Accurate measurement of a fission chamber efficiency using the prompt fission neutron methodLudovic Mathieu, Mourad Aïche, Grégoire Kessedjian, Serge Czajkowski, Beatriz Jurado, Paola Marini and Igor TsekhanovichEPJ Web Conf., 146 (2017) 03016DOI: https://doi.org/10.1051/epjconf/201714603016