Design and irradiation test of an innovative optical ionization chamber technology

Maxime Lamotte (1) , G. de Izarra (2) , C. Jammes (1)

1 CEA-DES (ex-DEN) - CEA-Direction des Energies (ex-Direction de l'Energie Nucléaire)
2 DER - Département Etude des Réacteurs

To provide future dependable neutron ux monitoring instrumentation for sodium-cooled fast reactors (SFR) of Generation-IV, French Alternative Energies and Atomic Energy Commission (CEA) is investigating the applicability of an innovative technology based on the optical signal produced within any type of ionization chambers such as ssion chambers for instance. A mock-up of that innovative neutron detector was tested on a cold-neutron beamline at the ORPHEE nuclear facility. Experimental results regarding recovery time and detection eciency showed promising possibilities for neutron instrumentation.

Keywords: ssion chambers; radiation-hard detectors; gaseous detectors; gas scintillation

Domains: Nuclear Experiment [nucl-ex]

Maxime Lamotte, G. de Izarra, C. Jammes. Design and irradiation test of an innovative optical ionization chamber technology. Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment, 2020, 968, pp.163945. ⟨10.1016/j.nima.2020.163945⟩. ⟨cea-02932155⟩