MEASUREMENTS OF THE MATERIAL BUCKLINGS OF LATTICES OF NATURAL URANIUM RODS IN D$sub 2$O

Technical Report · Sat Jan 20 04:00:00 EST 1962

DOI:https://doi.org/10.2172/4792695· OSTI ID:4792695

Palmedo, P F; Kaplan, I; Thompson, T J

The experimental and analytical bases of the determination of the material bucklings of uranium-D/sub 2/O lattices are presented. Techniques which were developed, particularly with the intent of measuring material bucklings in the MIT lattice facility, are described. The design considerations and experiments dealing with the spatial distribution and magnitude of the neutron source in the lattice facility are discussed. The source distribution was analyzed as it entered the subcritical assembly tank when the tank contained only D/sub 2/O and when the tank contained a lattice of uranium rods in D/sub 2/O. The detailed investigation of the over-all flux distributions in lattices included a study of the nonseparability of the macroscopic and microscopic radial distribution. A set of computer codes was developed to reduce and analyze fully the data from flux distribution measurements. The bucklings of three lattices of 1.010-inch diameter natural uranium rods in D/sub 2/O were measured. These measurements are shown to be in good agreement with measurements made in similar lattices at other laboratories. (auth)

• Research Organization: Massachusetts Inst. of Tech., Cambridge
• NSA Number: NSA-16-015525
• OSTI ID: 4792695
• Report Number(s): NYO-9660; MITNE-13
• Country of Publication: United States
• Language: English

Related Subjects

BUCKLING
COMPUTERS
DISTRIBUTION
HEAVY WATER
LATTICES
MEASURED VALUES
NATURAL URANIUM FUEL
NEUTRON FLUX
NEUTRONS
PHYSICS
URANIUM DIOXIDE
USES
VESSELS