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.