@techreport{oai:nifs-repository.repo.nii.ac.jp:00010061,
 author = {"Nishimura,  K. and Horiuchi,  R. and Sato,  T."},
 month = {Apr},
 note = {The drift-kink instability in field-reversed configurations with a beam component is investigated by means of a three-dimensional particle simulation. The unstable mode with the toroidal mode number n = 4 grows with the rate gamma ~ 0.1 - 1.0 omega_ci for a strong beam current and deforms the plasma profile along the beam orbit in the vicinity of the field-null line. This mode is nonlinearly saturated as a result of the relaxation of current profile. Both the saturation leve1 and the growth rate tend to increase as the ratio of the beam current to the plasma current I_b/I_p increases. It is also found that there is a threshold value of the beam velocity upsilon_b ~ upsilon_Ti (ion thermal velocity) for the excitation of the instability.},
 title = {Drift-kink Instability Induced by Beam Ions in Field-reversed Configurations},
 year = {1999}
}