Amber, Danny, Thomas

With our bad RF cable fixed, we hooked the original CO2Y laser and driver up and found that it still lased well at 50 Watts.  So we plan on putting the spare CO2 laser back in storage (after we dry it out).

One very odd thing that confused us for a couple of hours is that after we dressed and organized some cables, the laser wouldn't turn on again!  Not only that, the readbacks of current and voltage draw was in the negatives when it should be nominally: I =28 Amps, V = 28 Volts.  Fil and Peter King double checked that the power supply wasn't the issue and able to drive current on a resistor.  Then I remembered that the readback from the power supply's current and voltage go to an AA chassis in the CER before going to the ADC. 

We then found the AA chassis was actually turned off, which is really odd because no one should've be touching those electronics.  Trending the data, it looks like the problem started at 10:54 AM local time.  Anyway, once the chassis was turned on, the laser ran like clockwork.....  Luckily, all of our tests and jostling didn't misalign the beam too badly downstream on the two irises so should be good to try a contrast defect measurement.