Characterization of CMOS sensor using X-ray irradiation

TL;DR

This paper presents the electrical characterization and radiation tolerance analysis of the MALTA monolithic pixel detector, highlighting its suitability for high-luminosity collider experiments through comprehensive testing and comparative analysis.

Contribution

It provides detailed electrical characterization and radiation tolerance assessment of MALTA sensors, including comparative DAC analysis across different sensor thicknesses.

Findings

MALTA sensors exhibit high radiation tolerance and superior performance.

Electrical characterization reveals key performance metrics.

Comparative analysis guides optimization for collider applications.

Abstract

Recent advancements in particle physics demand pixel detectors that can withstand increased luminosity in the future collider experiments. In response, MALTA, a novel monolithic active pixel detector, has been developed with a cutting-edge readout architecture. This new class of monolithic pixel detectors is found to have exceptional radiation tolerance, superior hit rates, higher resolution and precise timing resolution, making them ideally suited for experiments at the LHC. To optimize the performance of these sensors before their deployment in actual detectors, comprehensive electrical characterization has been conducted. This study also includes comparative DAC analyses among sensors of varying thicknesses, providing crucial insights for performance enhancement. For the further understanding of the effect of radiation, the sensors are being exposed to different fluence using high intensity X-ray source.