ion55ION is the destination for your favorite binge-worthy dramas! Anchored by a collection of critically acclaimed shows to keep you entertained all day long.Parent Nuclides. Direct parent isotope is: 55 Co. Formation. 55 Fe can be artificially produced by neutron irradiation of stable iron isotopes: 54 Fe(n,γ) 55 Fe or 56 Fe(n,2n) 55 Fe. Accordingly, iron-containing components such as steel