User name R. Michaels
Log entry time 02:13:55 on October13,2006
Entry number 186964
keyword=helicity check (good)Here is a helicity check from 200K events of a recent run, see fig 1.
Helicity is measured redundantly on each HRS. The fraction of time
spent in helicity==0 is normal (ca 1.6%). You get this pleasant
picture when you exclude the first 2.9 sec of data (time to load
helicity predictor) and don't plot T9. The plot in the standard
online GUI doesn't do that.
FIGURE 1
