&ring_aperture_params
  !lat_name = "lat.bmad"		 ! Input lattice
  !lat_name="/nfs/cesr/online/machine_data/lattice/cesr/bmad/chess_und_20120112.lat"
  !lat_name = 'chess_lat.bmad'
  !lat_name = '/home/cem52/nfs/linux_lib/ctao/lat_1.bmad'
  lat_name = '/home/cem52/nfs/linux_lib/ctao/lat_1.bmad'
  !lat_name='/home/cem52/erl/USR/cesr_upgrade/lat_1.bmad'
  !lat_name = '/home/cem52/erl/USR/lattice/cesr_upgrade23b.lat'
  !lat_name = '/home/cem52/erl/USR/lattice/rubin_cesr_upgrade.lat'

particle_file_name = "l1_n100_p50.dat"	 ! Input particles

parallel=true
plot_on=true
plot_every_n=1
verbose = true				 ! Print info to screen on
n_turns=1000

!ptc_calc_on = .true.
!touschek_calc_on = .true.

theta_max = 3.141592654

!frequency_drift_on = .true.
amplitude_scan_on = .true.
angle_scan_on = .false.
bunch_tracking_on = .true.
taylor_tracking_on = .true.

n_angles = 30
n_sigma_pz = 12

nJa=20
nJb=12
nJz=12

step_a = 1
step_b = 1
step_z = 1

rf_on = .false.
radiation_damping_on = .false.
radiation_fluctuations_on = .false.

beam_init%bunch_charge = 100e-12

!beam_init%center(6)=0.01
 
 beam_init%n_particle = 600
  !beam_init%distribution_type = 'ellipse', 'ellipse', ''
  beam_init%distribution_type = 'ellipse', '', ''
  beam_init%ellipse(1)%part_per_ellipse = 100
  beam_init%ellipse(1)%n_ellipse = 6   
  beam_init%ellipse(1)%sigma_cutoff = 12
  !beam_init%ellipse(2)%part_per_ellipse = 5
  !beam_init%ellipse(2)%n_ellipse = 3
  !beam_init%ellipse(2)%sigma_cutoff = 6

/