From: Frank Geurts (geurts_at_rice.edu)
Date: Mon Jan 27 2003 - 16:06:45 EST
W.J. Llope wrote:
>
> looks like my pedAsPhys thought was a red herring - apparently
> this configuration is only used for testing not production
> data-taking...
i don't think so: since localmon is dealt with *before* STAR DAQ. TOFp
gets an L0 and a pulser and regards it as an event thus doing all the
stuff it needs to do. So this *will* end up in localmon, but (that's in
Tonko's ballpark) not in the "official" data stream.
[...]
>
> please remember to let me know (today or tomorrow)
> if there are things i can do during the access wed-thurs...
>
noise measurements might be one of the first things that could be done
... it allows us to keep track of any changes but also should do it as a
diagnostics tool (as in why we have this C-section problem).
Here's something I don't completely understand: if i look at some
localmon events I see that sometimes the last 8 TDC channels are 0. But,
if the event is a strobe event the 0s are gone and I can see the
common-stop signal again ... so the TDCs seem to be in place and get
strobed. I am very sure from the last noise measurements i did that the
B-section cables are hooked up (the values were reasonable enough to
assume so and seem to have doubled compared to the measurements before).
The last 8 TDC channels are from a set different discriminators all of
which I set the threshold equal to that of the others- but that couldn't
explain the overall shift in channels you mentioned earlier ...
-f.
This archive was generated by hypermail 2.1.4 : Thu Jul 24 2003 - 00:39:34 EDT