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Year : 2021  |  Volume : 44  |  Issue : 1  |  Page : 19-21

Development of a desktop radiation monitoring system

1 Radiation Safety Systems Division, Bhabha Atomic Research Centre, Mumbai, Maharashtra, India
2 Health Physics Division, Bhabha Atomic Research Centre, Mumbai, Maharashtra, India
3 Department of Physics, Nowrosjee Wadia College, Pune, Maharashtra, India

Correspondence Address:
Vaishali M Thakur
Radiation Safety Systems Division, Bhabha Atomic Research Centre, Trombay, Mumbai - 000 085, Maharashtra
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Source of Support: None, Conflict of Interest: None

DOI: 10.4103/rpe.rpe_6_21

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This article presents the design and development of a digital desktop gamma radiation monitoring system using Geiger–Muller tube detector and microcontroller. The radiation detector, battery, signal processing circuits, and the microcontroller board are housed inside a tabletop wooden model with an analog watch and a digital display of radiation dose rate. The alarm level has been set at 1 μSv/h and indicated through buzzer and LED. The system has been calibrated using 137Cs standard source and has a sensitivity of 0.7364 cps/μSv/h. This model can be displayed on any table/desk or kept near a doorway to continuously monitor background radiation level, without drawing public attention, to detect any movement or presence of radiation source.

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