no_digested
BEGINNING[BETA_A]  = 50
BEGINNING[ALPHA_A]=  0
BEGINNING[BETA_B] = 50
BEGINNING[ALPHA_B] = 0

PARAMETER[PARTICLE] = ELECTRON
parameter[absolute_time_tracking]=true
PARAMETER[geometry] = open
BEGINNING[E_TOT]  = 84e6

radius = 0.02
radius2 = 0.1


P1: PIPE, L = 1.0
P1[wall] = {
    section = { s = 0,
      v(1) = {0, 0, radius}},
    section = { s = P1[L],
      v(1) = {0, 0, radius}}}



linac: LCAVITY, L=0.115305, voltage=-78e6, rf_frequency = 1.3e9 !Half-wave cavity
linac[wall] = {
    section = { s = 0,
      v(1) = {0, 0, radius2}},
    section = { s = linac[L],
      v(1) = {0, 0, radius2}}}


lat: line = (P1, linac, P1)

USE, lat