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 will reach 60kV and that there is an interaction between the EINZEL and the BIAS. I am not certain if that interaction is internal or external to the module. Attached is a screen shot and the dumped data.