ID |
Date |
Author |
Category |
Type |
Module |
Target/Number |
Subject |
2378
|
Monday, October 17, 2022, 08:07 |
David Wang | ITE/ITW | Repair | TM4 | | A small leak on target station secondaryvacuum back up line by ITH MP1S. |
A small leak in target station secondary vacuum back up line is observed. It affects ITH CG2S,CG1S and CG4SA. Current draw on TP1s and TP4S is getting higher(above 1A) because of it. An internal leak in ITH MP1S is suspected by first round investigation. Close watching on system and further investigation are needed. |
Initial Action Taken: |
none |
17-Oct-2022 Comment by David Wang: On OCt 14th, Replaced a flexible hose on MP1S pump exhaust port,but did not solve the issue. High frequency vibration was sensed by hand on MP1S pump inlet and outlet ports. Pump height and position in pit are adjusted slightly in pit to reduce vibration. After, ITHCG2 and ITW CG4SA got a huge improvement in past 3 days. All back up line pressure are stabilized at normal operation status. Still, close watching on this issue is needed to ensure the present status is stabilized in long term.
The issue was returned after shielding block installation Monday morning at 8:30am. Investigated further, I temporarily installed a turbopump used cooling fan on MP1s to improve pump heat dissipation. And a room fan is put outside on shielding blocks opening hole to increase air circulation into pit. Since then, everything is perfect. All secondary turbo pumps current draw is around 0.5 to 0.6A which is the best. I guess that short duo 10 pump life we observed in past could be related to high pump operation temperature in pit as well. We may increase the pump life if air circulation around the pump could be improved. A permanent solution is needed for it. |
2377
|
Thursday, October 13, 2022, 09:32 |
Travis Cave | Spent Target Vault | Standard Operation | | SiC#44 | Spent Target Move |
Spent target move done. The SiC#44 was moved from the north hot cell to the spent target vault. It was placed in pail#275 and placed in spot#4A. It was 42.6mSv/hr when removed from the north hot cell. See attached PDF for further details about the vault.
Please note we will only have two free spots in the vault at the start of the running period after the winter shutdown 2023. |
Attachment 1: Target_Index_2022-10-13.pdf
|
|
2376
|
Tuesday, October 11, 2022, 12:39 |
Frank Song | ITE | Standard Operation | TM4 | C#4 | Module Connection |
TM4 with Target C#4 was connected in ITE. |
Attachment 1: TM4_with_C#4_connection_in_ITE.png
|
|
2375
|
Friday, October 07, 2022, 14:46 |
Adam Newsome | South Hot-Cell | Development | | | Addition of lift table to E-stop circuit |
A modification was made to integrate the hot cell's lift table into the E-stop circuit. See work permit I2022-10-07-1
The E-stop mounted on the right side of the small enclosure adjacent to the operator station will now serve to stop the lift table's up and down motion, as well as the turntables up/down and CW/CCW motions. Functionality was checked by B. Webster (electrical services) and A. Newsome.
Note: it is recommended next time there is a hot cell entry to inspect whether or not the limit switch specified in the schematic is actually installed. The schematic should be updated to match the drawing.
Redlined electrical drawing photo attached to this e-log, and the paper drawing is left inside the lift table's control box. The schematic will be revised based on the redline updates, likes as part of work request #6342 (to integrate this drawing into the turntable controls drawing package). |
Attachment 1: ISAC_SHC_Lift_Schematic_updated_20221007.jpg
|
|
Attachment 2: PXL_20221007_185635660.MP.jpg
|
|
Attachment 3: PXL_20221007_185649720.jpg
|
|
2374
|
Wednesday, October 05, 2022, 09:31 |
David Wang | Conditioning Station | Standard Operation | TM4 | C#4 | HS line helium pressure test. TM4 with C#4 at TCS. |
TM4 HS line helium pressure test is done. 70psi helium pressure@ 3XE-8 atm.cc/sec . No leak. |
2373
|
Tuesday, October 04, 2022, 07:19 |
Frank Song | North Hot-Cell | Standard Operation | TM4 | C#4 | electrical check |
an electrical was done for TM4 with target C#4 installed on NHC. |
Attachment 1: tm4_with_C#4_installed.png
|
|
2372
|
Monday, October 03, 2022, 14:58 |
Matthew Gareau | North Hot-Cell | Repair | TM4 | SiC#43 and C#4 | Loose multipin guide pin |
Today while I was removing the SiC#43 it was noticed that the multipin guide pin was loose.
This made it difficult to remove the target, and the multipin shoulder bolts removal was required.
With the loose pin it was not possible to attach the multipin for the target C#4.
Chad was able to tighten the multipin guide pin enough, however it became obvious that the pin could not be removed when it was attempted.
With the pin tightened, the target C#4 was installed and all checks were good.
It was recommend that once the C#4 target is removed the TM4 will need some repair to remove the multipin guide pin.
Chad - Also it was noted that the guide pin (ITA6453) in question showed signs of plating or heat (see pictures I've added) |
Attachment 1: MicrosoftTeams-image.png
|
|
Attachment 2: MicrosoftTeams-image_(1).png
|
|
Attachment 3: MicrosoftTeams-image_(2).png
|
|
2371
|
Monday, October 03, 2022, 14:28 |
Keith C Ng | Assembly/Bench Test | Maintenance | | | ITA2826 rev E assembly |
A fully built steerer sub assembly ITA2826 revision E was boxed and sealed and put on rack storage in ISAC B2 South Hot Cell area. It is contained in a blue bin and green tag.
