 Tuesday, March 17, 2020, 11:42, Travis Cave, ITE, Standard Operation, TM4, P to N target, Module move
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TM#4 with the P to N target has been moved from the south hot cell to the east target station. |
Tuesday, March 17, 2020, 12:58, David Wang, South Hot-Cell, Development, TM4, , P2N target electrical check and leak check at SHC. 
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See attachment. Everything looks good. |
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Tuesday, March 17, 2020, 14:59, David Wang, ITE, Development, TM4, P2N, ITE turbopumps are started.
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They work fine. Current draw on all pumps are normal. I asked operator to switch on IG1 , IG1S and PNG4. |
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Wednesday, March 18, 2020, 10:40, David Wang, ITE, Development, TM4, , TM4 P2N target connection checklist.
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TM4 has been connected in ITE. See checklist. |
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Wednesday, June 17, 2020, 09:49, chad fisher, South Hot-Cell, Standard Operation, TM4, C#1, C#1 installed
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Target C#1 has been installed on TM4 with new high current fasteners torqued to 130in lbs.
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Thursday, June 18, 2020, 13:25, David Wang, ITE, Standard Operation, TM4, P2N test., Disconnect TM4 in ITE.
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TM4 has been disconnected in ITE. Vacuum pumps and gauge are not disconnected yet. |
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Friday, June 19, 2020, 11:21, David Wang, ITE, Repair, TM4, P2N test., ITE TP3 is replaced.
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ITE TP3 is replaced. ITE is under vacuum again. All turbo pumps are started successfully. Current draw on pumps are normal so far. |
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Monday, June 29, 2020, 10:09, David Wang, ITE, Standard Operation, TM4, P2N test., ITE turbo pumps are stopped
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ITE venting is in processing. |
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Tuesday, June 30, 2020, 10:18, Travis Cave, South Hot-Cell, Standard Operation, TM4, Test Proton to Neutron Target, Module move
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TM#4 has been moved from the east target station to the south hot cell. |
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Friday, July 03, 2020, 07:03, David Wang, South Hot-Cell, Standard Operation, TM4, BEFORE TARGET INSTALLATION, ELECTRICAL CHECK BEFORE TARGET INSTALLATION.
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PQ SHORT TO RU. A TO PQ 1.8 M OHM AT 500 V. THE REST ARE OL |
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Friday, July 03, 2020, 08:46, chad fisher, South Hot-Cell, Standard Operation, TM4, UcX#30, UCx#30 installed onto tm4
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UCx#30 has been installed onto TM4 with new high current fasteners torqued to 130 in lbs. |
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Friday, July 03, 2020, 13:23, David Wang, South Hot-Cell, Standard Operation, TM4, UCx#30, TM4 UCx#30 Electrical check and HS leak check
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Electrical and leak check are good. See attachment. |
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Friday, July 03, 2020, 14:08, Travis Cave, ITE, Standard Operation, TM4, UC#30, Module move
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TM#4 with UC#30 has been moved from the south hot cell to the east target station. |
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Monday, July 06, 2020, 07:54, David Wang, ITE, Standard Operation, TM4, UCx 30, TM4 has been connected in ITE connection
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TM4 has been connected in ITE. Vacuum pumping down is good so far. |
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Tuesday, July 07, 2020, 17:43, Carla Babcock, ITE, Development, TM4, , RF tests on new IG-LIS wiring
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Tested RF from RF driver into new IGLIS wires at ITE. Used 5V, 1MHz (2MHz setting because of internal halving issue).
As expected there was a very slight mismatch visible (original cable ~ 68 Ohms, new cable ~ 53 Ohms).
The matching resistor will be changed and it will be retested. |
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Tuesday, September 22, 2020, 10:56, Travis Cave, South Hot-Cell, Standard Operation, TM4, UC#30, Module move
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TM#4 with UC#30 has been moved from ITE to the south hot cell. |
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Wednesday, September 23, 2020, 10:56, chad fisher, South Hot-Cell, Standard Operation, TM4, UC#31 P2N, Uc#30 removed UC#31 P2N installed
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UCx#30 has been removed from TM#4 and put in a can with argon. 5(10) pin connector had to have guide screws removed to be uninstalled.
UCx#31 P2N installed. |
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Thursday, September 24, 2020, 11:25, David Wang, Conditioning Station, Standard Operation, TM4, UC#31, TM4 HS line leak check at SHC and TCS.
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Both helium spray and helium pressurize on TM4 HS line withUCx31 target are done at SHC and TCS. No leak. |
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Tuesday, September 29, 2020, 12:12, David Wang, ITE, Repair, TM4, , TM4 steerers staus after" left " grounding issue, and first stage investigation
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Left (short) is switched with bottom. So on module:
"Left" is bottom in module actually
"Bottom and Right" is Left and right in module actually.
For the connection in ITE:
Left cable is connected to "left" ( bottom in module actually)
Top cable is connected to " Bottom and Right"( left and right in module actually)
Bottom and Right cable is connected to "Top" which is top in module.
Frank and I removed the panel, disconnected the "Left"cable inside panel, and checked cable to ground resistance. "Left "is dead short to ground on ohmmeter check still. So the short could be on cable or inside source tray. Further investigation is planned to confirm the short location. |
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Tuesday, September 29, 2020, 12:29, Travis Cave, ITE, Standard Operation, TM4, UC#31, Module move
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Module move of TM#4 with UC#31 was finished to today at around 10:30AM. |
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