Thermodynamic equilibrium of hollow non-neutral plasmas

New annular confinement configurations of one component plasmas, correspond ing to global thermal equilibria in a cylindrical Penning-Malmberg trap wit h an axial conductor, are investigated both numerically and analytically. I n the case of infinite length plasma, analytical solutions are calculated e xplicitly in the limit of small Debye length. In the case of finite length plasma, the self-consistent solution of the thermal equilibrium Poisson's e quation is obtained numerically, and the dependence of the density distribu tion on the different parameters of the system is illustrated. (C) 2000 Ame rican Institute of Physics. [S1070-664X(00)03411-X].