 Friday, February 12, 2021, 07:07, David Wang, ITE, Maintenance, , , ITW and ITE clean up.
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| Vacuum cleaned ITW and ITE station. |
Wednesday, February 10, 2021, 13:30, David Wang, Safe Module Parking, Standard Operation, , , TM2 and TM4 electrical check without targets. 
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TM2 at SMP under vacuum. TM4 at silo. Frank and I did the tests. Everything is fine on TM4 check. On TM2, all mega test at 500V
are around 200K ohms which is so abnormal. We will move TM2 to TCS and start investigation there. |
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Wednesday, February 10, 2021, 11:34, David Wang, Assembly/Bench Test, Standard Operation, , , Old resin can and 2A window RH clamp field measurement at silo.
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Old resin can: 0.5 meter 360 degree rotation above silo area, 350u sv/hr. On contact 3.0 to 3.5 msv/hr. It was replaced
during 2017 winter shut down, and stored in silo since then.
2a window RH clamp: 0.5 meter, 160 usv/hr. On contact, hottest spot 3.5msv/hr, general,1.8 msv/hr. |
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Wednesday, February 03, 2021, 09:14, David Wang, Conditioning Station, Standard Operation, TM4, , TM4 from TCS to SW silo.
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TM4 is moved from TCS to SW silo. The moving is smooth.
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Wednesday, January 27, 2021, 14:30, David Wang, Cooling, Development, , , High active water system purging
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High active water are purged to holding tank at B2 level. There should be around 48 gallons are purged out of system. No purging on dump circuits
on both ITW/ ITE. |
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Monday, January 25, 2021, 12:33, David Wang, ITW, Standard Operation, , , ITW bias HV test
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Ramp up ITW bias to 57KV. no spark. 200uA leaking current at 57KV. The test is done without target module in station. ITW water circuits are looped
in pit. EE , EL are switched off during the test. |
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Monday, January 25, 2021, 10:57, David Wang, South Hot-Cell, Repair, TM4, , TM4 steers short investigation.
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Cables were disconnected for steers in containment box. The Megga measurement (500V) result from the top of the module:
Left to right: OL, left to top OL, left to bottom OL, right to top OL, right to bottom OL, Top to bottom OL. And all of them to ground
are OL. No short on cables from module top to steers itself. The short should be inside the steers. It will be confirmed with directly test on steers. |
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Friday, January 22, 2021, 12:34, David Wang, ITE, Standard Operation, , , ITE HV test.
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ITE annual HV test is done. No module in station. The bias power supply has been ramped up to 49KV on control page. We still have voltage limit issue
on this PS at 48KV so it only can go to 47.7 KV on PS panel. No major spark during test.. The test result is same as last year test which was did in March
2020. |
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Tuesday, January 19, 2021, 11:32, Travis Cave, Safe Module Parking, Standard Operation, TM2, Nb#9, Module move
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| TM#2 with Nb#9 was moved from ITW to SHC and then with no target it was moved from the SHC to the SMP. |
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Monday, January 18, 2021, 12:29, David Wang, ITW, Standard Operation, TM2, Nb#9, ITW vacuum and TM2 water lines leak check .
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ITW primary and secondary vacuum vessel leak check are done. There is a 5XE-8 atm.cc/sec leak on Exit service cap NW side square panel. The leak
is small. And, it is close to ITW TP3 so it is not affect ion beam line vacuum during operation. We will replace the seal on the panel later.
The rest leak check on air to vacuum seals are good. TM2 water lines are pressurized with 70 psi helium. We did it 3 hours after water lines are |
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Friday, January 08, 2021, 09:40, Travis Cave, South Hot-Cell, Standard Operation, TM4, Ta#61, Module move
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| TM#4 with Ta#61 has been moved from the east target station to the south hot cell. |
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Wednesday, January 06, 2021, 10:39, David Wang, ITE, Standard Operation, TM4, , ITE and TM4 annual leak check.
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| Frank and I finished ITE and TM4 primary and secondary vacuum vessel leak check. ＬＤ ｂｅａｓｅ ｌｅａｋ ｒａｔｅ ０.０ｘ－９ａｔｍ．ｃｃ／ｓｅｃ． Ｎｏ ｌｅａｋ ｈａｓ ｂｅｅｎ ｆｏｕｎｄ．Ａｌｓｏ， Ａｌｌ ＴＭ４ ｗａｔｅｒ ｌｉｎｅｓ ｈａｖｅ ｂｅｅｎ ｐｒｅｓｓｕｒｉｚｅｄ ｗｉｔｈ ７０ｐｓｉ ｈｅｌｉｕｍ ｆｒｏ ３ ｍｉｎｕｔｅｓ ｏｎ ｅａｃｈ ｃｉｒｃｕｉｔ． Ａｌｌ ｗａｔｅｒ ｌｉｎｅｓ ｉ |
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Monday, January 04, 2021, 12:13, Adam Newsome, Conditioning Station, Development, TM3, , TM3 Move
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| TM3 was remotely moved from the South Hot Cell to the conditioning station. No containment box. |
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Thursday, December 24, 2020, 09:00, Matthew Gareau, North Hot-Cell, Development, , , NHC USB connection
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24/Noc/2020
USB was discovered to be in the reverse direction and will need to be change around to become operational |
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Monday, December 21, 2020, 11:22, Adam Newsome, Crane, Standard Operation, , , Crane Shutdown for Power Outage
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The Target Hall Crane has been shut down in preparation for the power outage tomorrow (Dec 22). Power will be restored on Dec 23.
Dec 23 update: power has been restored. The crane appears to be in working condition as there is no fault indicator on the PLC. |
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Thursday, December 10, 2020, 15:07, Adam Newsome, South Hot-Cell, Development, TM3, , TM3 Move
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| TM3 was remotely moved from the conditioning station to the South Hot Cell. No containment box. |
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Monday, December 07, 2020, 12:20, Adam Newsome, Conditioning Station, Development, TM3, , TM3 Move
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| TM3 has been moved from the South Hot Cell to the Conditioning Station. No containment box. |
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Wednesday, November 25, 2020, 09:05, Adam Newsome, South Hot-Cell, Standard Operation, TM3, , Module Move
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| TM3 has been moved from the Silo to the South Hot Cell. |
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Tuesday, November 24, 2020, 12:56, David Wang, ITW, Standard Operation, TM2, Nb#9, TM2 has been connected in ITW
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| TM2 has been connected to ITW. Turbo pumps are stared. ITW pumping down is fine so far. |
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Tuesday, November 24, 2020, 09:37, Adam Newsome, ITW, Standard Operation, TM2, , Module Move
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| TM2 has been moved from the Conditioning Station to ITW. |
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