set terminal postscript eps enhanced color

set linestyle 1 lt 2 lw 10
set linestyle 2 lt 1 lw 10
set linestyle 3 lt 3 lw 10

set tmargin 1
set border 3
set boxwidth 0.2
set key right top
set ticscale 0
set xrange [ -1 : 26 ]

set xlabel "Dosimetry Reactions" 0,7
set ylabel "Fission Spectrum Averaged Cross Section, C/E"

set xtics nomirror rotate ( \
  "^{19}F(n,2n)"      1,\
  "^{24}Mg(n,p)"      2,\
  "^{27}Al(n,p)"      3,\
  "^{27}Al(n,{/Symbol a})"      4,\
  "^{32}S(n,p)"       5,\
  "^{46}Ti(n,p)"      6,\
  "^{47}Ti(n,p)"      7,\
  "^{48}Ti(n,p)"      8,\
  "^{55}Mn(n,2n)"     9,\
  "^{54}Fe(n,p)"     10,\
  "^{56}Fe(n,p)"     11,\
  "^{59}Co(n,{/Symbol a})"     12,\
  "^{59}Co(n,2n)"    13,\
  "^{58}Ni(n,p)"     14,\
  "^{58}Ni(n,2n)"    15,\
  "^{63}Cu(n,{/Symbol a})"     16,\
  "^{63}Cu(n,2n)"    17,\
  "^{64}Zn(n,p)"     18,\
  "^{90}Zr(n,2n)"    19,\
  "^{115}In(n,n')"   20,\
  "^{127}I(n,2n)"    21,\
  "^{197}Au(n,2n)"   22,\
  "^{235}U(n,f)"     23,\
  "^{238}U(n,f)"     24,\
  "^{239}Pu(n,f)"    25)
set ytics nomirror

set output "integ.eps"
plot 1 noti w l 0,\
     "integ.dat" usi ($1):3       ti "JENDL-3.2"     w imp ls 1,\
     "integ.dat" usi ($1+0.25):4  ti "JENDL-3.3"     w imp ls 2,\
     "integ.dat" usi ($1+0.50):5  ti "ENDF/B-VI"     w imp ls 3
pause -1

integ2.png