On Shift: Roberto Calabrese, Todd Peddlar The deceleration and cooling of the beam was completed at 2:30. E_cm = 3685.9 MeV 16 mA were lost during deceleration ( from 70mA to 54 mA). We have used the first hour to make studies on the bias voltage of VLPC. Then pedestal run and start of data taking. Some problems during the run: - The luminosity is too low with respect what is expected. A further increase of jet density ( 27%) caused an increase of luminosity of only 10%. MCR called to ask if this is due to a different position of the beam. To be investigated. From the fixed left and right lum_mon counters, we find the same value ( within few %) for mean instantaneous luminosity and integrated luminosity. Thus the problem is not a left-right positioning problem. Is it due to poor up/down positioning? - Monitor do not start (fn835z window 'frozen' after the command source mon_setup) - Straws tripped, HV restored - For a few minutes, strong energy instability of the beam (E_cm goes up of about 1.7 MeV and then come back to the psi' value 3686 MeV) Integrated Luminosity: Runs 877 : 184 nb-1 878 : ongoing Beam current (at present) 51.15 mA Roberto and Todd