set term postscript color enhanced 'Times-Roman' 22
!rm inj_twiss.ps
set output 'inj_twiss.ps'
set xlabel 'z[m]'
set ylabel '{/Symbol b} [m]'
set xrange [0:5]
plot 'injection_line_twiss_old-inf_1.5m.dat' u 1:2 w l lt 1 lc 1 lw 2 t '{/Symbol b}_x(inf)=1.5 m',\
''  u 1:3 w l lt 1 lc 3 lw 2 t '{/Symbol b}_y(inf)=10 m',\