Total Body Potassium Counting
View from inside the 40K whole body counter
Special detectors capture gamma rays emitted by a subject. The gammas come from a naturally occurring isotope of potassium found in the human body. Total body potassium is an accurate index of the mass of metabolically active tissues in the body.
[WBC technique] [theory]
[process] [schematic]
USDA/ARS
Children's Nutrition Research Center
1100 Bates Street, Houston, Texas 77030
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