Determination of 32P In Vivo

Abstract
A transmission proportional counter and a NaI (Tl) scintillator, operated in coincidence for detection of 32P beta rays emitted from the head, is better for in vivo measurements than a bremsstrahlung counter. The background is lower and is much less variable from person to person. Relatively little shielding is required. The 32P body burdens of people who eat whitefish from the Columbia River near Hanford can be measured by this method.

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