I installed 8 new bolts(3/8-16 UNC x1.25  STL) on the ITE TP3. The ITE TP3 replacement job is done. Everything is connected back to the pump. and it is ready for starting.

TM#4 with UC#8 has been moved from the south hot cell to the east target station.

I connected TM4 in ITE. All turbo pumps have been started and wok fine including new TP3. Everything is good so far.

I moved 5 shielding blocks to ITE. The ITE is configured to take proton beam.

5 SHIELDING BLOCKS HAD BEEN MOVED OUT OF ITE.AIR SAMPLE AND SWIPED FIRST BLOCK AND ITE PIT.NOTHING HAD BEEN FOUND ON ALPHA MONITOR AND OTHER TWO MONITORS.

I DISCONNECTED TM4 IN ITE. ALL WATER LINES HAD BEEN PURGED OUT WITH PRESSURE AIR.

TM#4 with UC#8 has been moved from the east target station to the south hot cell.

Travis and I removed 4 shielding blocks located on top of pre-seperator  in TH. This is a job for ITE harp 9 re-installation after it  is repaired . The blocks move are successful.

TM#3 has been moved from the silo to the east target station.

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  to the helium test line(located in  ITE pit) which  we have on ITE BL2A window flange.   The helium test line end nozzle is just located under  the bottom of the 2A window flange. Edi was in BL2A tunnel checking the leak detector. We supplies 10- 15 psi helium 3 times to the test line. Each time for 10 seconds. The helium flow was checked twice and they were good. The LD base LR was 2.2xE-5 atm.cc/sec, After 70 seconds , The leak rate on LD was increased to 5.3 xE-5 atm.cc/sec. The leak rate reading  recovered after 20seconds. There is no obviously conclusion where the leak is. At that moment, Ron said, he and Edi would like to do  some further leak check  in 2A tunnel,and I went back to my job.

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 TM3 are good on leak checking.See attachment pictures

TM#3 with no target has been moved from the east target station to the south west silo.

ITE entrance module has been moved from the east station to the south east silo.

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.

- corrosion seen on beam pipe cradles, see photos. corrosion also seen on beampipe, clamp and vacuum tank. will try to vaccuum loose rust tomorrow.

note: gamma spec of rust, white powder from RPG located in \\trwindata\groups\remote handling\Documents\2014\2A3 Window folder (added pdfs as attachments 2014 mar 4)

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.

Inspection video can be seen in its entirety at \\trwindata\groups\remote handling\Videos\2014\2014_2A3window

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.

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.

Will attempt to remove clamp tomorrow.

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.

2) Removed 2A3 window from beam line. Pried apart joint from top of target station using pole tool. Window is 95 mSv o.c. 5000 µSv @ 1/2 m. Currently stored in a metal shield & covered with lead blanket infront of spent target vault.

3) Did preliminary clean of tank side flange with cotton glove. See videos in RH group folder. A mark still remains on flange.

4) Installed dust cover over tank flange.

5) Removed old leaking beam tube + support from wall penetration. Currently stored in 2A tunnel, both pieces are bagged. 500 µSv @1/2m, 12000 µSv o.c. Took 2 vials/samples of the deposits inside the plastic piping surrounding the beam tube supports. Material appears to be crystalline and moist.

Today:

1) Cleaned flange with methanol and cotton glove, appears to be clean.

2) Installed new beam tube and cradle into wall penetration, cradle was setup same as previous cradle (which is now removed). On advancing into position, the flange on the flexible bellows appears to get stuck on the spigot of the fixed tank flange. Removed and measured slot, is undersize (.373-.374), will re-machine slot for spigot.

3) On visual inspection, ITE tank flange appears to be warped in a location consistent with the clamping area of the window clamp. Further investigation is required.

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.

From the inside of the tunnel wall:

- To tank flange: 45 5/16"

- To ITE vacuum tank face: 49"

See attached PDF.