 Thursday, November 08, 2012, 08:42, David Wang, Conditioning Station, Standard Operation, TM1, TiC #3, TM1 TiC #3 target heat shield helium pressure check is done.
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TM1 TiC #3 target heat shield helium pressure check is done at conditioning station. Applied 80 psi helium to HS circuit for 5 minutes
. There is no response had been found on leak detector. The leak detector base LR 0.0x E-9 atm.cc/sec, and BP 0.0xE-4 torr. CS and TM1 vacuum are at low
E-6 torr range. The HS circuit is leak tight. |
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Wednesday, November 14, 2012, 10:57, David Wang, ITW, Standard Operation, TM1, , TM1connected in ITW
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| I connected TM1 in ITW yesterday. Everything is good so far. Travis was with me when i did the job. |
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Wednesday, November 14, 2012, 11:04, David Wang, ITE, Repair, TM4, , Change ITE dump water circiut flow wheel
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I changed ITE dump water circuit flow wheel due to its poor performance. The new flow wheel works fine. The signal on electrical board is strong and
constant. One shielding block on ITE was moved out for the job, and it has been moved back after the job.The ITE is ready to take proton beam. Travis was
with me when i did the job. |
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Tuesday, December 04, 2012, 13:33, David Wang, ITE, Standard Operation, TM4, UCX#5, Disconnected TM4 in ITE.
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| I disconnected TM4 in ITE. All water lines had been purged.Travis was with me . |
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Wednesday, January 02, 2013, 12:11, David Wang, ITW, Standard Operation, TM1, , I moved 5 shielding blocks from ITW to block storage area
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I moved 5 shielding blocks from ITW to block storage area for preparing the TM1 disconnection. Air sampled and swiped blocks and ITW and everything
is fine.Fiona was with me all the time during the moving. |
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Thursday, January 03, 2013, 10:05, David Wang, ITW, Standard Operation, TM1, , Disconnected TM1 in ITW.
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| TM1 has been disconnected in ITW. All water lines had been purged. Travis was with me during the job. |
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Thursday, January 10, 2013, 10:40, David Wang, ITW, Maintenance, , , Replaced all high active water system magnetic pedal wheels in ITW and ITE.
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| I replaced all high active water system magnetic pedal wheels in ITW and ITE. This is a preventive maintenance job we planned for this winter shut down. |
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Tuesday, January 15, 2013, 10:49, David Wang, ITW, Standard Operation, TM1, no target, TM1 vacuum system connection in ITW
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| I connected TM 1 vacuum system in ITW. The TM1 and ITW will be pumped out for shut down routine leak check. |
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Friday, January 18, 2013, 11:17, David Wang, South Hot-Cell, Standard Operation, TM4, dummy target, TM4 heat shield circuit leak check with dummy target on.
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Chad and i did a leak check on TM4 heat shield circuit with installed dummy target at SHC today. The leak detector is pumped to 0.0xE-9atm.cc/sec.Chad
sprayed helium twice on each VCR joints .There is no any response had been found on the leak detector during each 45 seconds waiting time. The TM4
heat shield circuit with dummy target is leak tight so far. |
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Thursday, January 24, 2013, 13:30, David Wang, ITW, Standard Operation, TM1, , ITW-TM1 2013 winter shut down leak check.
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2013 winter shut down ITW-TM1 primary vacuum vessel, secondary vacuum vessel, and water lines leak check: connected leak detector to TP2(primary and
water lines) and TP4S (secondary). base leak rate 0.0xE-9atm.cc/sec,base pressure 0.0XE-4torr. Sprayed helium to all primary vacuum seal and there is no
response on leak detector. Helium pressurized all water lines(except HS) at 70psi ,3mins.Tube heat(+) no response, tube heater(-)1.6xe-9atm.cc/sec, target |
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Thursday, February 14, 2013, 09:31, David Wang, ITW, Repair, , , ITH MP1 is replaced.
