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26, Tf desired, uranium 233 could be produced to some
extent in the Savannah River reactors, at a sacrifice in tritium
production.
In addition, consideration is being given to the
construction of a "converter" pile to convert uranium 235 to
uranium e335.
37.
Smaller Nuclear Cores.
pertinent data,
A list of nuclear cores, with
is wiven in Tnabie I for reference purposes.
38. Plutonium cannot be used in the gun-type weapons
(Mark 8, 9, 10, and 11) because of its higk neutron background ana
resulting large predetonation probability.
foe.
i. lta
The production
of the Mark 8 and Mark 9 in appreciable numbers in 1952 will
therefore entail a sisecable diversion of uranium 235, and re-
sult in a temporary "excess" of plutonium.
Nuw High Yield Nuclear Core. .
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