[d2n-analysis-talk] Fwd: S1,S2m Timewalk

[David Flay]

Hey Brad,

I wanted to show you my latest fidgeting with the S2m timing, and the
resulting beta.  S2m time offset looks nice now -- very flat. I think the
corrected time average looks good too, but maybe I can play with the
remaining jitter there -- though it looks to be ~1-2 ns.  This seems to be
the last place to make corrections so that I could get the tail on the
higher end of beta to reduce more, since it's these time averages of S1, S2m
that contribute to beta.  I don't think the time offsets need any more work.

The last two plots are TDC (ns) vs. ADC (ADC channel units) -- to follow up
with what we were talking about in the meeting.  I think the timewalk is
much clearer here than TDC vs. 1/sqrt(ADC).  This is especially true for S1,
and that strange behavior we saw in S2m I believe shows up here at ADC ~ 0
-- that thick section of entries along the TDC axis...

Dave

-----------------------------------------------------------
David Flay
Physics Department
Temple University
Philadelphia, PA 19122

office: Barton Hall, BA319
phone: (215) 204-1331

e-mail: flay at jlab.org
           flay at temple.edu

website: http://www.jlab.org/~flay <http://www.jlab.org/%7Eflay>
             http://quarks.temple.edu
-----------------------------------------------------------





-- 
-----------------------------------------------------------
David Flay
Physics Department
Temple University
Philadelphia, PA 19122

office: Barton Hall, BA319
phone: (215) 204-1331

e-mail: flay at jlab.org
           flay at temple.edu

website: http://www.jlab.org/~flay
             http://quarks.temple.edu
-----------------------------------------------------------
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