&bmad_to_opal_params lat_filename = 'lat.bmad' write_opal_particles = .true. write_time_particles = .true. beam_init%n_particle = 27 beam_init%distribution_type(1) = 'GRID' beam_init%distribution_type(2) = 'GRID' beam_init%distribution_type(3) = 'GRID' beam_init%grid(1)%n_x = 3 beam_init%grid(1)%n_px = 1 beam_init%grid(1)%x_min = -.000001 beam_init%grid(1)%x_max = .000001 beam_init%grid(2)%n_x = 3 beam_init%grid(2)%n_px = 1 beam_init%grid(2)%x_min = -.000001 beam_init%grid(2)%x_max = .000001 beam_init%grid(3)%n_x = 3 beam_init%grid(3)%n_px = 1 beam_init%grid(3)%x_min = 0 beam_init%grid(3)%x_max = .000002 beam_init%n_bunch = 1 /