A Fiber-Optical Dosimetry Sensor for Gamma-Ray Irradiation Measurement in Biological Applications
Adel Shaaban Awad Elsharkawi,
Huda A. Alazab,
Mahmoud Sayed,
Mostafa A. Askar,
Ibrahim Y. Abdelrahman,
Amany A. Arafa,
Hassan I. Saleh,
Lotfy R. Gomaa,
Yi-Chun Du
Affiliations
Adel Shaaban Awad Elsharkawi
Department of Radiation Engineering, National Center for Radiation Research and Technology (NCRRT), Egyptian Atomic Energy Authority (EAEA), Cairo 11787, Egypt
Huda A. Alazab
Nuclear and Radiological Safety Research Center, Egyptian Atomic Energy Authority, Cairo 9621, Egypt
Mahmoud Sayed
Department of Radiation Engineering, National Center for Radiation Research and Technology (NCRRT), Egyptian Atomic Energy Authority (EAEA), Cairo 11787, Egypt
Mostafa A. Askar
Radiation Biology Department, National Center for Radiation Research and Technology (NCRRT), Egyptian Atomic Energy Authority (EAEA), Cairo 11787, Egypt
Ibrahim Y. Abdelrahman
Radiation Biology Department, National Center for Radiation Research and Technology (NCRRT), Egyptian Atomic Energy Authority (EAEA), Cairo 11787, Egypt
Amany A. Arafa
Department of Radiation Engineering, National Center for Radiation Research and Technology (NCRRT), Egyptian Atomic Energy Authority (EAEA), Cairo 11787, Egypt
Hassan I. Saleh
Department of Radiation Engineering, National Center for Radiation Research and Technology (NCRRT), Egyptian Atomic Energy Authority (EAEA), Cairo 11787, Egypt
Lotfy R. Gomaa
Faculty of Engineering at Shoubra, Banha University, Cairo 11672, Egypt
Yi-Chun Du
Department of Biomedical Engineering, National Cheng Kung University, Tainan 70101, Taiwan
In this paper, we propose a novel fiber-optical dosimetry sensor for radiation measurement in biological applications. A two-dimensional (2D) fiber-optical dosimeter (FOD) for radiation measurement is considered. The sensors are arranged as a 2D array in a tailored holder. This FOD targets accurate industrial and medical applications which seek more tolerant radiation dosimeters. In this paper, the FOD sensors are subjected to gamma-ray radiation facilities from the 137Cs gamma-ray irradiator type for low doses and 60Co gamma-ray irradiator for high doses. For better evaluation of radiation effects on the FOD sample, the measurements are performed using eight sensors (hollow cylinder shape) with two samples in each dose. The sensors were measured before and after each irradiation. To the author’s knowledge, the measurements of FOD transplanted inside animals are presented for the first time in this paper. A 2D simulation program has been implemented for numerical simulation based on the attenuation factors from the absorbed dose inside the in vivo models. A comparison between the FOD and the standard thermo-luminescence detector is presented based on the test of in vivo animal models. The results indicate that the proposed FOD sensor is more stable and has higher sensitivity.
