Delayed neutron yields and spectra from photofission of actinides: data and calculations with Bremsstrahlung photons below 20 MeV D. Doré, J.-C. David, V. Macary, J.-M. Laborie, X. Ledoux, D. Ridikas and A. Vanlauwe Published online: 17 June 2008 DOI: 10.1051/ndata:07482