[Prex] No RC meeting today; update

[Dustin McNulty]

Dear all,

There will be no RC meeting this afternoon.  We will resume regular 
meetings tomorrow.

Good news: There has been no unexpected downtime in the hall since the 
beginning of Swing shift last Wednesday and we have been running 
production at 70uA nearly the entire time.   The only exception was Day 
shift on Friday during the Wien flip.  The only hall "glitches" we've 
encountered during this 4 day period were IOC related, and all were 
recoverable remotely and caused very little if any downtime.  It is 
however worth noting that since the Wien flip, stable beam delivery has 
been difficult, often with many trips (over 15 per hour), and with 
extended periods of BNA (for various reasons such as RF problems and 
invasive hall B tuning--to get them back after the Wien flip).   In this 
88 hour period, from start of Swing last Wednesday to end of Owl this 
morning, we have collected over 14 good Coulombs, putting our current 
total at just over 35 C.  During 4 consecutive shifts over last 
Wednesday and Thursday, we collected 5.5 good Coulombs which represents 
68% efficiency!  This is our target for the rest of the run.

We are currently in a Moller measurement and it will continue into Swing 
shift.  We will then go back to production running and continue until 
MCC starts Beam Studies on Tuesday Day.


Best,
Dustin