An Experimental Study of the Neutronics of the First Gas Cooled Fast Reactor Benchmark Assembly (GCFR Phase I Assembly)
- Argonne National Lab. (ANL), Argonne, IL (United States)
The Gas Cooled Fast Reactor (GCFR) Phase I Assembly is the first in a series of ZPR-9 critical assemblies designed to provide a reference set of reactor physics measurements in support of the 300 MW(e) GCFR Demonstration Plant designed by General Atomic Company. The Phase I Assembly was the first complete mockup of a GCFR core ever built. A set of basic reactor physics measurements were performed in the assembly to characterize the neutronics of the assembly and assess the impact of the neutron streaming on the various integral parameters. The analysis of the experiments was carried out using ENDF/B-IV based data and two-dimensional diffusion theory methods. The Benoist method of using directional diffusion coefficients was used to treat the anisotropic effects of neutron streaming within the framework of diffusion theory. Calculated predictions of most integral parameters in the GCFR showed the same kinds of agreements with experiment as in earlier LMFBR assemblies.
- Research Organization:
- Argonne National Lab. (ANL), Argonne, IL (United States)
- Sponsoring Organization:
- USDOE National Nuclear Security Administration (NNSA), Nuclear Criticality Safety Program (NCSP); US Energy Research and Development Administration (ERDA)
- DOE Contract Number:
- W-31-109-ENG-38
- OSTI ID:
- 7311194
- Report Number(s):
- ANL-76-36; TRN: 77-009085
- Country of Publication:
- United States
- Language:
- English
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REACTOR KINETICS
MOCKUP
CRITICALITY
FISSION RATIO
REACTIVITY WORTHS
ZPR-9 REACTOR
BREEDER REACTORS
EPITHERMAL REACTORS
EXPERIMENTAL REACTORS
FAST REACTORS
FBR TYPE REACTORS
GAS COOLED REACTORS
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HELIUM COOLED REACTORS
KINETICS
REACTOR COMPONENTS
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RESEARCH AND TEST REACTORS
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Nuclear Criticality Safety Program (NCSP)
Atom Concentration
Demonstration Plant
Subcriticality
Worth Measurements
Neutron Spectrum
Kinetics
210500* - Power Reactors
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