TY - JOUR
T1 - Stability of MIR transmittance of silver and thallium halide optical fibres in ionizating β- and γ-radiation from nuclear reactors
AU - Korsakova, Elena
AU - Lvov, Alexandr
AU - Salimgareev, Dmitrii
AU - Korsakov, Alexandr
AU - Markham, Sarah
AU - Mani, Aladin
AU - Silien, Christophe
AU - Syed, Tofail A.M.
AU - Zhukova, Liya
N1 - Publisher Copyright:
© 2018 Elsevier B.V.
PY - 2018/9
Y1 - 2018/9
N2 - 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.
AB - 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.
KW - Doped silver halide
KW - Ionizing radiation resistance
KW - MIR fiber
UR - http://www.scopus.com/inward/record.url?scp=85050956477&partnerID=8YFLogxK
U2 - 10.1016/j.infrared.2018.07.031
DO - 10.1016/j.infrared.2018.07.031
M3 - Article
AN - SCOPUS:85050956477
SN - 1350-4495
VL - 93
SP - 171
EP - 177
JO - Infrared Physics and Technology
JF - Infrared Physics and Technology
ER -