TTT 7EnL 005 1O&— F “ae pe, 8zefOE 1LY 104 aL it 0 ‘| ] oc ae ve o HIGH '9’Cs MARSHALLESE eh r _| « TYPICAL MARSHALLESE bri 105-4 7 - e AEC TEAM ¢| L Potoage £ © BACKGROUND A L Zt 3 3 q 7 a:= slo! 7 O 7 __| 3!0 2-l09 10° FIGURE’4. 0 -2 w Lu x 4 O . = a 2= 7 “qlo5 (1f 2> Sf 10 6 | wn i- dD ood | | ! io | 20 3706 ! 30 ! | 655, “60n5° 40, l J | 70 60 50 40 CHANNEL NUMBER 80 l 90 | 1074 100 Unprocessed gamma-ray spectrographs obtained with an 11-1/2 inch Na-1(T1l) crystal in a shadow-shield type whole body counter. The channel width was 20 Kev, Traces of 137cs and 60Co are apparent in the background spectrum, The right hand scale was obtained by calibration with a standardman phantom, and requires correction for other body sizes; it is adjusted for the 137cg peak. i re oO a

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