Shift Summary for 6/6/00  8:00-16:00
On Shift: JK,MN
Log Book #8 Pages 53-57

Run Summary:

1P1 (3526.25 MeV ... the cursed point)
Current Before Deceleration    : 50.5 mA
Current at Beginning of Running: 45.7 mA
Current at end of Shift        : 42.3 mA

Typical Luminosity: 2.7x10^31 cm^-2 s^-1
Typical Beam Width: 1.8 MeV/c

Run   
5782  Pedestal Run
5783  Given to Evening Shift

Comments:
1 DAQ Hang. 

14:25 The beam loss jumped to -2.7 mA/hr. We decided to give it a couple
      minutes to verify that it was not just a fluke fluctuation. After two 
      minutes it jumped to -5 mA/hr so we called Giulio. 10 minutes later he 
      called to say the emittances had blown up because a cooling power supply 
      had tripped. We paused run 5783 and turned off the jet (and straws) while
      this was fixed.

15:25 Still paused. The momentum cooling power supply tripped when an air 
      compressor on the same circuit kicked in. One of them is now being
      moved to a different circuit. Until it is moved, Giulio says that a
      different cooling system can be used to keep the beam from blowing up,
      but it can't control the energy (it has already drifted
      substantially). So, we can't resume running until the old power supply
      is in place (estimated to be shortly after 4:00p).
      

Good Evening,
Jason & Matteo 
 run 5783 and turned off the jet (and straws) while
      this was fixed.

15:25 Still paused. The momentum cooling power supply tripped when an air 
      compressor on the same circuit kicked in. One of them is now being
      moved to a different circuit. Until it is moved, Giulio says that a
      different cooling system can be used to keep the beam from blowing up,
      but it can't control the energy (it has already drifted
      substantially). So, we can't resume running until the old power supply
      is in place (estimated to be shortly after 4:00p).
      

Good Evening,
Jason & Matteo