 Wednesday, May 15, 2013, 16:51, Bevan Moss, Conditioning Station, Standard Operation, TM3, No Source Tray, Repeat of HV Test 
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The HV test completed on Monday was repeated today over a much longer time period. By taking longer there was slightly less sparking but once again
a maximum voltage of ~44kV was achieved. The resistivity of the water was much higher during this run so the leakage current was less but still in
the >100 uA range. The spark that occurred during the ramp up to the maximum voltage caused the "water resistivity" limit to trip. This was |
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Wednesday, May 15, 2013, 17:32, Bevan Moss, Conditioning Station, Standard Operation, TM3, , TM3 in place but not connected
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To confirm that the sparking was coming from the module rather than the conditioning station TM3 was grounded and the conditioning station biased.
Attached are the results. Highlights include that there was no sparking and the station was able to achieve 60kV (limited by controls from going higher).
The current from the raw file has been corrected by the required factor of 5. |
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Wednesday, May 15, 2013, 18:12, Bevan Moss, Conditioning Station, Standard Operation, TM3, No source tray, HV test repeat
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After discussion with Friedhelm it was decided to continue trying to condition the module today before moving it tomorrow. The voltage was quickly
raised until 40 kV where it was left for ~30 minutes. Sparking was minimal. It was then slowly raised to 44.3 kV it held this voltage for ~8 minutes when
the current started to climb (remained below 200uA as set as a limit in previous tesing). There was also sparking at this point. This continued for ~2.5 |
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Friday, May 17, 2013, 12:02, Travis Cave, Conditioning Station, Standard Operation, TM3, , module move
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| TM#3 with no target or source trays has been moved from the conditioning station to the NE silo. |
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Tuesday, May 21, 2013, 11:52, Bevan Moss, Conditioning Station, Standard Operation, TM3, No Source Tray, May 16th Long HV conditioning
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On May 16th 2013 the module was HV conditioned all day. As a result the maximum stable voltage has been increased to about 47kV (~4kV more than last
test). A maximum voltage of 49kV was achieved but the module was very unstable. Attached is the data from the testing. Note that occasionally the sparking
caused the PS to reset, it was turned back on and the voltage increased back to what it was (or lower) quickly. |
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Thursday, June 13, 2013, 09:18, chad fisher, South Hot-Cell, Repair, TM3, , Source Tray/Extraction Column Removal
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TM3 Rev 2 source tray/extraction column insertion into its storage was completed yesterday and it was then removed from the hot cell and put into
the anteroom until June 25th when it will be moved into the vault tunnel.
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Tuesday, June 18, 2013, 14:00, chad fisher, South Hot-Cell, Development, TM3, , Mock-up testing / water block connections
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The testing of the mock-up and tooling has commenced.
Source tray mock-up has been driven into the mock-up and the first two water block connections have been made; the first with the torque limiting
T-handle tool and the second with the torque limiting air rachet attachment. Both seem to work well, although achieving the required torque with |
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Wednesday, June 19, 2013, 08:15, chad fisher, South Hot-Cell, Development, TM3, , Mock up water block connections
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All water block connections on the mock-up have bben achieved. It is now ready for leak checking.
The front half of the water block jig proved extremely difficult to remove. |
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Friday, June 21, 2013, 09:26, chad fisher, South Hot-Cell, Development, TM3, , Mock-up Leak Check Results
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The Mock-up has been leak tested after the remote connection of the water blocks and is leak tight!
Thanks everybody who contributed to its success. |
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Tuesday, July 02, 2013, 09:37, chad fisher, South Hot-Cell, Development, TM3, , TM3 Rev.2 Source Tray Disposal
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| Tm3 Rev.2 source tary has been transfered to the vault tunnel storage. |
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Wednesday, July 03, 2013, 10:43, Travis Cave, South Hot-Cell, Standard Operation, TM3, no target, module move
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| TM#3 with no target and no source tray was moved from the north east silo to the south hot cell the move went well. |
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Friday, July 05, 2013, 09:22, chad fisher, South Hot-Cell, Repair, TM3, , Service Tray Water Block Inspection
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I have inspected the service tray water block and suggest that they SHOULD be cleaned/polished before we install the new source tray.
The water blocks have slight water scalling to the inside of the ID of where the c seals locate.
I have taken two close up pictures of each water block for reference and to document their current state. They can be found at http://documents.triumf.ca/docushare/dsweb/View/Collection-10841 |
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Friday, July 05, 2013, 10:02, Bevan Moss, Conditioning Station, Standard Operation, TM3, No source tray, TM3 module move to TCS
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| TM3 has been moved from the south hot cell to the conditioning station. David and I completed the move. All went well. |
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Wednesday, July 17, 2013, 08:29, David Wang, Conditioning Station, Development, TM3, , TM3 leak check in CS without source tray.
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Leak checked TM3 without source tray in CS this morning. The CS and TM3 vacuum: IG1(top of the TM3 service cap)4.9x E-7Torr, IG2(diagnostic box
primary)1.9XE-6 Torr. IG1S (secondary vessel)7.9X E-7Torr. The leak detector was at 0.0XE-4 torr and 0.0XE-9 atm.cc/sec level during the leak checked.
All water lines quick connector fittings, NPT thread fittings, water cap seals, blue insulator seals, bellow, gauges seals, turbo-pumps, all blanket panels,and |
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Wednesday, July 17, 2013, 10:10, David Wang, Conditioning Station, Development, TM3, , CS cooling and vacuum system have been turned off
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| CS water cooling and vacuum system have been turned off at 10:00 AM this morning.The TM3 will be disconnected and moved to silo tomorrow morning. |
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Thursday, July 18, 2013, 10:08, Travis Cave, Conditioning Station, Standard Operation, TM3, no target, module move
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| TM#3 with no target and no source tray has been moved from the conditioning station to the north east silo, move went well. |
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Monday, July 22, 2013, 15:52, Bevan Moss, Conditioning Station, Standard Operation, TM3, No Source Tray, HV testing update
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I have fallen behind on the HV testing that has been completed on TM3. Data can be found on docushare in the TM3 Rev 3 folder files are
too large to attach. From the last elog entry the following tests have been completed
July 8 2013 - Long HV conditioning 50kV achieved before sparking caused PS to trip. Was unable to recover to the same voltage |
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Wednesday, August 14, 2013, 11:50, Travis Cave, South Hot-Cell, Maintenance, TM3, , module move
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| TM#3 and its new source tray have been both moved into the south hot cell. |
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Thursday, August 15, 2013, 09:32, chad fisher, South Hot-Cell, Repair, TM3, , TM3 source tray installation status
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The installation of the module side water block jig has been successful.
During initial attempts yesterday afternoon,
installation of the jig proved, as expected to be extremely difficult. This was primarily due a poorly position water block from a previous repair were |
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Wednesday, August 21, 2013, 20:36, Grant Minor, South Hot-Cell, Repair, TM3, , TM3 module-side water block sealing surface inspection (post polishing)
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The water block sealing surfaces on the module-side of TM3 were polished this week by Chad Fisher, using his air-ratchet controlled rotating head tools
(single and double-surface polishing tools).
Photos of the polishing tools in-use are attached (from August 16 - 21, 2013) |
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