¶meters
    Qx_ini = 0.55    !tune for setup of lrbbi etc.
    Qy_ini = 0.58
    Q_x0 = 0.51      !horizontal tune at lower left of tune plane rectangle
    Q_y0 = 0.58      !vertical tune at lower left of tune plane rectangle
    Q_z0 = -0.1      !synchrotron tune at lower left of tune plane rectangle
    Q_x1 = 0.57      !horizontal tune at upper right 
    Q_y1 = 0.64      !vertical tune at upper right
    Q_z1 = -0.02     !synchrotron tune at upper right
    dQ_x = 0.002     !horizontal tune step. (There will be 0.06/0.002 horizontal steps)
    dQ_y = 0.002     !vertical tune step. (There will be 0.06/0.002 vertical steps)
    dQ_z = 0.001     !synchrotron tune step. (There will be 0.08/0.001 synch steps)
    Q_z  = -0.1       !synchrotron tune (if Q_z1-Q_z0 = 0, or if dQ_z = 0)
    lat_file = '~dlr/bmad/lat/low_emitt_ew_sym_20040503.lat'  !lattice file
    n_turn = 1000     !number of turns at each tune
    init(1)%vec(1) =  0.0022    !initial horizontal displacement of trajectory
    init(1)%vec(2) =  0.0       !initial horizontal angle
    init(1)%vec(3) =  0.000005  !initial vertical displacement
    init(1)%vec(4) =  0.0       !initial vertical angle
    init(1)%vec(5) =  0.0       !initial longitudinal displacement
    init(1)%vec(6) =  0.0006    !initial fractional energy offset
    particle = 1                !species, (1=positrons, -1=electrons)
    i_train = 1                 !train of bunch being tracked
    j_car = 1                   !car of bunch being tracked
    n_trains_tot = 9            !number of trains in strong beam
    n_cars = 4                  !number of cars in each train
    current = 1.                !strong beam bunch current (mA)
    lrbbi   = .true.            !turn on parasitic interactions
    beambeam_ip = .true.        !turn on beambeam interaction at IP
    close_pretz = .true.        !adjust horizontal separators to ensure collisions
    close_vert = .true.         !adjust vertical separators and vcrosing 7 to ensure collisions
    rec_taylor = .true.         !read digested file with appropriate bunch pattern and transfer 
                                     taylor coefficients
    slices = 5                  !Beam beam interaction is treated as  longitudinal kicks 
    coupling_sb = 0.01          !Emittance coupling assumed for determining size of strong beam
    single_particle = .true.
/

• To plot with physica type "physica"
• At the prompt "PHYSICS:" type "@scan_fix_synch" (You will need to copy file "scan_fix_synch.pcm" from the directory /home/dlr/physica_macro/)
• The scan data file prefix in the example above is "scan_example"
• To make a hard copy type "hardcopy", then "s" to write a postscript file