 Friday, July 26, 2013, 11:06, David Wang, South Hot-Cell, Standard Operation, , , The steel shielding plug has been put on theSHC top in target hall
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| to reduce the radioactive shining from SHC Ta# 40 target. |
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Tuesday, July 30, 2013, 14:42, David Wang, ITE, Standard Operation, TM4, , TM4 has been connected in ITE.
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TM4 has been connected in ITE. All turbo pumps have been started now. The pumping down on TM4 and ITE is good so far. The water interlock check on TM4
is done,and everything is fine. The ITE IG1 still couldnt be turned on even if we replaced a new TM4 IG1 at CS. The problem is on the connecting
cable from ITE to electrical room or gauge controller. I talked with Friedhelm and vacuum group will be noticed on this problem. |
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Thursday, August 15, 2013, 07:37, David Wang, ITE, Repair, TM4, , I moved 5 shielding blocks from ITE to block storage area.
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| I moved5shielding blocks from ITE to block storage area, This is a job for preparing ITE vacuum surge investigation and leak check. |
Thursday, August 29, 2013, 06:48, David Wang, Conditioning Station, Development, TM3, , TM3 leak check in CS with new source tray. 
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A huge leak had been found on HS circuit during 60 psi helium pressurize test. Other circuits are free of obvious major leak at present .We will test
them again once the TM3 is back to CS. See attachment for details |
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Wednesday, September 11, 2013, 09:35, David Wang, ITW, Standard Operation, TM1, UCx, 5 shielding blocks have been moved to ITW
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I moved 5 shielding blocks to ITW this morning .I checked the water signals in electrical room before the moving, and everything is fine. The argon venting
systemin ITW and electrical room is ready also. |
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Wednesday, September 11, 2013, 13:43, David Wang, Conditioning Station, Development, TM3, , Started 3 turbo pumps on CS for TM3
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| TM3 has been connected in CS.Three turbo- pumps have been started. The pumping down is fine so far. |
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Friday, September 13, 2013, 07:49, David Wang, Conditioning Station, Development, TM3, , TM3 water lines leak check at CS
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I leak checked TM3 water lines at CS with 60 psi and 80psi helium. The base leak rate is 5.0xe-9 atm.cc/sec. Each circuit 3 minutes helium pressurizing
for each time test. No any respose had been found on leak detector during the test. See attachment |
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Friday, September 13, 2013, 08:05, David Wang, South Hot-Cell, Repair, TM4, , TM4 coil 1 leak check in SHC
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Leak checked TM4 coil1 in SHC with Isaac . The leak detector only can pump down to 1.5xE-7 atm.cc/sec. The leak detector got the response once the helium
valve is open, not even close to the leak area. The leak detector got a very big response when the helium probe was put close to the coil terminal block
on target front side and spray helium for 2 clicks. The leak detector got a small response when the probe was put close to water block area and spray |
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Monday, September 23, 2013, 13:55, David Wang, South Hot-Cell, Standard Operation, TM3, , window circuit leak check
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This morning, Bevan and I leak checked window circuit on TM3 at SHC after containment box was installed. It took about 20minutes to pump down the circuit
to 0.0xE-9atm.cc/sec. Bevan sprayed helium on both VCR joints and a final splash. No response had been found on leak detector. |
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Friday, October 25, 2013, 06:58, David Wang, South Hot-Cell, Standard Operation, TM4, , Leak check on TM4 target heat shield
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Maico and I leak checked HS circuit after Chad installed the target. The circuit was a little bit difficult o pump down because of residue water moister
inside. But once the moisture was pumped out, the pumping down was smooth and fast. The base leak rate 0.0xE-9 atm.cc/sec, base pressure 0.0xE-4 torr.
Maico checked helium flow before the leak test. Then,He sprayed helium to all 3 VCR fiitings on target with 2 seconds on each one, He also flushed 10 seconds |
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Thursday, October 31, 2013, 10:36, David Wang, ITW, Standard Operation, TM4, , I moved 5 shielding blocks from ITE to ITW.
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| I moved 5 shielding blocks from ITW to ITE. The ITW is configured to take proton beam. |
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Wednesday, November 06, 2013, 10:41, David Wang, South Hot-Cell, Repair, TM2, , Installed 2 turbopumps on TM2
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| Bevan and I installed 2 turbo pumps on TM2. The o- ring flanges on TM2 had been cleaned before the installation. |
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Tuesday, November 12, 2013, 09:51, David Wang, ITE, Standard Operation, TM3, , TM3 disconnection
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TM3 has been disconnected this morning and purged all HV water lines. I found the power plug for all turbo pump fans wasnt connected during
the last run. That maybe the one of the reason on that ITE TP3 failure. |
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Wednesday, November 13, 2013, 10:01, David Wang, Conditioning Station, Repair, TM2, , TM2 leak check at conditioning station
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I leak checked TM2 at conditioning station this morning. All air to vacuum seals on the top of the module are good. All water lines are pressured with
60 psi helium for minutes each. One of the tube heater + water line( 2lines for tube heater + for supply and return) has a huge response on 60 psi helium
pressurizing. The leak rate went from 6.0xE-9atm.cc/sec to maximum leak rate in 5 seconds and I saw a pressure increasing either. when I pressurize the |
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Tuesday, November 19, 2013, 14:24, David Wang, ITE, Repair, , , ITE TP3
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Hi all, The old ITE TP3 pump is moved out and the new pump is in
postion .Since this time I used a new holding ring(1 piece) insead of old 2 pieces holding ring which are thicker than new ring, the old holding
bolts are a little bit too long for the thread holes on the ITE exit 1. I have to find the right length bolts for this new holding ring. The pump |
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Tuesday, December 03, 2013, 09:58, David Wang, ITW, Standard Operation, TM4, , 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. |
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Wednesday, December 04, 2013, 11:05, David Wang, ITW, Standard Operation, TM4, Ta41#, I disconnected TM4 in ITW
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| I disconnected TM4 in ITW .The job took about 20minutes and I got 0.11 msv dose. |
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Wednesday, December 04, 2013, 11:15, David Wang, ITE, Repair, TM4, , New bolts are installed on ITE TP3.
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I installed 8 new bolts(3/8-16 UNC x1.25 STL) on the ITE TP3. The ITE TP3 replacement job is done. Everything is connected back to the pump. and
it is ready for starting. |
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Thursday, December 05, 2013, 14:55, David Wang, South Hot-Cell, Standard Operation, TM4, , Leak check on TM4 target heat shield
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Chad and I leak checked TM4 heat shied water circuit at SHC. The pumping down was very good.Base leak rate 0.0xe-9 atm.cc/sec. BP 0.0xe-4torr. Sprayed
helum twice on both VCR fittings.There is no response on leak detector. The circuit is leak tight. |
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Thursday, December 05, 2013, 14:57, David Wang, ITE, Standard Operation, TM4, , Connected TM4 in ITW
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| I connected TM4 in ITE. All turbo pumps have been started and wok fine including new TP3. Everything is good so far. |
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