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Edi and I replaced the broken ITH MP1 in target hall with a new pump. The old pump was leak on oil. There were no oil had been left in the old pump by
checking the sight glass.Thats the reason of the pump failure.The tray which the old pump sat on was full of leaking oil ( highly contaminated
). The old pump was bagged in 3 thick plastic bags ,and the tray was cleaned before the new pump was installed. The working area had been cleaned up and |
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Thursday, February 21, 2013, 14:05, David Wang, ITW, Repair, TM1, , Disconnected EXIT1 in ITW.
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| Disconnected EXIT1 in ITW. All cables , wires and air lines are label marked. |
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Tuesday, February 26, 2013, 13:53, David Wang, Conditioning Station, Repair, TM4, , Replaced TM4 TP1
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| Bevan and I replaced TM4 TP1 today at conditioning station .The pump will be started this week when I do ITE and TM4 leak check . |
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Friday, March 01, 2013, 11:35, David Wang, ITE, Maintenance, TM4, , Leak check on ITE and TM4.
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The leak check on TM4 and ITE is done. All primary vacuum vessel , secondary vacuum
vessel on TM4 and ITE are leak tight. There is no any response had been found on leak detector(leak detector base LR 0.0xE-9 arm.cc/sec). All water
lines had been pressurized to 70 psi helium for 3 minutes. They are all perfect leak tight( I cant find even a tiny response on leak detector) except |
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Wednesday, March 06, 2013, 14:12, David Wang, ITW, Repair, , , ITW EXIT1 tank to module o-ring replacement
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ITW EXIT1 o-ring replacement is fininshed today. The ITW EXIT 1 is back to ITW.
The old o-ring lost most its elastic property and changed to stiff sqaure shape inside the slot.The flange surface around the o-ring slot was dirty.
I cleaned the o-ring surface completely before putting the new o-ring . Everything should be fine now. There will be a leak check late |
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Thursday, March 14, 2013, 07:09, David Wang, South Hot-Cell, Standard Operation, TM4, , TM4 electrical test at SHC after windown and containment box back.
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| TM4 electrical test at SHC after windown and containment box back is done. Everything is fine. |
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Thursday, March 14, 2013, 07:18, David Wang, South Hot-Cell, Standard Operation, TM4, , TM4 window cooling line leak check
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It took a long time(more than 1 hour) to pump down the TM4 window cooling line during leak check time. The base leak rate could only be
pumped to 5.8xE-9 atm.cc/sec.Base pressure is 0.0xE-4 torr which is bottom reading. Chad and i did the leak check at this base leak rate .No leak had been
found. The window cooling line is leak tight at this stage. A pressure helium test will be fulfilled in conditioning station on this cooling line later. |
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Wednesday, March 20, 2013, 08:19, David Wang, Conditioning Station, Repair, TM4, , Leak check new installed TM4 TP1 at conditioning station.
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I leak checked new installed TM4 TP1 at conditioning station. The CS vacuum gauges reading were at 1.0-1.5xE-6 torr . Leak detector base leak rate 0.0xe-9atm.cc/sec,
base pressure 0.0xe-4torr. I sprayed helium around the pump inlet flange and KF 25 pump outlet flange to pump joint. There is no response on leak
detector. The new installed TP1 is leak tight. |
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Wednesday, March 27, 2013, 11:49, David Wang, ITE, Standard Operation, TM4, Sic LIS-RFQ , Connected TM4 in ITE
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TM4 has been reconnected to ITE after the module moving. The roughing is started . The water will be supplied to ITE after testing the water
pumps . The water interlock check will be done on next week also. |
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Wednesday, March 27, 2013, 12:08, David Wang, South Hot-Cell, Standard Operation, TM4, Sic LIS-RFQ, TM4 heat shield circuit leak check with SiC LIS-RFQ target
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Chad and I did the TM4 heat shield leak check yesterday at SHC. The leak detector was pumped to 4.6 xE-9atm.cc/sec, and 0.0xE-4 torr after 1.5 hours
pumping. Chad sprayed helium twice on both VCR fittings. There is no response had been found during each 45 seconds waiting time. Since the module moved
to ITE directly,we didnt have helium pressure test this time. I would say thee heat shield circuit is leak tight. so far. |
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