Make New Entry, Make Followup Entry
User name jroche
Log entry time 15:52:33 on November 13, 2010
Entry number 339888
This entry is a followup to: 339671
keyword=Helicity problem "history"The attached plot hows that the double pulsing of the LNE signal that affected the helicity signal appeared on October 28 and disappeared on November 5 when Bob Michaels reshaped the LNE of the scaler that records the helicity transitions. The "repair" happened at the beginning of the Kine 2-low data takig.
The top plot shows the fraction of events wihtin a run for which there is double pulsing as a function of the run number. The bottom plot shows the number of trigger accumulated in the same runs.
PS: I used the data in the scaler_history.dat file to produce this file.
A copy of this log entry has been emailed to: rom@jlab.org
Figure 1
