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SRE
After some“fartherdiscussion in which Dr, Libby again voiced his
caveat against bares shots, this part of the session was concluded,
At 11:35 aim,“Dr. Frahk Pittman met with the Committee to discuss
Produc-
tion
Matters
production requirements, ahd the effect of the test results on these
-
requirements,
a
o
a
All member's of the Committee, the Secretary and Mr, Tomei
were present. ‘Dr, Mark, Dr, Froman, andDr, Fine also remained.
sD. Pittman reported that the new requirement for tritium was, at
Triiium
most, half of the previous requirement.
Hence it willnot be necessary
to enrich all of the Savannah River reactors, or as many at Hanford as
planned,
Another 30-40% reduction in the requirement would make it un-
necessary to use any enriched loadings at Savannah River,
Dr. Pittman
also said that if no tritdua were required for thermonuclear weapons,
_ some enrichment would be required at Savannah River up to 1956, but none
thereafter.
|
;
Dr. Pittman mentioned a probable change in the manner of specifying
Plutonium plutonium quality.
af8
It was proposedto state the specification in terms
of the number of neutrons emitted per gram per second rather than in
terms of g/T (grams of plutonium per ton of uranium}, The definition of
high quality plutonium would be 20 n/g-see rather than 200 g/T.
Tt was planned to fulfil the plutonium requirenents by a balanced
Balanced production schedule at two levels, 20 n/g-sec for high quality material,
Plutonium —
Schedule and 80 n/g-sec for standard material.
The latter level corresponds to