 Monday, June 15, 2015, 14:14, David Wang, South Hot-Cell, Standard Operation, , , Target Hall Scheduled Activities April 07 - July 21 2015 
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Weekly update Target Hall schedule 2015-06-15. See attachment 1,2
2015-06-19, Update the schedule on the end of the week. See attachment 3,4 |
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Friday, June 19, 2015, 11:43, David Wang, ITW, Repair, TM1, , ITW external water leak on dump circuit 6x
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There was an external water leak in ITW during the last beam running time. The leak started after the shielding blocks transfer(May 22). It cause a constantly
water level drop on S-tank(0.5 "/day average). Today , after the blocks are moved , the leak source has been found. Water seeped through a fitting
on ITW dump circuit pressure gauge. The leak water slowly flow around the TM1 on the tank flange. most of them are dried out, but left some stain on dump |
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Friday, June 19, 2015, 11:52, David Wang, ITE, Standard Operation, TM4, SiC #31, 5 Shielding blocks have been transferred from ITW to ITE.
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| 5 shielding blocks have been transferred from ITW to ITE. The ITE is configured to take proton beam. |
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Wednesday, June 24, 2015, 13:49, David Wang, South Hot-Cell, Repair, TM2, , TM2 new source tray vacuum leak check.
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| All water blocks seals and joints have been leak checked. No leak has been found on any of them. See attachment |
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Friday, June 26, 2015, 08:27, David Wang, Conditioning Station, Standard Operation, TM2, , Target Hall Scheduled Activities April 07 - July 24 2015
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Update the Target hall Schedule after some changes on TM2 refurbishment. See attachment 1,2
2015-06-30, updated the schedule after some jobs have been finished before Canada day. See attachment 3,4. |
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Friday, June 26, 2015, 14:33, David Wang, Conditioning Station, Standard Operation, TM2, , TM2 have been moved from SHC to CS
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| Bill and I mover TM2 from SHC to CS. The move is smooth. I connected the CS vacuum system after the move, and started the roughing. |
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Monday, June 29, 2015, 10:51, David Wang, Conditioning Station, Repair, TM2, , leak on TM2 side panel
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There is an air to vacuum leak on TM2 service cap side panel which we moved out during the TM2 wiring job. The CS pumps are stopped now. The CS will
be vented soon. The seal on this panel has to been changed.
2016-06-30. The o-ring seal on this panel(PNG1 and steerers) is replaced and leak checked. No leak now. |
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Tuesday, June 30, 2015, 15:41, David Wang, ITW, Standard Operation, TM1, , TM1 was disconnected in ITW this morning.
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| TM1 was disconnected in ITW this morning. The ITW was vented with argon last night. |
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Tuesday, June 30, 2015, 15:53, David Wang, Conditioning Station, Development, TM2, , leak on TM2 at CS
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I leak checked TM2 at CS this afternoon which including air to vacuum check on service cap and helium pressure test on water lines. There is a
small leak on water line R ,U (COIL1) during the helium pressure test.. Below 20 psi helium, there is no leak on it. But , once the helium pressure is
increased over 20 psi, it showed up on Leak Detector. At 60 psi helium, the leak rate is 9.4xE-9 atm.cc/sec. For detail information, See attachment. |
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Friday, July 03, 2015, 09:41, David Wang, Conditioning Station, Standard Operation, TM2, , Target Hall Scheduled Activities April 07 - July 24 2015
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Updated the schedule before the weekend 2015-07-03. See attachment 1,2
Updated the schedule according to present TM2 refurbishment process. See attachment 3,4 |
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Tuesday, July 07, 2015, 12:12, David Wang, Conditioning Station, Repair, , , CS TP1S replacement
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| CS TP1S had been replaced with a new TP-301 pump this morning.The old pump was broken last week. |
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Wednesday, July 08, 2015, 14:05, David Wang, South Hot-Cell, Repair, TM2, , leak check coil line(R,U) on TM2 at SHC
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Chad and I leak checked coil line(R,U) on TM2 at SHC yesterday. The leak detector was pumped down to 0.0Xe-9 atm.cc/sec before the check. Chad sprayed
helium on the soldering joints connecting the cooling copper lines to the small holding blocks for the coil terminal(R,U). After sprayed helium 2
seconds, I saw the leak rate on LD started to climbed up. The highest leak rate is 4.0xE-8 atm.cc/sec. It is a very positive response. We waited the leak |
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Wednesday, July 08, 2015, 14:24, David Wang, South Hot-Cell, Repair, TM2, , TM2 pressure bubble test on RU water blocks.
