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KMID : 0364920140390030150
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Journal of Radiation Protection and Research
2014 Volume.39 No. 3 p.150 ~ p.158
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Development of a Portable Device Based Wireless Medical Radiation Monitoring System
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Park Hye-Min
Hong Hyun-Seong
Kim Jeong-Ho
Ju Gwan-Sik
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Abstract
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Radiation-related practitioners and radiation-treated patients at medical institutions are inevitably exposed to radiation for diagnosis and treatment. Although standards for maximum doses are recommended by the International Commission on Radiological Protection (ICPR) and the International Atomic Energy Agency (IAEA), more direct and available measurement and analytical methods are necessary for optimal exposure management for potential exposure subjects such as practitioners and patients. Thus, in this study we developed a system for real-time radiation monitoring at a distance thatworks with existing portable device. The monitoring system comprises three parts for detection, imaging, and transmission. For miniaturization of the detection part, a scintillation detector was designed based on a silicon photomultiplier (SiPM). The imaging part uses a wireless charge-coupled device (CCD) camera module along with the detection part to transmit a radiation image and measured data through the transmission part using a Bluetooth-enabled portable device. To evaluate the performance of the developed system, diagnostic X-ray generators and sources of 137Cs, 22Na, 60Co, 204Tl, and 90Sr were used. We checked the results for reactivity to gamma, beta, and X-ray radiation and determined that the error range in the response linearity is less than 3% with regard to radiation strength and in the detection accuracy evaluation with regard to measured distance using MCNPX Code. We hope that the results of this study will contribute to cost savings for radiation detection system configuration and to individual exposure management.
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KEYWORD
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MCNPX, Portable device, Silicon photomultiplier (SiPM), Scintillation detector, CCD camera, Bluetooth, MCNPX
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