ESC came today and "repaired" the chiller. There was something wrong with the VFD controller. The were able to get it to start and run correctly again but were not able to recreate the problem. At this point it appears that it has magically disappeared. 

 The turbo pumps have been turned on and are running

 Rob Walker has drained the primary side of the conditioning station. It will be flushed, filled  and chemically treated. It was desired to chemically treat the primary side before before but it took so long that sediment was found (things started to grow).

The pumps have been turned on at ~9:30 this morning. Current values are 6.61 Mohm TCS:DIC1 @19.4 C. HV testing will start momentarily.

Rob walker has flushed and refilled the primary side of the system (note the water still looks nasty). This morning the primary side of system needed to be bled as there were air pockets. Also TK2 had reached its low point and needed to be topped up.

 Once again the 7.5 compressors are tripping due to faults. I believe it is due to over pressure as a result of the chiller fans not coming on. I have contacted ESC.

 During HV conditioning of TM4 with Ta#40 there was a spark at ~43 kV that caused the Bias card to "fry". Dave Morris has been contacted and has said he will replace it tomorrow.

 The HV conditioning reached a maximum of 44kV today before a spark took out the canbus card. I will attach the data once I have had a chance to format it. 

 Argon venting has started. It will be left to vent over night. 

ESC was called out again to inspect the chiller as it was showing the same problem as before. This time when started one fan came on (this is not what happened last time) but the fan controlled by the VFD did not. It was eventually traced to a relay that has been replaced. The system was tested as best it could without a load and appears to be working. It will be difficult to tell until a heat load is in place if the fix has solved everything. 

Module moves of TM#1 with Ta#39 from ITW to SHC then TM#1 with UCx#6 from SHC to the conditioning station moves went well.

 The roughing pumps have been started on the conditioning station. As it is late in the day for David he will make the turbo pump connections tomorrow.

TM#1 with UC#6 has been moved from the conditioning station to the west target station, move went well.

TM3 has been moved from the south hot cell to the conditioning station. David and I completed the move. All went well.

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 TM3 to CS vessel seal have been sprayed with helium and leak checked. No leak has been found. The TM3 is leak tight in CS.

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.

TM#3 with no target and no source tray has been moved from the conditioning station to the north east silo, move went well.

   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

July 9 2013 - Attempted to repeat previous test lost PS at 45kV. Voltage continued to degrade during the day.

July 10 2013 - Max voltage achieve 42.5kV discussed with Friedhelm and decided to run the EINZEL lens at 50% of the BIAS in case this is the source of the sparking

July 10 2013 - Max voltage 40.5kV with EINZEL lens. Communicated with Friedhelm and Lia. It was decided 40kV was good enough. Started developing standard test (see below for testing procedure) for Module so a with and without source tray 

July 12 2013 - Only one spark on route to 40kV. PS tripped after ~10 minutes at 40kV. Near the end of the day there wasn't enough time to repeat test.

July 15 2013 - Test repeated, could not hold 40kV. 39kV held for 1 hour with EINZEL lens off. Sparking was making it difficult to keep on.

July 15 2013 - TM3 was electrically disconnected from the conditioning station. The station ran at 60kV for 1 hour with zero sparks.

July 16 2013 - Test repeated with goal of 39kV intense sparking after 20 minutes caused the PS to trip. Once again the EINZEL lens PS was tripping and eliminated from use to make the test easier. With the failure of this test once again Friedhelm was once again consulted. He advised to stop testing as it appears to be causing damage. There is concern that the module is degrading. Lia has stated this does not affect the source tray and that a source tray will be inserted into TM3 and she accepts responsibility if the module does not hold voltage. 

Standard testing procedure for the bias was as follows. Please note that the EINZEL lens was supposed to follow the BIAS steps at 50%. This procedure was approved by Friedhelm prior to operating. This test was never successfully completed and we will not be able to complete a "apples to apples" test once the source tray is installed.

> Step to 5000 kV If no sparking after 1 minute

> Step to 10000 kV If no sparking after 1 minute

> Step to 15000 kV If no sparking after 1 minute

> Step to 17500 kV If no sparking after 1 minute

> Step to 20000 kV If no sparking for at least 1 minute after 5 minutes

> Step to 22500 kV If no sparking for at least 1 minute after 5 minutes

> Step to 25000 kV If no sparking for at least 1 minute after 5 minutes

> Step to 27500 kV If no sparking for at least 1 minute after 5 minutes

> Step to 30000 kV If no sparking for at least 1 minute after 5 minutes

> Step to 31000 kV If no sparking for at least 1 minute after 5 minutes

> Step to 32000 kV If no sparking for at least 1 minute after 5 minutes

> Step to 33000 kV If no sparking for at least 1 minute after 5 minutes

> Step to 34000 kV If no sparking for at least 1 minute after 5 minutes

> Step to 35000 kV If no sparking for at least 2 minute after 10 minutes

> Step to 35500 kV If no sparking for at least 2 minute after 10 minutes

> Step to 36000 kV If no sparking for at least 2 minute after 10 minutes

> Step to 36500 kV If no sparking for at least 2 minute after 10 minutes

> Step to 37000 kV If no sparking for at least 2 minute after 10 minutes

> Step to 37500 kV If no sparking for at least 5 minute after 10 minutes

> Step to 38000 kV If no sparking for at least 5 minute after 10 minutes

> Step to 38500 kV If no sparking for at least 5 minute after 10 minutes

> Step to 39000 kV If no sparking for at least 5 minute after 10 minutes

> Step to 39500 kV If no sparking for at least 5 minute after 10 minutes

> Step to 40000 kV Maximum 3 sparks per hour maximum test time 3 hours.

TM#4 with SiC#29 has been moved from the south hot cell to the conditioning station move went well.

3 turbo pumps on TM4 and CS have been started. The pumping down is good so far, The TM4 PNG1 reading is more than 10 times higher than IG1 which is at the same chamber. It could be a controller problem.  Other 3 high vacuum gauges behavior normal.  The TM4 IG1 is replaced today and it works fine now.