Title :
Design of a devoted γ spectroscopy device for axial and azimuthal activity measurements on JHR-type curved fuel plates
Author :
Gruel, A. ; Di Salvo, J. ; Roche, A. ; Blaise, P. ; Ledoux, J.-F. ; Morel, Carine ; Lecluze, A. ; Foucras, A. ; Vaglio-Gaudard, C. ; Colombier, A.-C.
Author_Institution :
CEA, DEN, St. Paul-lez-Durance, France
Abstract :
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-UO2 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.
Keywords :
fission reactor fuel; fission reactor instrumentation; fission research reactors; gamma-ray spectrometers; 1/2 hafnium configuration; AMMON experimental program; Cadarache EOLE zero power reactor; HORUS-3D neutron calculation scheme; HORUS-3D photon calculation scheme; JHR fuel elements; JHR-type curved fuel plates; Jules Horowitz material testing reactor; axial fission rate distribution; azimuthal activity measurements; beryllium periphery configuration; central hexagonal aluminium box; experimental core configurations; gamma-ray spectroscopy device; lattice global geometry; local fission rate measurements; reactor design; reference configuration; standard PWR-UO2 fuel pins; Aluminum; Assembly; Atmospheric measurements; Fuels; Hafnium; Spectroscopy; Uncertainty; AMMON; EOLE; JHR; curved fuel plates; fission rate distribution; gamma-ray spectrometry;
Conference_Titel :
Advancements in Nuclear Instrumentation Measurement Methods and their Applications (ANIMMA), 2013 3rd International Conference on
Conference_Location :
Marseille
Print_ISBN :
978-1-4799-1046-5
DOI :
10.1109/ANIMMA.2013.6727901
