The effect of gamma-ray irradiation on bulk optical plastic materials
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The effect of gamma-ray irradiation on bulk optical plastic materials Va´clav Prajzler1,*
, Va´clav Chlupaty´1, and Zuzana Sˇarsˇounova´2
1
Faculty of Electrical Engineering, Department of Microelectronics, Czech Technical University in Prague, Technická 2, 166 27 Prague, Czech Republic 2 Faculty of Electrical Engineering, Department of Electrotechnology, Czech Technical University in Prague, Technická 2, 166 27 Prague, Czech Republic
Received: 27 June 2020
ABSTRACT
Accepted: 27 October 2020
We present our study of the effect of gamma-ray irradiation on bulk optical plastic materials as follows: three types of sheets commonly used for eyeglass lenses (CR-39, MR-8 and Trivex), cyclo olefin polymer ZEONEX E48R, styrene methyl methacrylate NAS21, polymethyl methacrylate PLEXIGLAS7N, polyphenylsulfone EUROPLEX PPSU, and poly(n-methyl methacrylimide PLEXIMID8813. We used the panoramic gamma-radiation facility with 60Co source with applied doses 14.6 kGy and 54.2 kGy. For the thought properties, we measured the transmission spectra from 200 to 1800 nm and refractive indices using the prism coupling technique at six wavelengths 532.0, 654.2, 846.4, 1308.2, 1549.1, and 1652.1 nm. We also studied the possibility of using several approximation methods for evaluating the refractive indices including Cauchy, Cauchy–Schott, Herzberger, Sellmeier, Sellmeier-2, and Sellmeier with an infrared correction. The measurements showed that the most precise determination model of the refractive indices was obtained by the Sellmeier approximation with an infrared correction. The transmission spectra measurement showed that the CR-39 and EUROPLEX PPSU polymers did not change significantly after the irradiation and the refractive indices measurement showed that ZEONEX E48R and EUROPLEX PPSU did not change the refractive indices values.
Springer Science+Business
Media, LLC, part of Springer Nature 2020
1 Introduction This reported study is going to be a part of basic research done with the aim of finding new types of polymers for the applications in environments
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https://doi.org/10.1007/s10854-020-04772-y
exposed to nuclear radiation such as nuclear power plants, nuclear pharmacy, cosmic research, and so on. In recent decades, the role of polymers used in optical and photonic applications has been growing and gradually a need arose for a newer generation of such materials. The new polymers would better fulfil
J Mater Sci: Mater Electron
the demand for special characteristics typical for that application, such as low absorption losses at important wavelengths for the optical communication systems, sensors, and biosensors (650, 850, 1300, and 1550 nm), tunability of the refractive indices, the environmental stability optical, and mechanical properties with changes in temperature and humidity. The aforementioned advantages would allow for large-scale and low-cost production of those polymer structures [1, 2]. There are already in existence several papers dealing
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