Cost effective electronic device for detecting, measuring and visual monitoring of radiation doses

Author(s):Md Rokonuzzamana , Ruhul A. Khanb
a Department of Nuclear Science and Engineering, Military Institute of Science and Technology, Dhaka, Bangladesh
b Institute of Radiation and Polymer Technology, Bangladesh Atomic Energy Commission, Savar, Dhaka, Bangladesh
International Journal of Smart Grid and Clean Energy, vol. 7, no. 4, October 2018: pp. 271-275
ISSN: 2315-4462 (Print)
ISSN: 2373-3594 (Online)
Digital Object Identifier: 10.12720/sgce.7.4.271-275

Abstract: Ionization Radiation is one of the major concerns for using nuclear energy. It carries more than 10eV energy which is enough to ionize atoms and molecules and break chemical bonds. Radioactive materials emit alpha, beta, or gamma radiation, positrons, and photons, respectively. The use of ionization radiation offers several advantages like the sterilization of foods, medical devices, laboratory, research, agricultural fields and many other industrial applications.
A Cobalt-60 source having present capacity of 140kCi has been used in this investigation. Survey meter can measure the level of radioactive contamination, radiation dose rate in a certain place. Few devices which can visualize the distribution of radiation intensity were already developed. However, the above mentioned devices cannot identify the locations of the radiation sources.
At present, Robots are being used for highly radioactive sources to measure its intensity at its close position where radiation workers cannot safely enter but it is very expensive, not user friendly and difficult to handle due to its heavy weight and modern technology. Gamma ray protective cameras are also very costly. In the research, the information of complete dose levels of source room have been obtained with the help of Amber Dosimeter during the application of source and developed cost effective electronic device for detecting, measuring and visual, monitoring of radiation doses. Through the developed device, the position of highly radioactive sources (Cobalt-60) is visualized and detected during its applications with the help of a Closed Circuit (CC) camera shielded by a Lead (Pb) box in a way that the lenses of the camera are placed toward mirror to take fix and video images of source and its room. CC Camera is connected with the computer in a safe zone of control room to visual monitoring the real situation inside the source room.

Keywords: Ionizing radiation monitoring, Cobalt-60 source, CC camera, cost effective, radioactive contamination, amber dosimeter
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