-------------------------------------------------------------------------- Astra Version 3.0 DESY, Hamburg 1999-2002 Mon Mar 19 13:55:09 Parameter file is: dcinj.in Cornell DC gun injector Initialize element settings: -------------------------------------------------------------------------- Cavity: Reading cavity field data from : fields/dcgun.dat Cavity Frequency f = 0.0000 GHz maximum gradient -18.94 MV/m at 3.9744E-02 m estimated average gradient 3.844 MV/m nominal phase 90.00 deg Reading cavity field data from : fields/buncher.dat Cavity Frequency f = 1.300 GHz maximum gradient 2.571 MV/m at 0.5650 m estimated average gradient 0.7398 MV/m nominal phase 225.1 deg Reading cavity field data from : fields/srf2cell.dat Cavity Frequency f = 1.300 GHz maximum gradient 10.51 MV/m at 2.006 m estimated average gradient 2.378 MV/m nominal phase 18.07 deg Reading cavity field data from : fields/srf2cell_r.da Cavity Frequency f = 1.300 GHz maximum gradient 22.28 MV/m at 2.919 m estimated average gradient 5.040 MV/m nominal phase 44.69 deg Reading cavity field data from : fields/srf2cell.dat Cavity Frequency f = 1.300 GHz maximum gradient 22.28 MV/m at 3.655 m estimated average gradient 5.040 MV/m nominal phase 319.2 deg Reading cavity field data from : fields/srf2cell_r.da Cavity Frequency f = 1.300 GHz maximum gradient 22.28 MV/m at 4.568 m estimated average gradient 5.040 MV/m nominal phase 339.1 deg Reading cavity field data from : fields/srf2cell.dat Cavity Frequency f = 1.300 GHz maximum gradient 22.28 MV/m at 5.304 m estimated average gradient 5.040 MV/m nominal phase 260.1 deg -------------------------------------------------------------------------- Solenoid: Reading solenoid field data from: fields/solenoid.dat maximum Bz field 8.2020E-02 T at 0.2584 m Reading solenoid field data from: fields/solenoid.dat maximum Bz field 4.6955E-02 T at 1.103 m 28000 particles from file dist/28K.dist Cathode located at: z = 0.0000 m Particles taken into account N = 28000 total charge Q = -0.1077 nC horizontal beam position x = -3.4644E-04 mm vertical beam position y = -5.3560E-06 mm longitudinal beam position z = 0.0000 m horizontal beam size sig x = 0.2949 mm vertical beam size sig y = 0.2949 mm longitudinal beam size sig z = 0.0000 mm total emission time t = 3.9551E-02 ns rms emission time sig t = 1.1146E-02 ns average kinetic energy E = 3.4766E-08 MeV energy spread dE = 3.4194E-05 keV transverse beam emittance eps x = 7.6923E-02 pi mrad mm correlated divergence cor x = -0.1672 mrad transverse beam emittance eps y = 7.6923E-02 pi mrad mm correlated divergence cor y = 4.8263E-02 mrad longitudinal beam emittance eps z = 0.0000 pi keV mm correlated energy spread cor z = 0.0000 keV -------------------------------------------------------------------------- on axis tracking of the reference particle: initial position z = 0.0000 m x = -1.3698E-04 mm y = -2.1195E-06 mm initial momentum p = 0.0000 MeV/c global phase shift phi = 0.0000 deg time step for integration dt = 3.000 ps -------------------------------------------------------------------------- Online element settings: -------------------------------------------------------------------------- particle reaches position z = 8.566 m time of flight is t = 29.37 ns final momentum p = 12.44 MeV/c final phase (cavity 1) phi_end = 90.00 deg -------------------------------------------------------------------------- off axis tracking of the reference particle: initial position z = 0.0000 m x = 0.2948 mm y = 0.2949 mm final position x = -0.2693 mm y = 1.127 mm divergence px/pz = -5.7654E-02 mrad py/pz = 0.2412 mrad -------------------------------------------------------------------------- tracking of 28000 particles : tracking will stop at z = 8.566 m space charge forces are INCLUDED mirror charges at the cathode are taken into account working ... mirror charge switched off at: 0.3531 m final checkpoint at z = 8.566 m total number of iteration steps: 10979 ********************************************************************** Particles taken into account N = 28000 total charge Q = -0.1077 nC horizontal beam position x = -5.1125E-03 mm vertical beam position y = -8.3427E-03 mm longitudinal beam position z = 8.566 m horizontal beam size sig x = 0.3411 mm vertical beam size sig y = 0.3407 mm longitudinal beam size sig z = 0.8954 mm average kinetic energy E = 11.96 MeV energy spread dE = 14.74 keV transverse beam emittance eps x = 0.4617 pi mrad mm correlated divergence cor x = 0.3391 mrad transverse beam emittance eps y = 0.4611 pi mrad mm correlated divergence cor y = 0.3384 mrad longitudinal beam emittance eps z = 9.078 pi keV mm correlated energy spread cor z = -10.70 keV Particle Statistics: Total number of particles = 28000 Electrons = 28000 particles at the cathode = 0 active particles = 28000 passive particles (lost out of bunch) = 0 probe particles = 0 backward travelling particles = 0 particles lost with zrmax = 0 ********************************************************************** emittance information saved to file : dcinj.Xemit.002 emittance information saved to file : dcinj.Yemit.002 emittance information saved to file : dcinj.Zemit.002 ref. part. information saved to file : dcinj.ref.002 Phase-space distributions logged in : dcinj.Log.002 ********************************************************************** finished simulation Mon Mar 19 14:59:37 2007 elapsed time : 2733.6 seconds execution time : 0.0 seconds system time : 0.0 seconds Goodbye. --------------------------------------------------------------------------