A SOI-Based Low Noise and Wide Dynamic Range Event-Driven Detector for X-Ray Imaging

TL;DR

This paper presents a silicon-on-insulator based X-ray detector with low noise and wide dynamic range, utilizing adaptive gain and correlated double sampling to enhance performance for energy detection.

Contribution

It introduces a novel SOI-based detector design with in-pixel gain selection and noise reduction techniques for improved X-ray energy detection.

Findings

Achieved low noise performance in X-ray detection.

Demonstrated wide dynamic range capability.

Implemented adaptive gain for small and large signals.

Abstract

A low noise and wide dynamic range event driven detector for the detection of X-Ray energy is realized using 0.2 [um] Silicon on insulator (SOI) technology. Pixel circuits are divided into two parts; signal sensing circuit and event detection circuit. Event detection circuit is activated when X-Ray energy falls into the detector. In-pixel gain selection is implemented for the detection of a small signal and wide band of energy particle. Adaptive gain and capability of correlated double sampling (CDS) technique for the kTC noise canceling of charge detector realizes the low noise and high dynamic range event driven detector.