(Borja and Rai)

We followed the procedure of switching on the turbo-pump safely at the ETMY. The turbo-pump was switched on more or less about 7pm and the pressure very quickly went down to 10^-5 torr at which point we turned on the discharge gauge (about 7:40pm). We did wait until the presure was below 10^-6 torr before we powered up the power supply to the ESD HV amplifier (at about 8:30 pm). I verified, looking at the analogue readouts of the ESD HV outputs, that they were not railing as reported being a known issue in the past. This will allow me to take new charging measurements tomorrow when the ETMY pressure is safe at or below 10^-7 torr (more about this in another entry).