 Tuesday, September 29, 2020, 14:28, David Wang, South Hot-Cell, Standard Operation, TM4, UC#31, TM4 UC#31 Electrical check and HS leak check 
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Tm4 UCx 31# electrical check result. See attachment. |
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Tuesday, October 13, 2020, 10:16, Travis Cave, ITE, Repair, TM4, UC#31, Module move
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TM#4 is now in the south hot cell from the east target station. |
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Thursday, October 15, 2020, 12:48, Travis Cave, ITE, Standard Operation, TM4, UC#31, Module move
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TM#4 is now back in the east target station. |
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Tuesday, November 03, 2020, 10:52, Travis Cave, South Hot-Cell, Standard Operation, TM4, UC#31, Module move
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TM#4 with UC#31 has been moved from the east target station to the south hot cell. |
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Thursday, November 05, 2020, 10:48, Travis Cave, ITE, Standard Operation, TM4, Ta#61, Module move
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TM#4 with Ta#61 has been moved from the south hot cell to the east target station. |
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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 ｉｎ ＴＭ４ ａｒｅ ｇｏｏｄ． Ｎｏ ｒｅｓｏｐｎｅ ｏｎ ＬＤ ｄｕｒｉｎｇ ｔｅｓｔ． |
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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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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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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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Monday, April 12, 2021, 13:47, Anders Mjos, Assembly/Bench Test, Repair, TM4, , Steerer wiring
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Travis assembled and tested the steerer wires March 31st (see attached) |
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Wednesday, April 21, 2021, 10:34, David Wang, South Hot-Cell, Standard Operation, TM4, , Remtely remove TM4 from Silo to SHC.
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On 2021- 04-20, Tm4 is removed from Silo to SHC. The moving is smooth. |
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Thursday, April 22, 2021, 08:41, David Wang, South Hot-Cell, Repair, TM4, , TM4 steerer electical check at SHC and TH.
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Using SHC electrical test cables routed to to TH, We tested TM4 steerer 4 polarities. At 100v megga test, left, right , up and down to ground are all OL. TM4 steerer has no short. |
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Monday, April 26, 2021, 13:02, David Wang, South Hot-Cell, Repair, TM4, , TM4 new steerer cable installation.
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New steerer cables are installed in TM4. Cables are properly routed in containment box and service cap top. After job, TP2 is installed back onto module top. |
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Friday, April 30, 2021, 14:09, Luca Egoriti, ITE/ITW, Development, TM4, , TM4 resistance measurements for P2N
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Friday, April 30, 2021, 14:06
Anders and Luca
Resistance measurements on each electrical feedthroughs (A,B,C,D,E,I,P,Q,R,U,60kV,ground) taken with no target or no short attached to the module. Results as expected:
P-Q = 6.439 mOhm
R-U = 6.019 mOhm
All other combinations = Open Loop |
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Monday, May 31, 2021, 11:28, David Wang, ITE, Standard Operation, TM4, , Remotely remove TM4 from silo to shc
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Remotely remove tm4 from silo to shc. The moving is smooth. |
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Thursday, June 03, 2021, 08:19, David Wang, ITE, Repair, TM4, UCX33, Replaced ITE TP4
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Replaced ITE TP4 due to failure start. The new pump works fine. |
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Thursday, June 03, 2021, 08:33, David Wang, South Hot-Cell, Standard Operation, TM4, UCX32# P2N, P2N UCX 32 on TM4 electical check and leak check at SHC.
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Both electrical check and leak check (HS and Window lines)results are good. See attachments
Correction: It should be UCx#32 P2N instead of UCx33# in check list attached . UCx#33 is on TM2 in ITW |
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Wednesday, June 09, 2021, 10:15, David Wang, ITE/ITW, Standard Operation, TM4, UCX33. , ITE water signal interlock check.
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Annual ITE water signal interlock check is done. HS, TAR, TUBE, MSP, EE, COIL 1, containment box window, HVC1, HVC2, 2A window, 2A shielding plug, 2A dump, 2A collimator, and 2A tank water signal interlock are checked. Everything is working properly.
2021-06-22. Annual ITW water signal interlock check is done, HS, TAR, MSP, EE, COIL1 , containment box window, HVC1 , HVC2, 2A window, 2A shielding plug, 2A dump, 2A collimator, and 2A tank water signal interlock are checked. Everything works fine. |
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Thursday, July 08, 2021, 11:36, David Wang, Conditioning Station, Standard Operation, TM4, Ta#62, Remotely remove TM4(Ta#62) from SHC to TCS.
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Remotely remove TM4 (ta# 62) from SHC to TCS. The moving is smooth. |
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Thursday, July 08, 2021, 11:45, David Wang, South Hot-Cell, Standard Operation, TM4, Ta#62, TM4 Ta#62 leak check and lectrical check result at SHC and TCS.
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At SHC: HS line no leak . electrical check result is fine. At TCS: helium pressurized HS line to 70psi, 3 minutes. LD leak rate 0.0xE-9atm.cc/sec , no response. |
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