Maka X, nleba anya nchedo radieshon na radieshon siri ike;adabara maka ụlọ ọrụ ike nuklia, osooso, ngwa isotope, ụlọ ọrụ mmepụta ihe X, nnwale na-adịghị emebi emebi, redio (iodine, technetium, strontium), ọgwụgwọ cobalt, radieshon, ụlọ nyocha redio, akụrụngwa mmeghari ohuru, akụrụngwa nuklia, nlekota gburugburu ebe obibi, ntuziaka mkpu oge iji hụ na nchekwa nke ndị ọrụ.