&params
  lat_name = 'lat.bmad'
  n_photons = 1000000
  n_bin = 400
  x_min = 6.8e3
  x_max = 8.0e3
  x_var = 'E'
  plot_type = 'histogram'
  ignore_out_of_bounds = F
  plot_size = 400, 400
/