Cæsium-137 Content of Lambs

Abstract

THE cæ;sium-137 γ-activity of 10 lambs, which had been used previously to investigate some relationships between potassium-40 content and composition¹, was measured concurrently with potassium-40 γ-activity on the Los Alamos human counter². The lambs averaged 88 lb. in live-weight and were purchased from a feed-lot at La Jara, in southern Colorado, in March 1960. The counting conditions have been described earlier¹. The γ-counts from the upper and lower channel settings were entered on I.B.M. cards, and a computer tabulated and printed the cæsium results as μμc./g potassium³. Calculations were based on previously determined calibration curves for the counter.