National Geographic : 1958 Sep
Kodachrome by Willard K. Culver (i NCR Oak Ridge Stores Medicinal Isotopes in an Earth-banked Concrete Vault With his tongs, a technician from the cancer research center removes a vial of radioactive iodine. He deposits it in a "pig," the lead cask in which he will wheel it to the bedside of a thyroid patient. Because the thyroid attracts the body's intake of iodine, physicians use the irradiated variety for concentrated bombardment of the gland. 334 Radio-iodine capsules are filled at Abbott Laboratories, Oak Ridge. Too light for radiation therapy, these doses merely determine a patient's ability to absorb iodine. Abnormal absorption may indicate a thyroid disorder.