The Andrew and Erna Viterbi Faculty of Electrical & Computer Engineering
CMOS Sensing System for Radon and Alpha Radiation
Sensing of high energy alpha radiation is required for different industries, such as: Medical, nuclear, mining and also for home usage, as in the specific case of radon gas detection.
Radon gas (Rn-222) is a radioactive gas that emerges naturally from soils and rocks. It represents one of the main sources of exposure to radioactivity in humans, as it emits alpha particles that may damage lung tissues after inhalation.
Radon gas is the second most important cause of lung cancer and the most important cause of lung cancer in non-smokers, while every of 1 of 15 homes in the US suffers from high level of radon concentration.
This study focuses on a CMOS sensing system for Radon and alpha radiation, which is based on a semiconductor device that’s integrated monolithically on a single chip with the Readout Circuitry. Thus, allowing fabrication of low power and low cost sensing system. The sensor is based on a new mosaic design of an array of Floating Gate non-volatile memory like transistors, which are implemented in a standard CMOS technology, with a single polysilicon layer.
The sensing system’s architecture and design will be presented, along with key operation concepts, characterization and analysis results, alpha and radon exposure results and comparison to commercial radon detectors.
M.Sc. Under the supervision of Prof. Emeritus Yael Nemirovsky
Thu 22 Jul 2021
Start Time: 11:00
End Time: 12:00
Zoom meeting | The Andrew And Erna Viterbi Faculty Of Electrical & Computer Engineering