6. Leg bone of a woman who died of radium poisoning. The bright regions show where the radium has been deposited. Hot spots are clearly visible.

From an article, “The Late Effects of Internally Deposited Radioactive Materials in Man,” by Aub et al., in Medicine—a professional journal, Vol. 31, No. 3, September, 1952

USAEC—Knolls Atomic Power Laboratory
7. Capsules of cobalt⁶⁰, shielded in a water tank. One hundred and thirty million dollars’ worth of radium, twice the world’s present supply, would be needed to equal the rays from this powerful gamma source.

USAEC
8. Cobalt irradiation.

1. The metallic element cobalt is machined into wafers slightly larger than a dime.

2. The wafers are placed edge to edge in aluminum containers, then inserted into an atomic furnace, or reactor.