The GUINEVERE project was launched in 2006, within the 6th Euratom Framework Program IP-EUROTRANS, in order to study the feasibility of transmutation in Accelerator Driven subcritical Systems (ADS). | Monte Carlo MSM correction factors for control rod worth estimates in subcritical and near-critical fast neutron reactors EPJ Nuclear Sci. Technol. 1 2 2015 Nuclear Sciences . Lecouey et al. published by EDP Sciences 2015 amp Technologies DOI epjn e2015-50041-5 Available online at http REGULAR ARTICLE Monte Carlo MSM correction factors for control rod worth estimates in subcritical and near-critical fast neutron reactors Jean-Luc Lecouey1 Anatoly Kochetkov2 Antonin Krása2 Peter Baeten2 Vicente Bécares3 Annick Billebaud4 Sébastien Chabod4 Thibault Chevret1 Xavier Doligez5 François-René Lecolley1 Grégory Lehaut1 Nathalie Marie1 Frédéric Mellier6 Wim Uyttenhove2 David Villamarin3 Guido Vittiglio2 and Jan Wagemans2 1 Laboratoire de Physique Corpusculaire de Caen ENSICAEN Université de Caen CNRS-IN2P3 14050 Caen France 2 SCK CEN Belgian Nuclear Research Centre Boeretang 200 2400 Mol Belgium 3 Nuclear Fission Division CIEMAT Madrid Spain 4 Laboratoire de Physique Subatomique et de Cosmologie Université Grenoble-Alpes CNRS IN2P3 53 rue des Martyrs 38026 Grenoble Cedex France 5 Institut de Physique Nucléaire d Orsay CNRS-IN2P3 Université Paris Sud Orsay France 6 Commissariat à l Énergie Atomique et aux Énergies Alternatives DEN DER SPEX 13108 Saint-Paul-lez-Durance France Received 10 June 2015 Received in final form 20 July 2015 Accepted 10 August 2015 Published online 27 November 2015 Abstract. The GUINEVERE project was launched in 2006 within the 6th Euratom Framework Program IP- EUROTRANS in order to study the feasibility of transmutation in Accelerator Driven subcritical Systems ADS . This zero-power facility hosted at the SCK CEN site in Mol Belgium couples the fast subcritical lead reactor VENUS-F with an external neutron source provided by interaction of deuterons delivered by the GENEPI-3C accelerator and a tritiated target located at the reactor core center. In order to test on-line subcriticality monitoring techniques the reactivity of