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Fast-Neutron Radiation Effects in A Silica-Core Optical-Fiber Studied By A Ccd-Camera Spectrometer

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dc.contributorVirginia Techen
dc.contributor.authorGriscom, D. L.en
dc.contributor.authorGingerich, M. E.en
dc.contributor.authorFriebele, E. Josephen
dc.contributor.authorPutnam, M.en
dc.contributor.authorUnruh, W.en
dc.contributor.departmentElectrical and Computer Engineeringen
dc.date.accessed2014-02-24en
dc.date.accessioned2014-04-04T15:12:17Zen
dc.date.available2014-04-04T15:12:17Zen
dc.date.issued1994-05-01en
dc.description.abstractA simple CCD-camera spectrometer was deployed at the Los Alamos Spallation Radiation Effects Facility to characterize fast-neutron irradiation effects in several silica-based optical fibers over the wavelength range approximately 450-1100 nm. The experimental arrangement allowed optical loss spectra to be developed from remotely recovered frame grabs at various times during irradiation without it being necessary to resort to cutback methods. Data recorded for a pure-silica-core/F-doped-silica-clad fiber displayed a peculiar artifact, which is described and mathematically modeled in terms of leaky modes propagating in an optical cladding that is substantially less susceptible to radiation-induced optical attenuation than is the core. Evidence from optical time-domain reflectometry supports the postulate that mode leakage into the cladding may be a result of light scattering from the tracks of ions displaced by the 14-MeV neutrons. These results suggest that fibers with fluorine doping in the core, as well as in the cladding, would be relatively resistant to radiation-induced attenuation in the UV-visible spectral region.en
dc.description.sponsorshipU.S. Department of Energy Office of Energy Researchen
dc.format.mimetypeapplication/pdfen
dc.identifier.citationD. L. Griscom, M. E. Gingerich, E. J. Friebele, M. Putnam, and W. Unruh, "Fast-neutron radiation effects in a silica-core optical fiber studied by a CCD-camera spectrometer," Appl. Opt. 33, 1022-1028 (1994). doi: 10.1364/AO.33.001022en
dc.identifier.doihttps://doi.org/10.1364/AO.33.001022en
dc.identifier.issn0003-6935en
dc.identifier.urihttp://hdl.handle.net/10919/46901en
dc.identifier.urlhttp://www.opticsinfobase.org/ao/abstract.cfm?URI=ao-33-6-1022en
dc.language.isoenen
dc.publisherOptical Society of Americaen
dc.rightsIn Copyrighten
dc.rights.urihttp://rightsstatements.org/vocab/InC/1.0/en
dc.subjectFiber opticsen
dc.subjectRadiation effectsen
dc.subjectFast-neutron damageen
dc.subjectCcd-cameraen
dc.subjectSpectrophotometeren
dc.subjectWaveguidesen
dc.subjectAbsorptionen
dc.subjectGlassen
dc.subjectCentersen
dc.titleFast-Neutron Radiation Effects in A Silica-Core Optical-Fiber Studied By A Ccd-Camera Spectrometeren
dc.title.serialApplied Opticsen
dc.typeArticle - Refereeden
dc.type.dcmitypeTexten

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