Calculation of the Neutron Noise Induced by Periodic Deformations of a Large Sodium-Cooled Fast Reactor Core
Artikel i vetenskaplig tidskrift, 2014

The subject of this paper is the calculation of the neutron noise induced by small-amplitude stationary radial variations of the core size (core expansion/compaction, also called core flowering) of a large sodium-cooled fast reactor. The calculations were performed on a realistic model of the European Sodium Fast Reactor (ESFR) core with a thermal output of 3600 MW(thermal), using a multigroup neutron noise simulator. The multigroup cross sections and their fluctuations that represent the core geometry changes for the neutron noise calculations were generated by the code ERANOS. The space and energy dependences of the noise source represented by the core expansion/compaction and the induced neutron noise are calculated and discussed.

Författare

Florian Zylbersztejn

Chalmers, Teknisk fysik, Nukleär teknik

Hoai Nam Tran

Chalmers, Teknisk fysik, Nukleär teknik

Imre Pazsit

Chalmers, Teknisk fysik, Nukleär teknik

P. Filliatre

Le Commissariat à l’énergie atomique et aux énergies alternatives (CEA)

C. Jammes

Le Commissariat à l’énergie atomique et aux énergies alternatives (CEA)

Nuclear Science and Engineering

0029-5639 (ISSN)

Vol. 177 203-218

Ämneskategorier

Fysik

DOI

10.13182/NSE13-41