constraint_eqn_062 Subroutine

   subroutine constraint_eqn_062(tmp_cc, tmp_con, tmp_err, tmp_symbol, tmp_units)
      !! Lower limit on f_alpha_energy_confinement the ratio of alpha particle to energy confinement times
      !! author: P B Lloyd, CCFE, Culham Science Centre
      !! args : output structure : residual error; constraint value;
      !! residual error in physical units; output string; units string
      !! Lower limit on f_alpha_energy_confinement the ratio of alpha particle to energy confinement times
      !! #=# physics
      !! #=#=# falpha_energy_confinement, f_alpha_energy_confinement_min
      !! and hence also optional here.
      !! Logic change during pre-factoring: err, symbol, units will be assigned only if present.
      !! falpha_energy_confinement : input real : f-value for lower limit on f_alpha_energy_confinement the ratio of alpha particle to energy confinement
      !! t_alpha_confinement : input real : alpha particle confinement time (s)
      !! t_energy_confinement : input real : global thermal energy confinement time (sec)
      !! f_alpha_energy_confinement_min : input real : Lower limit on f_alpha_energy_confinement the ratio of alpha particle to energy confinement times
      use constraint_variables, only: falpha_energy_confinement, f_alpha_energy_confinement_min
      use physics_variables, only: t_alpha_confinement, t_energy_confinement
      implicit none
            real(dp), intent(out) :: tmp_cc
      real(dp), intent(out) :: tmp_con
      real(dp), intent(out) :: tmp_err
      character(len=1), intent(out) :: tmp_symbol
      character(len=10), intent(out) :: tmp_units

      tmp_cc = 1.0D0 - falpha_energy_confinement * (t_alpha_confinement / t_energy_confinement) / f_alpha_energy_confinement_min
      tmp_con = f_alpha_energy_confinement_min
      tmp_err = (t_alpha_confinement / t_energy_confinement) * tmp_cc
      tmp_symbol = '>'
      tmp_units = ''

   end subroutine constraint_eqn_062