a
164
this nature, the Naval Radiological Defense
Laboratory has done a yery extensive kind of
study on wachdown mechanisms, the type of
Bolutions to use, the type of surfaces and
whatnot.
This phase of the fallout program
perhaps has been more exhaustively explored
than any other,
Another noseibility is the use of
grevel beds by which fallouts can be essen-
tially buried to a wide area around the builde
ing and thug supreas the very heavy doses
from acute fallout.
In conclusion of thia phose of the
thing, I would Just like to point out the
further endeavors that are possible along this
direction.
Namely, an examination of existing
buildings to find out what sort of proteotion
factors they represent, what are the real
mechaniems that are available to a person down
in the basement of, let's sev, 70 Columbus
Avenue or any other facility]
The Jangle Data to our knowledge is
the only data which furnishes any information
whatsoever on the roughness, the effective
roughness of surfaces,
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