 Tuesday, April 18, 2023, 07:28, chad fisher, North Hot-Cell, Maintenance, , , NHC entry summary
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NHC was entered on April 17, 2023 for inspection and maintenance. Summary :
Compressible and non-compressible waste was loaded into a 55 gal drum and removed from the NHC. This same drum will be inserted into the SHC at
a later date to be sorted, compressible waste compressed, and drum filled more. |
Monday, May 08, 2023, 10:59, Frank Song, North Hot-Cell, Standard Operation, TM4, TiC#5, electrical check/leak check 
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| TM4 with target TiC#5 installed has been leak checked and electric checked on NHC. |
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Tuesday, June 13, 2023, 11:45, Frank Song, North Hot-Cell, Standard Operation, TM4, TiC#5, electrical check
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| TM4 with spent target TiC#5 electric check after moving from ITE to NHC. |
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Tuesday, June 13, 2023, 11:49, Frank Song, North Hot-Cell, Standard Operation, TM4, SiC#45, electrical check and leak check
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| TM4 with new target SiC#45 installed has been leak checked and electrical checked on top of NHC. |
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Wednesday, July 12, 2023, 22:21, Carla Babcock, North Hot-Cell, Standard Operation, , TiC#5, TiC#5 post irradiation inspection results
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The TiC#5 post irradiation inspection was done on Wed. June 14 and Mon. June 19. This target didn't have any obvious issues but it didn't produce much
beam. The inspection revealed that the container was quite embrittled and showed significant damage, though it was not broken. The FEBIAD grid looked fine,
despite the large anode current draw (indicating that current was flowing elsewhere). The gas line looked fine though the gas injection to this target |
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Tuesday, July 18, 2023, 10:08, Frank Song, North Hot-Cell, Standard Operation, TM4, SiC#45, module disconnection & electrical check right after transferred from ITE to NHC
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| TM4 with spent target SiC#45 was disconnected ITE and an electrical check made right after moved on NHC. |
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Wednesday, July 19, 2023, 08:09, Frank Song, North Hot-Cell, Standard Operation, TM4, UCx#42, electrical check
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| An electrical check was made after new target installed on TM4. |
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Tuesday, July 25, 2023, 16:25, Carla Babcock, North Hot-Cell, Standard Operation, , SiC#45, SiC#45 post irradiation inspection
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Looked at SiC#45 in the hot cell. Looked very clean, no deposits on the heat shield or other components. Target also looked very straight. Only issue
we saw was sparking marks on the EE side that faces the ground electrode, in several spots. This target had a bout of sparking when ramping up the protons,
so I guess that was the location. Will look for matching spark marks on the ground electrode next time TM4 is in the hot cell. Forgot to take picutres... |
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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, 13:43, 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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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, 10:45, Frank Song, North Hot-Cell, Standard Operation, TM4, UCx#42, electrical check
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| TM4 with spent target UCx#42 has been electric checked at NHCpost right after transferred from ITE. |
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Tuesday, August 29, 2023, 14:32, Frank Song, North Hot-Cell, Standard Operation, TM4, Ta#65, electrical check/leak check
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| TM4 with new target Ta#65 has been E/L checked at NHCPost. |
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Tuesday, August 29, 2023, 14:32, Frank Song, North Hot-Cell, Standard Operation, TM4, Ta#65, electrical check/leak check
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| TM4 with new target Ta#65 has been E/L checked at NHCPost. |
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Thursday, June 27, 2024, 09:49, David Wang, North Hot-Cell, Standard Operation, , Nb#10, Nb#10target has been remotely transferred from NHC to SHC.
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| Nb#10target has been remotely transferred from NHC to SHC. |
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Wednesday, September 11, 2024, 13:38, Adam Newsome, North Hot-Cell, Repair, , , Spare Manipulator - Y-axis motion not functioning
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Update 2024-09-12: C. Fisher confirms this is actually normal behaviour. The Y-axis motion is inhibited when X and Z
are in a certain configuration, which was true when the manipulator was mounted on the wall in storage position. Non-issue. A note about this has been
made in the operator manual. |
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Monday, September 16, 2024, 08:23, chad fisher, North Hot-Cell, Repair, , , Model N Remote end #9352 reapir
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On Friday, September 6, 2024 Model 'N' remote arm #9352 was removed from the NHC right side installed position to investigate an ongoing issue
with the tong motion circuit (no motion on the remote side when handle on operator side operated).
Inspection revealed that the tong cable on this arm have hopped its cable drum and rapped around the shaft of the cable drum. As well, the tong |
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Wednesday, January 29, 2025, 11:39, chad fisher, North Hot-Cell, Repair, , , Model N Remote Arm #9342 Tong Cable
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Model N remote arm serial #9342 tong cable has been un-jammed from between pulley 3D (see picture) and casting (this is an ongoing issue with #9342 and
9352) and cable restrung and exercised to check motion. Tong system is now functional but exhibits excessive slack. Next step will be to check tension
of the elevation/twist cables and adjust the pulley block if required (this pulley block houses both the elevation twist cable pulleys and the tong cable |
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Tuesday, April 01, 2025, 09:47, Frank Song, North Hot-Cell, Repair, , , Two NHC light bulbs replacement
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| 2 broken lights of NHC were replaced in Target Hall. see pics attached. |
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