 Friday, September 17, 2021, 14:28, Travis Cave, Spent Target Vault, Standard Operation, , Ta#62, Spent Target Move 
|
The spent Ta#62 target along with 2A2M19 were placed in pail #256 and placed in spot 7A of the spent target vault. See attached PDF for vault details. |
|
Friday, September 17, 2021, 12:34, Frank Song, ITE, Standard Operation, TM4, Sic#41, Module Connection
|
TM4 with a new target was moved back from NHC to ITE and reconnected at pit. The 5 shielding blocks were installed as well. Copies of connection checklist are attached here. |
|
Friday, September 17, 2021, 12:20, Frank Song, North Hot-Cell, Standard Operation, TM4, Sic#41, TM4 SIS with Target and No external Connections
|
TM4 electric check with new target was done by David. A pic attached here for ref. |
|
Wednesday, September 15, 2021, 08:39, Travis Cave, ITE, Standard Operation, TM4, SiC#41, Module move
|
TM#4 with SiC#41 has been moved from the NHC to ITE. |
|
Tuesday, September 14, 2021, 09:18, Travis Cave, South Hot-Cell, Repair, TM4, SiC#40, Module move
|
TM#4 with SiC#40 has been moved from the east target station to the south hot cell. |
|
Thursday, August 12, 2021, 14:13, Adam Newsome, ITW, Repair, , , West Entrance Module Move to ITW
|
The West Entrance Module has been moved from the South Hot Cell to the West Target Station. |
|
Wednesday, August 11, 2021, 11:15, Adam Newsome, Spent Target Vault, Development, , , Mini-Storage: Cable track for e-chain installed
|
A cable track was installed between the mini-storage vault and the silos, for the purpose of implementing a retractable cable chain (e-chain). This will allow for cables to be managed during door opening/closing, so that remote control operation of the door will be possible in the future. See Work Permit I2021-08-11-2 (Aug 11)
Holes were drilled into the motor mounting plate (IRH2089) to allow for mounting a limit switch on the plate. See Work Permit I2021-08-17-7 (Aug 17)
Preliminary testing was completed in which the e-chain was fixed to the door with a C-clamp. Local and remote functionality were checked, and limit switch functionality was verified. Everything is working as expected. A final test will be conducted once the e-chain is fixed to the door and cabling routed through it. See Work Permit I2021-08-19-1 (Aug 19)
The e-chain has not yet been fixed to the vault door - holes will be drilled in-situ after preliminary testing is complete to confirm positioning.
Edit [2021-09-23]: the installation is complete and has been tested. |
|
Tuesday, August 10, 2021, 10:16, Adam Newsome, South Hot-Cell, Repair, , , West Entrance Module Move to South Hot Cell
|
The West Entrance Module has been moved to the South Hot Cell for repair. |
|
Friday, August 06, 2021, 11:52, Travis Cave, North Hot-Cell, Standard Operation, , UC#33, Spent Target Move
|
UC#33 has been packed and moved from the north hot cell to the spent target vault. See attached PDF for
deatails |
|
Wednesday, August 04, 2021, 17:24, David Wang, North Hot-Cell, Standard Operation, TM2, UCx34#, UCX 34# on TM2 electical check and HS leak check at NHC.
|
The job is done with Matt at NHC. All TGHT and TBHT bolts are torque wrench tight in NHC. HS leak check result is good.
helium pressurized HS line at TCS. No leak. |
|
Friday, July 30, 2021, 16:31, Carla Babcock, ITE, Repair, , , ITE re-wire
|
See the attached for the way ITE has been re-wired for the Ta62 run. Note also that the copper block in the schematic on TBHT negative may not actually be connected. Wiring verification on Aug. 4. |
|
Friday, July 30, 2021, 16:19, Carla Babcock, ITE, Repair, TM4, Ta#62, Electrical issues on Ta62
|
TLDR: TBHT voltage too high and rising too quickly with TGHT current - voltage limited. TGHT power supply tripped breakers somehow. ITE:EL not outputting voltage.
A short between feedthroughs A and P developed at the end of the p2n run in this module, and was fixed by Chad prying apart the lines in the source tray with a long teflon bar. We did not take the containment box off to fix it properly for reasons of time and also potential damage to the containment box. This seemed to fix it and David measured around 13MOhms between A-P when the module was installed in ITE. To make sure we could recover if the short reappeared during the run, David did not connect the P/Q feedthrough to HV common on the module top as usual, but it was connected in the electrical room. I also unhooked the busbar from the coil power supply.
