of the 16th and leak checked today in the morning on the 17th.
Starting to clean up work area. |
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Wednesday, March 20, 2013, 08:59, Keith C Ng, Primary Beamlines, Development, T2 M9 off beamline activities
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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 |
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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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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Friday, August 07, 2020, 16:18, Keith C Ng, M9, Maintenance, T2 M9 exit port and B1 flange cleaning
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Today we attempted to scrape remnant indium from T2 M9 exit port and clean B1 knife flange for the new magnet. Report of todays activities attached to
the elog. |
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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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Wednesday, February 01, 2017, 15:34, Keith C Ng, M9, Development, T2 M9 Setup
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Finished setting up work area around T2 M9 front end.
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Tuesday, February 14, 2017, 16:08, Keith C Ng, M9, Development, T2 M9 2015 vs 2017 comparison
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| Attached a quick comparison of M9 exit port flanges WRT indium remnants: looks roughly the same. Will attempt to install blanking plate tomorrow morning. |
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Thursday, February 05, 2015, 16:06, Keith C Ng, Primary Beamlines, Development, T1 Q1Q2 blank off work
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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. |
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Tuesday, February 10, 2015, 16:15, Keith C Ng, Primary Beamlines, Development, T1 Q1Q2 blank off work
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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. |
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Friday, February 06, 2015, 16:01, Keith C Ng, Primary Beamlines, Development, T1 M13Q1Q2 blank off work
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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. |
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Wednesday, February 11, 2015, 16:46, Keith C Ng, Primary Beamlines, Development, T1 M13Q1Q2 blank off work
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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. |
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Thursday, February 12, 2015, 14:29, Keith C Ng, Primary Beamlines, Development, T1 M13Q1Q2 blank off work
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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.
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Wednesday, February 25, 2015, 14:57, Keith C Ng, Primary Beamlines, Development, T1 M13Q1Q2 blank off work
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Blanking plate with indium between T1 and M13Q1 flange has been installed, joint will be He leak checked tomorrow. Vac group informs that pumping of
T1 volume will start this afternoon going over night.
- The spring eyes on Q2 vacuum box are ~0.2" above the pin supports, the gap changes by 0.05" between open and closed positions. |
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Friday, February 03, 2017, 14:57, Keith C Ng, M9, Development, Removing shield blocks and leak check results.
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Removed temporary shielding blocks from M9 hole and placed in temporary bunker. Capped with 18' shielding block. Blank off ready to be removed and target
jigs ready to be installed, weather permitting.
Raw leak check results from vacuum group attached as pdf. |
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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, January 31, 2018, 15:28, Keith C Ng, Primary Beamlines, Repair, Q15 repair
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Beamlines has changed out another 2 insulators on Q15 after discovering two additional leaks. Insulators #2 & #4 were replaced. One of them failed
on installation (broken ceramic?) and was replaced by another stocked replacement. Magnet was pressure tested and now enegerized as part of power
testing. Doug P. expects repairs to be complete and to cover up the area by tomorrow. |
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