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New entries since:Wed Dec 31 16:00:00 1969
ID Date Author Category Type Moduledown Target/Number Subject
  2086   Tuesday, March 17, 2020, 11:42 Travis CaveITEStandard OperationTM4P to N targetModule move

 TM#4 with the P to N target has been moved from the south hot cell to the east target station.

  2087   Tuesday, March 17, 2020, 12:58 David WangSouth Hot-CellDevelopmentTM4 P2N target electrical check and leak check at SHC.

See attachment. Everything looks good.

Attachment 1: P2N_target_electrical_chek_at_SHC.pdf
P2N_target_electrical_chek_at_SHC.pdf
  2088   Tuesday, March 17, 2020, 14:59 David WangITEDevelopmentTM4P2NITE turbopumps are started.

They work fine. Current draw on all pumps are normal. I asked operator to switch on IG1 , IG1S and PNG4.

  2089   Wednesday, March 18, 2020, 10:40 David WangITEDevelopmentTM4 TM4 P2N target connection checklist.

TM4 has been connected in ITE. See checklist.

Attachment 1: P2N_TM4_connection_checklist.pdf
P2N_TM4_connection_checklist.pdf P2N_TM4_connection_checklist.pdf P2N_TM4_connection_checklist.pdf P2N_TM4_connection_checklist.pdf
  2103   Wednesday, June 17, 2020, 09:49 chad fisherSouth Hot-CellStandard OperationTM4C#1C#1 installed

Target C#1 has been installed on TM4 with new high current fasteners torqued to 130in lbs.

 

 

Attachment 1: C#1_Target.jpg
C#1_Target.jpg
  2107   Thursday, June 18, 2020, 13:25 David WangITEStandard OperationTM4P2N test.Disconnect TM4 in ITE.

TM4 has been disconnected in ITE. Vacuum pumps and gauge are not disconnected yet.

  2108   Friday, June 19, 2020, 11:21 David WangITERepairTM4P2N test.ITE TP3 is replaced.

ITE TP3 is replaced. ITE is under vacuum again. All turbo pumps are started successfully. Current draw on pumps are normal so far.

  2113   Monday, June 29, 2020, 10:09 David WangITEStandard OperationTM4P2N test.ITE turbo pumps are stopped

ITE venting is in processing.

  2114   Tuesday, June 30, 2020, 10:18 Travis CaveSouth Hot-CellStandard OperationTM4Test Proton to Neutron TargetModule move

 TM#4 has been moved from the east target station to the south hot cell.

  2116   Friday, July 03, 2020, 07:03 David WangSouth Hot-CellStandard OperationTM4BEFORE TARGET INSTALLATIONELECTRICAL CHECK BEFORE TARGET INSTALLATION.

PQ SHORT TO RU. A TO PQ 1.8 M OHM AT 500 V. THE REST ARE OL

Attachment 1: TM4_ELECTRICAL_CHECK_20220_07_02.pdf
TM4_ELECTRICAL_CHECK_20220_07_02.pdf
  2117   Friday, July 03, 2020, 08:46 chad fisherSouth Hot-CellStandard OperationTM4UcX#30UCx#30 installed onto tm4

UCx#30 has been installed onto TM4 with new high current fasteners torqued to 130 in lbs.

  2118   Friday, July 03, 2020, 13:23 David WangSouth Hot-CellStandard OperationTM4UCx#30TM4 UCx#30 Electrical check and HS leak check

Electrical and leak check are good. See attachment.

Attachment 1: TM4_UCx30_elctrical_and_leak_check_at_SHC..pdf
TM4_UCx30_elctrical_and_leak_check_at_SHC..pdf
  2119   Friday, July 03, 2020, 14:08 Travis CaveITEStandard OperationTM4UC#30Module move

 TM#4 with UC#30 has been moved from the south hot cell to the east target station.

  2120   Monday, July 06, 2020, 07:54 David WangITEStandard OperationTM4UCx 30TM4 has been connected in ITE connection

TM4 has been connected in ITE. Vacuum pumping down is good so far.

Attachment 1: Tm4_UCx_30_connection_checklist.pdf
Tm4_UCx_30_connection_checklist.pdf Tm4_UCx_30_connection_checklist.pdf Tm4_UCx_30_connection_checklist.pdf Tm4_UCx_30_connection_checklist.pdf
  2123   Tuesday, July 07, 2020, 17:43 Carla BabcockITEDevelopmentTM4 RF tests on new IG-LIS wiring

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.

  2145   Tuesday, September 22, 2020, 10:56 Travis CaveSouth Hot-CellStandard OperationTM4UC#30Module move

 TM#4 with UC#30 has been moved from ITE to the south hot cell.

  2146   Wednesday, September 23, 2020, 10:56 chad fisherSouth Hot-CellStandard OperationTM4UC#31 P2NUc#30 removed UC#31 P2N installed

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.

  2148   Thursday, September 24, 2020, 11:25 David WangConditioning StationStandard OperationTM4UC#31TM4 HS line leak check at SHC and TCS.

Both helium spray and helium pressurize on TM4 HS line withUCx31 target are done at SHC and TCS. No leak.

  2149   Tuesday, September 29, 2020, 12:12 David WangITERepairTM4 TM4 steerers staus after" left " grounding issue, and first stage investigation

Left (short) is switched with bottom. So on module:

"Top" is still top.

"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.

  2150   Tuesday, September 29, 2020, 12:29 Travis CaveITEStandard OperationTM4UC#31Module move

 Module move of TM#4 with UC#31 was finished to today at around 10:30AM.

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