set term pdf enhanced fontscale 0.75 size 6.in,6.0in
set output 'lost_scatter.pdf'
width=0.0002
load 'hist_list.dat'
set xrange [-60:60]
set yrange [-60:60]
set size square
set object circle size 45
set xlabel 'x [mm]'
set ylabel 'y [mm]'
set key off
set label at graph 0.1,0.9 'B_r = 30ppm'
set label at graph 0.1,0.95 'Lost particles 30{/Symbol m}s < t < 100{/Symbol m}s'
 plot filenames u ($3*1000):($12 > 30.e-6 ? ($5*1000):1/0) pt 6