parameter[lattice] = "Tao ERL example"
no_digested

beginning[beta_a] = 5
beginning[beta_b] = 5

parameter[geometry] = open
parameter[e_tot] = 10e6
parameter[absolute_time_tracking] = T

freq = 1.3e9

cav: lcavity, L = 1, rf_frequency = freq, n_cell = 9, voltage = 10e6



cav1: cav
cav2: cav

r56 =  0.12
t566 = 1.23
                       
d1: drift, L = 0.1
d2: drift, L = 0.1
d3: drift, L = 0.1

t1: taylor, L = 10.5*c_light/freq, {5: r56 | 6} 
 
arc: line = (t1)
!o_arc: overlay = {t1[tt56]:r56, t1[tt566]:t566}, var={r56, t566}


linac.beg: marker
linac.end: marker

linac: line[multipass] = (linac.beg, d1, cav1, d2, cav2, d3, linac.end)

o_phase: overlay = {cav1[phi0]:phideg*pi/180, cav2[phi0]:phideg*pi/180}, var={phideg}
o_phase[phideg] = 1

erl: line = (linac, arc, linac)


use, erl