Design of a devoted γ spectroscopy device for axial and azimuthal activity measurements on JHR-type curved fuel plates

• Published in: 2013 3rd International Conference on Advancements in Nuclear Instrumentation, Measurement Methods and their Applications (ANIMMA) pp. 1 - 6
• Main Authors: Gruel, A., Di Salvo, J., Roche, A., Blaise, P., Ledoux, J-F, Morel, C., Lecluze, A., Foucras, A., Vaglio-Gaudard, C., Colombier, A-C
• Format: Conference Proceeding
• Language: English
• Published: IEEE 01-06-2013
• Subjects: Aluminum; AMMON; Assembly; Atmospheric measurements; curved fuel plates; EOLE; fission rate distribution; Fuels; gamma-ray spectrometry; Hafnium; JHR; Spectroscopy; Uncertainty
• DOI: 10.1109/ANIMMA.2013.6727901

The AMMON experimental program in the Cadarache EOLE zero power reactor is devoted to the experimental validation of the HORUS-3D neutron and photon calculation scheme for the future Jules Horowitz Material Testing Reactor. Several experimental core configurations have been investigated, based on the same lattice global geometry: a central hexagonal aluminium box, with 7 JHR fuel elements, surrounded by a driver zone composed of standard PWR-UO 2 fuel pins. For experimental purposes, one assembly can be fully disassembled to enable precise measurements of local fission rates in the plates. Within this frame, a dedicated γ-spectrometry device has been designed to precisely measure axial and azimuthal fission rate distributions on these special fuel elements.