Update on Analysis Progress
Oct 28, 2008

Last week: spoke with Seamus about the fitting program used to correct the rate
dependence for the proton/neutron conversion.

This week: implemented the program.  I seem to have a problem fitting to the 
production data.

1) recommendation from Todd: instead of fitting to an exponential, use approx. 
   to simplify problem.
2) recommendation from Jon: function may not be getting the correct data.  

Have been checking the data for the production runs, and I was loading the 
wrong data into the fitting program (basically, a syntax error that came from 
using a subset of the data).  This is corrected.  I can fit to production data 
now, as well as nitrogen and hydrogen.

  EXT PARAMETER                                   STEP         FIRST
  NO.   NAME      VALUE            ERROR          SIZE      DERIVATIVE
   1  k1           5.00000e+00   constant
   2  k2           5.00000e+00   constant
   3  R3He         1.56500e-01   6.56478e-07   2.47508e-06   1.01699e+03
   4  RH2          5.45167e-02   4.42559e-06   1.66856e-05   1.16153e+01
   5  RN2          2.61443e-01   6.74104e-06   2.54154e-05  -1.59145e+01
   6  Rempty       3.57428e-01   1.92694e-02   7.26505e-02   7.03775e-03

Next steps:
1) I would like to let k1 and k2 "float" to discover best values (used value 
   from Seamus' code)
2) Calculate proton/neutral conversion
3) Nitrogen dilution
4) Apply ratio from empty cell data to background
5) Produce GEn

\amk