When trying to start the TGHT ramp up, it was discovered that ITE:TGHT had a fault in its readback circuit, which was showing negative voltages. Not sure how this happened, since the power supply was not used for the previous p2n run, maybe an HV spark? This supply was replaced with the spare (SN 1161-9894).
When TGHT and TBHT were able to be ramped up, we found that the tube heater voltage was increasing too much with the target current. Normally the rate of increase is about 0.0004 V per amp on TGHT. This time it was 0.004 V/A. This was causing the TBHT to be voltage limited, which I thought could be related to the AP short. So I re-wired it such that the P feedthrough (#7 in the electrical room) was disconnected from everything except it was tied to feedthrough A (#1) using a 100 Ohm resistor. This should prevent it from floating and also prevent current from going through. See documentation in the Target Records folder (https://documents.triumf.ca/docushare/dsweb/Get/Document-204373/July272021_ITETM4_electricalissues.pdf).
During the subsequent ramp up, the TGHT power supply tripped the breakers when it was at 500A, 8V. The cause of this is still uncertain, and the TBHT voltage issue persisted after the wiring change. In the interest of time we decided to stay conservative on the currents used and continue to run like this. It may also be possible that the copper block which is supposed to reference TBHT negative to HV common is not attached.
Finally ITE:EL is still not working. It shows a value on the front of the PSU but doesn't draw enough current and doesn't affect the beam. We are running without it and it will hopefully be fixed on the Aug. 4 maintenance day.
These electrical issues bear some resemblance to those with Ta61, but I don't think we ever determined the cause there. |
|
Tuesday, July 20, 2021, 09:46, Adam Newsome, ITE, Standard Operation, TM4, , Remotely moved TM4 from TCS to ITE
|
TM4 was moved from the conditioning station to the East target station. |
|
Thursday, July 15, 2021, 09:02, Adam Newsome, Spent Target Vault, Standard Operation, , , Emergency Close Mechanism Test
|
The emergency close mechanism for the Storage Vault door was tested by Adam Newsome and Travis Cave. The door was opened to its fully open limit, then closed with the emergency system.
The test was successful. |
|
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.
|
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. |
|
Thursday, July 08, 2021, 11:36, David Wang, Conditioning Station, Standard Operation, TM4, Ta#62, Remotely remove TM4(Ta#62) from SHC to TCS.
|
Remotely remove TM4 (ta# 62) from SHC to TCS. The moving is smooth. |
|
Wednesday, July 07, 2021, 11:59, Adam Newsome, Safe Module Parking, Maintenance, , , Annual Electrical and Mechanical Inspection
|
An annual electrical and mechanical inspection was performed on the SMP today by Adam Newsome, Dan McDonald, and Jason Zhang as per Work Permit I2021-07-07-3. The following items were checked:
- Check condition of wiring for physical/radiation/UV damage
- OK, no signs of significant damage
- Check for cable tray debris or damage
- There were multiple shards of plastic in the cable tray - they were removed and disposed of
- Check inside control panel: components and wiring, labeling
- Labeling intact, components in good condition
- One COM wire for the relay array was loose - it was tightened
- Verify camera views
- This was not inspected but has recently been checked, and is checked prior to remote operation
- Check connectors for damage
- Check pendant for damage and verify labeling intact
- Lid open/close test
- Lid was opened and close multiple times - smooth operation, no concern
- Lid close logic was checked - OK
- Vessel rotation and limit switch check
- Both CW and CCW limits were checked, functioning
- No concern on rotation - chain drive, rotary limit switch, and cable reel all functioning normally
- Lubricate chains
- Inspect tensioners
- Tighten fasteners
- Done - OK
- Note: some concern over socket head screws in slotted parts - they should have washers. Not a critical issue but worth checking into.
- Visual inspection
Overall the inspection was successful. |
|
Wednesday, June 30, 2021, 14:11, Matthew Gareau, North Hot-Cell, Standard Operation, , , North Hot Cell Commemorative Opening
|
Yesterday a bottle of Cava (sparkling wine) was place, opened, and poured in the NHC, to commemorate its new operational status.
The NHC is now a functional hot cell and is ready for many years of target exchanges to come. |
|
Tuesday, June 22, 2021, 15:35, David Wang, ITW, Standard Operation, TM2, UCX33#, TM2 has been connected it ITW.
|
TM2 has been connected it ITW. All turbo pumps are started. |
|
Friday, June 11, 2021, 10:36, David Wang, Conditioning Station, Standard Operation, TM2, UCX33#, TM2 leak check at TCS
|
Leak checked TM2 service cap at TCS. helium pressure checked containment box window and HS cooling lines. No leak on service cap and waterlines. |
|