1000 \ | ° \ Gamma dose rate-Belle Is. 471.2 eo. \ Theoretical gamma dose rate (17) ° 100 + mr/hr 10 - i_ 0.1 1 10 Days after May 14, Figure 3 | 100 1000 1954 Gamma dose rates at three feet at Belle Island, Eniwetok Atoll, May 15, 1954 to March 21, 1955, compared with the slope of t™ -2 and the decay of fission produc tg) from the slow neutron fission of u235