amounts of Na’* would result in large deviations in the decay time of the gamma dose rate.
The
offsite monitoring stations of JTF-7 did not disclose decay perturbations that could be attributed
to this effect.
However, the NRDL repurts evidence of Na” in the fallout collected on the ships
operated by Project 2.6.
Because no definitive measurements are available at this time and the Np”’? gamma dose rate
contribution is negligible, the material balance calculations included in this report are based on
mixed fission products only.
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