An evaluation of different methods for space-dependent resonance shielding of cross sections in fast reactors
Within the framework of the Abajan, Bazazjantz, Bondarenko, and Nikolaev (ABBN) shielding factor approach, several methods have been proposed in the past for the treatment of resonance shielding of multigroup cross sections in heterogeneous cells of fast reactor lattices. First, the approximations made in the different methods and their interrelationship is briefly reviewed. Then, three recent efficient methods proposed by Bitelli et al., by Tone, and by Kujawski and Protsik are numerically compared by checking against exact fine-group collision probability calculations. It is found that the method of Bitelli et al. may give erroneous results, while the methods of Tone and of Kujawski and Protsik show satisfactory agreement with the exact calculations.
- Research Organization:
- Reactor Research Centre, CDO 211, RRC Kalpakkam 603 102, Tamil Nadu
- OSTI ID:
- 6816437
- Journal Information:
- Nucl. Sci. Eng.; (United States), Vol. 76:3
- Country of Publication:
- United States
- Language:
- English
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URR (Unresolved Resonance Region) computer code: A code to calculate resonance neutron cross-section probability tables, Bondarenko self-shielding factors, and self-indication ratios for fissile and fertile nuclides
URR (Unresolved Resonance Region) computer code: A code to calculate resonance neutron cross-section probability tables, Bondarenko self-shielding factors, and self-indication ratios for fissile and fertile nuclides
Related Subjects
FAST REACTORS
REACTOR LATTICE PARAMETERS
CALCULATION METHODS
ACCURACY
COMPARATIVE EVALUATIONS
CROSS SECTIONS
FUEL ELEMENTS
HETEROGENEOUS EFFECTS
MULTIGROUP THEORY
NEUTRON TRANSPORT
RESONANCE ABSORPTION
SHIELDING
ABSORPTION
EPITHERMAL REACTORS
NEUTRAL-PARTICLE TRANSPORT
NEUTRON TRANSPORT THEORY
RADIATION TRANSPORT
REACTOR COMPONENTS
REACTORS
TRANSPORT THEORY
210500* - Power Reactors
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