00351nam a2200109Ia 4500100002800000245014200028260001100170260002500181260000900206300000700215650001900222  aDoluwarawatta Gamage,L.  aEvaluation of a second Prototype Co-60 Scanner for the Imaging of voids (corrosion pits) in Large bore oil Risers on subsea oil platforms  aLondon  bUniversity of Brunel  c1989  a83  aCorrosion Pits