100 a | oud juadzad ‘ uolonuayjy uolpolpoy 68 Altitude , Feet 600 _1 Theoretical Curve—+=" QO Pre-Castle , P2V Acft. 400 too 800 4 jo O Pre-Castie , Helicopter O NTS Fission Products _| @ Teapot Figure C.1 Radiation attenuation over land. 200 |1 | | te eas Oo / Fresh Fission Products | juadiag * uollONUAL}y UOIJOIPOY i00 5 L t 600 DSN. Acft. i 800 Figure C.2 Radiation attenuation over water. Altitude , Feet 400 A | Helicopter

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