Thermoluminescence characteristics of Nd-doped SiO2 optical fibers irradiated with the (60)Co gamma rays.

Appl Radiat Isot

Department of Physics, Rabigh College of Science and Arts, King Abdulaziz University, Post Box 344, Rabigh 21911, Saudi Arabia.

Published: December 2014

Thermoluminescence (TL) properties (radiation sensitivity, dose response, signal fading) of Nd-doped SiO2 optical fibers irradiated with 1.25MeV photons to 1-50Gy were studied. The peak of the glow curve is around 190°C regardless of the dose. The dose response is linear up to 50Gy. The radiation sensitivity is 219nCmg(-1)Gy(-1). The fiber can be a potential candidate for photon radiotherapy dosimetry due to its high radiation sensitivity, linear dose response in a wide range, slow fading, and high spatial resolution due to the small size of the fiber.

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http://dx.doi.org/10.1016/j.apradiso.2014.07.012DOI Listing

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