 Wednesday, October 22, 2014, 09:41, David Wang, Conditioning Station, Development, TM3, , TM3 has been disconnected at CS.
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| TM3 has been disconnected at CS. It is vented and ready to move. |
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Tuesday, November 04, 2014, 11:05, David Wang, South Hot-Cell, Standard Operation, TM1, ThO#1, Leak check on TM1 HS water line withThO#1 installed.
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Chad and I leak checked HS line on TM1 with ThO#1 target installed. The LD pumped down to base leak rate 0.0xE-9 atm.cc/sec, base leak rate 0.0xE-4 torr.
The pumping down process is normal. Chad sprayed helium on both VCR joints (each for 2 seconds) , and he did a flush spray around the target for 5 seconds.
No any response had been found on LD during and after the spray( 40seconds waiting time). The target is leak tight. |
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Thursday, November 06, 2014, 08:07, David Wang, ITW, Standard Operation, TM1, ThO#1, TM1 has been connected in ITW.
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| TM1 has been connected in ITW. All turbo pumps are started. The pumping down on ITW is good so far. The water is supplied to TM1 for HV conditioning. |
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Thursday, November 06, 2014, 08:55, David Wang, ITW, Repair, TM1, ThO#1, primary vacuum back up pressureITH CG1 ,CG2,CG4A were high.
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I found primary vacuum back up pressure ITH CG1, CG2, and CG4A were unusually high this morning. They should be about 10 -20 mtorr after one night pumping,
but all of thier reading were 340-350-mtorr. Thease cause the current draw on primary turbo pumps were all over 2.0A(should be about 1.0A). I let Paul
closed all BVs on primary side . The pressure dropped quickly to normal range after all BVs were closed. This shows the back up line are good. The problem |
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Thursday, November 06, 2014, 13:43, David Wang, Conditioning Station, Development, TM3, , CS vacuum system has been connected to TM3.
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| CS vacuum system has been connected to TM3 for control system test(Dave.Morris). |
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Thursday, November 13, 2014, 13:52, David Wang, ITW, Standard Operation, TM1, ThO#1, 5 Shielding blocks have been transferred from ITE to ITW.
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| Dan and I transferred 5 shielding blocks from ITE to ITW. The ITW is configured to take proton beam. |
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Thursday, November 13, 2014, 14:01, David Wang, ITW, Repair, TM1, , I replaced flow wheel and coil on ITW MSP water flow sensor.
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I replaced flow wheel and coil on ITW MSP water flow sensor which is located in ITW pit. Before replacement, I checked the signal strength and frequency
form e-board on this circuit. The signal was good in 10minutes watching. Still, I replaced them. The flow sensor works fine after replacement. I made a
comment on Isac e-fault system about this issue. |
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Thursday, November 13, 2014, 14:05, David Wang, ITE, Repair, TM4, , Dan and I replaced flow wheel on ITE HVC2 water flow sensor.
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| Dan and I replaced flow wheel on ITE HVC2 water flow sensor. The old wheel did rotate smoothly inside its SST case. The new wheel works fine. |
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Tuesday, November 18, 2014, 11:14, David Wang, South Hot-Cell, Standard Operation, , UCx11, crane down UCx 11 target into SHC from TH
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I craned down UCx11 target from TH into SHC. Chad was in SHC service area watching on it. The source tray moving jig was installed on the crane for this
moving. |
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Tuesday, November 18, 2014, 11:15, David Wang, ITE, Standard Operation, TM4, Ta#44, TM4 has been disconnected in ITE.
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| Dan and I disconnected TM4 in ITE. |
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Wednesday, November 19, 2014, 11:12, David Wang, Conditioning Station, Standard Operation, TM4, , CS roughing pump is started.
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| CS roughing pump is started for TM4 and UCX 11 target. |
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Thursday, November 20, 2014, 14:12, David Wang, ITE, Standard Operation, TM4, UCx11, TM4 is connected in ITE.
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| TM4 has been connected connect in ITE. Water is supplied to TM4 module only. |
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Thursday, November 20, 2014, 14:13, David Wang, Conditioning Station, Standard Operation, TM4, UCx11, CS and TM4 was vented with Argon gas
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| CS and TM4 was vented with Argon gas this morning before it was moved from CS to ITE. |
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Tuesday, November 25, 2014, 11:33, David Wang, South Hot-Cell, Development, , , Remove UCX 11 target transfer stand from SHC back to TH.
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The stand was used for transferring UCX11 targte from TH to SHC. The stand wit target was craned down from TH into SHC last week and stayed there over
weekend. Chad and I removed the stand out of SHC yesterday. It was heavily contaminated. RPG and I spent more than 3 hours to clean this stand. See the
emails I pasted below for detail information. |
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Tuesday, November 25, 2014, 12:45, David Wang, ITE, Standard Operation, TM4, UCx11, 5 Shielding blocks have been transferred from ITW to ITE.
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| 5 Shielding blocks have been transferred from ITW to ITE. The ITE is configured to take proton beam. |
Tuesday, December 02, 2014, 13:33, David Wang, South Hot-Cell, Development, TM2, , Leak check on TM2 tube heater +(D) at SHC 
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Chad and I leak checked TM2 tube heater+(D) circuit at SHC with water bypass loop and new seals installed on the water block. The LD base LR 0.0xE-9
atm.cc/sec,base pressure0.0xE-4 torr. Chad sprayed helium on the leak check area in SHC for 5 seconds. No any response has been found on LD during 1minutes
waiting time. The test was repeated again and the result is same. NO LEAK at this stage! After the TM2 is moved to CS , The D line will be pressured |
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Thursday, December 04, 2014, 16:37, David Wang, Conditioning Station, Development, TM2, , connected TM2 and CS vacuum system .
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| I connected TM2 and CS vacuum system. All vacuum pumps on TM2 and CS are started .The pumping down is good so .far |
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Friday, December 05, 2014, 07:47, David Wang, Conditioning Station, Development, TM2, , TM2 at CS
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The pumping down on TM2 at CS was good overnight. However, the back up line pressure is still too high for LD to get to 0.0-E-9atm.cc/sec . It only could
get to 1.2xE-7 atm.cc/sec. It is not enough for a good leak check . I dont want to have any ambiguous situation on this" D" line leak check.
So,I am going to reconfigure the leak detector to the spare KF25 pot on the TM2 service cap. All pumps are stopped . The CS and TM2 will be vented soon. |
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Friday, December 05, 2014, 11:58, David Wang, Conditioning Station, Development, TM2, , helium pressure test on TM2 tube heater +(D) water lines. 6x
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At CS, The leak detector is hooked directly to the TM2 top service cap. The base LR 0.0xE-9 atm.cc/sec, base pressure 0.0xE-4torr. Applied 80 psi helium
to TM2 tube heater +(D) line . During 3 minutes applying time , I did not see any tiny change on LD readings. The line is perfectly vacuum sealed.
See attachment pictures. |
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Tuesday, January 06, 2015, 11:14, David Wang, ITE, Standard Operation, TM4, , 4 Shielding blocks have been moved out of ITE .
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| 4 shielding blocks have been moved out of ITE to block storage area. Fiona did the survey and with me during the move. |
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