FAST NEUTRON CROSS SECTIONS OF MANGANESE, CALCIUM,
SULFUR, AND SODIUM.
E. S. Troubetzkoy, et al. Contract DAL8-108- 405 --CML-295.
Final Report (for) Phase II, January 1961.
UNCLASSIFIED
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A set of neutron cross sections for manganese, calcium, sulfur,
and sodium has been prepared for energies up to 18 Mev.
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ATTENUATION OF SIMULATED FALLOUT RADIATION BY THE ROOF OF A
CONCRETE BLOCKHOUSE.
M. A. Schmoke and R. E. Rexroad, August 1961.
UNCLASSIFIED
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The purpose of this work was to experimentally verify theoretical
calculations of the effect of roof thickness on the radiation level inside
a concrete blockhouse from a plane of gamma radiation on the roof of the
pbuilding.
Two gamma emitters, cobalt O° and cesium37, were used to simulate
uniform planes of radiation.
The dose rates at various locations within
+he blockhouse were measured with ionization-chanber dosimeters.
Reduction
factors were calculated from the data and compared with theory.
The following conclusions were establish«d:
i.
Comparison of the experimental and theoretical reduction
factcers, which were made along the vertical center line of the structure,
le,
oan
tie
snowed bery good agreement.
at
id
é.
The corners of the blockhouse offered considerably more
protection than did other locations with the building.
3.
The experimental dose rates at the 3-ft height are from
$o% to 70% higher at the center than at the corner for roof thicknesses
from 3 to 50/2b sq ft.
UNCLASSIFIED
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