Development of the FASPAX IC for a high burst rate X-ray imager with very high dynamic range (${10^5}$) capability in small pixels

TL;DR

This paper presents the development of the FASPAX integrated circuit, enabling high burst rate X-ray imaging with very high dynamic range in small pixels through current splitting techniques.

Contribution

It introduces a novel current splitting method integrated into an IC for X-ray imagers, achieving a dynamic range of 10^5 in small pixels.

Findings

Two front end prototypes demonstrate the technique's effectiveness.

The optimized design achieves high dynamic range in small pixels.

The method supports high burst rate X-ray imaging.

Abstract

The technique of current splitting is presented as part of an integrated circuit development for an X-ray imager. This method enables integration of charge signals of unprecedented magnitude in small pixels, achieving a dynamic range of ${10^5}$. Results from two front end prototypes are given and a final optimized design is proposed.