C
coseoe)
Project 12.1 - Threshold Detectors - W. A. Riggers
J-12 participation on Osage consisted of placing gcld samples
at four stations,
Two of these were land stations at approximately
ground zero and 700 yards south of ground zero,
The samples were
placed from surface level to about 20 inches below the surface.
Two
stations were in the water on the larsoon side of the island, one
being about 100 yards west of ground zero andi the other about 700
yards south of
zero.
These samples also were placed from the water
surface to a point about 20 inches below the surface,
One of the main items of interest was to find the difference in
the water end grouni
for absorption of thermal neutrons,
This is
for future calculations of neutron distribution in space where the
As
two medium problem is considered.