Investigation of UV irradiation response of optical fiber sensors for radiation dosimetry

Mahmood, Aseel I.; Naseef, Intisar A.; Aljbar, Nahla A.; Muhammed, Nadia F.; Kadhim, Shehab A.; Ali, Suaad M.

doi:10.1016/j.ijleo.2020.164290

Cited by 2 publications

(1 citation statement)

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“…The introduced sensor showed very good accuracy and linearity. Investigation of RIA of modified cladding multimode fibers with different diameters in the UV-VIS region was achieved by Mahmood et al The s sensor has a very good response to low-level UV radiation [13]. The aim of this work is to evaluate the response of the modified cladding SMF (which is dipped with germanium) to UV radiation under different energies and to study the effect of the germanium concentration on sensor's characteristics.…”

Section: Introductionmentioning

confidence: 99%

Real-time Ultraviolet Radiation Sensor Based on Modified Cladding Optical Fibers Technology

Muhammed¹,

Mahmood²,

Kadhim³

et al. 2021

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In this work, the performance of single-mode optical fibers (SMFs) for ultraviolet (UV) radiation monitoring and dosimetry applications is presented. In particular, this work will focus on the Radiation-Induced Absorption (RIA) phenomena in the Near-Infrared domain (NIR). Such phenomena play a very important role in the sensing mechanism for SMF. Single mode fibers with a diameter of 50 µm were used for this purpose. These fibers were dipped into germanium (Ge) solution with different concentrations (1, 3, and 5 wt%) to produce the sensing part of the sensor. For all optical fiber sensors under investigation, the results indicated the dependence of the RIA on the applied UV radiation energy. Also, a redshift in peak wavelength was obtained. The influence of Ge concentration on sensing efficiency was studied and the best results were obtained with 3 wt% concentration as compared to 1 wt % and 5 wt % concentrations. The presented sensor shows good sensitivity to UV radiation which makes it possible to be applied in medical applications.

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Section: Introductionmentioning

confidence: 99%