1.1
OBJECTIVES
The objectives of Project &.1 were: 1) te determine ganme
exposures versus distance from the point of detonation of various high-
yield therscouclear devices; end #) to Arey conclusions fron the data__
concerning gamma exposure contours for various types of detanations,
and the validity of scaling laws.
A secondary objective was to determine
the gamma exposures received in several discrete time intervals detwean
time of arrival. of the thermal pulse and one minute after time of detonation.
1.2
BACKGROUND
Initial game radiation may be considered es that enitted during
the first } seconds after detonation.
The initial gaum refiation out
for nuclear devices with yielés up to 250-kt has been well docusented in
previous test operations (References 2, 3, and &).
Gemme-rediation
measurements from high-yield nuclear devices Gazing Operation Try showed.
that the initial geame refiiation @14 not fellow the same scaling law
that had been established for amllier devices (Reference $). This was
a
aa Lt
ATOING ERD OY ACT OFS
3