<br><br><div class="gmail_quote">On Mon, Mar 1, 2010 at 5:39 PM, Brad Sawatzky <<a href="mailto:brads@jlab.org">brads@jlab.org</a>> wrote:<br><blockquote class="gmail_quote">
Could you replot with finer binning along the tdc axis? Place a cut on<br>
single tracks, T3 triggers only (no edtm, no T4, etc), and find out what<br>
the units are on the TDC axis. It would be nice to know if the two<br>
peaks are ~10ns apart, or 10ps apart... If it's ps then it is either a<br>
bug or a binning artifact.<br></blockquote><div><br>The plots I sent before already had one-track and trigger cuts.<br><br>I'm binning at 1000 bins in the TDC axis, but I don't see much of a change... going higher (10,000 bins) I get this error message: <br>
<br>Error: Symbol G__exception is not defined in current scope scint_timewalk.C:364:<br>Error: type G__exception not defined FILE:/home/dflay/d2n_analysis/d2n/replay/scripts/LHRS/./scint_timewalk.C LINE:364<br>*** Interpreter error recovered ***<br>
<br>which doesn't make sense to me...<br><br>But, in the meantime, here are the finer binned plots -- they look slightly better, however I'm not absolutely certain. I changed to the 'colz' option to see if I can get any idea of the number of events populating the main band w.r.t. that fainter band at the higher TDC values -- it seems that the higher TDC value 'band' is much less in statistics, if anything. <br>
<br><a href="http://www.jlab.org/~flay/scint_timewalk/">http://www.jlab.org/~flay/scint_timewalk/</a><br><br> <br></div></div>-- <br>-----------------------------------------------------------<br>
David Flay<br>Physics Department<br>
Temple University<br>Philadelphia, PA 19122 <br><br>office: Barton Hall, BA319<br>phone: (215) 204-1331<br><br>e-mail: <a href="mailto:flay@jlab.org">flay@jlab.org</a> <br> <a href="mailto:flay@temple.edu">flay@temple.edu</a><br>
<br>website: <a href="http://www.jlab.org/%7Eflay">http://www.jlab.org/~flay</a><br> <a href="http://quarks.temple.edu">http://quarks.temple.edu</a><br>-----------------------------------------------------------<br>
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