 Friday, February 22, 2013, 13:02, Bevan Moss, Conditioning Station, Development, TM4, CS Test Target #1, HV test with Water 
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Hello Ray and Yi
Completed a HV test with the water flowing today.
8.96 Mohm |
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Friday, February 22, 2013, 13:13, Bevan Moss, Conditioning Station, Development, TM4, CS Test Target #1, Broken Turbo Pump
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Today while putting the cover on the cord that goes to the controller was bumped. This bent the connector down and caused a vacuum leak. I tried
to tighten the bolts in the hope the leak would go away but it did not and I sheared one of the bolts off. David is inquiring with Edi if the pump can
be repaired or if it needs to be replaced. The good news is that the interlocks work exactly as planned. Upon detecting a leak they shut the turbos down |
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Tuesday, February 26, 2013, 13:24, Travis Cave, Conditioning Station, Standard Operation, TM4, CS Test Target #1, module move
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| TM#4 with CS Test Target #1 (dummy target) moved from the conditioning station to the east target station. Move went well. |
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Tuesday, February 26, 2013, 13:53, David Wang, Conditioning Station, Repair, TM4, , Replaced TM4 TP1
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| Bevan and I replaced TM4 TP1 today at conditioning station .The pump will be started this week when I do ITE and TM4 leak check . |
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Friday, March 01, 2013, 11:35, David Wang, ITE, Maintenance, TM4, , Leak check on ITE and TM4.
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The leak check on TM4 and ITE is done. All primary vacuum vessel , secondary vacuum
vessel on TM4 and ITE are leak tight. There is no any response had been found on leak detector(leak detector base LR 0.0xE-9 arm.cc/sec). All water
lines had been pressurized to 70 psi helium for 3 minutes. They are all perfect leak tight( I cant find even a tiny response on leak detector) except |
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Friday, March 08, 2013, 15:50, Bevan Moss, ITE, Standard Operation, TM4, CS Test Target #1, Module Move from ITE to SHC
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Today David and I moved the module from ITE to the SHC. Move went very smoothly, David operated the cameras and has had basic training in how to
manually lock out the controls. |
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Tuesday, March 12, 2013, 09:18, chad fisher, South Hot-Cell, Repair, TM4, , Ground Electrode Leak
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On Monday, March 11 the containment box was removed from TM4 and a vacuum leak check preformed in an attempt to locate the leak in the ground electrode
circuit.
Following Pierre's work plain helium was sprayed was the highest joint accessible towards the lowest. |
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Wednesday, March 13, 2013, 07:22, chad fisher, South Hot-Cell, Repair, TM4, , Ground Electrode Leak / Inspection Results
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Further attempts to localize the leak were unsucessful. The circuit was pressurized with 60 psi air and snoop solution was applied to both the braze
joints and the mating surface between the two halfs of the water blocks. Unfortunately, no visible bubbles could be dectected.
This was reported to Grant and Pierre and it was decided to continue with removing one of the vcr gaskets from the optics cooling lines (on the |
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Wednesday, March 13, 2013, 11:23, chad fisher, South Hot-Cell, Repair, TM4, , Ground Electrode Leak
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The containment box has been re-installed and the window waterlines reconnected and leak checked.
The window lines did pass the leak check, however the leak dectoctor did not pump down past 5.8 x 10-9.
The front cover has also been reinstalled. |
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Wednesday, March 13, 2013, 14:31, Bevan Moss, Conditioning Station, Standard Operation, TM4, CS Test Target #1, Module Move
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TM4 with CS Test Target #1 was moved from the SHC to the Conditioning Station. All went well. The welding cables came a little close to the cage,
David will bend them in more in the future. |
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Wednesday, March 13, 2013, 15:26, Bevan Moss, Conditioning Station, Development, TM4, CS Test Target #1, Roughing Started
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| Roughing pumps were turned on at 15:23 13/03/2013. |
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Thursday, March 14, 2013, 07:09, David Wang, South Hot-Cell, Standard Operation, TM4, , TM4 electrical test at SHC after windown and containment box back.
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| TM4 electrical test at SHC after windown and containment box back is done. Everything is fine. |
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Thursday, March 14, 2013, 07:18, David Wang, South Hot-Cell, Standard Operation, TM4, , TM4 window cooling line leak check
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It took a long time(more than 1 hour) to pump down the TM4 window cooling line during leak check time. The base leak rate could only be
pumped to 5.8xE-9 atm.cc/sec.Base pressure is 0.0xE-4 torr which is bottom reading. Chad and i did the leak check at this base leak rate .No leak had been
found. The window cooling line is leak tight at this stage. A pressure helium test will be fulfilled in conditioning station on this cooling line later. |
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Thursday, March 14, 2013, 10:04, Bevan Moss, Conditioning Station, Standard Operation, TM4, CS Test Target 1, Cooling Package Started
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| The cooling package was started at 10:00 today. See attached picture. There is another snap shot at 10:03. |
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Thursday, March 14, 2013, 11:25, Bevan Moss, Conditioning Station, Standard Operation, TM4, CS Test Target #1, Turbos Started
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Turbos started at 11:14. TP1S achieved full speed in less than 2 minutes. TP1 and 2 tripped at 9 minutes. Restarted and reached at speed after
another 1 minute 20 seconds. |
 Thursday, March 14, 2013, 11:56, Bevan Moss, Conditioning Station, Standard Operation, TM4, CS Test Target 1, Cooling Package Started
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Bevan Moss wrote:
The cooling package was started at 10:00 today. See attached picture. There is another snap shot |
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Monday, March 18, 2013, 12:03, Bevan Moss, Conditioning Station, Repair, TM4, CS Test Target #1, Turbo Pump 1 Failure and Venting
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Over the weekend Turbo pump one failed. It was attempted to restart the turbo in soft start but that also failed. Although the Vacuum was good
enough to operate both Turbos are required to pass commissioning. As such the pumps were turned off at ~10:00 today. Venting started at 12:00. |
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Monday, March 18, 2013, 12:39, Bevan Moss, Conditioning Station, Repair, TM4, CS Test Target #1, TGHT PS Failure
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The Model of the Power Supply (PS) is TSQLG 480-20/1500 and serial number is 2755.02.01.01.09.
We went to test the PS and supplied the required 480V and turned the local switch to on. At this point nothing happened, the
controls screen didn’t light up nothing. We tried to run the PS in remote mode as that is what it had previously been set at and again there was |
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Monday, March 18, 2013, 15:28, Bevan Moss, Conditioning Station, Standard Operation, TM4, CS Test Target #1, Vented With Argon
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The conditioning station has been vented with argon. Time taken is not known but it is less than 3 hours. See attached picture for convectron gauge
readings. CG1A is in air. |
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Tuesday, March 19, 2013, 09:55, Bevan Moss, Conditioning Station, Standard Operation, TM4, CS Test Target #1, Turbo pump 1 replaced roughing started
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| David replaced the broken turbo pump this morning and I have started roughing at 9:54. |
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