 Friday, January 06, 2023, 10:38, David Wang, ITW, Standard Operation, TM2, , ITW/TM2 vacuum vessels leak check and TM2 internal cooling lines helium pressure test. 
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ITW
and TM2 primary and secondary vacuum vessel leak check is done. Leak detector is connected to ITW TP1. Base leak rate on leak detector is 0.0 x E-9
atm.cc/sec. See attachment for the result. No big issue. Two old leaks we found last year at location D and E disappeared in this check. |
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Monday, January 09, 2023, 14:19, Frank Song, ITW, Standard Operation, TM2, UCx#40, TM2 with UCx40 disconnection in ITW
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| TM2 with target UCx40 was disconnected in ITW and moved to NHC. |
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Tuesday, January 10, 2023, 10:15, Frank Song, Safe Module Parking, Standard Operation, TM2, UCx40 removed, TM2 electrical check with no target attached on SW silo
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| TM2 with no target on SW silo be electrical checked right after module moving. |
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Friday, May 19, 2023, 09:39, Frank Song, South Hot-Cell, Standard Operation, TM2, TiC#6, leak/electrical check
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| TM2 with TiC#6 was checked on SHC, see pic attached pls. |
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Wednesday, May 24, 2023, 08:34, David Wang, Conditioning Station, Standard Operation, TM2, TiC#6, TM2 HS line helium pressure check and gasline fittins leak check.
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TM2 HS line helium leak check is done. leak detector base LR 1.8xE-8atm.cc/sec. helium pressure 70 psi. 5 minutes test. no change on LD leak rate.
I spray lots helium to gas line adaptor and fittings. No leak.has been found at this base leak rate level. Since the TCS MP1 has some
issue ,this time the base leak rate on LD only can get to 1.8Xe-8 atm.cc/sec at this moment instead of 0.0xE-9. The low E-8 level is not perfect, |
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Thursday, May 25, 2023, 13:10, David Wang, Conditioning Station, Maintenance, TM2, , TCS MP1 is replaced due to poor performace.
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TCS MP1 is replaced due to poor performance( system shows unstable and high reading on TCSCG1A and high TP1,TP2 current draw) . The pump is edward 15i
scroll pump. Since vacuum group has no same spare pump, i have to use SMP roughing pump SMP:MP1 which is a same pump to replace it.. After the replacement
,the TCS:CG1A and TP1, TP2 current draw are back to normal. The original TCSMP1 was surveyed. Swipes on intake and exhaust port are 300 counts and 1000counts. |
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Monday, May 29, 2023, 12:52, Frank Song, ITW, Standard Operation, TM2, TiC#6, Module Connection
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| TM2 with TiC#6 was connected in ITW (FEBIAD), turbo pumps were started successfully. |
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Tuesday, May 30, 2023, 12:30, Frank Song, ITW, Standard Operation, TM2, TiC#6, gas lines pump out in ITW Faraday Cage
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Gas lines pumped down at electric
room for TM2 at ITW is done, leak rate 0.0e -8 <1.0e -3 T P pressure |
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Tuesday, June 06, 2023, 17:36, Carla Babcock, ITW, Standard Operation, TM2, TiC#6, Module conditioning
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| Conditioned TM2 up to 48kV in ITW. Some sparks and current is not very stable. Drawing about 178uA at 48kV. |
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Tuesday, August 08, 2023, 12:59, David Wang, ITW, Standard Operation, TM2, SiC #6, TM2 SiC#6 dhas been disconnected in ITW
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| TM2 SiC#6 has been disconnected in ITW. See check list |
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Tuesday, August 08, 2023, 13:01, David Wang, North Hot-Cell, Standard Operation, TM2, TiC#6, TM2 TiC#6 post run electrical check at NHC.
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| TM2 TiC#6 post run electrical check has been done at TCS. See attachment |
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Wednesday, August 09, 2023, 09:41, David Wang, North Hot-Cell, Standard Operation, TM2, Nb#10, TM2 Nb# 10 electrical and leak check at NHC
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| Nb#10 has been installed on TM2 . electrical and leak check on HS line are good. See attachment. |
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Wednesday, August 09, 2023, 13:13, David Wang, Conditioning Station, Standard Operation, TM2, Nb#10, Tm2 Nb#10 has been connect at TCS.
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TM2 Nb#10 has been connect at TCS. TCS water system and vacuum system have been started. Everything looks ok so far. TCS Faraday cage is secured for
TM2 conditioning at TCS. |
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Wednesday, August 09, 2023, 13:43, Carla Babcock, North Hot-Cell, Standard Operation, TM2, TiC#6, TiC#6 PIE
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PIE on TiC#6 was done in the NHC. The target assembly looked brand new when we took it out, no heating spots or deposits (pictures on docushare). Online
we measured a 400kOhm connection between TGHT-TBHT-COIL to HV common (TGHT and COIL shorted in TM2 service tray) and anode was unstable above ~300V. After
the module move and before the target removal David found TGHT-TBHT-COIL was a dead short to HV common and the anode was at 39kOhms to HV common. |
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Tuesday, August 15, 2023, 13:58, Frank Song, ITW, Standard Operation, TM2, Nb#10, Module Connection
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| TM2 with new target Nb#10 was moved to ITW from TCS and re-connected in pit. TPs are running at their full speed. |
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Friday, August 25, 2023, 07:22, Frank Song, ITW, Repair, TM2, Nb#10, module disconnection
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| TM2 with target Nb#10 was disconnected in ITW yesterday for beam production issue investigation. |
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Monday, August 28, 2023, 12:16, Frank Song, North Hot-Cell, Repair, TM2, Nb#11, electric/leak check
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| TM2 with new target Nb#11 has been E/L checked sitting on NHC. |
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Tuesday, August 29, 2023, 09:07, Frank Song, ITW, Repair, TM2, Nb#11, electrical check
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| TM2 with new target Nb#11 replaced has been electric checked one more time in ITW. |
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Tuesday, August 29, 2023, 09:28, Frank Song, ITW, Repair, TM2, Nb#11, Module Connection
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| Module was connected yesterday and all turbo pumps are running at their top speed. |
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Tuesday, October 03, 2023, 07:56, Frank Song, ITW, Standard Operation, TM2, Nb#11, module disconnection
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| TM2 with target Nb#11 has been disconneted in ITW. The HS line was purged with Nitrogen in station. |
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