Took over from the evening shift at the start of run 768, which is the last of the runs at the peak of Chi2. Before we decelerated to a point below the peak, the beam momentum was measured at 5724.418 MeV/c, for a center of mass energy of 3556.146 MeV. We took 104.4 nb^-1 during this run, making a total of 550.74 nb^-1 taken at the peak (in addition to the 1975 pb^-1 taken in the previous stack). Deceleration took over 90 minutes, due to some unspecified problems with the ramp sequencing, but eventually we were able to start with the beam momentum at 5720.911 MeV/c, or 3555.232 MeV in the CM, with run 769. Run 769 continued for 136.853 nb^-1, and we began run 770, which continues into the day shift. Other than the deceleration delays, the shift was quite smooth - can't ask for much more than that. A note regarding the automatic mount/dismount of tapes once one of the raw tapes is 95% full: (nice, but you need to exercise a little care) make sure that you are keeping track of the tape progress, and have the second round of three raw tapes ready and placed in the vacant drives before that previous tape hits 95% and the run ends. At best it can waste two more nearly empty tapes, as when you miss the 95% deadline, you have to replace all five tapes; at worst it can be very confusing - and you waste the two tapes. :) Cheers, Todd & Enrico summary: Run 786 (at 3556.2 MeV): 104 nb^-1; avg of 1.75 x 10^31 ^^^ |__768 Run 769 (at 3555.2 MeV): 136.9 nb^-1 at same instantaneous rate Run 770 (also 3555.2 MeV): continuing into the day shift