 Wednesday, July 04, 2012, 13:18, David Wang, Conditioning Station, Standard Operation, TM4, uo#3, leak check on heat shield circuit
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Chad and I
leak checked the heat shield circuit after uc#3target installed. It took 5minutes to pump down the circuit to the leak detector bottom scales. All
the vacuum lines and connections are leak checked by spraying helium. Chad sprayed helium to each vcr fittings for 2 seconds. There is no any response |
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Friday, July 06, 2012, 14:38, David Wang, Conditioning Station, Standard Operation, TM4, UO#3, TM4 UO#3 target heat shield helium pressure check is done.
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Connected leak detector to TM4 and CS vacuum system. The vacuum readings on TM4 and CS:PNG4 3.6 xE-6 Torr, IG1 2.3xE-6torr, IG4(diagnostic box) 3.9xE-6
Torr. Leak detector base pressure:6.0xE-3 torr, base leak rate: 1.0xE-9 atm.cc/sec. Applied 80 psi helium to heat shield circuit for 5 mins . There is
no response on leak detector. The heat shield circuit is leak tight. |
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Monday, July 09, 2012, 16:08, David Wang, ITE, Standard Operation, TM4, UO#3, ITM4 in ITE connected and pumping down
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Thursday, July 26, 2012, 08:33, David Wang, ITE, Standard Operation, TM4, , I moved 5 shielding blocks from ITW to ITE thisTuesday morning .
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All water interlock checks for ITE had been done. The ITE water signals strength and frequency(Espcially on MSP circuit) had been checked from
electrical room, and everything is good. |
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Tuesday, July 31, 2012, 09:52, David Wang, ITW, Standard Operation, TM1, Ta38, TM1 disconnected in ITW
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| I disconnected TM1 in ITW. Heat shield line has been purged . |
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Tuesday, July 31, 2012, 12:50, David Wang, South Hot-Cell, Standard Operation, TM1, UC x, TM1 heat shield circuit leak check with UC x target
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Chad and i did a leak check on TM1heat shield with UCx target on.The circuit are pumped down to the bottom leak rate and base pressure is 3xE-3
torr on the leak detector. There are two VCR caps on heat shield circuit. Chad sprayed helium on both of them ( tested individually,2 seconds
every time ) . The test repeated 1 time.There is no response on leak detector during 45 seconds waiting time on both time.Chad flushed helium around the |
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Thursday, August 02, 2012, 07:48, David Wang, Conditioning Station, Standard Operation, TM1, UCx, TM1 UCx target heat shield helium pressure check is done.
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Connected leak detector to TM1 and CS vacuum system. The vacuum readings on TM1 and CS:PNG4 3.6 xE-6 Torr, IG1 1.1xE-6torr, IG4(diagnostic box) 3.4xE-6
Torr. Leak detector base pressure:0.0xE-4 torr, base leak rate: 0.0xE-9 atm.cc/sec. Applied 80 psi helium to heat shield circuit for 4 mins . There
is no response on leak detector. The heat shield circuit is leak tight. |
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Tuesday, August 07, 2012, 14:06, David Wang, ITW, Repair, , , ITW TP4S has been replaced
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Tuesday, August 14, 2012, 14:27, David Wang, ITW, Standard Operation, TM1, UCx, TM1connection in ITW
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| Connected TM1 in ITW,started 6 turbo pumps, and finished TM1 water interlock check . Every thing is good so far. |
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Monday, August 20, 2012, 12:28, David Wang, ITW, Standard Operation, TM1, , I moved 5 shielding blocks from ITE to ITW,
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| I moved 5 shielding blocks from ITE to ITW.ITW is configured to take proton beam now. |
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Thursday, August 23, 2012, 07:34, David Wang, ITW, Repair, , , Replaced broken air lines on ITW HARP5B cylinder.
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Prob guys replaced broken air lines on ITW HARP 5B Cylinder.Several shielding blocks had been moved out to make the cylinder accessible. After the replacement,the
HARP5B works fine.All shield blocks had been moved back to original position. The job is done. |
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Thursday, August 30, 2012, 13:57, David Wang, ITE, Standard Operation, TM4, , Disconnected TM4 in ITE.
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| I disconnected TM 4 in ITE on AUG 29th morning.The vacuum lines stay untouched and they will be disconnected on SEP 04th. |
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Tuesday, September 04, 2012, 14:34, David Wang, South Hot-Cell, Standard Operation, TM4, NiO #1, TM4 heat shield circuit leak check with NiO#1 target
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Chad and i did a leak check on TM4 heat shield circuit with new NiO#1 target installed. It took about 40 mins(much longer than usual) to pump down the
circuit to leak rate 0.6x E-9atm.cc/sec and 0.0x E-4 torr o leak detector.
All vacuum lines and joints which connected to the leak detector had been helium sprayed and they are leak tight.Chad sprayed helium on each |
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Friday, September 07, 2012, 08:54, David Wang, Conditioning Station, Standard Operation, TM4, NiO #1, TM4 NiO #1 target heat shield helium pressure check is done.
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leak detector pumped down to 0.0xE-9 atm.cc/sec, and 0.0xE-4 torr. All high vacuum gauge readings at CS and TM4 are at low -6 range from 2.2xE-6torr
to 4.2x 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. |
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Wednesday, September 12, 2012, 07:00, David Wang, ITE, Standard Operation, TM4, NiO #1, ITM4 in ITE connected and pumping down
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TM4 had been connected in ITE. Six turbo pump had been started . thepumpming diwn is very good so far. The water interlock check on ITE and TM4 had been
finished and everything is good.All water signals are strong and constant by visually checking. |
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Wednesday, September 12, 2012, 11:59, David Wang, ITW, Standard Operation, TM1, UCx, TM1 disconnected in ITW
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I removed 5 shielding blocks from ITW to block storage area, and disconnected TM1 in ITW. After UCx run, the radioactive level around the turbo
pumps and primary vacuum lines are pretty high. This affect the general field inside the ITW pit around working area.i took 15 minuts to finish the job
and i got 0.1msvr dose. the general field around my working area is about 350 usv/h. |
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Tuesday, September 18, 2012, 13:41, David Wang, South Hot-Cell, Standard Operation, TM1, Nb#7, leak check heat shield circuit
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Chad and i did a leak check on TM1 heat shield circuit with new Nb#7 target installed. It took about 5 mins pump down the circuit to leak rate 0.0x
E-9atm.cc/sec and 0.0x E-4 torr on leak detector.
All vacuum lines and joints which connected to the leak detector had been helium sprayed and they are leak tight. Chad sprayed helium on |
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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. |
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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. |
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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. |
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