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MCNP Benchmark Analyses of Critical Experiments for Space Nuclear Thermal Propulsion

Conference · · Transactions of the American Nuclear Society
DOI:https://doi.org/10.1063/1.43154· OSTI ID:5884656
 [1];  [1];  [1]
  1. Brookhaven National Laboratory (BNL), Upton, NY (United States)

The particle-bed reactor (PBR) system is being developed for use in the Space Nuclear Thermal Propulsion (SNTP) Program. This reactor system is characterized by a highly heterogeneous, compact configuration with many streaming pathways. The neutronics analyses performed for this system must be able to accurately predict reactor criticality, kinetics parameters, material worths at various temperatures, feedback coefficients, and detailed fission power and heating distributions. The latter includes coupled axial, radial, and azimuthal profiles. These responses constitute critical inputs and interfaces with the thermal-hydraulics design and safety analyses of the system.

Research Organization:
Brookhaven National Laboratory (BNL), Upton, NY (United States)
Sponsoring Organization:
USDOE National Nuclear Security Administration (NNSA), Nuclear Criticality Safety Program (NCSP)
OSTI ID:
5884656
Report Number(s):
CONF-930601--
Journal Information:
Transactions of the American Nuclear Society, Journal Name: Transactions of the American Nuclear Society Vol. 68; ISSN 0003-018X; ISSN TANSAO
Publisher:
American Nuclear Society
Country of Publication:
United States
Language:
English