Synthesis of reflections and conclusions of the SFRP-IRPA workshop on the reasonableness in the practical implementation of the ALARA principleT. Schneider, J.-F. Lecomte, C. Schieber, S. Andresz, V. Chambrette, B. Le Guen and L. VaillantRadioprotection, 52 4 (2017) 259-263DOI: https://doi.org/10.1051/radiopro/2017031