Measurements of Bucklings and Void Effects in D₂O • Moderated, Organic • or H₂O • Cooled Lattices of UO₂ Rod Clusters

Technical Report · Mon Jun 01 00:00:00 EDT 1964

DOI:https://doi.org/10.2172/4028629· OSTI ID:4028629

Benton, Frederick D. ^[1]

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1. Du Pont de Nemours (E.I.) and Co., Aiken, SC (United States). Savannah River Lab.

Material bucklings for a variety of UO₂ rod clusters on a triangular 9.33-inch lattice pitch in D₂O were determined by substitution experiments in the Process Development Pile. Measurements were made with clusters of 19, 31, and 37 half-inch UO₂ rods in which the coolant media were varied to include D₂O, H₂O, organtcs, or air. The bucklings, which were determined both by a one-group perturbation method and by a two-group flux matching method, ranged from 0.80 to 5.60 m^–2.

• Research Organization: Du Pont de Nemours (E.I.) and Co., Aiken, SC (United States). Savannah River Lab.
• Sponsoring Organization: US Atomic Energy Commission (AEC); USDOE National Nuclear Security Administration (NNSA), Nuclear Criticality Safety Program (NCSP)
• NSA Number: NSA-18-036777
• OSTI ID: 4028629
• Report Number(s): DP--873
• Country of Publication: United States
• Language: English

Related Subjects

22 GENERAL STUDIES OF NUCLEAR REACTORS
73 NUCLEAR PHYSICS AND RADIATION PHYSICS
AIR
Aluminum
BUCKLING
CONFIGURATION
FUEL ELEMENTS
GAS COOLANT
HEAVY WATER COOLANT
HEAVY WATER MODERATOR
MEASURED VALUES
NEUTRON FLUX
NEUTRONS
Nuclear Criticality Safety Program (NCSP)
ORGANIC COOLANT
ORGANIC MODERATOR
OSCILLATIONS
PDP
Process Development Pile (PDP)
QUANTITATIVE ANALYSIS
REACTORS
RESEARCH REACTORS
RODS
URANIUM DIOXIDE
WATER COOLANT
ZONES