 Monday, March 09, 2020, 14:31, David Wang, ITE/ITW, Standard Operation, , , TH emergency exit test.
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| Frank and I did the test. The emergency exit hatch on roof was opened and closed twice. Everything works fine. |
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Thursday, March 12, 2020, 13:42, David Wang, ITE/ITW, Development, , , New ITE IGLIS cables installation
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New IGLIS cables installation is done. Two bundle of new cables are pulled from ITE to electrical room. They are in one PVC conduit. The old cables are
not removed yet. I will pull old cables out when new cables are installed onto device in ITE Faraday cage. |
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Thursday, March 12, 2020, 13:48, David Wang, ITE, Repair, , , Entrance module TP1S broken piesces clean up.
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The broken pieces in ITE entrance vacuum pit are vacuumed out. At SHC, There are 4 pieces on module collimator block top, wiring scanner
top. Chad removed them out at SHC. Electrical check at module top is done by diagnostics group. Everything works fine. |
Tuesday, March 17, 2020, 12:58, David Wang, South Hot-Cell, Development, TM4, , P2N target electrical check and leak check at SHC. 
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| See attachment. Everything looks good. |
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Tuesday, March 17, 2020, 14:59, David Wang, ITE, Development, TM4, P2N, ITE turbopumps are started.
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| They work fine. Current draw on all pumps are normal. I asked operator to switch on IG1 , IG1S and PNG4. |
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Wednesday, March 18, 2020, 10:40, David Wang, ITE, Development, TM4, , TM4 P2N target connection checklist.
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| TM4 has been connected in ITE. See checklist. |
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Wednesday, May 20, 2020, 13:08, David Wang, Cooling, Standard Operation, , , Start of HALCW sysytem
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High active water pump is started. The system resistance is recovering now. Everything works fine so far. Check ITW and ITE water leak after pump
is started. Tiny very slow seep on two small ball valves pack seal. No big concern.
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Wednesday, May 20, 2020, 13:19, David Wang, ITE, Maintenance, , , Restart of ITE turbo pumps.
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PLC6 drop out in weekend caused the ITH MP1 and MP1s stopped. ITE turbo pumps were running still after that. Without back up pump, TPs started to trip
off later . I found TP1,TP3, and TP4 were tripped off this morning. And , The rest pumps ran with high current draw. Jon Aoki restarted
back up pumps and ITE turbo pumps. The ITE vacuum system works fine now. |
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Wednesday, May 20, 2020, 13:30, David Wang, Safe Module Parking, Maintenance, , , Silo area radio active waste clean up.
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Sorted and packed one 55 gallon drum with low contamination and active stuffs which are placed around silo area in the past. They include old poly water
cooling lines replaced from ITE, ITW and TCS, contaminated paper rags , gloves, and plastic bags,air cooling fans for turbo pumps, EE resistor packaged
used on module top before, flow meters and cables used in ITW, etc. After packing, The field outside the drum on contact is less than 10 usv/hr. |
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Friday, May 22, 2020, 13:26, David Wang, ITW, Repair, , , ITW water leak.
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A water leak was found on a fitting connecting ITW dump return line pressure gauge on top of exit module. TM tank flange, o-ring slot and o-ring were
contaminated by water and water rust. Frank and I cleaned the flange and o-ring slot . We changed a new TM tank o-ring, vacuumed around other 3 module
flanges. The leak fittings with pressure gauges were removed . I put a blind cap on removed fitting spot.. Water are switched back to ITW. No leak on blind |
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Monday, June 01, 2020, 12:40, David Wang, Crane, Maintenance, , , TH crane festoon cable maintenance
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| Tom Kauss corrected the TH crane festoon cable loops. He lubricated festoon cable wheels as well. The maintenance is done. |
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Monday, June 01, 2020, 12:46, David Wang, ITE, Maintenance, , , ITH:CM6 ,CM6S and ITM:CM3 calibration.
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Edi calibrated ITH:CM6, CM6S and ITM:CM3. By the same time, ITH:MP1 and MP2 lubricate oil level are checked. Everything looks fine. No oil
leak on both pumps. |
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Thursday, June 04, 2020, 10:40, David Wang, Conditioning Station, Maintenance, , , Three manual valves are closed on TCS water system
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Three manual valves are closed on TCS water system return line in experimental hall. See attachments. It is for TCS TK2 water level slow drop trouble
shooting. These valves will be opened again right after troubleshooting.
TCS TK2 water level no change(11.1 inches) in this week after valves are closed. I will keep these three valves closed for one more week. |
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Thursday, June 04, 2020, 10:51, David Wang, Conditioning Station, Standard Operation, , , TH floor mop up.
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Jason Sargeant mopped up TH floor this morning. The mop head was checked after the job. There are 1500 counts on it. He think this level is reasonable
low. 3000 counts would be normal in past. |
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Thursday, June 11, 2020, 11:49, David Wang, ITE, Maintenance, , , ITW and ITE thermocouple status.
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ITW - 2A2
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Thursday, June 11, 2020, 12:36, David Wang, Safe Module Parking, Repair, TM3, , TM3 containment box and service tray field measurement.
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At 15cm distance: Containment box window 21msv maximum.
Service tray 8.0msv maximum.
At 0.5 meter
distance 360degree rotation: containment box high 10msv, low 4.3msv.
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Wednesday, June 17, 2020, 09:53, David Wang, South Hot-Cell, Standard Operation, TM2, C#1, C#1 target electrical check and leak check at SHC.
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| Target to HS is 400 ohm. The rest check is good. See attachment. |
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Thursday, June 18, 2020, 13:22, David Wang, ITW, Standard Operation, TM2, C#1, Remove of TM2 from ITE to SHC.
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| Remotely remove TM2 from ITW to SHC. The move is good. Shielding plug is put back to ITW. |
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Thursday, June 18, 2020, 13:25, David Wang, ITE, Standard Operation, TM4, P2N test., Disconnect TM4 in ITE.
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| TM4 has been disconnected in ITE. Vacuum pumps and gauge are not disconnected yet. |
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Friday, June 19, 2020, 11:21, David Wang, ITE, Repair, TM4, P2N test., ITE TP3 is replaced.
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| ITE TP3 is replaced. ITE is under vacuum again. All turbo pumps are started successfully. Current draw on pumps are normal so far. |
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