parameter[particle] = electron
parameter[e_tot] = 2.40000e+09
parameter[geometry] = open
beginning[beta_a] = 10
beginning[beta_b] = 10


b: sbend, l = 2.0, g = 0.1
pf: fork, superimpose, ref = b, offset = 0.2, to_line = b1

dd: drift, l = 3

b0: line = (b)
b1: line = (dd)
b1[geometry] = open

use, b0