ɪɾ ɪz kˈɑːmənli jˈuːzd æz ɐ ɡˈæmɚ ɹˈeɪ sˈoːɹs ɪn ɪndˈʌstɹɪəl ɹˌeɪdɪˈɑːɡɹəfi tə loʊkˈeɪt flˈɔːz ɪn mˈɛɾəl kəmpˈoʊnənts.
It is commonly used as a gamma ray source in industrial radiography to locate flaws in metal components.