Evaluation of the AP1000 delayed neutron parameters using MCNP6

Autor:	Surian Pinem, Tms Tagor Malem Sembiring, Jati Susilo
Rok vydání:	2018
Předmět:	Physics History Prompt neutron Nuclear engineering Maximum difference Life time Nuclear data Sensitivity (control systems) Transient (oscillation) Delayed neutron Computer Science Applications Education
Zdroj:	Journal of Physics: Conference Series. 962:012030
ISSN:	1742-6596 1742-6588
DOI:	10.1088/1742-6596/962/1/012030
Popis:	The MCNP6 code contains numerous features, one of those is to determine the delayed neutron parameters. The accuracy of calculated delayed neutron parameters affect the accuracy of transient or dynamic condition. The objective of this paper is to determine the delayed neutron parameters of the advance PWR reactor, AP1000, using MCNP6 code with the recent ENDF/B evaluated nuclear data file ENDF/B-VII.1. The MCNP6 calculation results shows that the maximum difference occurred in the βi and λi parameters are 38.30% and 45.63%, respectively. The superiority of MCNP6 can be seen in the change of prompt neutron life time (l) parameters that cannot be obtained by the deterministic code, so it can be used in the sensitivity analysis of the delayed neutron parameters. Based on this research work, the accident analysis of the AP1000 reactor use the effective delayed neutron fraction (β eff) of0.0051 and the prompt neutron life time (l) of 19.5 μs for the first cycle.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::599550ce4669c213dd2abf0bb2240dff https://doi.org/10.1088/1742-6596/962/1/012030 Zobrazit plný text záznamu