On shift: GG , LC

> Logbook #8, pgg 233-236

 Very smooth shift. So far 974.4 nb-1. Run 7057 in progress.

 Energy: 3526.2 MeV  
 
 Beam current at the beginning of shift ~17 mA, at the end  =  11.1 mA

 Typical sigmap: 0.9 MeV
 
 Comments:
 At 19:00 switch target from regulation mode to manual mode. The current
pressure is ~140 psia. We keep a high density (~4.5e14 at/cc) keeping the
nozzle temperature close to the saturation point (30.0K at this pressure).
When nozzle clogs, follow procedure for unclogging, then go to T=32.3 K
and lower the temperature by steps of 0.1K to slowly raise the density or
to conteract clogging.
DO NOT GO BELOW 31.5K OR SEVERE NOZZLE CLOGGING MAY OCCUR.

 Have a good night,

Gabriele and Lorenzo