                    DBWBAC

This program runs under Win95 and probably Win98 or NT.

The purpose is to calculate the background corresponding
to the DBW or FULLPROF 6th order polynomial.

This may be useful if you consider that the background
is almost correct, but could be manually improved in some
part of the powder pattern.

Input : the 6 values of the polynomial plus BKPOS (frequently
        BKPOS is choosen as 90 2-theta degrees).
        Put those values on the first line in a name.dat file
        (and do not forget a return at the end of line).

        ex (free format) :

  510.23   214.69  -388.41   135.18   252.96  -286.83   90. 


Output : a set of pairs 2-theta / background, given each 2 
         degrees (in 2-theta). The output will be in a file
         name.imp ready to be copied/pasted in the .pcr file.

         ex :

    2.00  290.16
    4.00  271.89
    6.00  256.70
    8.00  244.36
   10.00  234.65
   12.00  227.39
   14.00  222.36
   16.00  219.38
   18.00  218.28
   20.00  218.89
   22.00  221.05
   24.00  224.59
   26.00  229.38
   28.00  235.28
   30.00  242.16
   32.00  249.90
   34.00  258.37
   36.00  267.48
   38.00  277.11
   40.00  287.18
   42.00  297.58
   44.00  308.25
   46.00  319.10
   48.00  330.06
   50.00  341.07
   52.00  352.05
   54.00  362.97
   56.00  373.76
   58.00  384.39
   60.00  394.81
   62.00  404.98
   64.00  414.87
   66.00  424.46
   68.00  433.72
   70.00  442.63
   72.00  451.17
   74.00  459.33
   76.00  467.10
   78.00  474.47
   80.00  481.44
   82.00  488.00
   84.00  494.16
   86.00  499.91
   88.00  505.27
   90.00  510.23
   92.00  514.81
   94.00  519.02
   96.00  522.86
   98.00  526.35
  100.00  529.51
  102.00  532.34
  104.00  534.86
  106.00  537.08
  108.00  539.03
  110.00  540.70
  112.00  542.13
  114.00  543.32
  116.00  544.28
  118.00  545.03
  120.00  545.59
  122.00  545.95
  124.00  546.14
  126.00  546.15
  128.00  546.00
  130.00  545.69
  132.00  545.22
  134.00  544.59
  136.00  543.80
  138.00  542.85
  140.00  541.72
  142.00  540.41
  144.00  538.90
  146.00  537.17
  148.00  535.20
  150.00  532.98
  152.00  530.46
  154.00  527.63
  156.00  524.43
  158.00  520.83
  160.00  516.78



A. Le Bail (198?)
armel@fluo.univ-lemans.fr    or    alb@cristal.org
http://pcb4122.univ-lemans.fr/  or http://www.cristal.org/