 Tuesday, October 10, 2017, 10:45, David Wang, Conditioning Station, Repair, , , Re-route TCS water lines. 8x
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TCS cooling polyurethane lines have been re-routed to solve to HV sparking issue on old configuration between lines and bais plate. New re-routed
system is tested to 70KV without spark. No leak has been found on new lines after the test.
ECO 4369, drawings and models IRH1715, IRH1716 have been issued and released for this job. Drawings and Models are located in PDM-ISAC1 -TCS polyurethane |
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Thursday, October 19, 2017, 10:11, David Wang, Conditioning Station, Standard Operation, TM4, , Leak check on TM4 HS line at SHC and TCS.
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Chad and I leak checked TM4 HS line after new target is installed yesterday. No leak has been found. Also, I helium pressurized the HS line at TCS this
morning. TM4 HS line is good on this test. The TM4 gas line configuration on TM4 top is leak check as well. No problem. |
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Thursday, November 09, 2017, 09:34, David Wang, Conditioning Station, Standard Operation, TM2, Ta#55, Leak check on TM2 HS line at SHC and TCS.
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The TM2 HS line was leak checked at SHC yesterday . 0.9xE-9 atm.cc/sec.Helium sprayed by Chad, NO leak. It was helium pressurized at TCS this morning.
Leak rat:2.5 XE-7 atm.c/sec. The result is same as last time check. No concern. |
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Thursday, November 09, 2017, 09:35, David Wang, Conditioning Station, Standard Operation, TM2, Ta#55, TM2 has been connected at TCS
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| TCS vacuum system and water system have been started as well. Everything looks fine. |
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Tuesday, November 14, 2017, 14:34, David Wang, ITW, Standard Operation, TM2, Ta#55, TM2 has been connected in ITW.
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| TM2 has been connected in ITW. All turbo-pumps are started. Everything works fine. |
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Wednesday, November 15, 2017, 08:55, David Wang, Conditioning Station, Standard Operation, , , Install shield plug onto TCS and pumping down TCS.
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| Shielding plug is installed onto TCS. TCS is being pumped down to keep it under vacuum for the rest of the year. |
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Tuesday, January 02, 2018, 10:46, David Wang, ITE/ITW Cooling, Standard Operation, , , Start High active water system.
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High active water system was checked before restart. A small water leak on resin can supply valve was found. It is fixed. MP1 and MP2 were
started and checked separately. System pressure and flow rate are normal.MP1 is in operation now. |
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Tuesday, January 02, 2018, 11:28, David Wang, ITE, Standard Operation, TM4, , ITE annual water interlock check.
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| Eric and I finished ITE annual water interlock check. Everything works properly. |
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Tuesday, January 16, 2018, 06:50, David Wang, ITE/ITW Cooling, Standard Operation, , , Field measurement on old resin tank in silo
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The old resin tank has been stored in silo since last year March. Without crane the tank up, We use the pole monitor measured the field around
the bottom of the tank in silo. The average contact field on the bottom is about 4.0msv/hr. @0.5meter , the field is about 900usv/hr. It is still
too hot to remove it. |
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Wednesday, January 17, 2018, 06:51, David Wang, Conditioning Station, Standard Operation, , , Stop TCS vacuum pumps
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| I stopped TCS vacuum pumps for coming TM3 move. |
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Wednesday, January 17, 2018, 13:54, David Wang, Conditioning Station, Standard Operation, TM3, , Start TM3 turbo pumps at TCS.
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| TM3 turbo-pumps are started at TCS. We will keep pumps running until next Wednesday. |
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Monday, January 22, 2018, 07:47, David Wang, Conditioning Station, Standard Operation, TM3, , Restarted TM3 vacuum sysytem after site power bump
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| All TCS and TM3 vacuum pumps are started successfully. |
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Wednesday, January 24, 2018, 13:30, David Wang, Conditioning Station, Standard Operation, TM1, , TM1 has been moved to TCS this morning
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| Tm1 has been moved to TCS this morning. All turbo-pumps are started successfully at TCS and TM1. |
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Monday, January 29, 2018, 06:51, David Wang, Conditioning Station, Maintenance, TM1, , TCS and TM1 vacuum pumps switched off
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TCS and Tm1 vacuum pumps are switched off this morning. TM1 TP1and TP2 work fine during this test period. Tm1 will be moved back to silo this morning.
TM1 IG1 stopped work during the test period. It could be broken. We will only replace this gauge if TM1 is used in ITW again. |
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Wednesday, January 31, 2018, 10:32, David Wang, Crane, Standard Operation, , , Target Hall crane annual inspection.
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Gordon crane technician Tom finished annual TH crane inspection today. Everything is normal. The main hoist brake gaps are checked on both side. They
are good still. |
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Wednesday, February 28, 2018, 14:47, David Wang, ITE, Standard Operation, , , leak check ITE primary and secondary vacuum vessel.
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2018-02-27: Anders and I finished leak check on ITE primary and second vacuum vessel seals. LD connected to ITE BV2 valves between. LD, Base Leak rate
1.2 xE-9atm.cc/sec, base pressure 0.0XE-4torr. There is a leak has been found on TM4 service cap KF25 blank off. The o-ring on the blank off will be changed
later. It is an easy fix . Other seals are good. The big T tank seal on secondary vessel is leak checked as well. It is still fine. Helium pressure |
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Tuesday, March 06, 2018, 09:53, David Wang, ITW, Standard Operation, TM2, , Tm2 and Tm4 vacuum disconnection
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| The job is done. See attachment. |
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Wednesday, March 07, 2018, 10:18, David Wang, ITW, Standard Operation, , , Oil leak on target station vacuum primary back pump.
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I can not see oil in sight window of the primary pump during visual inspection. The aluminum tray underneath the pump is filled with oil. The performance
on this pump start to drop by watching ITH CG4 reading. A fault report with suggestion is issued to vacuum group. Everything on secondary pump looks
fine. |
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Wednesday, March 07, 2018, 10:36, David Wang, ITE/ITW Cooling, Development, , , HALCW resin can flow meter replacment
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HALCW resin can flow meter replacement is done. Less that 100 mL water was drained to a small tray during the job. RPG checked the water. Less than 20
counts. Water are dumped the high active sump. The HALCW MP1 is started. No leak on new gauges and fittings. Old gauge is labeled , bagged,
and stored in TH. |
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Thursday, March 08, 2018, 14:10, David Wang, ITW, Maintenance, , , Two small water leak has been found in ITW.
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Two small water leaks have been found on ITW High active water system. One is from an unused 1/4" copper valve stem. another is on supply 1.5"
supply line valve body top sealing. Both of them are seeping water from seal. 1/4" copper valve will be replaced with a new one. 1.5" supply
line valve will be replaced by an old valve with all new seals. I have all spare parts in hand. At present, water supply to ITW are stooped to |
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