Prompt Neutron Lifetime for the NBSR Reactor

Conference · Sun Jun 24 00:00:00 EDT 2012

OSTI ID:1038105

Hanson, A L; Diamond, D

In preparation for the proposed conversion of the National Institute of Standards and Technology (NIST) research reactor (NBSR) from high-enriched uranium (HEU) to low-enriched uranium (LEU) fuel, certain point kinetics parameters must be calculated. We report here values of the prompt neutron lifetime that have been calculated using three independent methods. All three sets of calculations demonstrate that the prompt neutron lifetime is shorter for the LEU fuel when compared to the HEU fuel and longer for the equilibrium end-of-cycle (EOC) condition when compared to the equilibrium startup (SU) condition for both the HEU and LEU fuels.

• Research Organization: Brookhaven National Laboratory (BNL), Upton, NY (United States)
• Sponsoring Organization: AMERICAN NUCLEAR SOCIETY
• DOE Contract Number: DE-AC02-98CH10886
• OSTI ID: 1038105
• Report Number(s): BNL-96854-2012-CP; R&D Project: 10608; TRN: US1201796
• Resource Relation: Conference: 2012 ANS Annual Meeting: Nuclear Science adn Technology: Managing the Global Impact of Economic and Natural Events; Chicago, IL; 20120624 through 20120628
• Country of Publication: United States
• Language: English

Related Subjects

22 GENERAL STUDIES OF NUCLEAR REACTORS
42 ENGINEERING
72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS
ECONOMICS
KINETICS
LIFETIME
NBSR REACTOR
PROMPT NEUTRONS
RESEARCH REACTORS
URANIUM
neutron lifetime
adjoint flux
absorber method
NIST
HEU
LEU