 Thursday, September 26, 2013, 14:47, Bevan Moss, Conditioning Station, Maintenance, TM3, NiO#2, Water pumps turned on
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The water pumps for the conditioning station were turned on at ~11:45. It took longer to start the conditioning station as the air from the leak
test had to be bled off and the make up water tank refilled. The valves on the water supply line were closed slightly to make up for the fact the water
cooled power supply has been removed. DIF2 was installed by Maico so we can measure the flow in the primary side. |
Thursday, September 26, 2013, 14:55, Bevan Moss, Conditioning Station, Standard Operation, TM3, NiO#2, HV conditioning 
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The first attempt at HV conditioning of TM3 with the new source tray and NiO#2 target installed. Conditioning so far has been very slow, with the
current increasing quickly to a maximum of 400uA. Voltage in these cases was lowered until the current was below 200uA. Attached is the raw data. It appears
the source tray and target are conditioning just there is either something burning off or there is localized poor vacuum. |
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Thursday, September 26, 2013, 15:00, Bevan Moss, Conditioning Station, Standard Operation, TM3, NiO#2, RGA not connecting
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Following the helium pressure test Don attempted to connect to the RGA via the network. He was unable to do so. This scan was desired so a pre
and post water scan could be compared to indicate if there was any leaking. It has been decided to carry on as the HV and HP tests are of greater importance.
Don will continue to investigate the RGA. Travis inspected from the conditioning station roof and determined that the RGA is getting power. |
 Thursday, September 26, 2013, 15:25, Bevan Moss, Conditioning Station, Standard Operation, TM3, NiO#2, HV conditioning
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Bevan Moss wrote:
The first attempt at HV conditioning of TM3 with the new source tray and NiO#2 target installed. |
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Friday, September 27, 2013, 12:53, Bevan Moss, Conditioning Station, Standard Operation, TM3, NiO#2, HP TGHT and TBHT conditioning
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Yesterday TM3 had the TGHT current raised to 160 amps and the TBHT raised to 200 amps. At this power the TGHT showed typical results in that vacuum
was affected and the increased voltage as the target increased in temperature. The tube heater on the other hand did not change voltage or show a change
in vacuum. As a result it is believe there is a short somewhere in the module. I have attached a screen shot of the strip tool and the raw data. |
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Monday, September 30, 2013, 15:59, Bevan Moss, South Hot-Cell, Standard Operation, TM4, SiC#29, Module move from SW Silo to SHC
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| TM4 was move by myself and Grant. Move went smoothly, no hang ups. |
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Monday, September 30, 2013, 16:00, Bevan Moss, South Hot-Cell, Standard Operation, TM3, NiO#2, Electrical check
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Travis Cave wrote:
Results of the various electrical checks done on TM#3 while at the hot cell since the 27th of September. |
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Monday, September 30, 2013, 16:02, Bevan Moss, Conditioning Station, Standard Operation, TM3, NiO#2, Vacuum
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| The roughing pump for TCS was started at ~3:00 and the turbo's turned on at ~4:00. This is the minimum time for the module to pump down. |
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Monday, September 30, 2013, 16:04, Bevan Moss, Conditioning Station, Repair, TM3, NiO#2, Ion gauge filament replacement
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The filament on IG1 for TM3 was replaced by myself and Edi. The old filament did not appear to be damaged but the controller claimed it was. The
current gauge on TM3 is a single filament, ideally it would be upgraded to a double. |
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Wednesday, October 02, 2013, 09:40, Bevan Moss, Conditioning Station, Standard Operation, TM3, NiO#2, HP conditioning
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Yesterday the TBHT was ramped to 250 amp and the TGHT was ramped to 440 amps. Attached is the data from that run the strip tool that had this screen
shot crashed but it can be recreated with the data. The TBHT ps was not reading back accurate results as such there are large steps in current or voltage
or some instability for no apparent reason. In addition to this the ramping program is still not working so the ramping was a very manual process. The |
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Wednesday, October 02, 2013, 13:44, Bevan Moss, South Hot-Cell, Standard Operation, TM4, , Right Coil is leaking
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Today Maico and Travis completed and electrical test to determine the right and left coil on TM4. The left coil is the negative side. From there
Maico pumped on both lines for a leak test. The leak cart pumped down to its lower limits on the left line and there was no response when sprayed with
helium. The right line would not pump below 2.5 x 10^-2 Torr and had a base leak rate of 3.3 x 10^-7 atm*cc/sec (this indicates a massive leak). Without |
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Tuesday, October 15, 2013, 15:34, Bevan Moss, ITE, Standard Operation, TM3, , Blocks moved from ITW to ITE
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Blocks 1-4 have been moved from ITW to ITE. Block 5 was moved to a storage area as it will be in the way of the harp repair. Danka took air samples
and found 200 counts of alpha on the air samples but nothing on the swipes. It is recommended that resporators be worn while blocks are being lifted and
lowered. She will check the monitor tomorrow to confirm it is behaving as it should. |
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Friday, October 18, 2013, 10:17, Bevan Moss, ITW, Repair, , , Paddle Wheel
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Yesterday I visually inspected the paddle wheel and noticed that it was spinning freely and constant. As the signal was intermittent replaced the
coil at the back of the wheel only. This does not require access to the high active water. With the coil replaced the signal looked strong. I asked operations
to keep and eye on it and advise if the problem has been resolved. I also discussed with David this morning and he informed me that this is the same procedure |
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Friday, October 18, 2013, 14:33, Bevan Moss, South Hot-Cell, Standard Operation, TM4, , Module move
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| TM4 without a source tray was moved from the SHC to the TCS. All went well. |
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Friday, October 18, 2013, 14:37, Bevan Moss, Conditioning Station, Standard Operation, TM4, , Roughing Started
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| The roughing pump has been started. |
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Friday, October 18, 2013, 15:55, Bevan Moss, Conditioning Station, Standard Operation, TM4, , Turbo Pumps are on
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| The Turbo pumps are now running on TCS |
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Monday, October 21, 2013, 10:52, Bevan Moss, Conditioning Station, Standard Operation, TM4, , Cooling On and Electrical Connections Made
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| The electrical connection have been made and cooling package was started at ~10:50am today |
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Monday, October 21, 2013, 12:29, Bevan Moss, Conditioning Station, Repair, TM4, , BIAS Canbus
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There is something wrong with the BIAS canbus controller. It says that it is not alive and has timed out. I have tried unplugging it and plugging
it back in but that has not resolved the problem as it normally does. I have contacted Dave Morris and am waiting to hear from him. I cannot HV test without
this controller. |
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Tuesday, October 22, 2013, 16:52, Bevan Moss, Conditioning Station, Repair, , , Canbus base card for BIAS
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| The base card in the canbus BIAS module was determined to be faulty. Dave Morris removed a card VECC to repair the conditioning station. |
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Tuesday, October 22, 2013, 17:04, Bevan Moss, Conditioning Station, Standard Operation, TM4, , HV testing
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This afternoon TM4 with the coil removed was tested with HV. The EINZEL LENS was first tested independently while the bias canbus was being repaired.
The current on the EL looked stable at 25kV for 5 minutes. At 27.5kV the current becomes unstable and occasionally sparks. This voltage was held for 30
minutes but the current did not appear to be becoming more stable. Further extended testing would be required to determine if this can be conditioned out. |
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