 Wednesday, November 13, 2013, 10:01, David Wang, Conditioning Station, Repair, TM2, , TM2 leak check at conditioning station 
|
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 |
|
Tuesday, November 19, 2013, 14:24, David Wang, ITE, Repair, , , ITE TP3
|
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 |
|
Tuesday, December 03, 2013, 09:58, David Wang, ITW, Standard Operation, TM4, , I moved 5 shielding blocks from ITW to block storage area.
|
| I moved 5 shielding blocks from ITW to block storage area. |
|
Wednesday, December 04, 2013, 11:05, David Wang, ITW, Standard Operation, TM4, Ta41#, I disconnected TM4 in ITW
|
| I disconnected TM4 in ITW .The job took about 20minutes and I got 0.11 msv dose. |
|
Wednesday, December 04, 2013, 11:15, David Wang, ITE, Repair, TM4, , New bolts are installed on ITE TP3.
|
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. |
|
Thursday, December 05, 2013, 14:55, David Wang, South Hot-Cell, Standard Operation, TM4, , Leak check on TM4 target heat shield
|
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. |
|
Thursday, December 05, 2013, 14:57, David Wang, ITE, Standard Operation, TM4, , Connected TM4 in ITW
|
| I connected TM4 in ITE. All turbo pumps have been started and wok fine including new TP3. Everything is good so far. |
|
Monday, December 09, 2013, 14:47, David Wang, ITE, Standard Operation, TM4, , I moved 5 shielding blocks from block storage area to ITE.
|
| I moved 5 shielding blocks to ITE. The ITE is configured to take proton beam. |
|
Monday, January 20, 2014, 13:35, David Wang, ITE, Standard Operation, TM4, , 5 shielding blocks had been moved out of ITE
|
| 5 SHIELDING BLOCKS HAD BEEN MOVED OUT OF ITE.AIR SAMPLE AND SWIPED FIRST BLOCK AND ITE PIT.NOTHING HAD BEEN FOUND ON ALPHA MONITOR AND OTHER TWO MONITORS. |
|
Monday, January 20, 2014, 13:38, David Wang, ITE, Standard Operation, TM4, , DISCONNECTED TM4 IN ITE.
|
| I DISCONNECTED TM4 IN ITE. ALL WATER LINES HAD BEEN PURGED OUT WITH PRESSURE AIR. |
|
Wednesday, January 22, 2014, 10:51, David Wang, ITE, Repair, , , Removed 4 shielding blocks located on top of preseperator in TH
|
Travis and I removed 4 shielding blocks located on top of pre-seperator in TH. This is a job for ITE harp 9 re-installation after it is repaired
. The blocks move are successful. |
|
Tuesday, February 04, 2014, 08:04, David Wang, South Hot-Cell, Repair, TM2, , Leak check TM2 tube heater (+) water line.
|
Chad and I leak checked TM2 tube heater(+) water line yesterday afternoon. The water line was difficult to pump down on base leak rate, but LD
base pressure was fine . The base pressure on leak detector was pumped to 0.0XE-4 torr quickly. The base leak rate only could be pumped to
4.5 xE-8 atm.cc/sec after 1 hour waiting time. All vacuum connections to leak detector in the target hall were leak checked and they were good. Chad |
|
Tuesday, February 04, 2014, 09:42, David Wang, South Hot-Cell, Repair, TM2, , pressure test on TM2 tube heater +(D) water line. 10x
|
Chad and I did a pressure test on TM2 tube Heater+(D) water line.I pressurized the D line with shop air from quick connectors(both ends) on service cap.chad
applied bubble soap onto the D water block in SHC. The test started from 5psi,and increased 5psi each time to 40 psi. From 5 to 35 psi, no bubble has been
found on water block. At 40 psi , bubble appeared from blind blank off seal , but not from soldering joints. Since the o-ring seal for the blank off is |
|
Wednesday, February 05, 2014, 14:05, David Wang, South Hot-Cell, Repair, TM2, , Leak check TM2 tube heater (+) water line from inside service cap in TH.
|
Bevan and I did a leak check on TM2 tube heater+ from inside service cap in TH. The leak detector base leak rate 0.0xE-9 atm.cc/sec, base pressure
0.0xE-4totrr. One of side panel on service cap was opened. Bevan sprayed the helium to the "D" line inside the blue insulator.The helium flow
was checked , and he sprayed twice. No response has been found on leak detector. See attachment pictures |
|
Thursday, February 13, 2014, 09:24, David Wang, South Hot-Cell, Repair, TM2, , Leak check TM2 tube heater (+) water line with rubber insert blocked WB in SHC
|
Chad and I did the Leak checked TM2 tube heater (+) water line with rubber insert plugged water block on " D" in SHC. The
Leak detector was very easy to pump down to the bottom leak rate and pressure. Chad checked the helium flow in SHC, and sprayed 10 second helium on
the block. There is no response had been found during the test. The test was repeated again and no leak has been found. See attachment pictures. |
|
Thursday, February 13, 2014, 13:30, David Wang, South Hot-Cell, Repair, TM2, , pressure test on TM2 tube heater +(D) water line.
|
Chad and I did the pressure test on TM2tube heater+(D) water line at SHC with shop air.We tested from 30psi to 80psi on both side of D line. The
bubbles were found at 50-55psi on blank off seal in SHC. |
 Thursday, February 13, 2014, 14:15, David Wang, South Hot-Cell, Repair, TM2, , pressure test on TM2 tube heater +(D) water line.
|
David Wang wrote:
Chad and I did the pressure test on TM2tube heater+(D) water line at SHC with shop air.We tested from 30psi to |
|
Thursday, February 13, 2014, 14:23, David Wang, South Hot-Cell, Repair, TM2, , Leak check on TM2 tube heater (+) water line with blank off(elastic seal) installed on WB.
|
Chad and I did the leak check on TM2 tube heater (+) water line with blank off( + elastic o ring seal) installed on "D" water block
in SHC. We got the same no leak result as we got with rubber insert this morning. |
|
Monday, February 17, 2014, 09:32, David Wang, Conditioning Station, Repair, TM2, , helium pressure test on TM2 tube heater +(D) water line. 6x
|
I did the helium pressure test on Tube heater+ line this morning. The vacuum on CS and TM2 are very good. The base lake rate on leak detector was 1.7xE-7
atm.cc/sec. Base pressure was 0.0xE-4torr. I applied helium to the "D"line .The test started from 30psi up to 80psi on both side "D"
line.The base leak rate slightly changed to 1.9xE-7 atm.cc/sec during the test,but not base pressure. At this base leak rate level, No obvious leak had |
|
Tuesday, February 18, 2014, 11:26, David Wang, Conditioning Station, Repair, TM2, , I stopped turbo pumps and disconnected vacuum system on TM 2 and CS
|
| I stopped turbo pumps and disconnected vacuum system on TM2 and CS. The TM2 will be moved to SHC for C seal installation on "D" water block. |
|