The development of nuclear technology has led to increased interest in radiation monitoring systems based on sensors and dosimeters that detect and measure ionizing radiation in a given environment. A gamma radiation (GR) sensor detects the presence of GR, while a GR dosimeter measures the amount of GR to which a person or object has been exposed. A thin film of Nano CuO/ZnO with a 90%:10% ratio on a Cu substrate was chosen to be fabricated using sol-gel method for GR sensing and dosimetry. This choice was the result of simulation of some metal oxides using a MATLAB program in one of my previous studies. The film was characterized as nano CuO/ZnO using X-ray diffraction (XRD), scanning electron microscopy (SEM), and energy-dispersive X-ray (EDXS) spectroscopy. Two silver paste electrodes were deposited on the film for Current-Voltage (I-V) characterization, which showed that the sensor behaved like a diode. The sensitivity of the sensor to GR was studied by irradiating it with different low doses of GR. The I-V curves of the sensor were measured after each irradiation, and the current-dose (I-D) curve was studied and plotted at a voltage of 0.5 V from which an equation for calculating the accumulated dose was deducted. The results show that the nano CuO/ZnO thin film sensor has promising properties for GR dosimetry applications in which the accumulated low dose of GR can be calculated.
 
Special Issue of AEIC 2024 (Electrical and System & Computer Engineering  Session)