DEVELOPMENT OF ELECTRONIC DEVICE FOR DETECTING, MEASURING AND VISUAL MONITORING OF RADIATION DOSES FOR HIGHLY RADIOACTIVE SOURCES

ROKONUZZAMAN, MD

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DEVELOPMENT OF ELECTRONIC DEVICE FOR DETECTING, MEASURING AND VISUAL MONITORING OF RADIATION DOSES FOR HIGHLY RADIOACTIVE SOURCES

ROKONUZZAMAN, MD

URI: http://hdl.handle.net/123456789/479

Date: 2019-12

Abstract:

Ionization radiation is the major concern to use radiation energy. The professional radiation workers cannot go near to highly radioactive sources. At present robotic technologies are used for these purposes. But the robots are made with sophisticated technology, high cost, not user friendly, difficult to move from one country to another due to restriction by the country law, safety and security. For these reasons, this research has been carried out to find a simple, affordable and effective alternative device which can be used for the same purpose. Amber and red Perspex, camera/cc camera with shielding and Lead mirror has been loaded on microprocessor based controlled carrier for placing at the source room near to Co-60 source located at IRPT, Dhaka, Bangladesh. The carrier has been designed with the help of microprocessor based circuit elements and power source. The camera is shielded by Lead box in such a way that the lens of the camera focusing toward the Lead mirror through hole to capture the images from mirror. Physical properties (color) of radiation sensitive ambers and red Perspex has been changed during irradiation which indicates the detection of radiation. The absorbed doses are measured from amber and red Perspex with the help of ultra violet spectrophotometer and Harwell standard chart. The source position and real situation of the source room has been monitored from fixed and video images captured by the developed device operated from safe zone connecting camera with computer through Wi-Fi. The presence of radiation has been validated by camera glittering. This device is simple, affordable and does not include any complex robotic technologies due to its simplicity of design, technique and technologies which can be used as an effective alternative device for detecting, monitoring and visual monitoring of radiation doses for highly radioactive sources instead of costly robots.

Description:

First of all the author would like to thanks to Almighty Allah for completing the thesis. The author would like to express his sincere gratitude to Commandant, dean of all faculties, controller of examination and all of the teachers, faculty member and stuffs of department of Nuclear Science and Engineering (NSE), Military Institute of Science and Technology (MIST) for their wholehearted support and inspiration and the unique opportunity given to study in the post-graduation in Nuclear Science and Engineering. Special thanks to the supervisor, Dr. Ruhul Amin Khan, Director, The Institute of Radiation and Polymer Technology (IRPT), Atomic Energy Research Establishment (AERE), Savar, Dhaka, Bangladesh who has guided the researcher with his utmost sincerity for the completion of the research. It was impossible to complete the research without his sincere support and guidance. The researcher would also like to give thanks to the all officer and stuffs of Institute of Radiation and Polymer Technology (IRPT), Atomic Energy Research Establishment (AERE), Savar, Dhaka, Bangladesh and every single person who had extended their hand to make this research into a success. Finally the author would like to give special thanks to the all classmates who had extended their cooperation for making the success of the research.

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