10 * FISSION activity (£9 NTS / SECOND ) 64 ! | — FLATHEAD NX DOGHOUSE I°xI" Nal CRYSTAL — _ © STANDARD CLOUD a YFNBI3 €-55 = ¢ LST 611 0-53 cE N — AVERAGE FALLOUT COMPOSITIONT~ ( COMPUTED ) —_——f ~ 10° — KX ¢ 107 bee Le ¢ ioe# — To 10"! a 10 10? 103 AGE (HR) Figure 3.34 Photon-decay rate by doghouse counter, Shot Flathead. 107 10