Another advantage of U-233, pointed out by Dr. Fine , was that 4%
youd permit higher yields in gun type weapons.
Further advantages were seen to be the lower toxicity of U-233 Or:
tabby), and the related technological and fabrication advantages (Dr.
Schreiber).
—
Dr. Rabi asked if the program would interfere with tritium produc~
Inter
action «|
with
tion in case a requirement for that material came along.
:
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Production
ee
I
“Quinn said that the changeover to thorium does not affect the tritium
picture as it is now understood.
Consideration was next given specifically to the subject of prePredetonation, Dr, Bradbury expressed awareness of the Committee's concern
detonation
.
on the reliability of preinitiation estimates, particularly as“they
affect expensive production programs. However, there is every evidence
_
that the subject is understood, Considering all of the bombs which
have been shot, there is about a+ 508chance: that a case of preinitiatjon
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