Reactivity determination using the hybrid transport point kinetics and the area method

Paolo Picca, Roberto Furfaro

Research output: Contribution to journalArticlepeer-review

1 Scopus citations


This paper presents an application of the hybrid transport point kinetic (HTPK) technique to the reactivity determination in subcritical reactor configurations. The mathematical model of the HTPK, initially proposed by Picca et al. (2011) to simulate the time-dependent neutron transport, is here extended to incorporate delayed emissions. The classical area method (Sjӧstrand, 1956), developed to invert the point kinetic (PK) model, is then adapted to accommodate the peculiarities of the HTPK approach, to allow its analytical inversion. This novel inverse neutron kinetic methodology is tested on a three-region reactor configuration, showing the interesting performance of the approach based on the HTPK model as compared to the standard area method and highlighting its potential to overcome some of the limitations of the PK-based inversion.

Original languageEnglish (US)
Pages (from-to)191-197
Number of pages7
JournalAnnals of Nuclear Energy
StatePublished - Apr 2018


  • Accelerator-driven systems
  • Area method
  • Hybrid transport point kinetic
  • Inverse reactor kinetics
  • Subcritical systems

ASJC Scopus subject areas

  • Nuclear Energy and Engineering


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