&params
  source_wig_name = 'OSC_PICKUP'
  kick_wig_name = 'OSC_KICKER'
  lens_ele_name = 'LENS1'
  lat_file = 'lattice/with_optical_line.bmad'
  n_track_pts = 14000
  grid_n_r = 20
  grid_r_max = 0.017367956759503981
  grid_n_theta = 24
  lens_n_index = 1.515
  lens_thickness = 2.0
  side_from_peak = -1
  phase_delay = 0.0
  light_amplification_ratio = 1.0
  use_helical_und = 0
  b_max_helical = 0.15
/