It is advised if this assembly is used, it should be inspected for damage before using in a source tray. |
2370
|
Monday, October 03, 2022, 09:42 |
Frank Song | ITE | Standard Operation | TM4 | Sic#44 | module disconnection |
TM4 with SiC@44 was disconnected in ITE. |
Attachment 1: TM4_with_SiC#44_disconnected_in_ITE.png
|
|
2369
|
Wednesday, September 28, 2022, 13:15 |
Matthew Gareau | North Hot-Cell | Maintenance | | | topped up the NHC window oil through the oil expansion tank |
Myself and Maico were able to top up the NHC window oil.
The oil was filled through the expansion tank
- the Nitrogen line closed and the Nitrogen pressure valve was disconnected to ensure that no oil would go in to them.
- the pressure relief valve was disconnected to act as an air bleed line while we filled the oil
- with a funnel we slowly added the oil until the oil level could be read, showing about half full
- about 1.5 liters of oil were added
- once filled the Nitrogen line was reattached and the pressure was returned to recommended level
- the remaining oil was returned the RH shop
Now the oil level will be monitored, which will help identify if there is any leak in the system. |
Attachment 1: IMG_20220928_121000.jpg
|
|
Attachment 2: IMG_20220928_124253.jpg
|
|
Attachment 3: IMG_20220928_124258.jpg
|
|
2368
|
Wednesday, September 28, 2022, 12:58 |
Matthew Gareau | North Hot-Cell | Repair | | | Chad repaired the right operator side manipulator |
On 26/Sept/2022
Chad disassembled the right operator side manipulator, and noticed that gears in the handle were quite tight especially when compared to the left operator side manipulator.
Once a dry grease was added, and the handle reassembled all seemed to be in working order.
There was noticeable wear on a shaft and Chad has suggested to order some spare parts for the wrist and handle. |
Attachment 1: IMG_20220926_091024~2.jpg
|
|
Attachment 2: IMG_20220926_091040.jpg
|
|
Attachment 3: IMG_20220926_091047.jpg
|
|
Attachment 4: IMG_20220926_091153.jpg
|
|
2367
|
Thursday, September 15, 2022, 11:25 |
Travis Cave | Spent Target Vault | Standard Operation | | UC#38 | Spent Target Move |
The spent target UC#38 was packed into pail #274 and placed in spot 1A of the vault. It was 33.3mSv/hr when removed from the north hot cell. See attached PDF for more vault details. |
Attachment 1: Target_Index_2022-09-15.pdf
|
|
2366
|
Wednesday, September 14, 2022, 13:45 |
Adam Newsome | Spent Target Vault | Development | | | Storage Vault: cable replaced and e-chain upgrade |
The motor cable for the storage vault was replaced as the old one was showing signs of wear. The U-track that the old cable ran through was also bent as a result of being hit.
In the process of replacing the cable, an e-chain was installed for cable management purposes. Mounting brackets were modified and a new U-track was installed as well. The new hardware is more robust than what was previously installed.
The vault door was opened and closed multiple times while observing the e-chain - everything behaved as expected. The system is operational.
Solidworks model IRH0189 is updated to show the changes |
Attachment 1: PXL_20220914_183329159.jpg
|
|
2365
|
Tuesday, September 13, 2022, 14:10 |
Frank Song | ITW | Standard Operation | TM2 | UCx#39 | Module Connection |
TM2 with UCx#39 is connected in ITW. |
Attachment 1: TM2_with_UCx#39_connection_in_ITW.png
|
|
2364
|
Thursday, September 08, 2022, 09:06 |
David Wang | Conditioning Station | Standard Operation | TM2 | UCx#39 | HS 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. |
2363
|
Thursday, September 08, 2022, 07:20 |
Frank Song | North Hot-Cell | Standard Operation | TM2 | UCx#39 | electrical check |
An electrical check was done on NHC yesterday. |
Attachment 1: TM2_with_UCx#39_E_Check.png
|
|
2362
|
Tuesday, September 06, 2022, 14:05 |
Frank Song | North Hot-Cell | Standard Operation | TM2 | UCx#38 | electrical check after disconnection |
An electrical was done on the NHC for TM2 with spent Target UCx#38 on |
Attachment 1: TM2_electrical_check_on_NHC_with_spent_UCx38_on.png
|
|
2361
|
Tuesday, September 06, 2022, 13:58 |
Frank Song | ITW | Standard Operation | TM2 | UCx#38 | module disconnection |
TM2 with Target UCx38 was disconnected in ITW and moved to NHC |
Attachment 1: TM2_with_UCx38_disconnection_in_ITW.png
|
|
2360
|
Tuesday, August 23, 2022, 11:33 |
Carla Babcock | ITE | Repair | | | ITE:ANODE swapped with TCS:ANODE |
ITE:ANODE supply reading strange currents - 17mA with the power supply on and no voltage. Checked anode circuit from electrical room:
Anode wire in electrical room shows 0L at 250V
Circuit with 50kOhm resistor mostly looks good (49-52kOhms) but a couple times read 28kOhms, no idea why. Tried jiggling all cables, unplugging and replugging and everything looks fine.
But power supply still seems to be giving out signal for 17mA readback. Decided fastest to swap with TCS power supply and troubleshoot this one on the bench. |
2359
|
Tuesday, August 23, 2022, 10:51 |
Carla Babcock | ITE | Repair | TM4 | SiC#44 | TBHT to HV common short on SiC#44-TM4 |
TM4 with SiC#44 installed developed a short TBHT to HV common during its first heating in ITE. Was fine before installation. Now with everything cold TBHT to HVC is 25kOhms. Removed short in electrical room, will rely on short in the module. |