!  -*-f90-*-  (for emacs)    vim:set filetype=fortran:  (for vim)
  private
 
  public :: register_particles_potential, initialize_particles_potential
  public :: dvvp_dt_potential_pencil, dvvp_dt_potential
  public :: read_particles_pot_init_pars, write_particles_pot_init_pars
  public :: read_particles_pot_run_pars, write_particles_pot_run_pars
  public :: rprint_particles_potential,particles_potential_clean_up