ITE primary and secondary vacuum vessel leak check for 2025 shut down have been done. No leak.  The TM3 waterlines helium pressure test will be done at TCS when module is there.

TM3 water lines helium pressure test  are done. 70 psi helium 3 minutes to each line( except HS which has no target on it ) . leak detector base leak rate :0.0Xe-9 atm.cc/sec. No leak on all tested water lines.Helium were purged out after test. and 60 psi nitrogen were filled in lines for storage. 

 TM3 with spent target UCx#47 was disconnected in ITE and will be moved to SHC.

TM3 UCx#47 after operation electrical check  is done at SHC. The result is normal. See attachment.

A complete TM3 electrical check at TCS under good vacuum has been done. Pin 14 to 60KV only has 8K ohm on ohmmeter check , and it's about 2Kohm @250V Megga. It's low in resistivity. The pin 14 is for thermocouples only so no big concern.  The rest things are good. See attachments.

Tm3 has been moved  from TCS to silo. The move is successful.

TM2 has been moved to TCS and under good vacuum. TP1/2 work fine.  Electrical check: A to PQ still dead short. B to C @250V 3.8M which is ok still . We knew these two things before. Other things are good. Vacuum: air to vacuum seals on TM2 service cap are good. Helium pressure test on all water lines are good. HS line no target so can't be tested. But We did helium pressure test on each target change so it's fine.

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.

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

-There is a thermocouple line that will need to be removed

-TM2 requires a new front containment box cover - already manufactured and waiting for installation

The old thermocouple wire has been sucessfully removed from the module.

Thanks Bevan, Travis and David.

Bevan and I installed 2 turbo pumps on TM2. The o- ring flanges on TM2 had been cleaned before the installation.

 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 it appears the lines are touching. Of note the water block jig was removed this morning by Chad.

 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) .

 The turbo pumps have been started on TM2 and the conditioning station.

I leak checked TM2 at conditioning station this morning. All air to vacuum seals on the top of the module are good. All water lines are pressured with 60 psi helium for minutes each. One of the tube heater + water line( 2lines for tube heater + for supply and return) has a huge response on 60 psi helium pressurizing. The leak rate went from 6.0xE-9atm.cc/sec to maximum leak rate in 5 seconds and I saw a pressure increasing either. when I pressurize the other side tube heater + line ,the leak detector also had a response,but it is slower than first side .Since the top of the water adaptor isn't sealed , so I think the leak should be in one line only. All other water lines are leak tight since I didnt see any obvious response on leak detector at 5 to 6x E-9 atm.cc/sec which is very low on leak rate. 

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 be removed until the water block jig was removed.

Tuesday, November 12 a new blank off was put into the cell. The water block jig was removed, which was very easy, confirming documentation from installation (in 2008?) that it fit very well / the blocks were bent and soldered to the jig very carefully.

Screw was removed from I and both I and K were blanked off and vacuum leak checked. No response. (Second Piccture)

Containment box was re-installed and module ready to move to the conditioning station by noon.

 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 of the strip tool. I have also attached all of the dumped data. The module will be left under vacuum with the water running over the weekend and HV testing will continue on Monday. 

 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 caused the trip. The system restarted and faulted again. As I was watching this time it can be determined that the fault was the result of an over temperature event. This was the caused by the cooling fans not coming on. Which was traced to the fan VFD controllers which both read OP3 which is an Over voltage during constant speed operation. The operating manual lists these as the possible causes

The input voltage is fluctuating abnormally.

• Power network is greater than 200 kVA

• Power factor capacitor switching

• SCR switching on power network

• The drive controller is regenerating— the load causes the motor to run at a frequency higher than drive controller output frequency.

• Intermittent output phase fault

The proposed solutions are

• Install a line reactor.

• Check the input and output circuits for phase failure and rectify. 

I will continue to monitor over the next few days to see if this continues to happen. If it does I will contact ESC.

 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.

 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 out as per the procedure covered in Document 70039 "ISAC Conditioning Station: First Lock-Out and High-Voltage "ON". With the cover off the module was able to achieve ~56.7kV without the Einzel lens on. Eliminate the Einzel lens as a potential source of sparking it was brought to 25kV while the module continued conditioning. Maximum voltage achieve under this configuration was 57.1kV. Increments are now 50V steps. The Canbus continues to be very sensitive to any sparking and is slowing the process down considerably. It does however appear that the module is continuing to condition. I will continue tomorrow after the module moves to attempt to reach 60kV and hold it for 1 hour.

 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 of the interlocks to prevent this from happening. Ultimately as spark took out the CANBUS controller first for the EINZEL lens and then for the BIAS. David Morris has been contacted to have them replaced. The damage of the CANBUS controller for these power supplies is becoming a common problem and should be investigated for if there is a better solution. During testing I experimented with raising the BIAS to near its limit followed by the EINZEL lens and vise versa. From this it was determined that the EINZEL must be raised to high voltage before the BIAS otherwise sparking occurs. Even a step from 0 to 500 volts on the ENIZEL lens with the BIAS at 55kV caused sparking. There are a few combinations of testing along this line I would like to continue with but initially my though is that the BIAS and ENIZEL do not have sufficient clearance for the BIAS to operate above 55kV. Attached is a screen shot of the strip tool and the data. I have not heard from David yet but I do not expect the TCS to be operational today.