This article presents the realization and implementation of
a low-cost intelligent electronic device, which detects the ambient
dose rate of Gamma and Beta ionizing radiation in
real-time. Developed according to the principle of nuclear analog
signal processing, the device uses a Geiger-Müller tube detector,
in which the electronic circuit has been readjusted to produce the
standard radiation protection signal (a slow positive logic
pulses). It also consists of low-cost components such as the
Atmega328P microcontroller board and XBee wireless modules for
environmental radiation and nuclear security monitoring. The
proposed device has several advantages, namely low energy
consumption, low-cost, easily deployable in the field (in-situ),
adapted for real-time measurements and data transmission to a remote
personal computer (PC). After calibration using Cesium (137Cs),
a comparative analysis of the data obtained from the proposed
dosimeter was carried out with those of an in-situ gamma
spectrometry chain (reference method) previously used at the same
place and under the same conditions. This analysis gave an
acceptable mean value of 64.30 nGy/h, of the proposed device,
compared to that of the gamma spectrometer, which is 50.67 nGy/h. The
prototype thus developed is simple, precise, and made for radiation
protection.