Artículos de revistas
Optimización de mallas de uranio natural para varios moderadores I
Autor
MORALES Y AMADO, I. A.
SERMENT C., A.
Institución
Resumen
WE HAVE FOUND IN THIS PAPER THAT FOR A CYLIMDRICAL NATURAL URANIUM AND LIGHT WATER SUBCRITICAL SYSTEM THERE IS AN OPTIMUM CELL AND URANIUM ROD RADIUS AMONG ALL CELLS AND ROD RADII STUDIED (K- = 0.97, R0 = 1CM., R1= 1.8 CM.) THE FEASIBILITY OF INTERCHANGING NATURAL URANIUM RODS FROM THE U- H2O SUBCRITICAL SYSTEM TO A U-D2O CRITICAL ZERO POWER SYSTEM WAS SHOWN POSSIBLE UTILIZING ONLY OPTIMUM DIAMETER RODS. THE EFFECT OF AN AIR GAP AROUND THE U-ROD, FOR THE LIGHT WATER SYSTEM, WAS STUDIED AND IT WAS SHOWN THAT FOR A GIVEN CELL AND ROD RADIUS THERE WAS AN AIR GAP THICKNESS THAT OPTIMIZED THE INFINITE MULTIPLICATION FACTOR. SOME ESTIMATES ON THE MASSES OF BOTH THE SUBCRITICAL NATURAL URANIUM-LIGHT WATER AND THE CRITICAL NATURAL URANIUM-HEAVY WATER SYSTEMS ARE GIVEN. MONOENERGETIC DIFFUSION THEORY WAS USED AND ALL COMPUTATIONS WERE DONE ON THE IBM 650 MACHINE OF THE UNIVERSITY OF MEXICO. WE HAVE FOUND IN THIS PAPER THAT FOR A CYLIMDRICAL NATURAL URANIUM AND LIGHT WATER SUBCRITICAL SYSTEM THERE IS AN OPTIMUM CELL AND URANIUM ROD RADIUS AMONG ALL CELLS AND ROD RADII STUDIED (K- = 0.97, R0 = 1CM., R1= 1.8 CM.) THE FEASIBILITY OF INTERCHANGING NATURAL URANIUM RODS FROM THE U- H2O SUBCRITICAL SYSTEM TO A U-D2O CRITICAL ZERO POWER SYSTEM WAS SHOWN POSSIBLE UTILIZING ONLY OPTIMUM DIAMETER RODS. THE EFFECT OF AN AIR GAP AROUND THE U-ROD, FOR THE LIGHT WATER SYSTEM, WAS STUDIED AND IT WAS SHOWN THAT FOR A GIVEN CELL AND ROD RADIUS THERE WAS AN AIR GAP THICKNESS THAT OPTIMIZED THE INFINITE MULTIPLICATION FACTOR. SOME ESTIMATES ON THE MASSES OF BOTH THE SUBCRITICAL NATURAL URANIUM-LIGHT WATER AND THE CRITICAL NATURAL URANIUM-HEAVY WATER SYSTEMS ARE GIVEN. MONOENERGETIC DIFFUSION THEORY WAS USED AND ALL COMPUTATIONS WERE DONE ON THE IBM 650 MACHINE OF THE UNIVERSITY OF MEXICO.