 Friday, May 19, 2017, 13:49, David Wang, Conditioning Station, Repair, TM4, , TM4 TP1 at TCS
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TM4 TP1 is replaced. TCS and TM4 was argon vented before the job.The job took about 30minutes. I started the all turbo pumps after job. All pumps
work fine. The TCS vacuum is good. |
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Friday, May 19, 2017, 12:25, David Wang, Conditioning Station, Standard Operation, TM4, , TCS and TM4 water flow measurement.
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Thursday, May 18, 2017, 11:36, Travis Cave, Conditioning Station, Standard Operation, TM4, UC#20, Electrical Check 
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| Electrical check of TM#4 with UC#20 at the conditioning station under vacuum. See attached for details. |
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Thursday, May 18, 2017, 10:41, Travis Cave, Spent Target Vault, Standard Operation, , UC#19, Spent Target move
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The spent UC#19 target has been moved from the south hot cell into the spent target storage. It was placed in pail #145 and put in tray one spot C. See
attached PDF for all vault details. |
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Thursday, May 18, 2017, 10:08, David Wang, Conditioning Station, Standard Operation, TM4, , TM4 TP1 at TCS
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TM4 TP1 was found making some noise during operation this morning. The current draw was check then. It was 1.8 A which is higher than 1.0A normal range.
The pump body temperature was higher by hand feeling. But,1.0 hour later when checking again, everything on the pump goes back to normal. It is still fine
so far. I will watch on this pump closely. |
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Wednesday, May 17, 2017, 08:35, David Wang, Conditioning Station, Standard Operation, TM4, , TCS turbo pumps was started yesterday
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Anders started TCS turbo-pumps yesterday. The TCS and TM4 pumping down is good so far. I started TCS water pumps this morning for TCS water flow check.
2017-05-17 morning: Stopped the water pumps. The field around the TM4 is high because of spent target in SHC. The water flow measurement
will be delayed to this Friday. |
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Wednesday, May 17, 2017, 08:31, David Wang, South Hot-Cell, Standard Operation, TM4, , Leak check on TM4 HS line at SHC
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Chad and I finished leak check on HS line with UCx target installed on it. Base Leak rate:0.0X 10^-9 atm.cc/sec, Base pressure 0.0X 10 ^-4 torr.
Sprayed helium to VCR joints. No leak has been found . The line will be pressurized with helium at TCS.
Helium pressure test on TM4 HS line is done at TCS. BLR 0.0XE-9 atm.cc/sec. 70psi helium , 2 minutes. No response. The line is leak free. |
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Tuesday, May 16, 2017, 14:19, Travis Cave, Conditioning Station, Standard Operation, TM4, UC#20, module moved
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| TM#4 with UC#20 has been moved from the south hot cell to the conditioning station. |
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Tuesday, May 16, 2017, 14:18, Travis Cave, South Hot-Cell, Standard Operation, TM4, UC#20, Electrical Check
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| TM#4 with UC#20 has had the electrical check done on it at the south hot cell, see attached for details |
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Tuesday, May 16, 2017, 13:23, chad fisher, South Hot-Cell, Standard Operation, TM4, UC#20, UC#20 Installed
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UCx#19 has been removed from TM4 and UCx#20 installed.
UCx#19 still had water in it at pressure and sprayed when the VCR was undone. It was quickly re-tightened but not before significant water pooled
beside the main Mykroy standoff and table. Contacted Anders would suggested to soak it up with some wipes and continue, which I did. |
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Tuesday, May 16, 2017, 10:28, Travis Cave, South Hot-Cell, Standard Operation, TM4, UC#19, module moved
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| TM#4 with UC#19 has been moved from ITE to the south hot cell. |
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Friday, May 12, 2017, 07:42, David Wang, Crane, Repair, , , TH crane burning smell, smoke, and big noise on east side main hoist brake assembly.
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This morning, when I prepare for today's crane check, The crane made a very strong noise without any load during the full speed up motion. I stopped
the crane right away, and noticed that east side of main hoist motor area was smoking . The crane was moved to east end. And, I climbed up to the top,
and found the smoke is coming form brake side, and should be produced by braking. The smell is same as before.Unless other thing is wrong, I think |
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Thursday, May 11, 2017, 16:10, Isaac Earle, North Hot-Cell, Development, , , NHC roof block to TH north wall gap sealed
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The gap between the north face of the NHC roof block and the target hall north wall in the area where the NHC inlet ducting will be installed has
been sealed with Sikaflex 1a flexible polyurethane sealant applied over foam backer-rod. |
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Wednesday, May 10, 2017, 14:00, Anders Mjos, South Hot-Cell, Development, , ITE-Ta-LP-FEBIAD, Test target examination
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Chad and Anders inspected the test target in the hot cell today. The lid had been previously removed.
The EE looked to have performed well.
A piece of Ta foil was found inside the heat shield. It is not clear if this
has been there during operation or if it entered the heat shield while in the hot cell. The foil has markings which indicate that it has seen heat.
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Wednesday, May 10, 2017, 13:42, Anders Mjos, Conditioning Station, Repair, , , Leaky gauge at TCS:TS2 (e-fault: 9609)
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| Neil Wong will fix this leak tomorrow Friday. See attached schematics for location. |
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Tuesday, May 09, 2017, 12:45, David Wang, Conditioning Station, Repair, TM3, , TM3 service tray side panel is cleaned and installed back to TM3
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TM3 service tray side panel is cleaned and installed back to TM3 this morning. I visually inspected service tray insulators. Nothing is changed comparing
to inspection before.Nine screws are installed on panel to hold it onto TM3. |
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Tuesday, May 09, 2017, 07:00, David Wang, Conditioning Station, Repair, TM3, , Follow up Aurelia's entry, TM3 and TCS current limits investigation.
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Aurelia and I investigated this current limit issue May 8th. First, By separating TM3 from TCS. we found the problem is on TCS side. We did a Megga
test on TM3 as well. TM3 is good at 1KV megga test. After that, The insulators between TCS to ground is test. they are good which could hold 1G ohm at
1000V megga test. So the problem should be on power supply side including power supply itself ,cables and transformer. Later, Tom and John found |
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Monday, May 08, 2017, 14:46, Travis Cave, Spent Target Vault, Maintenance, , , Mini Vault Door
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Mini Vault Door as some difficulty over coming a small hump on its track. To open the door one needs to give the door a slight tug while
it is opening to over come this hump. |
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Monday, May 08, 2017, 09:49, David Wang, Conditioning Station, Standard Operation, , , TH schedule 132 update weekly
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| Update TH schedule weekly to show the job process. |
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Saturday, May 06, 2017, 13:30, Aurelia Laxdal, Conditioning Station, Repair, TM3, no target, TM3 current limiting
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Today the voltage was raised from 65kV to 65.7kV. After about 10min at this level TM3 started current limiting. TM3 was not sparking when this happened.
ISAC OPS turned it OFF and then tried to ramp it back ON, but could not do it due to the current limiting.
I turned OFF/ON the PS (locally) 20ming ago and and then tried to get it back from the Control Room, but around 4-5kV it started current limiting. |
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