From: Geary Eppley (eppley_at_physics.rice.edu)
Date: Wed Mar 26 2003 - 11:29:22 EST
Hi
Why don't we change as little as possible during the next several weeks
while we track down the HV problem. I would leave the ramp parameters
alone.
If we don't get any trips, we'll switch the HV back in a few days if there
is a controlled access.
Geary
On Wed, 26 Mar 2003, Frank Geurts wrote:
>
>
> W.J. Llope wrote:
> >
> > frank - where's the tofrhv.log data from before Tue Mar 25 14:53:00 2003?
>
> /data/hv/tofr/eventlog/tofrhv030325.log
>
> [...]
>
> >
> > another qquestion: i remember hearing that specific ramp
> > parameters are set differently for busses A and B. (different
> > trip limits too?). anyway, now that the cabling is swapped
> > for the present test, do we not need to set those parameters
> > as before to be consistent w/ the previous conditions?
> >
>
> trip limits are the same for all busses. The ramp parameters are still
> set for the original configuration. Geary and I watched the new config
> ramp up with these old parameters ... just to see how the A+ bus could
> dealed w/ a higher ramp voltage. No problem at all so I am about to
> change the ramping parameters for all channels accordingly limiting the
> "dead" time of system after a trip (which was ~(3+7)min)
>
>
>
>
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