eve shift Jan 30,2000

Subject: eve shift Jan 30,2000
From: Vivian O'Dell (odell@fnal.gov)
Date: Fri Feb 04 2000 - 15:45:40 CST

Shift Summary for eve shift, 01/30/00

On Shift: SG, RK

Hours of beam delivered at all intensities:8.5
Hours of beam delivered at nominal intensity: ~5.0
Hours of KAMI data 5.0

Accounting of lost time: beam tuning


Runs ended this shift:

many short runs with different Be inside beam

Tapes brought to FCC this shift: none

Accesses during shift: none


Description of Shift:

run spill time comment
              19:00 End of beam studies is declared for today.
                       Yields of 3pi0 events indeed looks much better
                       Intensity is ~5.E11

15694 19:00 Start kami_hadron run with 20'' Be
              20:40 Stop the run. Yields are 3.2M and 1.9K for
                       n and K, respectively
15695 20:45 Now we have 10'' of Be.
                       RK reduces rate of UCal trigger for this run
                       Odd enough, life time gets worse. This paradox
                       is explained by the fact that beam trigger B6
                       is in overlap with calibration triggers. The latter
                       have higher priority and veto B6. Since overall trigger
                       rate was reduced with respect to run 15694 effect
                       of this fake dead time becomes more prononce.
              21:40 Stop the run. N(n) = 2.0M N(K) = 2.1K
15696 21:50 This time 0'' of Be. K/n are much higher now...
              22:15 Stop the run N(n) = 2.5M N(K) = 2.0K

15697 22:25 Start with all possible Be (38''). This run will
                       not end on this shift...

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