Thursday, September 20, 2012, 09:16, David Wang, Conditioning Station, Standard Operation, TM1, Nb#7, TM1 Nb#7 target heat shield helium pressure check is done.
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Leak detector pumped down to base LR1.3xE-9 atm.cc/sec, and BP 8xE-3 torr. All high vacuum gauge readings at CS and TM1 are at low -6 range from 1.2xE-6torr to 4.6x E-6 torr. Applied 80 psi helium to heat shield circuit for 5minutes and there is no any response on leak detector. The heat shield circuit is leak tight. |
Tuesday, September 25, 2012, 14:33, David Wang, ITW, Standard Operation, TM1, Nb#7, TM1connected in ITW
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TM 1 is in ITW now. All connections are done. The turbo pumps had been started this afternoon. The vacuum looks good so far. The water interlock check which related to TM1 are done. They are good. All TM1 water signals are visually checked and they are strong. The rest interlock check ( MCR XT page) will be finished before shielding blocks moving. The MAA is locked and ITE is ready for proton beam. |
Thursday, September 27, 2012, 09:13, David Wang, ITE, Repair, TM4, , ITE MSP water circuit flow wheel had been replaced
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ITE MSP water circuit flow wheel was replaced yesterday due to poor performance. |
Tuesday, October 02, 2012, 11:47, David Wang, ITW, Standard Operation, TM1, Nb#7, I moved 5 shielding blocks from ITE to ITW.
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5 shielding blocks have been moved from ITE to ITW. ITW is configured to take proton beam now. |
Thursday, October 04, 2012, 11:06, David Wang, Conditioning Station, Repair, , , Replace conditioning station scroll pump in target hall
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Grant and I replaced the conditioning station broken srcoll pump with a refurbished scroll pump which is supplied by vacuum group. The replaced pump is bagged and waiting for RPG further survey in target hall . The target hall is survey after the job, and everything is fine. |
Tuesday, October 09, 2012, 10:35, David Wang, ITE, Standard Operation, TM4, NiO #1, Disconnected TM4 in ITE.
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I disconnected TM4 in ITE this morning. The heat shield circuit has been purged with air. |
Tuesday, October 16, 2012, 07:14, David Wang, Conditioning Station, Standard Operation, TM4, UCX#5, TM4 heat shield helium pressure test and electrical check at CS
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TM4 heat shield helium pressure test and electrical check were done at CS last week. The results are good. NO leak had been found on heat shield circuit.The electrical check is also good. |
Wednesday, October 31, 2012, 11:24, David Wang, ITE, Standard Operation, TM4, , Transfer five shielding blocks from ITW to ITE.
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Bevan and I transferred five shielding blocks from ITW to ITE. ITE is ready for taking proton beam. |
Tuesday, November 06, 2012, 12:08, David Wang, ITW, Standard Operation, TM1, Nb#7, TM1 disconnected in ITW
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Bevan and I disconnected TM1 in ITW this morning. The TM1 was moved to south hot cell later. |
Wednesday, November 07, 2012, 11:09, David Wang, South Hot-Cell, Standard Operation, TM1, TiC , TM1 heat shield circuit leak check with TiC target at hot cell
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Chad and i did a leak check on TM1(Lp-TiC) heat shield water circuit at south hot cell. There is no leak had been found on it. The circuit is leak tight at present. I will do helium pressure check on this circuit at conditioning station once the vacuum is good enough. |
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. |
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. |
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. |
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 . |
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. |
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. |
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. |
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. |
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. |
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 oven(-)5.8xe-9atm.cc/sec, target oven (+) 6.9xe-9atm.cc/sec, EE 5.7xe-9atm.cc/sec, MSP no response, window 7.5 xe-9atm.cc/sec.All water lines are water leak free. Two leaks had been found on secondary vacuum vessel. One is on exit 1 to tank o-ring (east side, E-N corner). The leak detector got responses from 1.4 to1.7 xe-7 atm.cc/sec scale . The test hadbeen repeated 4-5 times and confirmed the location . The second one is a small leak which is on exit 2 to tank o-ring(east side, close to E-N corner). The leak detector got responses from 1.4 to 1.8xe-8atm.cc/sec scale. The test had been repeated 3 times and confirmed the location. As the present plan. we will replace the exit1 to tank o-ring during this year shut down time. |
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