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  RH-ISAC, Page 17 of 138  Not logged in ELOG logo
ID Date Author Category Type Module Target/Numberdown Subject
  160   Tuesday, August 14, 2012, 11:16 Travis CaveITWStandard OperationTM1UCx#4module move

TM#1 with UCx#4 has been moved from the conditioning station to the west target station move went well.

  161   Tuesday, August 14, 2012, 11:16 Travis CaveITWStandard OperationTM1UCx#4module move

TM#1 with UCx#4 moved from the conditioning to the west target station move went well.

  177   Thursday, September 13, 2012, 11:03 Travis CaveSouth Hot-CellStandard OperationTM1UCx#4module move

TM#1 with UCx#4 has been moved from the west target station to the south hot cell. Move went well.

  179   Friday, September 14, 2012, 10:45 Travis CaveSpent Target VaultStandard Operation UCx#4Spent target move

UCx#4 has been moved from the south hot cell to the spent target vault. The target was placed in pail #99 and now resides in spot 3C of the vault. It measured 55.3mSv/hr at ~1m from the hot cell. See attached PDF for further spent target vault details.

  2363   Thursday, September 08, 2022, 07:20 Frank SongNorth Hot-CellStandard OperationTM2UCx#39electrical check

 An electrical check was done on NHC yesterday.

  2364   Thursday, September 08, 2022, 09:06 David WangConditioning StationStandard OperationTM2UCx#39HS line helium pressure test.

TM2 with UCX#39 HS line helium pressure test is done at TCS. 70 psi helium 3minutes. No leak @0.0XE-9 atm.cc/sec.

  2365   Tuesday, September 13, 2022, 14:10 Frank SongITWStandard OperationTM2UCx#39Module Connection

 TM2 with UCx#39 is connected in ITW.

  2381   Tuesday, November 01, 2022, 12:37 Frank SongITWStandard OperationTM2UCx#39disconnection

 TM2 with spent target UCx#39 was disconnected in ITW then moved to NHC.

  2382   Tuesday, November 01, 2022, 12:40 Frank SongNorth Hot-CellStandard OperationTM2UCx#39electrical check

 TM2 with spent target UCx#39 had an electric check in NHC.

After UCx 39# target was removed out., I did electrical check on TM2.   @500 V B to C is 5M ohm. all Others between are above 25Mohm. HV to Chasis is 650Mohm.  A to P is still short.

  2386   Thursday, November 03, 2022, 16:41 Carla BabcockNorth Hot-CellStandard Operation UCx#39Post irradiation inspection UCx#39

Did the PIE on UCx#39-IGLIS on Thursday Nov. 2 2022, couple pictures uploaded to docushare. Did not remove the target, just the heat shield cover.

Final electrical check on the module showed a dead short from TGHT/TBHT to HV common, which we did not see online. Seems like it must have occurred after ramp down? It persisted on the target after we removed it from the module. We couldn't find any obvious contact points, because it seems it did not happen while current was running in the target. Possible locations are the bottom support leg for the TBHT and the top of the right side target leg, though it was difficult to confirm with the camera.

Otherwise the only thing to note was a blacker-than-usual spot on the inside of the Cu heat shield, downstream in the proton direction.

 

  2348   Thursday, July 21, 2022, 10:24 Frank SongNorth Hot-CellStandard OperationTM2UCx#38electrical check

 A electrical check was done for TM2 with UCx#38

  2349   Tuesday, July 26, 2022, 13:50 Frank SongNorth Hot-CellStandard OperationTM2UCx#38TM2 electrical check with Target and No external Connections

 A standard electrical check was done for TM2 after the short issue be fixed.

  2350   Wednesday, July 27, 2022, 08:11 Frank SongITWStandard OperationTM2UCx#38Module Connection

 TM2 with Target UCx#38 was connected in ITW.

  2352   Friday, July 29, 2022, 12:05 Carla BabcockNorth Hot-CellRepairTM2UCx#38Repair of UCx#38 EE short in ante room

UCx#38 developed a short between the plasma electrode and the extraction electrode about 30mins after reaching full temperature in the conditioning station. The decision was made to bring it into the anteroom and try to clean it there.

To do this, it was uninstalled, the parasitic attachments were removed and it was brought into the ante room.

I removed the EE and the PE, and cleaned quite a lot of material from them both with methanol. I think put the ionizer foil bar down the ionizer to help dislodge any material there, and I also turned the target over and tapped gently to get any material out. The first two times some flakes came out, the third time nothing came out. I then reinstalled the electrodes using the EE alignment tool (not sure how successfully, didn't push it into the ionizer too much because I was worried about catching the Rh foil).

The taret was meggered at 500V then reinstalled and electrical checks were done. Everything looks back to normal. Conditioning in ITW was successful.

  2361   Tuesday, September 06, 2022, 13:58 Frank SongITWStandard OperationTM2UCx#38module disconnection

 TM2 with Target UCx38 was disconnected in ITW and moved to NHC

  2362   Tuesday, September 06, 2022, 14:05 Frank SongNorth Hot-CellStandard OperationTM2UCx#38electrical check after disconnection

 An electrical was done on the NHC for TM2 with spent Target UCx#38 on

  2321   Wednesday, May 18, 2022, 13:52 Frank SongSouth Hot-CellStandard OperationTM4UCx#37electrical check

 The TM4 with installed target #UCx37 had been electric checked at SHC. PICs attached.

  2323   Thursday, May 19, 2022, 15:05 Frank SongITEStandard OperationTM4UCx#37UCx#37 P2N connection on TM4

 TM4 with UCx#37 was connected in ITE. Attachment available.

  2333   Tuesday, June 21, 2022, 17:49 Frank SongITEStandard OperationTM4UCx#37TM4 disconnection

 the module with target UCx37 was disconnected in ITE.

  2335   Tuesday, June 21, 2022, 18:43 Frank SongNorth Hot-CellStandard OperationTM4UCx#37electrical check

 A p2n target in TM4 was electrical measured on NHC. see attachment pls.

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