کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
8145540 1524093 2018 17 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Stability of MIR transmittance of silver and thallium halide optical fibres in ionizating β- and γ-radiation from nuclear reactors
موضوعات مرتبط
مهندسی و علوم پایه فیزیک و نجوم فیزیک اتمی و مولکولی و اپتیک
پیش نمایش صفحه اول مقاله
Stability of MIR transmittance of silver and thallium halide optical fibres in ionizating β- and γ-radiation from nuclear reactors
چکیده انگلیسی
In this paper we investigated spectral transmission of irradiated IR fibres derived from single crystals of AgCl-AgBr and AgBr-TlI solid solutions. The fibres were exposed to β- and γ-radiation. The highest absorbed dose was 500 kGy. It was found that even modest radiation doses cause a reduction in transmission in AgCl-AgBr fibres within the entire working wavelength range, while for AgBr-TlI fibres the irradiation causes an increase in transmission when compared to corresponding values of non-irradiated fibres at wavelengths of 4-6 µm. We proposed a mechanism of this radiation-induced translucence and we expect that this phenomenon may be used for improvement of optical fibres. Additionally, we investigated how the transmission of AgCl-AgBr irradiated fibres depends on time after irradiation. Summarizing, both kinds of the fibres are suitable for applications in high radiation environments, for example, as a probe in on-line remote IR spectroscopy.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Infrared Physics & Technology - Volume 93, September 2018, Pages 171-177
نویسندگان
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