Ar Ares of Toto! (Photo and Compton)
A
0.03165
l
i
i
600
i
l
jf
i¢
1
poo
ENERGY (KEV)
Tow
Fig. 3.26 Theoretical and Experimental Ratios of the Area of the Photopeak to Total Area and Fractional Absorption in a lein, NaI Crystal
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l
ito
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jot
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titi
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q
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bitiiit
f—
3
FATT
PHOTO PEAK CORRECTION FACTOR
(GAMMA RAYS/VOLT COUNT/MIN)
(00:
(oo
SOO
600
ENERGY (KEV)
Fig. 3.27 Factor to Convert Area of Photopeak in Gamma Rays/Volt
Count/min into Number of Gamma Rays/min
81