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User name V. Sulkosky
Log entry time 18:24:11 on June16,2009
Entry number 281767
keyword=Right Dipole Trip from June 12I have attached a zoomed in chart of the right dipole current, liquid
levels and flow rate from June 12 between 23:45 and 23:55.
Here are the curve descriptions:
Blue: dipole current
Green: dipole liquid level
Brown: dipole flow rate
Olive: dipole momentum reading
It appears the dipole current started to ramp down around 23:47:30.
I believe that for some reason Jin tried to adjust the current to
reset it and the current started to increase. Interestingly this is
when the liquid level also started to increase and soon after the
flow rate. A minute later, the liquid level dropped and the magnet
tripped.
The clear thing is that the magnet started to ramp down prior to any
other effect. The display indicates a dead zone where all the
readings are flat. It might be an artifact of zooming in on the plot.
FIGURE 1
