Radiation Effects Of Optical Silica Fiber And Radiation Hard Optical Transmission

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Radiation Effects of Optical Silica Fiber and Radiation Hard Optical Transmission

Author : Tetsuya Suematsu
Publisher :
ISBN 13 :
Total Pages : 7 pages
Book Rating : 4.:/5 (228 download)

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Book Synopsis Radiation Effects of Optical Silica Fiber and Radiation Hard Optical Transmission by : Tetsuya Suematsu

Download or read book Radiation Effects of Optical Silica Fiber and Radiation Hard Optical Transmission written by Tetsuya Suematsu and published by . This book was released on 1982 with total page 7 pages. Available in PDF, EPUB and Kindle. Book excerpt: Radiation test to silica fibers were conducted by typical 3 sources. They are silica fiber of graded-index Ge-P doped fiber (A fiber) known as usual communication fiber, step-index borosilicate cladded pure silica core fiber known as better radiation hard fiber (B fiber) and graded-index borosilicate fiber (C fiber). Now, graded-index borosilicate fiber is chosen for influence of boron dopant to radiation characteristics. These fibers were exposed to X-ray radiation, 1 gamma-ray radiation and neutron flux radiation. (Author).

Radiation Effects on Fiber Optics

Author : James A. Wall (Jr.)
Publisher :
ISBN 13 :
Total Pages : 60 pages
Book Rating : 4.3/5 (91 download)

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Book Synopsis Radiation Effects on Fiber Optics by : James A. Wall (Jr.)

Download or read book Radiation Effects on Fiber Optics written by James A. Wall (Jr.) and published by . This book was released on 1975 with total page 60 pages. Available in PDF, EPUB and Kindle. Book excerpt: Samples representative of most of the optical fibers presently available in lengths of 10 m or more were tested for their responses to energetic radiation. Glass fibers doped with three different levels of cesium were also prepared and tested. Permanent and transient x-radiation effects tests were performed. Neutron effects tests were performed. All of the fibers tested showed decreases in transmission when exposed to radiation. All of the fibers emitted fluorescent light pulses when exposed to intense x-ray pulses.

Radiation Hardened Silica-Based Optical Fibers

Author : W. J. Miniscalco
Publisher :
ISBN 13 :
Total Pages : 77 pages
Book Rating : 4.:/5 (227 download)

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Book Synopsis Radiation Hardened Silica-Based Optical Fibers by : W. J. Miniscalco

Download or read book Radiation Hardened Silica-Based Optical Fibers written by W. J. Miniscalco and published by . This book was released on 1988 with total page 77 pages. Available in PDF, EPUB and Kindle. Book excerpt: Since it is generally recognized that radiation-induced loss is due to pre-existing defects in optical fiber, the technical approaches were designed to reduce the number of these defects in as-drawn fiber and to passivate the ones that remain. While our investigations confirmed the Ge doping leads to greater sensitivity, both the experimental and theoretical results remain ambiguous as to whether fluorine is beneficial or deleterious. The diffusion of impurities from the preform substrate tube into the core has been identified as an important source of induced loss. Hydrogen treatment has been found to be an effective means of passivating defects in as-drawn fiber, and improved the hardness of most fibers tested. Optical fibers, Radiation effects, Glass structure. (jes).

The Effects of High Temperature and Nuclear Radiation on the Optical Transmission of Silica Optical Fibers

Author : David Phillip Hawn
Publisher :
ISBN 13 :
Total Pages : 179 pages
Book Rating : 4.:/5 (814 download)

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Book Synopsis The Effects of High Temperature and Nuclear Radiation on the Optical Transmission of Silica Optical Fibers by : David Phillip Hawn

Download or read book The Effects of High Temperature and Nuclear Radiation on the Optical Transmission of Silica Optical Fibers written by David Phillip Hawn and published by . This book was released on 2012 with total page 179 pages. Available in PDF, EPUB and Kindle. Book excerpt: The U.S. Department of Energy is interested in extending the distributed sensing capabilities of optical instrumentation to high temperature reactor radiation environments. For this technology extension to be possible, the survivability of silica optical fibers needed to be determined in this environment. In this work the optical attenuation added to silica optical fiber exposed simultaneously to reactor radiation and temperatures to 1000°C was experimentally determined. Optical transmission measurements were made in-situ from 400nm-2300nm. For easy visualization, all of the results generated in this work were processed into movies that are available publicly [1].

