 Wednesday, June 06, 2012, 14:33, David Wang, South Hot-Cell, Standard Operation, TM1, Ta38, leak check heat shield circuit
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Chad and I did a leak check on heat shield circuit after target is installed on TM1.The leak detector pumping down is smooth. The base leak rate is 0.0xE-9
atm.cc/sec. The base pressure is 0.0xE-4torr. Chad checked helium flow downstairs and sprayed helium to each joints for 2 seconds.The first joints is good
and there is no any response on leak detector.we double checked it again and got the same result. On the second joint, Chad sprayed helium 2second. After |
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Friday, June 08, 2012, 11:07, David Wang, Conditioning Station, Standard Operation, TM1, Ta38, conditioning staion and TM1 is under TP1 and TP2 pumping now.
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I connected vacuum system to TM1 and conditioning station and started two turbo pumps yesterday. The pumping an d vacuum readings are verg good
so far(all below 5xE-6 torr). Helium pressure test on heat shield circuit will be fulfilled next week. |
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Monday, June 11, 2012, 14:41, David Wang, Conditioning Station, Standard Operation, TM1, Ta38, Heat shield helium pressure test
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Connected leak detector to TM1 and CS vacuum system. The vacuum readings on TM1 and CS:PNG1 1.3 xE-6 Torr, IG1 4.7xE-7torr, IG4(diagnostic box)1.5xE-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 5 mins . There is
no response on leak detector. The heat shield circuit is leak tight. |
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Tuesday, June 19, 2012, 16:18, David Wang, ITW, Standard Operation, TM1, Ta38, TM1connected in ITW
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Monday, June 25, 2012, 14:39, David Wang, ITW, Standard Operation, , , I moved 5 shielding blocks from ITE to ITW,
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and set up ventilation for ITW. ITW is ready for taking proton beam now. All water interlock checks for ITW are done. The ITW water signals strength
and frequency had been checked from electrical room, and everything is good. |
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Tuesday, June 26, 2012, 14:10, David Wang, South Hot-Cell, Repair, TM3, , TM3 heat shield and window circuits leak check is done.
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Chad and i did a leak check on TM3 heat shield and window circuits.Both circuits are pumped easily down to the bottom leak rate and base pressure 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
) . There is no response on leakdetecor during 45 seconds waiting time. On window circuit there are 2 VCR joints. Chad sprayed helim on these joints(2seconds |
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Tuesday, July 03, 2012, 10:50, David Wang, ITE, Standard Operation, TM4, , Disconnected TM4 in ITE.
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| I disconnected TM4 in ITE this morning. The window circuit and heat shield circuit had been purged. The general field inside ITE is about 200usv/h. |
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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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