 Tuesday, October 22, 2013, 17:07, Bevan Moss, Conditioning Station, Standard Operation, , , services shut down
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| The turbo pump, roughing pump, have been turned off and the valves for venting opened. The cooling package has also been turned off. |
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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Tuesday, November 12, 2013, 12:43, Bevan Moss, Conditioning Station, Standard Operation, TM2, , TM2 moved from SHC to TCS
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TM2 was moved by myself and David from the SHC to the TCS. Move went well. Curiously the fields on the module were measured higher than the previous
measurement (now ~5.8mSv/hour) . |
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Tuesday, November 12, 2013, 14:31, Bevan Moss, Conditioning Station, Standard Operation, TM2, , Turbo pumps started
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| The turbo pumps have been started on TM2 and the conditioning station. |
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Tuesday, November 12, 2013, 14:33, Bevan Moss, Conditioning Station, Repair, , , Cooling manifold returned
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| The cooling manifold for the conditioning station high power water cooled lines has been returned. The cooling package can once again be operated |
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Friday, November 15, 2013, 16:48, Bevan Moss, Conditioning Station, Standard Operation, TM2, , HV Testing
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High voltage testing was started on TM2 with no source tray today. The maximum stable for 1 minute voltage reached was 47.5kV but the module is
still conditioning. With every step up in voltage the current goes up a large amount and slowly bleeds down. Large sparks disrupts the connection of the
CANBUS to the PS which is irritating but the module can be brought up to the equivalent voltage in less than 30 seconds. Attached is a screen shot of most |
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Monday, November 18, 2013, 11:54, Bevan Moss, Conditioning Station, Repair, TM2, , Fault on TCS Chill
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This morning when I went to start HV conditioning CP2 and CP3 both had faults and the temperature of the water was ~27C. I reset the compressors
by flipping the system reset switch. This cleared the fault and allowed the compressors to come one. To the best of my knowledge these faults happen as
a result of compressor fluid pressure too low or high and temperature too low or high and lack of flow. The system cannot determine which one it was that |
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Monday, November 18, 2013, 16:42, Bevan Moss, Conditioning Station, Standard Operation, TM2, , HV Testing
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The Glory of TM2 continues 100V at a time. Today I brought the module to 46kV and left it there for 1 hour. During this time there was only 1 spark.
I then continues at up to 53kV. At this voltage the canbus continues to be temperamental when the module sparks. The module is still conditioning and I
will continue more tomorrow. Attached is the dumped data and a screen shot of the conditioning from 46kV to 53kV. |
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Monday, November 18, 2013, 16:44, Bevan Moss, Conditioning Station, Standard Operation, , , Testing of cooling package
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| I have tested all of the compressors for TCS. All are operational and cycled as they should. |
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Tuesday, November 19, 2013, 16:55, Bevan Moss, Conditioning Station, Standard Operation, TM2, , HV conditioning
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HV conditioning of TM2 continued today. At ~53.5kV the module started to spark externally to the HV cover. This is the first time the cover has
been tested to this high of a voltage due to the limitations of the modules. As such for the conditioning station to achieve 60kV while keeping the target
hall open of personnel the cover and cage will need to be modified. To continue with HV testing of TM2 the cover was removed and the target hall locked |
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Wednesday, November 20, 2013, 13:52, Bevan Moss, Conditioning Station, Standard Operation, TM2, , HV testing of TM2
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HV testing without the cover continued today. With the EINZEL lens at 30kV the target module was able to achieve 58.7kV. At this voltage any spark
was reeking havoc on the electronics of the TCS. Vacuum gauges signals were occasionally lost, the thermocouple reading would occasionally be lost, turbo
pump would turn off. All of these events caused the interlocks to trip resulting in the power supplies to be turned off. As a result I bypassed majority |
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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 |
 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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Tuesday, December 03, 2013, 14:14, Bevan Moss, Conditioning Station, Standard Operation, TM2, , HV conditioning
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It was attempted to HV condition TM2 to 55kV and leave it operating there for an hour to demonstrate stability. Unfortunately at 52.65kV a spark
destroyed the canbus controller. This controller had shown issues in the past but seemed to magically fixed itself. I will contact Hubert for another card.
Attached is is a screen shot of the stip tools. |
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Friday, December 06, 2013, 15:09, Bevan Moss, Conditioning Station, Standard Operation, TM2, , TM2 no source tray 55kV 1 hour
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Today 55kV was applied to TM2 and held for over 1 hour with the EINZEL at 27.5kV. There were 2 sparks and the current was unstable at this voltage but
this test should be considered a success. Once again while bringing the voltage up the canbus continued to be a problem. After successfully passing the
test I continued to raise the BIAS and EINZEL. A spark at 57kV tripped a controller for the vacuum and the canbus. As stated before I believe the module |
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Thursday, December 12, 2013, 11:14, Bevan Moss, Conditioning Station, Standard Operation, TM2, , HV Chase Electrical Test
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While under vacuum Travis and I completed diagnostics of the HV chase. Majority of the lines showed OL at 1kV but there were the following "failures"
A to P @ 250V 716kOhm
A to Q @ 1kV 25.18MOhm |
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Monday, March 31, 2014, 13:22, Bevan Moss, Conditioning Station, Standard Operation, TM4, Ta #42, HV conditioning
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TM4 with Ta#42 was HV conditioned to 35kV with the optics tray at 17.5kV. There was some vacuum response while ramping but well within normal.
Attached is a screen shot and the associated data. |
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Thursday, April 10, 2014, 14:03, Bevan Moss, Conditioning Station, Standard Operation, TM3, TiC#4, HV conditioning
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The TiC#4 target that is on TM3 was conditioned to 25kV today with the EINZEL lens at 12.5kV. There was one spark shortly after reaching 25kV that
reset the bias PS and another one after the module sat at 25kV for ~30 minutes. Attached is the strip tool data and screen shot. Prior to starting
the conditioning the power on the chiller needed to by cycled as the VFD on the fans had tripped due to a recurring inrush problem. |
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Friday, March 22, 2013, 18:49, Aurelia Laxdal, Conditioning Station, Development, TM4, FEBIAD HP with Dummy Target, Commissioning TCS - Part 1
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Today, the commissioning of the TCS went well. The water/vacuum interlocks were checked OK. Then, the TCS was HV conditioned up to 33kV.
Tomorrow, the heaters will be ramped up. |
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