Radiation Effects on Transmission in Optical Fiber Systems

Author : William Hunter Hilarides
Publisher :
ISBN 13 :
Total Pages : 51 pages
Book Rating : 4.:/5 (227 download)

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Book Synopsis Radiation Effects on Transmission in Optical Fiber Systems by : William Hunter Hilarides

Download or read book Radiation Effects on Transmission in Optical Fiber Systems written by William Hunter Hilarides and published by . This book was released on 1981 with total page 51 pages. Available in PDF, EPUB and Kindle. Book excerpt: A study was done of the effects of 14.7 Mev neutrons on transmission in optical fibers. This study was done with monochromatic light in the spectral range from 700 to 1700 nanometers. Of the fibers studied, two were high purity silica fibers, and two were Germanium doped core silica fibers. An important result of the study was that the radiation induced damage was wavelength related. The induced damage decreased rapidly as the wavelength increased from 800 to 1100 nanometers, with minimal damage noted above 1300 nanometers. This trend was due primarily to the energy levels of traps formed as the bombarding neutrons broke bonds within the silica. Several other interesting trends were noted. First, the water content of the fiber affected the amount of induced damage. Second, the method by which the fiber was made affected the damage levels. Third, the dopant used affected the damage levels. These trends deserved further study, but because the data base was so small, more specific conclusions were not possible. (Author).

Radiation Hardened Silica-Based Optical Fibers

Author : W. J. Miniscalco
Publisher :
ISBN 13 :
Total Pages : 51 pages
Book Rating : 4.:/5 (227 download)

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Book Synopsis Radiation Hardened Silica-Based Optical Fibers by : W. J. Miniscalco

Download or read book Radiation Hardened Silica-Based Optical Fibers written by W. J. Miniscalco and published by . This book was released on 1986 with total page 51 pages. Available in PDF, EPUB and Kindle. Book excerpt: For the defect passivation approach, we have completed the evaluation of the effects of hydrogen treatment. Considerable reduction in radiation-induced absorption at long wavelengths (lamba>1 micron) has been observed for hydrogen-treated fibers. Posttreatment of irradiated fibers by hydrogen also increases the hardness of the fibers under subsequent irradiation. In addition, we found photolumunescence to be an effective characterization tool which provides additional evidence for the passivating effect of hydrogen treatment. Keywords include: Optical fibers, Radiation effects, and Glass structure.

Radiation Effects on Fiber Optics and Opto Electronics

Author : IGIC, Inc. Staff
Publisher : Information Gatekeepers Inc
ISBN 13 : 9781568510750
Total Pages : 408 pages
Book Rating : 4.5/5 (17 download)

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Book Synopsis Radiation Effects on Fiber Optics and Opto Electronics by : IGIC, Inc. Staff

Download or read book Radiation Effects on Fiber Optics and Opto Electronics written by IGIC, Inc. Staff and published by Information Gatekeepers Inc. This book was released on 1994 with total page 408 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Radiation Effects in Fiber Optic Waveguides

Author : G. H Sigel (Jr)
Publisher :
ISBN 13 :
Total Pages : 93 pages
Book Rating : 4.:/5 (227 download)

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Book Synopsis Radiation Effects in Fiber Optic Waveguides by : G. H Sigel (Jr)

Download or read book Radiation Effects in Fiber Optic Waveguides written by G. H Sigel (Jr) and published by . This book was released on 1973 with total page 93 pages. Available in PDF, EPUB and Kindle. Book excerpt: A comprehensive review is presented on the effects of ionizing radiation on the performance of fiber optic cables, and on the materials used for fabrication of optical fibers. This includes a summary of the permanent and transient radiation-induced losses in optical transmission of state of the art fibers, a detailed discussion of the mechanisms responsible for the losses observed, and a report on inhouse materials development to achieve radiation hardened fiber optic glasses.

Radiation Effect on Optical Properties of Bi-Related Materials Co-Doped Silica Optical Fibers

Author : Jianxiang Wen
Publisher :
ISBN 13 :
Total Pages : 0 pages
Book Rating : 4.:/5 (139 download)

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Book Synopsis Radiation Effect on Optical Properties of Bi-Related Materials Co-Doped Silica Optical Fibers by : Jianxiang Wen

