HORUS3D/N neutronics calculation tool dedicated to JHR design and safety studies - development, validation, biases and uncertainties quantification

C. Vaglio-Gaudard (1) , F. Jeury (1) , C. d'Aletto (1) , J.-M.. Vidal (1) , L. Gaubert (1) , J. Politello (1)

1 CEA-DES (ex-DEN) - CEA-Direction des Energies (ex-Direction de l'Energie Nucléaire)

The international Jules Horowitz Material Testing Reactor (JHR) is under construction at CEA Cadarache research center, in southern France. Its first criticality is foreseen by the end of the decade.In order to perform JHR design and safety studies, a specific neutronics calculation tool, HORUS3D/N, based on deterministic codes and the European nuclear data library JEFF3.1.1, was developed. The purpose of this neutronics calculation tool is to predict JHR neutronics parameters reactivity, power distribution, control rod reactivity worth,...This paper describes the very latest developments implemented in the HORUS3D/N neutronics calculation tool. These new developments take into account the APOLLO2.8/REL2005/CEA2005 package recommendations already applied for light water reactor studies. This paper also provides a synthesis of the biases and uncertainties associated with the different neutronics parameters calculated with this new version of the HORUS3D/N calculation scheme for JHR safety studies.

Mots clés: neutronics calculation tool; HORUS3D; JHR; neutronics calculation tool

Domaines: Physique Nucléaire Expérimentale [nucl-ex]; Physique Nucléaire Théorique [nucl-th]

C. Vaglio-Gaudard, F. Jeury, C. d'Aletto, J.-M.. Vidal, L. Gaubert, et al.. HORUS3D/N neutronics calculation tool dedicated to JHR design and safety studies - development, validation, biases and uncertainties quantification. RRFM 2015, Apr 2015, Bucarest, Romania. ⟨cea-02428802v1⟩