04/17/00 Evening Shift Summary:
 (Log Book: #7, p.75-78)

 On shift: DJ, ZM

 Data Type:  chi0  (Ecm=3426 MeV)
 Beam current at start: 43.2 mA . Beam current at end: 35.3 mA . 
 Typical Luminosity: (2.2-2.5) x 10^31 cm^-2s^-1
 Run: 5002 (257.3 nb-1)
      5003 (274.0 nb-1)
      5004 in progress

  Comments:

 4:30 According to AP10 - 0.1-0.2 mA beam current is being lost
      approximately every 20 minutes. They have seen this ~6 times.
      Lowered Jet density from 1.1x10^14 to 3.0x10^13 cm-3 to see if
      problem is gas-jet related.
 4:50 Beam Valve shut entirely. Run paused.

      Information comes from KEG that a possible cause of beam loss have
      been found and fixed.
 5:15 Beam Valve reopened, resumed run.
      After this everything went smoothly.

      Several DAQ hangs, with successful RESETs.

    Have a good night,

                          Dave and Zaza