 Thursday, October 24, 2013, 11:32, Travis Cave, South Hot-Cell, Standard Operation, TM4, no target, module move
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| TM#4 with no target has been moved from the conditioning station to the south hot cell. |
Thursday, October 24, 2013, 15:43, Anders Mjos, South Hot-Cell, Standard Operation, TM4, Ta#41, Target conductance 
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The conductance check on the electrical check was found to be outside of accepted values for the TBHT at 7.0 mOhm. A successful attempt to reduce the
conductance was made by re-tightening the bolts on the TGHT legs in the SHC. Grant operated the manipulator and torqued the bolts to about 1/8 of a turn
with the air ratchet. The conductance across the TGHT (A-B) could be improved from 7.0 mOhm to 6.2 mOhm by re-tightening the bolts. The value is still |
 Thursday, October 24, 2013, 15:54, Grant Minor, South Hot-Cell, Standard Operation, TM4, Ta#41, Target conductance
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Anders Mjos wrote:
The conductance check on the electrical check was found to be outside of accepted values for the TBHT |
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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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Friday, October 25, 2013, 14:09, Travis Cave, South Hot-Cell, Standard Operation, TM4, Ta#41, Target conductance
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Anders Mjos wrote:
The conductance check on the electrical check was found to be outside of accepted values for the TBHT |
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Friday, November 01, 2013, 09:08, Travis Cave, South Hot-Cell, Standard Operation, TM2, no target, module move
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| TM#2 has been moved from the north west silo to the south hot cell. The module has a field of about 3.1mSv/hr when it was lowered into the hot cell. |
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Monday, November 04, 2013, 10:46, chad fisher, South Hot-Cell, Repair, TM2, , TM2 Exploration
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TM2 is now in the hot cell with the containment box off for inspection and eventual blank off off the water blocks.
Upon initail inspection the status (fron a hot cell point of view) is:
-Water block jig is equipped/on |
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Tuesday, November 05, 2013, 10:37, chad fisher, South Hot-Cell, Repair, TM2, , Thermocouple wire removal
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The old thermocouple wire has been sucessfully removed from the module.
Thanks Bevan, Travis and David. |
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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, 10:59, Bevan Moss, South Hot-Cell, Standard Operation, TM2, , Electrical Test
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Don Jackson and Myself completed started an electrical test on TM2. All lines passed the with OL to ground. When testing in between the lines individually
there were several lines that read other than OL. It was decided to abandon the testing as there were too many "failures". The results are attached.
The testing will be repeated in the conditioning station with vacuum. It is not expected that this will change anything as during a quick visual inspection |
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Thursday, November 14, 2013, 08:08, chad fisher, South Hot-Cell, Repair, TM2, , TM2 Blank off and jig removal
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Firday, November 8 all water blocks (excluding I and K) were blanked off and vacuum leak checked. No responses were found. (First Picture)
I and K could not be blanked off without removal of the water block jig. Also, I dropped one of the blank offs onto the table, so one line could
not be blanked off until a new clean blank off was inserted into the cell. In addition, there was still reminace of a bolt in block Ias it aslo could not |
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Tuesday, November 19, 2013, 10:52, Travis Cave, South Hot-Cell, Standard Operation, TM3, NiO#2, module move
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| TM#3 with NiO#2 moved from ITE to the south hot cell. |
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Wednesday, November 20, 2013, 08:50, chad fisher, South Hot-Cell, Standard Operation, TM3, NiO#2, NiO#2 removed
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| NiO#2 has been removed from TM3 |
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Wednesday, November 20, 2013, 09:52, Travis Cave, South Hot-Cell, Standard Operation, TM3, no target, module move
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| TM#3 with no target has been moved from the south hot cell to the north east silo. |
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Thursday, November 21, 2013, 12:12, Anders Mjos, South Hot-Cell, Standard Operation, TM3, NiO#2, End of beam target inspection - ANODE does not hold 250V
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The target was inspected by Chad and Anders in the Hot Cell. Electrical megger tests were done during the assembly. It was found that Insulators No 3
(ITD0311) and No 2 (ITD0310) failed to hold voltage after the run.
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Monday, November 25, 2013, 11:48, Travis Cave, South Hot-Cell, Standard Operation, TM3, no target, module move
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| TM#3 with no target has been moved from the north east silo to the south hot cell. |
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Wednesday, November 27, 2013, 12:50, Bevan Moss, South Hot-Cell, Standard Operation, TM3, , Ground devices wiring check
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Travis and I completed an electrical check on the wiring harness for the devices on the ground plane. All lines passed 500V with the megger except
for PNG and the BTM steerer. Those devices had a short to ground. of ~1.4ohm. |
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Wednesday, November 27, 2013, 15:24, Bevan Moss, South Hot-Cell, Maintenance, TM3, , Wiring Harness Electrical Test
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Maico removed the containment box today allow Travis and I to further test the wiring harness. I disconnected the junction block and Travis and
I repeated the test from yesterday. The all lines except the PNG tested OL. The module was then lowered and the twisted pair connected to the pin that
corresponds to the steerer labeled BTM (it is likely this is not labeled correctly). This testing showed showed that the source of the short found yesterday |
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Friday, November 29, 2013, 11:54, chad fisher, South Hot-Cell, Repair, TM3, , Steerer short investegation
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Using in cell camera and transit the suspect line on the steerers was inspected as best as possible. An existing photo of the complete steerers before
installation was used for comparison. The wiring and beading inspected today showed no obvious problems, breaks or spots where there may be a short. In
comparison to the photo from construction, what we could see of the steerers looked identical to the original installation. |
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Friday, November 29, 2013, 11:57, Bevan Moss, South Hot-Cell, Repair, TM3, , Steerer short investegation
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chad fisher wrote:
Using in cell camera and transit the suspect line on the steerers was inspected as best as possible. |
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