X-ray spectroscopy technique for the pile-up region

TL;DR

This paper introduces a novel X-ray spectroscopy method based on Beer-Lambert law to accurately measure true signals in the pile-up region, enabling detection of weak peaks near intense ones without attenuation.

Contribution

The paper presents a new pile-up rejection technique using X-ray absorption principles that improves detection of weak signals adjacent to strong peaks.

Findings

Detected a 10^4 times weaker peak in the pile-up region.

Resolved weak peaks next to intense peaks without using attenuators.

Enabled accurate measurement of peak intensities in high-flux conditions.

Abstract

We report a pile-up rejection technique based on X-ray absorption concept of Beer-Lambert law for measuring true events in the pile-up region. We have detected a 10^4 times weaker peak in the pile-up region. This technique also enables one to resolve the weak peaks adjacent to an intense peak provided the later lies in the lower energy side, and the peaks are at least theoretically resolvable by the detector used. We have resolved such peaks by reducing the intensity ratios in our experiment. The technique allows us to obtain the actual intensities of the observed peaks to have been measured without any attenuator. The possible applications of this technique can be to study the physics of two electron one-photon transition as well as the properties of projectile-like or target-like ions