parameter[p0c] = 5e9
bmad_com[radiation_damping_on] = T

ff = 0.1

q1: quad, l = 0.5, k1 = 0.71, tilt = 0.01, y_offset = ff
q2: quad, l = 0.5, k1 = -0.61, y_offset = ff

d: drift, l = 0.3

b2: sbend, l = 0.1, g = 0.2, num_steps = 10, y_offset = ff, e2 = 0.1, e1 = 0.2

bb: sbend, l = 3, g = 0.1, num_steps = 20, y_offset = ff
b: bb, y_offset = ff

s1: sextupole, l = 0.01, y_offset = ff
s2: sextupole, l = 0.01, y_offset = ff

rf: rfcavity, l = 1.2, rf_frequency = 250e6, voltage = 0.5e7, phi0 = 0., y_offset = ff

ss: solenoid, l = 0.3, ks = 0.2

sector: line = (b, s1, d, q1, d, bb, d, q2, d, s2, rf, b2, ss)
ring: line = (b1, k1, 4*sector)

b1: sbend, l = 0.1, ref_tilt = 0.2, g = 0.001, dg = -0.0005
k1: kicker, l = 0.1, hkick = 1e-5, tilt = 2

use, ring