Report to S-1 Committee
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Nuclear Weapons and Related Technology\Fission Weapons
1942 Dec 08
Originating Research Org.:
OpenNet Entry Date:
2002 Jun 14
Purity requirements of "49". To make a bomb which has only a small chance of failure to reach the maximum possible efficiency requires a purity of the same order as that now being attained in the production of uranium metal. Purity requirements. Purification of "49" . Development of extraction process.