GEIGER MULLER: A THIN END WINDOW TUBE RADIATION DETECTOR

N.N. Ghuge, Sapna Jasrotia, Anamika, Chilsea Sadhu

Abstract: After various nuclear accidents in different places like Mayapuri locality, Delhi in India (April 2010), San juan de Dios radiotherapy accident in Costa Rica (1996) etc. people are very concerned about their safety and health related issues like cancer, tumor and ultimately death as the radioactivity cannot be noticed by our five senses. To know how much radioactivity is there in a place we need a specific device, like the RADIATION SURVEY METER presented in the paper. It has been designed as economical, easy to use, and accurate for the non-technical public to keep at home or work place and monitors the radioactivity level in the area. This paper represents the use of a gas filled radiation detector, GM tube (Geiger Muller tube), which will sense the radioactivity, sense the gamma radiation, display its intensity and save the data in memory so that it can be further analyzed. The high DC voltages necessary to polarize GM tube (500 - 900 V) can be obtained from batteries or through boost converter with few and less expensive electronic components. The system has been designed using digital display technique using PIC microcontroller, LCD and keys. The system is also facilitated with USB interface

Keywords: Nuclear accidents, radioactivity, radiation survey meter, GM tube

DOI: https://doi.org/10.15623/ijret.2015.0405037