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The Two Group Theory Of Piles With Multiple Reflectors

Description: The two group theory of infinite slab piles with a single reflector involves six boundary conditions and the evaluation of the determinant of the fourth order to obtain the equation for the determination of critical pile size.
Date: November 11, 1946
Creator: Garabedian, Henry L. (Henry Leslie), 1901- & Householder, Alston S. (Alston Scott), 1904-1993
Partner: UNT Libraries Government Documents Department
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Preparation of Be7 Without Inert Carrier

Description: After bombardment with deuterons, Li metal was dissolved with dilute acid. From this solution Be7 was precipitated as Be(CH)2 on Fe carrier using NH4CH. The contaminates remained in the filtrate. After repeated precipitations in the presence of appropriate holdback carriers, the Fe was extracted with iso-propyl ether, leaving the pure Be7 solution.
Date: May 10, 1946
Creator: Jacobson, L. & Overstreet, R.
Partner: UNT Libraries Government Documents Department
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