Log entry time 00:04:44 on January28,2001

Entry number 55906

4:00: B Shift starts.



Crew: 	G. M. Urciuoli			SL

	Marius Coman			TO

	Brian Braue			3rd

	Laird Kramer			Replay	



Time	Run	Target	N. of Events 	Prescalers 	Comments



15:28	1774	LH2	   0.482 M	1/7500/10/7500/1	Stopped (see

							below).



16:34	An alarm apparently about VDC connection appears. After some investigation the alarm seems to be presumibly false.  After a pause caused by lack of beam the data taking restarts.



17:36	Run 1775	junk.



It was discovered that the reason of the alarm was the left arm HV crate failure.

DAQ stopped



18:40 	Run 1776	Cpsmic Rays Run , prescalers = 1/7500/1/7500/1. 



19:45 Left arm HV crate replaced.		



Run 1777-1781: Junk  



20:49 Run 1782 Cosmic Rays, prescalers = 1/7500/1/7500/1.



21:00: the  power supply in the left arm HV crate that still had problems 

was recovered.



Time	Run	Target	N. of Events	Presacalers	Comment	

21:14	1783						Junk





other problems appeared: Roc2 had to be rebooted (another access requested to fix

this problem), thresholds of VDC apparently zeroed.  Thresholds are not jet fixed at the end of this shift.