Service interruption on Monday 11 July from 12:30 to 13:00: all the sites of the CCSD (HAL, EpiSciences, SciencesConf, AureHAL) will be inaccessible (network hardware connection).
Skip to Main content Skip to Navigation
Journal articles

Vulnerability Analysis of Optical Fibers for Laser Megajoule Facility: Preliminary Studies

Abstract : The Laser Megajoule project is a major component of the French simulation program to study nuclear fusion by inertial confinement. The future Laser Megajoule facility requires control-command systems that will operate in a harsh radiative environment. Commercial off-the-shelf optical fiber data links are envisaged as a radiation tolerant solution for this application. In this paper, we present our preliminary study of their vulnerability. For this, we firstly have used an original method consisting of ultraviolet ( 5 eV) exposures of the fibers to identify the different germanosilicate optical fibers containing phosphorus, which leads them unacceptable for both steady state -rays and successive pulsed X-ray irradiations. We have demonstrated the validity of the -UV comparison by spectroscopic measurements. After this first selection, we have tested under pulsed X-rays (dose rate > 10 MGy/s dose 0 5 < kGy) the resistance of the P-free optical fibers at 1310 nm for the shortest times after an ionization pulse (10-9 to 10-1 s). Based on these results, we discuss the validity of the optical fiber data links for the control-command applications in LMJ facility.
Document type :
Journal articles
Complete list of metadata
Contributor : Youcef Ouerdane Connect in order to contact the contributor
Submitted on : Wednesday, March 18, 2009 - 6:32:20 PM
Last modification on : Saturday, June 25, 2022 - 10:50:03 AM


  • HAL Id : ujm-00369245, version 1



Sébastien Girard, J. Baggio, J. L. Leray, J.-P. Meunier, A. Boukenter, et al.. Vulnerability Analysis of Optical Fibers for Laser Megajoule Facility: Preliminary Studies. IEEE Transactions on Nuclear Science, Institute of Electrical and Electronics Engineers, 2005, 52 (5), pp.1497-1503. ⟨ujm-00369245⟩



Record views