Low Level in Vivo Measurement of Iodine-131 in Humans
- 1 April 1963
- journal article
- research article
- Published by Wolters Kluwer Health in Health Physics
- Vol. 9 (4) , 401-405
- https://doi.org/10.1097/00004032-196304000-00003
Abstract
The calibration of a whole body counter for the measurement of pc amounts of I-131 in human thyroids is described. Two 3-in, diameter by 2-in. thick sodium-iodide crystals are used, connected in parallel and placed on each side of the neck over the thyroid area. Thyroid burdens as small as 20 pc may be measured at a 90 per cent confidence level with a 30-min counting period using the in vivo method described.Keywords
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