We investigate the response of Ge-doped, P-doped, pure-silica, or Fluorine-doped fibers to extreme environments combining doses up to MGy(SiO ) level of 10 keV X-rays and temperatures between 25 C and 300 C. First, we evaluate their potential to serve either as parts of radiation tolerant optical or optoelectronic systems or at the opposite, for the most sensitive ones, as punctual or distributed dosimeters. Second, we improve our knowledge on combined ionizing radiations and temperature (R&T) effects on radiation-induced attenuation (RIA) by measuring the RIA spectra in the ultraviolet and visible domains varying the R&T conditions. Our results reveal the complex response of the tested fibers in such mixed environments. Increasing the temperature of irradiation increases or decreases the RIA values measured at 25 C or sometimes has no impact at all. Furthermore, R&T effects are time dependent giving an impact of the temperature on RIA that evolves with the time of irradiation. The two observed transient and stationary regimes of temperature influence will make it very difficult to evaluate sensor vulnerability or the efficiency of hardening approaches without extensive test campaigns.

Girard, S., Marcandella, C., Morana, A., Perisse, J., Di Francesca, D., Paillet, P., et al. (2013). Combined High Dose and Temperature Radiation Effects on Multimode Silica-based Optical Fibers. IEEE TRANSACTIONS ON NUCLEAR SCIENCE, 60, 4305-4313 [10.1109/TNS.2013.2281832].

Combined High Dose and Temperature Radiation Effects on Multimode Silica-based Optical Fibers

MORANA, Adriana;DI FRANCESCA, Diego;AGNELLO, Simonpietro;CANNAS, Marco;
2013

Abstract

We investigate the response of Ge-doped, P-doped, pure-silica, or Fluorine-doped fibers to extreme environments combining doses up to MGy(SiO ) level of 10 keV X-rays and temperatures between 25 C and 300 C. First, we evaluate their potential to serve either as parts of radiation tolerant optical or optoelectronic systems or at the opposite, for the most sensitive ones, as punctual or distributed dosimeters. Second, we improve our knowledge on combined ionizing radiations and temperature (R&T) effects on radiation-induced attenuation (RIA) by measuring the RIA spectra in the ultraviolet and visible domains varying the R&T conditions. Our results reveal the complex response of the tested fibers in such mixed environments. Increasing the temperature of irradiation increases or decreases the RIA values measured at 25 C or sometimes has no impact at all. Furthermore, R&T effects are time dependent giving an impact of the temperature on RIA that evolves with the time of irradiation. The two observed transient and stationary regimes of temperature influence will make it very difficult to evaluate sensor vulnerability or the efficiency of hardening approaches without extensive test campaigns.
Settore FIS/01 - Fisica Sperimentale
Girard, S., Marcandella, C., Morana, A., Perisse, J., Di Francesca, D., Paillet, P., et al. (2013). Combined High Dose and Temperature Radiation Effects on Multimode Silica-based Optical Fibers. IEEE TRANSACTIONS ON NUCLEAR SCIENCE, 60, 4305-4313 [10.1109/TNS.2013.2281832].
File in questo prodotto:
File Dimensione Formato  
IEEE13-60-4305-Girard.pdf

non disponibili

Descrizione: articolo pubblicato
Dimensione 1.23 MB
Formato Adobe PDF
1.23 MB Adobe PDF   Visualizza/Apri   Richiedi una copia

I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.

Utilizza questo identificativo per citare o creare un link a questo documento: http://hdl.handle.net/10447/96052
Citazioni
  • ???jsp.display-item.citation.pmc??? ND
  • Scopus 64
  • ???jsp.display-item.citation.isi??? 56
social impact