 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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Friday, May 05, 2017, 19:36, Aurelia Laxdal, Conditioning Station, Repair, TM3, no target, TM3 HV test at TCS up to 65kV
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Today TM3 HV conditioning went up to 65kV. I'll leave it here over night. ISAC OPS have instructions to keep an alarm on the HV, and ion gauge and turbo
pump (TP2 tripped 3 times due to sparking). |
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Friday, May 05, 2017, 11:53, David Wang, Conditioning Station, Repair, TM3, , sparking on TM3 serice cap top.
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Sparking was found this morning inside HV cover on TCS in TH while TM3 was HV conditioning at TCS. The TCS bias was set to 50KV when I found this spark.
It sparks between HV cover front side wall to a KF 25 clamp on HS water terminal. The KF 25clamp is used in this situation on HS water line top because
the HS line is opened inside module, and we need a vacuum seal on the top of this line. Actually, The clap is much smaller than the corona ring on |
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Friday, May 05, 2017, 11:06, David Wang, Crane, Standard Operation, TM3, , TH crane is used for 5 shielding blocks transferring.
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TH crane is used for transferring five shielding blocks(30000lbs) today. All brakes work fine. Mostly, I do not need crane slow up motion for
this job so during 1 hour moving, no rattle sound and burning smell has been found. I think TH crane is good to use as we decided. |
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Thursday, May 04, 2017, 19:10, Aurelia Laxdal, Conditioning Station, Repair, TM3, no target, TM3 HV test at TCS up to 50kV
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Today TM3 was conditioned up to 50kV. At 50kV sparking started and to go higher in voltage it needs more conditioning time. Lowered it to 49kV for the
night. |
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Thursday, May 04, 2017, 14:06, David Wang, Conditioning Station, Repair, TM3, , A vacuum to air leak on TM3 service cap round side panel was found and fixed..
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During TM3 roughing down yesterday afternoon,The vacuum gauges CG1 and CG1S stopped at 1.20 torr and refused to drop down. Leak detector was used to
found where the problem was. LD was in rough detecting mode and showed 2.7xE-6 atm.cc/sec as base leak rate. Spray medium amount of helium to TM3
service top, and found this leak was on round panel of TM3 side wall. LR climbed to E-4 atm.cc/sec range on helium spraying. In my vie,One 10# socket head |
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Tuesday, May 02, 2017, 18:33, Aurelia Laxdal, South Hot-Cell, Repair, TM3, no target, TM3 HV tests at atmosphere for Each Line(s) after the Fiber Glass removal May 2, 2017
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Today a HV test at atmosphere was performed for Each Line(s), while floating the other lines. THIS TEST AT ATMOSPHERE IS THE FIRST ONE AFTER THE FIBER
GLASS WAS REMOVED.
Please note: |
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Tuesday, May 02, 2017, 13:49, Travis Cave, Spent Target Vault, Standard Operation, , , Spent Targets moved
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Five spent targets have been moved from the target storage vault to the mini vault in preparation for Thursdays loading of the F-308s. See attached for
the list of targets in the mini vault, and the new status of the storage vault. |
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Tuesday, May 02, 2017, 09:48, Isaac Earle, North Hot-Cell, Development, , , NHC polycarbonate window cover panel installed
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The window cover panel has been installed on the hot side of the NHC shielding window according to drawing IRH1638. It was necessary to drill
and tap a hole in the steel frame first to achieve proper grounding for stud welding. The strength of all studs were checked by installing a nut
on the stud tightened against a block up against the steel frame, which was then torqued to a minimum of 10 ft*lbs. For the final installation the |
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Monday, May 01, 2017, 13:11, David Wang, South Hot-Cell, Repair, TM3, , Electrical Check on TM3 after fibergalss is moved in SHC.
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RU( coil 1), F (anode), and 60kv bias(HS, Gasline, and MSP) are shorted together. Other lines are good. They are measured between individual
line each other @500V. The megga showed OL. All of them to ground are OL @500V as well. EL is grounded during check. |
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Monday, May 01, 2017, 12:32, David Wang, Crane, Repair, , , TH crane burning smell
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TH crane burning smell showed again this morning. It appeared after 1-1.5 hours of continuously using during the F308 flasks moving in TH.After a certain
time of using I think the brake gap is reduced because of thermal expansion. The main hoist and brakes work fine still. We knew these brakes gap
are tight especially on west side. So, It is not surprised that this burning smell appeared again. It does not affect the safe of crane use in my view. |
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Monday, May 01, 2017, 08:53, chad fisher, South Hot-Cell, Repair, TM3, , Fiberglass removal
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| Fiberglass, capton tape and tie straps have been removed from TM3. |
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Sunday, April 30, 2017, 20:57, Aurelia Laxdal, South Hot-Cell, Repair, TM3, no target, TM3 May 1-15, 2017 Tentative Schedule at the SHC and TCS
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| Please see attachment for TM3 May 1-15, 2017 Tentative Schedule at the SHC and TCS. |
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Friday, April 28, 2017, 12:04, Anders Mjos, Conditioning Station, Maintenance, , , MP1 problem
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TCS:MP1 was tripping of intermittently yesterday. It was found by Dave Morris that the current sensor was not set correctly causing the pump on status
to flicker at times. Dave adjusted the settings yesterday. The system should be operational and is currently running normally. |
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