Analysis of JSI TRIGA MARK II reactor physical parameters calculated with TRIPOLI and MCNP

R Henry; I Tiselj; L Snoj

doi:10.1016/j.apradiso.2014.12.017

Analysis of JSI TRIGA MARK II reactor physical parameters calculated with TRIPOLI and MCNP

Appl Radiat Isot. 2015 Mar:97:140-148. doi: 10.1016/j.apradiso.2014.12.017. Epub 2014 Dec 27.

Authors

R Henry¹, I Tiselj², L Snoj³

Affiliations

¹ Jožef Stefan Institute, Reactor Engineering Division R4, Jamova 39, SI-1000 Ljubljana, Slovenia. Electronic address: romain.henry@ijs.si.
² Jožef Stefan Institute, Reactor Engineering Division R4, Jamova 39, SI-1000 Ljubljana, Slovenia.
³ Jožef Stefan Institute, Reactor Physics Division F8, Jamova 39, SI-1000 Ljubljana, Slovenia.

PMID: 25576735
DOI: 10.1016/j.apradiso.2014.12.017

Abstract

New computational model of the JSI TRIGA Mark II research reactor was built for TRIPOLI computer code and compared with existing MCNP code model. The same modelling assumptions were used in order to check the differences of the mathematical models of both Monte Carlo codes. Differences between the TRIPOLI and MCNP predictions of keff were up to 100pcm. Further validation was performed with analyses of the normalized reaction rates and computations of kinetic parameters for various core configurations.

Keywords: Kinetic parameters; MCNP; Monte Carlo calculations; Reaction rate profiles; TRIGA reactor; TRIPOLI.