 Monday, January 22, 2024, 09:56, David Wang, ITW, Standard Operation, , , Entrance module has been connected in ITW pit.
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Entrance module has been connected in ITW pit per document 190510 " entrance module disconnection and removal procedure".
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Monday, January 22, 2024, 10:16, David Wang, ITE, Standard Operation, TM4, UCx#, Tm4 waterlines helium pressure test and TM service cap helium leak check.
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Tm4 waterlines helium pressure test and TM service cap helium leak check was done last Friday. All water lines were pressurized with 70psi helium for
3 minutes each. The 3 minutes stable leak rate on all lines are less than 4.0 X E-9atm.cc/sec. some of lines had surging leak rate to 2xE-8 atm.cc/sec
at the first 10 seconds of pressurization which should be a gas hammer result at the beginning. Based on the numbers, I would say all water lines are leak |
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Thursday, January 25, 2024, 07:27, David Wang, Crane, Standard Operation, , , Inspection of target module lifting frames ITA0494-1997-01 and ITA0494-1997-02
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Tom Gauss inspected two target module lifting frames ITA0494-1997-01 and ITA0494-1997-02 yesterday. He certified the use of these two frames
for 2024. Inspection tags have been issued and attached to frames. He has inspection record on them. |
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Thursday, January 25, 2024, 07:31, David Wang, Crane, Standard Operation, , , Inspection oftareg hall crane below hook attachment pins and plates ITA6550-01
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Tom Kauss inspected target hall crane below hook attachment pins and plates ITA6550-01 yesterday. He certified the use of these pins and plates for
year 2024. The inspection of these pins and plates was in Target hall crane annual check list. It was issued as a calibration index by Isaac Earle
in 2022-Feb-08. After inspection, The inspection tag was issued and attached to pin. Tom has an inspection record on this job. |
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Friday, January 26, 2024, 08:30, David Wang, South Hot-Cell, Standard Operation, TM4, , window line VCR leak check after containment box removal/installation.
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Chad and I did window line VCRs leak check after containment box removal/installation. The first pair of VCRs have leak. Chad changed
VCRs. Both VCr fittings on window lines are completely leak free to 0.0 XE-9 atm.cc/sec now. |
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Friday, January 26, 2024, 11:53, David Wang, Safe Module Parking, Standard Operation, TM4, , Tm4 has been moved to SMP.
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| TM4 has been moved to SMP. The move is smooth. I started SMP vacuum pump. The TM4 and SMP vessel is under vacuum now. |
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Friday, January 26, 2024, 11:57, David Wang, Safe Module Parking, Standard Operation, TM4, , TM4 coil1, 2, and HS electrical check at SMP after module moving.
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TM4 coil1, 2 and HS are all OL at 250V at SMP after module move. This week, Chad and Carl fixed short issue on coil1, 2 and HS by insert dropped ultem
ring back to position at SHC. |
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Friday, February 02, 2024, 07:48, David Wang, ITE, Standard Operation, TM4, , ITE primary and secondary vacuum vessel leak check.
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ITE primary and secondary vacuum vessel leak check has been done. SST bellow for 2A3M19 wire scanner on entrance module top has a big leak to E-5
atm.cc/sec on tiny helium spray. The bellow will be replaced in March by probe group. The LD base leak rate is affected by this big leak so i cant keep
the LD scale at 0.0Xe-9 atm.cc/sec during the leak check. Other seal are leak free to 8XE-9 atm.cc/sec. I have no big concern on ITE vacuum seals status |
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Tuesday, February 06, 2024, 13:28, David Wang, ITW, Maintenance, , , ITW exit 1 module has been disconnected and reconnected for o ring replacement
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ITW exit 1 module was disconnected for Exit module flange o -ring replacement yesterday. After oring replacement, the module has been reconnected.
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Tuesday, February 06, 2024, 13:36, David Wang, ITW, Maintenance, , , ITW exit 1 module tank flange o ring has been replaced.
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ITW exit 1 module tank flange o ring has been replaced. the old o r-ing was completely flat in slot without elastic property. tank flange, module
flange, and o ring slot were clean by acetone and canister vacuumed. Raised up module 3 feet and pulled new o-ring over module top so new o ring could
be installed without moving module out. after new o ring installation, craned down module to flange and raised up module 2 feet again to confirm |
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Thursday, February 15, 2024, 13:52, David Wang, ITW, Standard Operation, , , ITW entrance module and exit 1 module leak check after module move and tank flange orings replacement.
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ITW entrance module and exit 1 module leak check on module service cap/top air to vacuum seals and module to tank flange o-rings have been
done. all seals and o rings are leak free to 0.0 xE-9atm.cc/sec except one leak ( to low E-6 atm.cc/sec) on ITW RV4 KF50 o-ring was found. It caused by
a cross o ring surface scratch on KF 50 flange. the scratch was sanded and polished out. on second time leak check, it is leak free. |
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Friday, February 16, 2024, 11:48, David Wang, Cooling, Maintenance, , , high active water transferr to holding tank
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100 liters of high active water from HALCW system( mostly from s-tank and pipe lines closing to pumps) are transferred to holding tank in 2A tunnel.
Transfer is smooth. it is a preparation job for ITC:MP1/MP2 refurbishment. water sample is passed to RPG for assay. |
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Friday, February 23, 2024, 06:36, David Wang, ITE, Maintenance, , , ITE entrance module has been disconnected.
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| ITE entrance module has been disconnected per document 190510. Its a preparation job for next month module moving out to SHC. |
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Thursday, March 14, 2024, 14:54, David Wang, ITE, Maintenance, , , ITE entrance module has been moved from ITE pit to TCS.
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ITE entrance module has been moved from ITE pit to TCS. The move is smooth.ITE entrance module top tank flange and o ring slot are cleaned, and old o
ring are replaced. |
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Monday, March 25, 2024, 10:53, David Wang, ITE, Repair, , , ITE entrance module has been moved from TCS to ITE.
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| ITE entrance module has been moved from TCS to ITE. The move is smooth. |
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Monday, March 25, 2024, 10:55, David Wang, ITE, Standard Operation, , , ITE entrance module has been reconnected in ITE pit.
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| ITE entrance module has been reconnected in ITE pit per document 190510. |
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Wednesday, March 27, 2024, 09:49, David Wang, South Hot-Cell, Standard Operation, TM3, , Tm3 has been moved to SHC from silo.
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| Tm3 has been moved to SHC from silo. the move is smooth. |
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Wednesday, March 27, 2024, 09:52, David Wang, ITE, Standard Operation, , , ITE entrance module top and module flange o-ing to tank have been leak checked.
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| ITE entrance module top and module flange o-ing to tank have been leak checked. no leak at 0.0xe-9 atm.cc/sec. things are double checked. |
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Thursday, March 28, 2024, 09:26, David Wang, South Hot-Cell, Standard Operation, TM3, , Tm3 has been moved from SHC to silo.
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| Tm3 has been moved from SHC to silo. The move is smooth. |
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Thursday, April 04, 2024, 13:10, David Wang, Cooling, Maintenance, , , high active water refurbishment, reinstallation, and test operation.
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both high active pumps ITC:MP1 and MP2 are refurbished by RH group Maico and Peter. Pumps have been installed back to system with new inlet/outlet flange
gaskets. high active water surging tank is refilled with water and pumps were primed. I asked operator to switch on pumps separately. Both pumps work fine.
They are quiet and pumps discharging pressure is a little bit better comparing to before refurbishment. Nitrogen gas is injecting into system. O2 level |
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