&fortin
  density      = 1.0d3
  diameter     = 2.0d0
  ambient_dens = 1.0d-8

  ! Problem 1 is the uniform sphere;
  ! Problem 2 is the normalized uniform sphere;
  ! Problem 3 is the uniform cube.

  problem = 3
/

&tagging
  max_denerr_lev = 20
  denerr = 1.0d0
/

&extern

  eos_assume_neutral = T

/
