Re: more SM4

Chris Walter (walter@cithe504.cithep.caltech.edu)
Thu, 28 Sep 1995 14:03:15 -0700 (PDT)

Eric Said:

>
> I'd suggest unplugging CSPAM, just in case it may create problems on
> subtle situtations not yet considered.
> As far as I know, trigger timing (arrival) information is independently
> provided by a TDC (in branch 1) which is read by equipment 11.

Well I don't agree that it will cause problems. I really thought
about and tested the system. What might cause subtle problems is the
fact that the stop-masters are connected to eachother. But since we
restart on every event stoping them is not a problem.

Im not sure about the branch 1 TDC. What is its resolution? I feel
more comferatable getting this information from the thing that
actaully caused the STOP. But OK could you look at the branch 1 TDC
and see what is in it?

> >What is going on?
>
> Completely disregard runs 10968-10981. 4B07 went bad during the
> night of last Sunday. As a result of that, all these MACRO runs

Thanks for explaining.

> Good MACRO RUNs before I unplugged CSPAM from the STOP MASTER (in SM4) are
> 10985-10990.

OK I'll check this.

>
> BTW, I just noticed that the SM3 CSPAM input to the STOP MASTER is actually
> not connected to its other end...
> So, you should never see any CSPAM latched into the SM3 stop master.
>
I'll check this too....

-Chris