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ABSTRACT: The MUSE-4 experiment, dedicated to the Accelerator Driven System (ADS) development studies, was achieved in the MASURCA nuclear reactor facility from 2000 to 2004. An external neutron source was introduced in a lead buffer zone located at the centre of the reactor core in order to simulate the spallation source. This paper deals with the GENEPI accelerator operation feedback at the MASURCA reactor facility during the MUSE-4 experimental campaign. After a presentation of the MASURCA mock-up facility and of the experimental programme objectives, the different phases of the accelerator design and realization are detailed. Its installation in the MASURCA nuclear facility, achieved in June 2000, is described concerning the technical and administrative topics. Then, the accelerator operation feedback is given concerning maintenance, tritium target management, source monitoring, technical evolutions, etc. The accelerator partial dismantling, achieved in the first part of 2005, is also presented. In addition, the GENEPI contribution to the MUSE-4 programme is presented in terms of experimental results and experimental measurement method improvements. Also, GENEPI 2, an evolution of the GENEPI concept, is described. This accelerator, is coupled to the PEREN facility which is dedicated to the nuclear cross-section measurements. Last, this paper makes a synthesis of the GENEPI operation feedback at the MASURCA facility and proposes recommendations for future projects involving accelerators used in nuclear reactor environment.
Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment. 01/2006;