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Experimental Bucklings and Void Effects in Heavy Water Lattices of Natural Uranium Oxide Rod Clusters

Journal Article · · Nuclear Science and Engineering
OSTI ID:4713809
 [1];  [1];  [1]
  1. Du Pont de Nemours (E.I.) and Co., Aiken, SC (United States). Savannah River Laboratory

The material bucklings of twenty-five D2O moderated lattices of natural UO2 rod clusters were measured in the Process Development Pile (PDP). The measurements were made in one-region loadings, and should therefore be subject to little systematic error. A number of the lattices employed voided housing tubes around the fuel assemblies. Values of migration areas inferred from measurements of positive periods are also presented. An evaluation of the errors in the buckling measurements indicated that the bucklings should be accurate to about 1%. The migration areas are compared with theoretical values obtained from the Benoist theory, and the agreement is shown to be good.

Research Organization:
Du Pont de Nemours (E.I.) and Co., Aiken, SC (United States). Savannah River Laboratory
Sponsoring Organization:
USDOE National Nuclear Security Administration (NNSA), Nuclear Criticality Safety Program (NCSP); US Atomic Energy Commission (AEC)
DOE Contract Number:
AC09-76SR00001
NSA Number:
NSA-17-028134
OSTI ID:
4713809
Journal Information:
Nuclear Science and Engineering, Journal Name: Nuclear Science and Engineering Vol. 16; ISSN 0029-5639
Publisher:
Taylor & Francis
Country of Publication:
United States
Language:
English