Loss Monitoring Scope at D49

Scintillator paddles located just downstream of the D49 proton target collimator are used to monitor the losses as beam strikes the target.  These scintillators allow one to observe the losses associated with each proton bunch as well as DC beam between the bunches and in the abort gaps.  Signals from the phototube are input to an oscilloscope upstairs.  The scope is configured so that signals for an entire Tevatron orbit are captured.  ASCII data files containing the raw scope data are available at http://www-bd.fnal.gov/fecode-bd/vxworks_write/fe/lc9300/.  The filename includes a timestamp for the data acquisition.

The following is a description from Stephen Pordes...

12/04/02
www-bd.fnal.gov/fecode-bd/vxworks_write/fe/lc9300
is the web address of the Binkley scope that looks at two counters set
up at 30 degrees or so from the D49 target.
Charlie Briegel is doing the DA and Brian Hendricks has done the display..

we are tuning the way the software operates...
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the current plan is:

a fresh start at the beginning of a store;
write the scope contents to disk and clear the scope every 4 hrs;
write and clear the scope at the end of the store;

the format is some header stuff and then 10000 points (2ns intervals) all
as one huge set of comma separated entries.

I think this is a model of the way I think we can make data available..we
may want some sort of infrastructure beyond this but this is the basics.

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to display the current contents of the scope go to D27
select Plot Setup
Array device - type T:WF (Tev Wave Form)
Property - select Reading
Number of Elements - enter 0 for all (there are 10,000)
Plot Rate - select 1_SHOT
Plot Type - select Connected Points
select Return

go through all the questions it asks.

you can select a window in the display for finer resolution..drag the mouse
to generate a box and then click again outside the display...
the 'zoom out' will take you back to the original full display.
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to plot a particular dataset that you've seen via the web list in ACNET..
(this isn't as nice as it could be)..
you need to determine the ordinal number of the file (ie it is the 'n'th
file)

go to page D96, DEMO, page 1
set T:WFFILN to n
go to D27
select Plot Setup
Array Device - type T:WFFILE
the rest as above...
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