CSPAM/FMT problem understood

Chris Walter (walter@rsgs02.lngs.infn.it)
Tue, 27 Jun 1995 20:35:01 +0200 (MET)

Hi,

OK we know what was going on with the CSPAM not reading out now. It
turns out the system is working but we were fooled by the non-standard
way that the CSPAM reads out. We were looking at CSPAM only events.
But it turns out there are lots of "Empty" events on microvax one that
are really from microvax 2. If we checked to make sure it was a
microvax one event(which meant it would almost always contain an ERP)
then we saw things were reading out.

We saw we were able to run now on microvax #1 in mini without errors.
We need to try the other microvaxes next as there might be bad STOP
master inputs etc.... We will try to do some data size tests. Most
of tomorrow is pretty much shot in the tunnel I think because there is
going to be some really serious power outage.

OK so here is a homework problem for you all:

By looking at the triggers info and the amount of data without CSPAM
now(using 2-face and greater ERPs) predict the data increase if we
were to plug the CSPAM in...(ignore HIPT and FMT they readout very
rarely so we can readout these out without a problem with long
timewindows.)

Answers should be on my terminal when I come in tomorrow. I will try
to re-calculate this more-carefully tomorrow also..... and do some
tests when we get the detector back....

-Chris

Also note runs are now 4.5 hours. Raw data files are about 210 Mbytes