Download or read book Radiation Effect on Optical Properties of Bi-Related Materials Co-Doped Silica Optical Fibers written by Jianxiang Wen and published by . This book was released on 2019 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: Three kinds of Bi-related materials co-doped silica optical fibers (BRDFs), including Bi/Al, Bi/Pb, and Bi/Er co-doped fibers, were fabricated using atomic layer deposition (ALD) and modified chemical vapor deposition (MCVD). Then, the effect of irradiation on the optical properties of BRDFs was investigated. The experimental results showed that the fluorescence intensity, the fluorescence lifetime of BRDFs at the 1150¬†nm band, increased significantly with low-dose treatment, whereas it decreased with a further increase in the radiation dose. In addition, the merit MŒ± values of the BRDFs, a ratio of useful pump absorption to total pump absorption, decreased with an increase of the radiation doses. The Verdet constants of different doped fibers increased up to saturation level with increases in the radiation dose. However, for a Bi-doped fiber, its Verdet constant decreased and the direction of Faraday,Äôs rotation changed under low-dose radiation treatment. In addition, the Verdet constant increase of the Bi-doped silica fiber was much faster than that of other single mode fiber (SMF) and Pb-doped silica fibers treated with high-dose radiation. All of these findings are of great significance for the study of the optical properties of BRDFs.

Defects in SiO2 and Related Dielectrics: Science and Technology

Author : Gianfranco Pacchioni
Publisher : Springer Science & Business Media
ISBN 13 : 9780792366850
Total Pages : 636 pages
Book Rating : 4.3/5 (668 download)

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Book Synopsis Defects in SiO2 and Related Dielectrics: Science and Technology by : Gianfranco Pacchioni

Download or read book Defects in SiO2 and Related Dielectrics: Science and Technology written by Gianfranco Pacchioni and published by Springer Science & Business Media. This book was released on 2000-12-31 with total page 636 pages. Available in PDF, EPUB and Kindle. Book excerpt: Proceedings of the NATO Advanced Study Institute, Erice, Italy, April 8-20, 2000

Optical Fibre Sensing and Systems in Nuclear Environments

Author : Francis Berghmans
Publisher : SPIE-International Society for Optical Engineering
ISBN 13 :
Total Pages : 182 pages
Book Rating : 4.3/5 (91 download)

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Book Synopsis Optical Fibre Sensing and Systems in Nuclear Environments by : Francis Berghmans

Download or read book Optical Fibre Sensing and Systems in Nuclear Environments written by Francis Berghmans and published by SPIE-International Society for Optical Engineering. This book was released on 1994 with total page 182 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Radiation Effects in Materials

Author : Waldemar Alfredo Monteiro
Publisher : BoD – Books on Demand
ISBN 13 : 953512417X
Total Pages : 464 pages
Book Rating : 4.5/5 (351 download)

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Book Synopsis Radiation Effects in Materials by : Waldemar Alfredo Monteiro

Download or read book Radiation Effects in Materials written by Waldemar Alfredo Monteiro and published by BoD – Books on Demand. This book was released on 2016-07-20 with total page 464 pages. Available in PDF, EPUB and Kindle. Book excerpt: The study of radiation effects has developed as a major field of materials science from the beginning, approximately 70 years ago. Its rapid development has been driven by two strong influences. The properties of the crystal defects and the materials containing them may then be studied. The types of radiation that can alter structural materials consist of neutrons, ions, electrons, gamma rays or other electromagnetic waves with different wavelengths. All of these forms of radiation have the capability to displace atoms/molecules from their lattice sites, which is the fundamental process that drives the changes in all materials. The effect of irradiation on materials is fixed in the initial event in which an energetic projectile strikes a target. The book is distributed in four sections: Ionic Materials; Biomaterials; Polymeric Materials and Metallic Materials.

Fiber Optics in Adverse Environments III

Author :
Publisher :
ISBN 13 :
Total Pages : 148 pages
Book Rating : 4.3/5 (91 download)

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Book Synopsis Fiber Optics in Adverse Environments III by :

Download or read book Fiber Optics in Adverse Environments III written by and published by . This book was released on 1987 with total page 148 pages. Available in PDF, EPUB and Kindle. Book excerpt:

MC-6 Fiber Optics in Adverse Environments

Author :
Publisher : Information Gatekeepers Inc
ISBN 13 :
Total Pages : 181 pages
Book Rating : 4./5 ( download)

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Book Synopsis MC-6 Fiber Optics in Adverse Environments by :

Download or read book MC-6 Fiber Optics in Adverse Environments written by and published by Information Gatekeepers Inc. This book was released on with total page 181 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Proceedings of the Fiber Optics in the Nuclear Environment Symposium 25-27 March 1980. Volume II. Radiation Physics

Author : R. C. Webb
Publisher :
ISBN 13 :
Total Pages : 236 pages
Book Rating : 4.:/5 (227 download)

