Vol. 4, 2019

Original research papers

Radiation Detectors

ELECTRONIC READER DESIGN WITH RADFET (PMOSFET) DOSIMETER SENSOR

Nesrin Teki̇n, Ferdi Sarimli, Zeynel Abidin Sezer, Ercan Yilmaz

Pages: 122–124

DOI: 10.37392/RapProc.2019.24

In this study, a new reader has been designed to measure the amount of radiation dose detected by RadFET (pMOSFET) sensor. The designed reader calculates the voltage threshold voltage (Vth) shifts of the pMOSFET to determine radiation dose and display it on the Touch TFT LCD screen placed on the printed electronic circuit. It has been developed more in particular to be easily used in radiotherapy and other healthcare field which have radiation sources. The electronic board has also been developed to adjust and read the data for SiO2 and Er3O2 sensor structured RadFETs. The electronic card has been designed with STM32F103 series processor that has 12-bit ADC resolution. In addition, specific Bluetooth circuit has been designed for communication. Thus, dose measurements versus date graph, personal details (name, age etc.) can be sent to personal computers and devices such as smart phones and tablets. Dose measurements can be currently kept by micro SD card.
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