Study and experimental prototyping of a digital instrument for detection and acquisition with local monitoring on LCD of ionizing radiations using BG51 module and ESP32 microchip

  • Sandrine Emvoutou Ndongo Laboratory of Research in Computer and Automatic Engineering, ENSET, University of Douala, Douala, Cameroon
  • Jean Mbihi Laboratory of Research in Computer and Automatic Engineering, ENSET, University of Douala, Douala, Cameroon
  • Jacquie Thérèse Ngo Bissé Higher Technical Teachers Training College of University of Yaoundé I in Ebolowa, Department of maintenance, Cameroon
  • Célestine Nguemgne Malongte Department of Radiology and Medical Imaging, Douala General Hospital, Cameroon
Keywords: Ionizing radiation, Biomedical instrument, BG51 sensor, ESP32, TFT LCD display, medical imaging


This paper presents a novel digital device for ionizing radiation detection in biomedical imaging media. It is designed and built using emerging technologies, in order to provide lower cost and high performance compared to existing biomedical instruments. The BG51 modular sensor is used as an ionizing radiation detector with corresponding pulses as output.  Then, the ESP32 microchip acquires and digitalizes the ionizing radiation doses, and an associated 2.4-inch TFT LCD screen, is used as a hardware graphical monitor. A number of real time tests conducted in the laboratory, indicates that the ionizing radiation detection process, varies in the range [10µSv 2mSv]. In addition, the  sample size with  rate 30 samples per  second, is approximately 25 000. Furthermore, the experimental results show the graph of ionizing radiation doses within a real environment where the proposed biomedical instrument is located.




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How to Cite
Emvoutou Ndongo S, Mbihi J, Ngo Bissé JT, Nguemgne Malongte C. Study and experimental prototyping of a digital instrument for detection and acquisition with local monitoring on LCD of ionizing radiations using BG51 module and ESP32 microchip. Alger. J. Eng. Technol. [Internet]. 2021Nov.21 [cited 2024May19];50:55-3. Available from: