Stability of MIR transmittance of silver and thallium halide optical fibres in ionizating β- and γ-radiation from nuclear reactors

Korsakova, E.A.; Lvov, Alexander; Salimgareev, Dmitrii; Корсаков, А. С.; Markham, Sarah; Mani, A. A.; Silien, Christophe; Syed, Tofail; Zhukova, Liya

doi:10.1016/j.infrared.2018.07.031

Cited by 17 publications

(7 citation statements)

References 19 publications

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“…In the future, we plan to use silver halide crystals doped with thallium (I) as a material for the fiber bundles, since these crystals possess the functional characteristics which allow expanding the scope of fiber bundles application [7,8]. In particular, they are resistant to ultraviolet [9] and ionizing radiation [10,11]. It is worth to mention, that they are resistant to γ rays at a dose of up to 500 kGy.…”

Section: Future Goalsmentioning

confidence: 99%

Infrared Fiber Bundles Based on Silver Halide Crystals for Monitoring and Control Systems in Heat and Power Engineering

Korsakova¹,

Muftahitdinova²,

Korsakov³

et al. 2019

dteees

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We develop and fabricate ordered fiber bundles based on silver halide crystals. They are thin, flexible, and non-hygroscopic. These bundles allow detecting temperatures in the interval of -130 -900 o C with good spatial resolution and can be embedded in monitoring and control systems. To show their suitability for infrared thermography in the heat and power engineering, the temperature distribution over the height of a gas turbine blade was measured using an IR thermographic system contained a linear silver halide fiber bundle.

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Section: Future Goalsmentioning

confidence: 99%

Infrared Fiber Bundles Based on Silver Halide Crystals for Monitoring and Control Systems in Heat and Power Engineering

Korsakova¹,

Muftahitdinova²,

Korsakov³

et al. 2019

dteees

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“…Материалы системы AgBr−AgI обладают высокой фотостойкостью [5], которая позволяет использовать эти материалы без специальных защитных фильтров. Высокая устойчивость к радиационному облучению позволяет использовать эти кристаллические материалы и ИК световоды из них в условиях повышенного ионизирующего излучения до значений дозы 500 kGy, что открывает широкие возможности для внедрения таких оптических материалов в атомно-энергетические [6,7] и космические технологии [8].…”

Section: Introductionunclassified

Исследование вольт-амперных характеристик оптических материалов системы AgBr-AgI

Тураби¹,

Акифьева²,

Корсаков³

et al. 2022

Оптика И Спектроскопия

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IR light guides based on crystals and ceramics of the AgBr-AgI system are transparent in the mid-infrared range from 2 to 25 μm, which is in demand for thermal imaging, laser technology and spectroscopy. High photo- and radiation resistance makes these materials particularly attractive. For the design of optical equipment, information is needed on the electrical properties of the material, which are most fully characterized by the current-voltage characteristic (VAC). In this work, the dependence of VAC of the studied materials in the range of compositions from 5 to 80 mol. % AgI in the system AgBr-AgI on the composition of the material and temperature in the range of 298-453 K. It has been established that an increase in the iodine content for crystalline materials of AgBr-AgI systems leads to a decrease in electrical conductivity. The values of specific conductivity under equal conditions (the same temperature and the same applied voltage) for ceramics of the AgBr-AgI system are two to three orders of magnitude higher than for crystals. The values of specific conductivity for ceramics are at the level of conductivity of solid electrolytes. At the temperature of the β-AgI – α-AgI phase transition in ceramics of the AgBr-AgI systems, a jump in conductivity is observed, which is explained by the β-AgI – α-AgI phase transition.

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“…These materials are transparent from visible to far IR, as well as in the terahertz (THz) range. Among other things, the materials have high ductility, which makes it possible to obtain windows and lenses from them by hot pressing, as well as by extrusion of fibers for the range of 2.0-25.0 μm [11,[27][28][29][30][34][35][36][37][38][39][40] .…”

Section: Introductionmentioning

confidence: 99%

“…It should also be noted that the AgBr-AgI-TlI-TlBr materials system has a number of significant advantages over the AgClbased system. It has increased material's photo and radiation stability [26,30,31,36] . Thus, as a result of replacing lighter elements with heavier ones, the material's stability to external negative environmental factors increases, which makes it possible to extend the life of optical products.…”

Section: Introductionmentioning

confidence: 99%

Highly transparent ceramics for the spectral range from 1.0 to 60.0 µm based on solid solutions of the system AgBr–AgI–TlI–TlBr

et al. 2021

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The article is devoted to the technology for obtaining optical ceramics of AgBr−TlI and AgBr−TlBr 0.46 I 0.54 systems and manufacturing samples with different compositions. The new heterophase crystal ceramics are transparent without absorption windows in the spectral range from 1.0 to 60.0 μm. In the ceramics' transparency spectra based on the AgBr−TlI and AgBr−TlBr 0.46 I 0.54 systems fusibility diagrams, with an increase in the thallium halides mass fraction, as well as the replacement of the bromine ion with iodine, the maximum transparency shifts to a long infrared region.

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Stability of MIR transmittance of silver and thallium halide optical fibres in ionizating β- and γ-radiation from nuclear reactors

Cited by 17 publications

References 19 publications

Infrared Fiber Bundles Based on Silver Halide Crystals for Monitoring and Control Systems in Heat and Power Engineering

Infrared Fiber Bundles Based on Silver Halide Crystals for Monitoring and Control Systems in Heat and Power Engineering

Исследование вольт-амперных характеристик оптических материалов системы AgBr-AgI

Highly transparent ceramics for the spectral range from 1.0 to 60.0 µm based on solid solutions of the system AgBr–AgI–TlI–TlBr

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