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Gacma Dose Rate fron a Field Six Inches in Radius ad|Canter
FourInc. es AoveSurface
+
Dose rate of gama fro= a point seuree
L
rz 60)
ae
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were ry * r/br
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= ro SS.
we oN de>
ae
C= activity ir euries per acquare foot
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For everage ener, o° gacras (ev)
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Comparison Gacma Dose "ates Frog I[nficite Plane et @ -cig-t of Three Fe. t
Aove tie Gr-und to Area of ix Tuc cacius aid eig t of Four Incnes,
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a
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Bepacur e
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