Critical Studies of Core B for the Enrico Fermi Atomic Power Plant (ZPR-III Assembly No. 35)

Technical Report · Fri Feb 01 04:00:00 EST 1963

DOI:https://doi.org/10.2172/4700693· OSTI ID:4700693

Doyle, T. A. ^[1]; Hess, A. L. ^[2]

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1. Argonne National Lab., Idaho Falls, ID (United States); Atomic Power Development Associates, Inc., Detroit, MI (United States)
2. Argonne National Lab., Idaho Falls, ID (United States)

Critical studies of a simplified mockup of the second loading (Core B) for the Enrico Fermi fast reactor were made. The core consists of a fully enriched, UO₂-stainless steel cermet clad in stainless steel and cooled by sodium. The high critical mass found for the reactor mockup led to a series of experiments on reducing neutron leakage from the core by surrounding it with different reflectors. With a nickel reflector in place, measurements were made of the reactivity worths of various engineering features of the Fermi reactor, distributed and local reactivity coefficients, various fission and capture rates and fission ratios, and the prompt-neutron lifetime. Finally, with a nickel oxide reflector in place, some of the above measurements were repeated.

• Research Organization: Argonne National Laboratory (ANL), Idaho Falls, ID (United States)
• Sponsoring Organization: USDOE National Nuclear Security Administration (NNSA), Nuclear Criticality Safety Program (NCSP); US Atomic Energy Commission (AEC)
• DOE Contract Number: W-31109-ENG-38
• NSA Number: NSA-17-026843
• OSTI ID: 4700693
• Report Number(s): ANL-6669
• Country of Publication: United States
• Language: English

Related Subjects

21 SPECIFIC NUCLEAR REACTORS AND ASSOCIATED PLANTS
73 NUCLEAR PHYSICS AND RADIATION PHYSICS
CAPTURE
CERMETS
CRITICALITY
Critical Mass
FAST FISSION FACTOR
FAST NEUTRONS
FUEL CANS
Fermi Reactor
Fission Ratio
LIFETIME
LIQUID METAL COOLANT
MASS
MEASURED VALUES
MOCKUP
NEUTRONS
NICKEL
NICKEL OXIDES
Nuclear Criticality Safety Program (NCSP)
POWER PLANTS
PROMPT NEUTRONS
REACTIVITY
REACTOR CORE
REFLECTORS
Reactivity
Reactor Mockup
SODIUM
STAINLESS STEELS
UO2
URANIUM DIOXIDE