Day Shift Summary for November 21, 1996  Gollwitzer, Jin

	Completed data taking at 3644MeV. The following runs were completed:
		run #   start   stop    int. lum. (nb^-1)
                809     06:11   08:43     175
		810     08:44   11:18     173
		811     11:19   13:54     168
		812     13:55   16:03     156

It was noticed that the above "online" luminosity measurements (and previous
shift summaries) are about 10% greater than the value one gets from Lum_read.
The difference is the background subtraction and window; X. Fan expects only
a few percent different. The total integrated luminosity from Lum_read for 
runs 801-803 + 805-812 is 1715nb^-1 collected in 27hrs at luminosities in the
range of 1.8 to 2.0 10^31 cm^-2 s^-1.

	Sheng investigated the neutral trigger TDC occupancy problem that was 
noticed from the previous shift and can be traced back via the online monitor
histogram printouts to have started sometime during the last stack. A run was 
paused and it was determined that two integrator channels were malfunctioning;
the signals were moved to good channels and the problem is no longer observed
in the online histograms.
	Please check all histogram printouts. If you think there is any
problem, contact an appropriate person. People responsible for different
histograms should also check them. We still need an example folder with "good"
histograms so that everyone can determine if there is a problem.

	The ACNET data was not logged from 23:50 yesterday until 8:15. Please 
check the ACNET parameters, current and momentum, in the DAMP window. Make sure
that the time axis updates. If it does not show a time from the last few 
minutes, then try to restart the ACNET sending program (a procedure is outlined
in the logbook).

	The high rate minimum bias trigger (GM15), that has had 13+ million
triggers written into the rawphi stream, will be removed for the rest of the
running. The rawphi stream was the limiting factor for the running.

	Revised run plan: Since the starting beam current (49mA) was less 
than what was hoped for (60-70mA), there is not enough beam to fully do three
points of 1.5pb^-1. Generally, 100nb^-1 per mA interacting with the jet. The 
next point, ~3625MeV, will use the beam until 15-10mA are left and then
decelerate the remaining beam to the J/psi;  then take data at the J/psi.

					Keith and Sheng