 Tuesday, February 25, 2014, 06:53, David Wang, South Hot-Cell, Repair, TM2, , Leak check on TM2 tube heater (+) water line with blank off(C-seal) installed on WB.
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Chad and I did the leak check on TM2 tube heater (+) water line with blank off and C-seal installed on WB at South Hot Cell.The
line was easy to pump down to 0.0xE-9atm.cc/sec and 0.0XE-4 torr on leak detector. Chad flushed lot helium around the water block (10 sec spray). No response
had been found on leak detector. |
Tuesday, February 25, 2014, 10:00, David Wang, Conditioning Station, Repair, TM2, , helium pressure test on TM2 tube heater (+) water line with blank off(C-seal) installed on WB. 10x
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I did the helium pressure test on TM2 tube heater (+) water line with blank off(C-seal) installed on water block at CS.The leak
detector was hooked directly to the top of the module this time. So base leak rate and base pressure were at the bottom scale on LD. 30 -80 psi helium
was applied to the D lines(both side) with10 psi increasing each time. There is no any tiny response hasbeen found during the test. The lines |
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Thursday, March 06, 2014, 06:28, David Wang, Conditioning Station, Maintenance, TM1, , TM1 had been moved from silo to CS
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TM1 has been successfully moved from silo to CS. The CS vacuum system is connected to TM1. Turbo pumps on TM1 and CS have been started yesterday
afternoon . The starting of TM1 turbos was easy. The pumping down over night is good so far. |
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Thursday, March 06, 2014, 06:58, David Wang, ITE, Maintenance, TM3, , ITE vacuum and leak check on ITE BL2A window flange.
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ITE and TM3 Turbo pumps have been started successfully yesterday. The vacuum reading on all ITE high vacuum gauges are at low E-6 range after one night
pumping down which are good so far. There is no any sign of leak on BL2A window and the flange seal on ITE side. Yesterday afternoon, Ron , Edi ,and I
did a leak check on the ITE BL2A window flange(2aTunnel side). The leak detector was hooked onto BL2A in tunnel. Ron and I supplied helium from TH |
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Thursday, March 06, 2014, 12:59, David Wang, Conditioning Station, Maintenance, TM1, , Restart TM1 and CS TPs
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| Restarted TM1 and CS turbo pumps after the power off. Everything is fine . |
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Thursday, March 06, 2014, 14:12, David Wang, Conditioning Station, Standard Operation, TM1, , TM1 air to vacuum and water lines leak check at CS. 8x
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TM1 air to vacuum and water lines leak check at CS are finished this afternoon. The leak detector is hooked directly to TM1 service cap so the
base LR at LD is 0.0xE-9 atm.cc/sec. I sprayed helium to all air to vacuum seal on the service cap, also applied 70 psi to all water lines(except HS) for
2 minutes each. There is no any tiny response had been found on LD. So All TM1 water lines(except HS) and air to vacuum seals are leak free. The HS circuit |
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Friday, March 07, 2014, 12:45, David Wang, ITE, Standard Operation, TM3, , TM3 and ITE air to vacuum leak check and TM3 water lines helium test.
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With TM3 located in ITE, All air to vacuum seals on ITE primary and secondary vacuum vessel have been leak checked with leak detector hooked
directly on the TM3 service cap.The base LR :00xE-9atm.cc/sec. The ITE IG1 was 1.6xE-6 torr which was good. No leak has been found during the checking.Also,
the TM3 water lines(except HS) had been pressurized with 70 psi helium on each for 2 minutes. There was no response during the test. The ITE and |
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Tuesday, March 11, 2014, 10:47, Travis Cave, ITE, Repair, , , entrance module move
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| ITE entrance module has been moved from the east station to the south east silo. |
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Wednesday, March 12, 2014, 16:33, Keith C Ng, ITE, Repair, , , 2A3 window removal and replacement
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prep'ed area for work:
- removed shield plug from window clamp area
- inspected clamp from tunnel side and from top of target station: video recorder was not working, will try again tomorrow. |
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Thursday, March 13, 2014, 07:35, David Wang, ITW, Standard Operation, TM4, , TM4 and ITW turbo pumps have been started
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| I connected ITW vacuum system to TM4. TM4 and ITW turbo pumps have been started successfully. The pumping down is good so far. |
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Thursday, March 13, 2014, 16:23, Keith C Ng, ITE, Repair, , , 2a3 window - inspection
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Video inspected 2a3 window joint this morning.
