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ARTICLE |

Whole-Body Counters

Alexander P. Remenchik, MD; Charles E. Miller, PhD
JAMA. 1966;197(1):47. doi:10.1001/jama.1966.03110010099025.
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Whole-body counters are sensitive radiation-detecting and measuring instruments developed by radiation physicists for determining the amount of radioactivity present in man. Quickly and painlessly they enable the investigator to determine the kinds and amounts of radioactive substances in the body which have accumulated from natural sources, manmade fallout, industrial and laboratory sources, or from tracer isotopes given for medical purposes. This is done by counting emissions from the radioactive material in the body. From a physical point of view these devices do not differ materially from the instruments most physicians are familiar with that are used to assay for radioactivity in body fluids and tissues. They differ from these devices only by their large size, their heavy shielding, and their sensitivity to very low levels of radioactivity. Two principal types of wholebody counters have been developed. One uses a sodium iodide crystal as a radiation detector, and in the other

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The American Medical Association is accredited by the Accreditation Council for Continuing Medical Education to provide continuing medical education for physicians. The AMA designates this journal-based CME activity for a maximum of 1 AMA PRA Category 1 CreditTM per course. Physicians should claim only the credit commensurate with the extent of their participation in the activity. Physicians who complete the CME course and score at least 80% correct on the quiz are eligible for AMA PRA Category 1 CreditTM.
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