Dynamic reconstruction for atom probe tomography

TL;DR

This paper introduces a dynamic reconstruction algorithm for atom probe tomography that accounts for changing geometric parameters during analysis, improving accuracy over traditional static methods.

Contribution

It presents a novel reconstruction approach that dynamically adjusts parameters, addressing limitations of previous static methods in atom probe tomography.

Findings

Dynamic method improves reconstruction accuracy

Static assumptions can cause significant errors

New algorithm adapts to parameter variations

Abstract

Progress in the reconstruction for atom probe tomography has been limited since the first implementation of the protocol proposed by Bas et al. in 1995. This approach, and those subsequently developed, assume that the geometric parameters used to build the three-dimensional atom map are constant over the course of an analysis. Here, we test this assumption within the analyses of low-alloyed materials. By building upon methods recently proposed to measure the tomographic reconstruction parameters, we demonstrate that this assumption can introduce significant limitations in the accuracy of the analysis. Moreover, we propose a strategy to alleviate this problem through the implementation of a new reconstruction algorithm that dynamically accommodates variations in the tomographic reconstruction parameters.