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.

 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.

 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.

Bevan Moss wrote:

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.

 Attached screen shot. Vacuum was around 8.3 X 10^-6 on IG2 (which is in the diagnostics box)

 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.

 TM4 was move by myself and Grant. Move went smoothly, no hang ups.

Travis Cave wrote:

Results of the various electrical checks done on TM#3 while at the hot cell since the 27th of September. View PDF for the details.

 There was also a leak check. There was some water remaining in the HS line but once removed the leak cart pumped down to 0.0 x 10-4 Torr and the leak tester was at the bottom limit. There was no response when sprayed with helium

 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.

 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.

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 strip tool was left running over night, I have attached a screen shot of the the run. You will notice there are changes in vacuum that corresponds to changes in the TGHT and the TBHT voltage. Anders and myself used the archiver to plot the data with TS6 (TS3 would be better and I will have it added to the achiver), the changes in voltage and vacuum match perfectly with the compressor coming on and off. This should be investigated and possibly the temperature range of the cycling of the compressor reduced.

 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 spraying helium the leak cart responded and peaked at 1.9 x 10^-6 atm*cc/sec. Attached is a picture of the module indicating the line.

 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.

 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 he would have followed.

 TM4 without a source tray was moved from the SHC to the TCS.  All went well.

 The roughing pump has been started.

 The Turbo pumps are now running on TCS

 The electrical connection have been made and cooling package was started at ~10:50am today

 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.

 The base card in the canbus BIAS module was determined to be faulty. Dave Morris removed a card VECC to repair the conditioning station. 

 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. At this point I would suggest the EL has a HV limit near 25kV.

The BIAS and EL were then brought up to 35kV and 17.5kV respectively. This voltage was held for 35 minutes with the BAIS only sparking twice. The module can most likely hold a higher voltage but for the next 2 runs does not require more than 35kV. Further testing was not completed due to time constraints. It is recommended during the shut down that TM4 is tested to its limits. The data from the testing has been attached.