Screenshots from video showing debris forming around aluminum cradle and brown/red dust on top of beam pipe.
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Monday, March 17, 2014, 15:39, Keith C Ng, ITE, Repair, , , 2a3 window - prep and clean
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Cleaned top of the ITE vacuum flange and top of window clamp. Attempted to clean the bellows/beam pipe through the wall, mostly dust and small particles.
When cleaning bottom of the wall penetration we picked up a stone/fragment and the vacuum stopped. Appears to be a rock of some kind. 800cpm.
Videos on \\trwindata\groups\remote handling\Videos\2014\2014_2A3window folder, videos 3 and 4. |
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Tuesday, March 18, 2014, 16:01, Keith C Ng, ITE, Repair, , , 2a3 window - prep and clean
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Continued with vacuuming inside wall penetration to remove debris. Changed filter bag in nilfisk vacuum, left old filter in place however vacuum continues
to stall after >5min use. Vacuum gets quite warm before self shutting off. Debris seems to be falling back down on to joint if vacuum is turned off.
Took some screenshots of video showing removed debris and rust(?) on beam pipe. Video located on remote handling group folder. |
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Wednesday, March 19, 2014, 15:46, David Wang, ITW, Standard Operation, TM4, , TM4 and ITE air to vacuum leak check and TM4 water lines helium test. 7x
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With TM4 located in ITW, All air to vacuum seals on ITW primary and secondary vacuum vessels have been leak checked with leak detector
hooked directly onto the TM4 service cap.The base LR :00xE-9atm.cc/sec. The ITW IG1 was 1.16xE-6 torr which was good. No leak has been found during the
checking.Also, the TM4 water lines(except HS) had been pressurized with 70 psi helium on each for 2 minutes. There was no response during the test. |
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Wednesday, March 19, 2014, 16:48, Keith C Ng, ITE, Repair, , , 2a3 window - beam tube removal 11x
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Today:
1) Vaccumed top and around clamp. Disconnected clamp from flanges and removed from beam line. Currently bagged and stored in metal pail next to
target pit area. Clamp is 500 µSv @ 1/2 m. |
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Friday, March 21, 2014, 16:49, Keith C Ng, ITE, Repair, , , 2a3 window - tank flange inspection
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Today:
1) Cleaned flange with methanol and cotton glove, appears to be clean.
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Friday, April 04, 2014, 14:59, Keith C Ng, ITE, Maintenance, , , measurement of new beam tube section
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R. Kuramoto and A. Laxdal measured the distance from the 2A tunnel to the tank flange of ITE. The new fabricated beam pipe with bellows was used to gauge
the distance to the tank flange; The flange face of the beam tube was butted up to the tank flange and the beam tube was marked at the plane of the wall.
A metal rod was used to gauge the distance to the tank face using the same method. |
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Friday, April 04, 2014, 16:59, Anders Mjos, ITW, Development, , , Flow meters installed on Heat Shield and Coil water return
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David W. has installed two SST Proteus flow meters, model OV7006FTA32, on ITW Heat Shield and Coil. The flow meters are connected to a power supply and
a data logger in the electrical room.
The Heat Shield flow meter has SN 00278112 and is on the Black wire pairs and connected to CH3 & CH4 on the logger. |
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Wednesday, April 09, 2014, 11:10, David Wang, South Hot-Cell, Standard Operation, TM3, , TM3 heat shield circuit leack check at SHC
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This Monday morning, Chad and I leak checked heat shielding circuit on TM3 with new target installed. The base LR on LD :0.0xE-9 atm.cc/sec, base pressure
0.0xE-4 torr. Chad sprayed helium twice on the VCR joints. No leak has been found. The circuit will be pressured with helium at CS. |
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Friday, April 11, 2014, 11:35, David Wang, Conditioning Station, Standard Operation, TM3, , Helium pressure test on TM3 HS water line with new Ta target. at CS 6x
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| The helium pressure test on TM3 HS water line with new Ta target is finished at CS. The circuit is leak tight.. No any response on LD. See pictures. |
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