 Thursday, April 14, 2016, 12:56, David Wang, ITW, Standard Operation, TM1, , 5 shielding blocks have been moved to ITW.
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The ITW is configured to take proton beam. |
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Monday, May 16, 2016, 11:16, David Wang, ITW, Standard Operation, TM1, , ITW, TM1 turbo-pumps are swithched off
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I let isac opp switched off ITW turbo-pumps. The argon vent valve in electrical room is opened. The ITW argon venting will be started soon. |
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Tuesday, May 17, 2016, 14:15, Travis Cave, ITW, Standard Operation, TM1, UC#15, module moved
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TM#1 with UC#15 was moved back to the west station due to alpha concerns. |
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Wednesday, May 25, 2016, 10:57, Travis Cave, ITW, Standard Operation, TM2, Ta#48, module moved
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TM#2 with Ta#48 has been moved from conditioning station to the west target station. |
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Wednesday, May 25, 2016, 14:08, David Wang, ITW, Standard Operation, TM2, Ta#48, TM2 has been connected in ITW
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TM2 has been connected in ITW by Dan.M and David.W. All turbo-pumps have been started. Everything is good so fine. |
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Wednesday, July 06, 2016, 07:03, David Wang, ITW, Standard Operation, TM2, , TM2 was connected in ITW.
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TM2 was disconnected in ITW and moved to SHC. |
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Tuesday, July 12, 2016, 09:59, Travis Cave, ITW, Standard Operation, TM2, SiC#33, module moved
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TM#2 with SiC#33 has been moved from the conditioning station to the west target station. |
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Tuesday, July 12, 2016, 12:40, David Wang, ITW, Standard Operation, TM2, , TM2 has been connected in ITW
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All turbo-pumps are started. Everything is good so far. |
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Wednesday, August 24, 2016, 10:41, David Wang, ITW, Standard Operation, TM2, , TM2 was disconnected in ITW yesterday.
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TM2 was disconnected in ITW yesterday and moved to SHC. |
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Tuesday, August 30, 2016, 10:35, Travis Cave, ITW, Standard Operation, TM2, Ta#49, module moved
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TM#2 with Ta#49 has been moved to the west target station from the conditioning station. |
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Tuesday, August 30, 2016, 13:17, David Wang, ITW, Standard Operation, TM2, , TM2 has been connected at ITW
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ITW turbo pumps have been started. |
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Tuesday, September 06, 2016, 10:05, David Wang, ITW, Standard Operation, TM2, , 5 Shielding blocks have been transferred from ITE to ITW.
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5shielding blocks have been transferred from ITE to ITE. ITW is configured to take proton beam. |
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Tuesday, October 11, 2016, 10:36, Travis Cave, ITW, Standard Operation, TM2, Ta#49, module moved
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TM#2 with Ta#49 has been moved from the west target station to the south hot cell. |
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Wednesday, October 12, 2016, 10:00, David Wang, ITW, Standard Operation, TM2, , TM2 was disconnected at ITW
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TM2 was disconnected at ITW. 3 water circuits in ITW gave been looped to keep 75 GPM water flow to ITW. HS line was purged at HS. RPG got the water sample. |
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Tuesday, October 25, 2016, 15:10, David Wang, ITW, Standard Operation, TM2, , TM2 has been connected at ITW
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All turbo pumps are started. Two gas valves for Febiad run are opened. Pumping down is good so far. |
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Tuesday, November 29, 2016, 12:57, David Wang, ITW, Standard Operation, TM2, , TM2 is connected in ITW
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All turbo pumps are started. Water system and water signals have been checked. Pumping down on ITW and TM2 is good so far. |
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Tuesday, November 29, 2016, 14:50, Travis Cave, ITW, Standard Operation, TM2, UC#18, module moved
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TM#2 with UC#18 has been moved to ITW from the conditioning station. |
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Saturday, December 03, 2016, 10:01, David Wang, ITW, Repair, TM2, , venting ITW and TM2 with argon.
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A short between TM2 EE and bias is produced yesterday during tube heater ramp up. Alex asked for an argon venting on ITW to see if the problem could be solved by venting and pumping down yesterday. I set up argon venting system in electrical room and started the venting at 8:30 AM this morning. It will take 5 hours to vent the ITW to 760 torr(mechanical gauge reading). The venting system pressure is set as 2 torr. A pressure relieve valve is installed into ITW venting line to prevent station over venting. The argon bottle valve in electrical room will be closed by isac opps after 5 hours venting. |
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Monday, December 05, 2016, 10:10, David Wang, ITW, Standard Operation, TM2, , Five shielding blocks have been transferred from ITE to ITW.
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The ITW is configured to take proton beam. |
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Thursday, January 12, 2017, 14:24, David Wang, ITW, Standard Operation, TM2, , ITW primary and secondary vacuum vessel winter shut down leak check.
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TM2 is located in ITW for this leak check. Leak detector is installed between ITW BV2s as before. LD base leak rate 0.0XE-9atm.cc/sec, base pressure 0.0XE-4 Torr. First , I leak checked dump module top flange seal which a small leak was found in last year winter shut down. This time,all ITW turbo-pumps cooling fans are switched off during the check. Lots helium are sprayed around the dump module top flange this time. I did not see any response on LD. The check is repeated 3 times. The results are same. There is no leak has been found on ITW dump module top flange seal at this moment. The further confirming check will be repeated when TM2 is moved back to ITW with dummy Febiad target at the end of this month. The rest check result: 1 small leak(1.2 xE-8 atm.cc/sec) is found on one TM2 blue nylon bottom o-ring. This o-ring will be replaced when module is moved out of ITW. It will be an easy job. Another small leak( 1.1XE-8 atm.cc/sec) is found on exit module 1 service cap top plate to frame o-ring seal. Its location is on east-south side of the exit module 1.This side is close and parallel to exit module 2 west-south side. Vacu- seal sprayer is used to fix this problem. After two times spray, the leak is disappeared. This is not a permanent fix. The big top plate o-ring replacement is a complicate and dose taking job. It need to be well planned. The leak rate is small, and the leak source is close to ITW TP3 so there is no rush to replace the big o-ring on exit 1 service cap top plate at this moment. But, we need to close watching on this issue and have a job plan for this o-ring replacement since it could get worse in the future. There is no leak has been found on big T tank seal this year as well. All other primary and secondary vacuum seals in ITW are good. TM2 water lines helum pressurize will be fulfilled In ITW or at TCS later. I will update this e-log when further test are finished.
2017-01-25: The O-ring on 60KV bias blue nylon stand is replaced at TCS. I leak check it. It is perfectly good now. |
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