Radiation Resistance of Single-Mode Optical Fibers at λ = 1.55 <i>μ</i>m Under Irradiation at IVG.1M Nuclear Reactor

Kashaykin, P. F.; Томашук, А.Л.; Vasiliev, S.A.; Britskiy, V; Ignatyev, A. D.; Ponkratov, Yu.V.; Kulsartov, T.; Samarkhanov, Kuanysh; Gnyrya, Vyacheslav; Zarenbin, A. V.; Semjonov, S. L.

doi:10.1109/tns.2020.3019404

Cited by 13 publications

(6 citation statements)

References 29 publications

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“…The spectra (Figure 3b) show that this is due to the fact that the LWL RIA begins to prevail over the SWL RIA. Similar RIA kinetics are also observed during reactor irradiation of OF [3,4], which suggests similar mechanisms for the appearance of LWL RIA during both gamma-and mixed gammaneutron irradiation.…”

Section: Resultssupporting

confidence: 66%

“…However, there is a small relaxation in the LWL region as well (Figure 2). Indeed, it was shown in [3] that increasing the temperature during reactor irradiation from 200 to 350 °C results in a 15-30% decrease in RIA at the 1550 nm wavelength. Therefore, increasing the temperature can be used to reduce the LWL RIA.…”

Section: Resultsmentioning

confidence: 99%

“…Optical fibers (OF) have currently found wide application in various fields of science and technology from high-speed information transmission to fiber lasers and precision sensors of various physical quantities. Nevertheless, the use of OFs in nuclear and fusion installations, including the international experimental fusion reactor ITER, leads to degradation of their optical properties due to the appearance of additional radiation-induced attenuation (RIA) of light [1][2][3][4]. This phenomenon considerably limits the use of OF in conditions of increased radiation levels and, therefore, there is an urgent need to reduce RIA to an acceptable level for a particular application.…”

Section: Introductionmentioning

confidence: 99%

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Gamma-Radiation-Induced Attenuation of Light in Pure-Silica Core Optical Fiber in Long-Wavelength Region

Kashaykin

Поспелова

Kenzhina

et al. 2022

ijmph

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The dependences of the spectra of radiation-induced attenuation (RIA) of light in a puresilica core (PSC) optical fiber (OF) during and after gamma-irradiation up to 590 kGy at a dose rate of 7.6 Gy/s in the near infrared range have been investigated. It was shown that starting with an absorbed dose of ~100 kGy, the RIA at 1550 nm becomes larger than at 1310 nm due to an increase in long-wavelength (LWL) RIA. The absorption band, with a maximum at a wavelength near 1800 nm, responsible for the LWL RIA is fully defined for the first time. At an absorbed dose of 590 kGy at wavelengths of 1310 and 1550 nm, the RIA is 14.1 and 23.3 dB/km, respectively. During 3.5 years of annealing of the OF at room temperature the RIA in the entire spectral range of 1100-1700 nm decreases by 40-50%. The LWL RIA can be complex, consisting of short-lived and long-lived components. The short-lived component may be LTIRA (low temperature infra-red absorption).

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Section: Resultssupporting

confidence: 66%

Section: Resultsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Gamma-Radiation-Induced Attenuation of Light in Pure-Silica Core Optical Fiber in Long-Wavelength Region

Kashaykin

Поспелова

Kenzhina

et al. 2022

ijmph

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“…At the next stage of the work, a reactor experiment was carried out with lithium CPS based on carbon fabric reinforced with CNTs. The experiment was carried out on the LIANA test bench [24,25,26,27,28] ISFNST 2021 Journal of Physics: Conference Series 2155 (2022) 012022 located at the IVG.1M reactor [29,30,31,32] hall. For the experiment, a previously developed irradiation device was used to study the materials of fusion reactors.…”

Section: Experiments On the Interaction Of Lithium Cps Based On Carbon Fabric Reinforced With Cnts With Hydrogen Isotopes Under Conditionmentioning

confidence: 99%

Tests of lithium CPS on basis of carboxylic fabric, reinforced with carbon nanotubes under high thermal and radiation loads

Tulubayev

Ponkratov

Baklanov

et al. 2022

J. Phys.: Conf. Ser.

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This work is devoted to testing a lithium CPS based on carbon fabric reinforced with carbon nanotubes under conditions of thermal and radiation loads. The paper considers and analyzes: the properties of carbon nanotubes and methods of their synthesis, the nature of the interaction of carbon materials with liquid lithium at different temperatures. A description of all the main stages in the manufacture of lithium CPS based on carbon fabric reinforced with carbon nanotubes is given. Microstructural studies of a manufactured lithium CPS sample based on carbon fabric reinforced with carbon nanotubes are presented. Studies have shown that a carbon fabric with a fiber surface reinforced with carbon nanotubes is completely wetted by liquid lithium. The developed technology is fully suitable for the manufacture of lithium CPS samples for further research. The results of experiments on the interaction of lithium CPS based on graphite fabric reinforced with carbon nanotubes with hydrogen isotopes under thermal and radiation loads are presented.

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“…[ 1–4 ] Most of the past efforts focused on the identification of the most tolerant fiber compositions against the observed fiber darkening (radiation‐induced attenuation [RIA]) to build radiation tolerant or radiation‐hardened data links or sensors. [ 5–7 ] However, today, it is well known that some of the fiber compositions render the glass very sensitive to radiations, allowing its use as a radiation detector [ 8,9 ] or even as a dosimeter when this high sensitivity is combined with no RIA dependence on the other irradiation parameters: dose rate and temperature. The most studied radiation sensitive optical fibers are the ones co‐doped with phosphorus that present very interesting features for dosimetry applications.…”

Section: Introductionmentioning

confidence: 99%

Near‐IR Radiation‐Induced Attenuation of Aluminosilicate Optical Fibers

Alessi

Guttilla

Agnello

et al. 2021

Physica Status Solidi (a)

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The X‐ray radiation‐induced attenuation (RIA) growth kinetics are studied online in different single‐mode aluminosilicate optical fibers in the near‐IR (NIR) domain to evaluate their potential in terms of dosimetry. The optical fibers differ by Al contents, core sizes, drawing parameters, and also by a preform deposition process. The data show no dependence of the RIA on all these parameters, a positive result for the design of point or distributed radiation detectors exploiting RIA to monitor the dose. The RIA growth rate is unchanged for dose rates changing from 0.073 to 6.25 Gy(SiO2) s−1, and the RIA linearly increases with the dose up to 2 kGy(SiO2). Small but noticeable RIA changes are observed when the irradiation temperature increases up to 50 °C during successive irradiation runs. Such results, and the post‐irradiation RIA recovery, have to be considered for the application, as they can affect the dose measurement accuracy. Finally, the spectral analysis shows no dependence of the spectral shape on the fiber and irradiation parameters. As a consequence, the data reported at 1310 and 1550 nm give information not only for the RIA kinetics at telecommunications and sensor wavelengths but also for the whole NIR range often used fiber‐based technologies.

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Radiation Resistance of Single-Mode Optical Fibers at λ = 1.55 μm Under Irradiation at IVG.1M Nuclear Reactor

Cited by 13 publications

References 29 publications

Gamma-Radiation-Induced Attenuation of Light in Pure-Silica Core Optical Fiber in Long-Wavelength Region

Gamma-Radiation-Induced Attenuation of Light in Pure-Silica Core Optical Fiber in Long-Wavelength Region

Tests of lithium CPS on basis of carboxylic fabric, reinforced with carbon nanotubes under high thermal and radiation loads

Near‐IR Radiation‐Induced Attenuation of Aluminosilicate Optical Fibers

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