Minutes from the E835 weekly meeting - Feb 8, 2000
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In attendance: K. Gollwitzer, M. Graham, S. Seo, M. Stancari, G. Stancari, 
	J. Kasper

Keith announced that he will be on (a well-deserved) vacation for the next 2.5
	weeks. (see his email.)  We agreed that the chore of writing minutes 
	will be rotated among the rest of us during that time.

Please note the list of power outages that Keith will send by email.  There 
	two next week.

Keith also reported that the tunnel is now under supervised access.  
	If there is a shortage of AP50 keys, please give priority to the 
	pbar crews.

Giulio volunteered to prepare shift procedures for starting and monitoring 
	the beam parameters from the acnet console.

Michelle showed a plot of the CCAL cluster timing for pi0pi0 events.  A
	gaussian fit has a mean of 1001 ns and a sigma of 2.02 ns.  These
	are the times given by the offline using the constants from the 
	1997 run. She plans to update the constants, but has given it
	a low priority since the existing constants work quite well.

Michelle reported (for Giovanni Lasio) that the CCAL calibration is in 
	progress. The laser data is also being studied.

Michelle was asked about the (x,y) position of the beam w.r.t to the CCAL.
	For the four stacks, a preliminary position is 

      stack  X(cm)  Y(cm) 
	 4   0.11  -0.23
	 3   0.05  -0.24
	 2   0.06  -0.19
	 1   0.11  -0.12

	where the +x direction is toward the debuncher and the +y direction 
	is up.  Claudia Patrigniani has revived her code from the last run,
	and will provide a more detailed calculation.
	These offsets are not yet in the database.

Michelle also reported that there are hardware problems with two CCAL channels
	which she will investigate downstairs during the shutdown.

SeonHee is looking at the FCAL laser data.

Matt has a preliminary FCAL calibration, and is looking at the FCAL timing
	which may improve his event selection.

Matt will also contact the surveyors about completing the survey measurements
	for the FCAL during the shutdown.

Jason is looking at the special data taken to study the neutral trigger timing,
	in particular the min-bias strobe.  He will prepare a proposal of 
	cabling changes to improve the trigger jitter.

Jason also intends to prepare code to perofrm a quick check of the neutral
	trigger thresholds and integrity, which could be run during shifts
	to monitor the trigger.

Keith asked Jason and Paolo to take care of replacing the broken visual scalers
	with working ones from PREP during the shutdown.

Jason will acquire preprinted tape labels for the run.  (All tapes going to 
	Feynman must have printed labels, not handwritten ones)