------------------------------------------------------------ Date: Sun Jul 2 15:57:58 2000, Shift: 08:00-16:00 Supervisor: JHL, with: AM Log book#2 pages 114 - 117 Shift Summary: ------------------------------------------------------------ Machine: Series of problems: "Tandem Fault","Booster problem", "RF problem",.... No useful beam for the shift. Data: No data is taken. Some observations (from run 1591): * "Trigger 4" (ZDC trigger) looks like a good minimum-bias trigger (see page 116). * Trigger Overlap: Trigger 4 / Trigger6 = 18%. * Slope for (BB time diff)/(ZDC diff) ~ 1. * Sigma of BB time difference is 5 nsec: Sigma_z(interaction) ~ (5/2)*30cm = 75cm! ------------------------------------------------------------
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