gue
the neutron dose twice as effectively as the standard armor.
The therralneutron flux in dry soil increases, The modified, two-man foxhole gives no
better radiation protection than the standard foxhole with one-third cover.
The buried concrete arches provided inadequate radiation protection but
would be satisfactory with improved entranceway design.
WT-1622
-
NEUTRON FLUX FROM LARGE-YIELD BURSTS.
Operation HARDTACK.
J. W. Kinch, D. L. Rigotti, J. Anderson, R. L. Bain, and
J. H. Rugheimer, May 1960.
SECRET-RESTRICTED DATA
mp
(Supersedes ITR-1622-1 and ITR-1622-2).
Measurements were made of
neutron flux and dose as a function of distance for two megaton-range
Getonations.
The Hurst fission-foil method was used to measure flux.
Pue39, Np@3T, y238 > 532 | and gr were employed as detecting materials.
Aut97,
Twenty-five stations were placed at distances varying from 917 yards to 4,100
yards for two large-yield devices.
Neutron dose was calculated from the
measured fluxes by using the single-collision theory of dose contribution per
neutron.
Limited neutron flux and dose measurements were made as a function
of @istcnc irra.
DELETED
oso
Steel buoys were used to support the detecting materials in the Fniwetok ~
lagoon.
Fesults indicate that the buoy system of placing passive detecting
media over water is effective in areas with overpressures up to 90 psi and
can be mace effective in overpressures up to 300 psi by minor modification.