Derivation of Criticality Safety Benchmarks from ZPR Fast Critical Assemblies

Conference · Sun Nov 16 04:00:00 EST 1997

OSTI ID:555232

Schaefer, R. W. ^[1]; McKnight, R. D. ^[1]

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1. Argonne National Laboratory (ANL), Argonne, IL (United States)

Scores of critical assemblies were constructed, over a period of about three decades, at the Argonne National Laboratory ZPR-3, ZPR-6, ZPR-9, and ZPPR fast critical assembly facilities. Most of the assemblies were mockups of various liquid-metal fast breeder reactor designs. These tended to be complex, containing, for example, mockups of control rods and control rod positions. Some assemblies, however, were 'physics benchmarks'. These relatively 'clean' assemblies had uniform compositions and simple geometry and were designed to test fast reactor physics data and methods. Assemblies in this last category are well suited to form the basis for new criticality safety benchmarks. The purpose of this paper is to present an overview of some of these benchmark candidates and to describe the strategy being used to create the benchmarks.

• Research Organization: Argonne National Laboratory (ANL), Argonne, IL (United States)
• Sponsoring Organization: USDOE National Nuclear Security Administration (NNSA), Nuclear Criticality Safety Program (NCSP)
• DOE Contract Number: W-31109-ENG-38
• OSTI ID: 555232
• Report Number(s): ANL/ED/CP--93644; CONF-971125--; ON: DE97053648
• Country of Publication: United States
• Language: English

Related Subjects

22 GENERAL STUDIES OF NUCLEAR REACTORS
BENCHMARKS
Benchmark Candidates
Benchmark Creation
CRITICALITY
Nuclear Criticality Safety Program (NCSP)
SAFETY ANALYSIS
ZERO POWER REACTORS