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