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Book Synopsis Proceedings of the Fiber Optics in the Nuclear Environment Symposium 25-27 March 1980. Volume II. Radiation Physics by : R. C. Webb

Download or read book Proceedings of the Fiber Optics in the Nuclear Environment Symposium 25-27 March 1980. Volume II. Radiation Physics written by R. C. Webb and published by . This book was released on 1980 with total page 236 pages. Available in PDF, EPUB and Kindle. Book excerpt: Contents: Radiation-Induced Defect Centers in Fiber Optic Glasses; The Role of the Multidopants Sb/P in Radiation Hardening of Optical Fibers; Radiation Damage of Optical Fiber Waveguides at Long Wavelengths; Temperature Dependence of Radiation Darkening in Optical Waveguides; Radiation Performance of Germanium Phosphosilicate Optical Fibers as a function of Temperature; Fast Recovery in Optical Fibers Exposed to Pulsed Radiation; Short-Term Radiation Effects in Optical Fibers; Radiation Response Measurement of Fibers in the Picosecond Region; Photobleaching Effects in Optical Fiber Waveguides; Electron-Beam Induced Absorption and Hardening in Fiber-Optic Waveguides to 1060-NM Laser Pulses; Characterization of Low-Loss Multimode Optical Fibers for Nuclear Diagnostics; Radiation Degradation and Recovery in Long Fiber-Optics Data Links; Neutron Damage Effects in Ga sub 1-x Al sub x As LEDs; Temperature Dependence of Neutron Damage to Commercial GaAsP LED Devices; Transient Effects of Ionizing Radiation in Si, InGaAsP, GaAlSb, and Ge Photodiodes; and A Radiation-Hardening Scheme for an Analog Fiber-Optic Data Link.

Fiber Optics in Adverse Environments II

Author : Roger A. Greenwell
Publisher :
ISBN 13 :
Total Pages : 254 pages
Book Rating : 4.3/5 (91 download)

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Book Synopsis Fiber Optics in Adverse Environments II by : Roger A. Greenwell

Download or read book Fiber Optics in Adverse Environments II written by Roger A. Greenwell and published by . This book was released on 1984 with total page 254 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Radiation Hardened Fiber Optics for Fusion Reactor Diagnostic Systems. Final Technical Report

Author :
Publisher :
ISBN 13 :
Total Pages : 3 pages
Book Rating : 4.:/5 (894 download)

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Book Synopsis Radiation Hardened Fiber Optics for Fusion Reactor Diagnostic Systems. Final Technical Report by :

Download or read book Radiation Hardened Fiber Optics for Fusion Reactor Diagnostic Systems. Final Technical Report written by and published by . This book was released on 1998 with total page 3 pages. Available in PDF, EPUB and Kindle. Book excerpt: This final report comprises a brief synopsis of the following original papers published in refereed journals. For further details, these papers themselves should be consulted. (1) ''Fast-neutron radiation effects in a silica-core optical fiber studied by a CCD-camera spectrometer, '' D.L. Griscom, M.E. Gingerich, E.J. Friebele, M. Putnam, and W. Unruh, Appl. Optics 33, 1022-1028 (1994). (2) ''Radiation hardening of pure-silica-core optical fibers by ultra-high-dose [gamma]-ray pre-irradiation, '' D.L. Griscom, J. Appl. Phys. 77, 5008-5013 (1995). (3) ''[gamma]-radiation resistance of aluminum-coated all-silica optical fibers fabricated using different types of silica in the core, '' D.L. Griscom, K.M. Goland, A.L. Tomashuk, D.V.; Pavlov, and Yu. A. Tarabrin, Appl. Phys. Lett. 69, 322-324 (1996). (4) ''[gamma] and fission-reactor radiation effects on the visible-range transparency of aluminum-jacketed, all-silica optical fibers, '' D.L. Griscom, J. Appl. Phys. 80, 2142-2155 (1996). (5) ''Visible/infra-red absorption study in fiber geometry of metastable defect states in high-purity fused silicas, '' D.L. Griscom, Proc. 13th Int'l Conf. on Defects in Insulating Materials, Wake Forest University, Winston-Salem, NC, July 1996. (6) ''Influence of the cladding thickness on the evolution of the NBOHC band in optical fibers exposed to gamma radiations, '' O. Deparis, D.L. Griscom, P. Megret, M. Decreton, and M. Blondel, J. Non-Cryst. Solids 216, 124-128 (1997).