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Doing a Pulser Run
Note: The tail pulser cable is left connected to the sectors;
the pulser is enabled or disabled through MiniDAQ.
Verify that the anode-wire high voltage is off; other voltages should
be at their normal settings.
Verify that the output cable from the BNC tail pulser in the Slow Controls
rack is plugged into the top connector on the left side of the sectors
(viewed from the FEE side).
Go to the Run Control desktop; if the EVENT TYPE is not ``padpulser''
and the DAQ/SC state is ``idle,'' pull down the ``OTHER EVENTS''
menu and do an ``unconfigure.''
When/if the DAQ/SC state is ``initialized,'' click CONFIG and a
configuration window will pop up. (Only items in the configuration
window are used by MiniDAQ at configuration time; you may ignore the
settings in the other window.) Enable the desired Rosies by clicking
on them, then double click on the ``Padpulser'' event type. Click
OK. (It is better not to ``EXIT;'' the configuration window
shows which Rosies were selected.)
When the DAQ/SC state is ``idle,'' go to the main window and set the
run and tape numbers; the comment;
enable taping and netfeeds, if desired. If you want to use the calculated
gains online (e.g., for 10-to-8-bit translation and gain correction), you
must have ``Update On-line Tables'' selected.
Normally, ask for 64 events.
If one wants raw data events, 10-bit zero-suppressed ADC data
is usually adequate. More likely, one might want to output calculated
results: Channel properties, Gain shifts. The calculated result
tables are tiny.
When the settings are final, click GETSET.
When the DAQ/SC state is ``poised,'' click on GO.
If no Run Control logger window is open, pull down the OPTIONS menu
and open one. Verify that events are being logged. If events are not
being logged, and the logger window has been open for awhile, exit from
it and open another one...the logger windows wear out.
A 64-event run takes about 7 minutes. Watch the logger window
for empty events; these should occur after a few more than the
requested number of events. (Begin-run and slow-controls events are
counted in the event number in the logger window.)
Written: July, 1996 by Doug Greiner and Wayne Betts
Last modified: July 10, 1997 by R.Bossingham
Roy Bossingham, LBNL