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July-06, 2015. Chad , Grant and I did the bubble test on R,U water blocks. We suspected the leak on the R,U circuit is from C seals on the water blocks
so we did this test first. I applied both air and helium to R,U circuit , Chad applied snoop soap on the R,U water blocks.The air and helium pressure was
increased from 40 psi to 90 psi Max step by step.Chad did not see any bubbles on the water blocks during the test. Since we did not find the leak source, |
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Thursday, July 09, 2015, 14:02, David Wang, Conditioning Station, Development, TM1, , TM1 is pumping down at CS
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TM1 and CS vacuum system are connected. All turbo-pumps are started. The new TP1S works fine also. The pumping down looks good so far. During the
TM1 and CS roughing down time, Joe .M noticed a Rn-220 level surge up in TH . Then,the Rn220 level slowly dropped back. Anders suspected this Rn-220
surging is related to the TM1 roughing down at CS. We decided we will stop the pumps , vent the CS , and roughing again tomorrow. During the same |
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Wednesday, July 15, 2015, 11:18, David Wang, South Hot-Cell, Repair, TM2, , leak check coil line(R,U) on TM2 at SHC
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Chad and I leak checked the coil 1 circuit(R,U) after rebuilt coil line is installed on TM2 source tray. The pumping down on the circuit is very quick
and smooth. The LD base lake rate 0.0xE-9 atm.cc/sec. Base pressure0.0xE-4 torr.
Chad sprayed lots helium on the R( coil 1+)and U(coil 1 -) water blocks. During 1 minute waiting time, there is no any response on LD. The |
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Thursday, July 16, 2015, 07:38, David Wang, ITE, Standard Operation, , , Target Hall Scheduled Activities April 07 - August 07 2015
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Update the TH schedule according to present TM2 refurbishment process. See attachments 1,2
2015-07-20 , Update the TH schedule after some changes on TM2 and TM4 arrangement. See attachments 3,4 |
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Tuesday, July 21, 2015, 12:29, David Wang, ITE, Maintenance, , , target pit Hepa filter
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Target pit Hepa filter has been replaced today. There is 500 counts on swipe which is taken inside of the replaced filter. The field measurement on the
filter wood box is less than 0.5 usv/hr on contact. Right now,The outlets of the old filter are sealed with thick plastic and duct tape. The whole
filter is wrapped with plastic sheet and tape. It has been moved to SHC ante room. It will be moved out of there by Tony.N soon with RPG help. |
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Tuesday, July 21, 2015, 12:38, David Wang, ITW, Repair, , , ITW external water leak on dump circuit has been fixed.
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| The leaking 1/8 NPT(M)-1/4NPT(F) adapter on the ITW dump circuit is replaced. |
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Thursday, July 23, 2015, 10:23, David Wang, ITE, Standard Operation, , , Target Hall Scheduled Activities April 07 - August 019 2015
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| Update Target Hall schedule after the changing on TM2 process. See attachment 1,2 |
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Friday, July 24, 2015, 10:04, David Wang, ITE, Standard Operation, , , 5 Shielding blocks have been moved from ITE to block storage area.
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| Dan and I moved 5 shielding blocks from ITE to block storage area. The move is smooth. |
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