Monitoring of Ultra-High Dose Rate Pulsed X-ray Facilities with Radioluminescent Nitrogen-Doped Optical Fiber oleh Jeoffray Vidalot, Cosimo Campanella, Julien Dachicourt, Claude Marcandella, Olivier Duhamel, Adriana Morana, David Poujols, Gilles Assaillit, Marc Gaillardin, Aziz Boukenter, Youcef Ouerdane, Sylvain Girard, Philippe Paillet