Development of Abel's inversion method to extract radially resolved optical emission maps from spectral data cubes collectedviapush-broom hyperspectral imaging with sub-pixel shifting sampling

Abstract

The optimization of a Fourier transform-based Abel's inversion algorithm allows the reconstruction of high-fidelity radially resolved OES images from SPS-PbHSI acquisition for plasma diagnostics for the first time.

High-Throughput Nanoparticle Characterization via Glow Discharge Optical Emission Spectroscopy Elemental Mapping

“…The push-broom hyperspectral imaging (PbHSI) system, described previously, − was adapted here to perform as an imaging spectrograph. Briefly, the light from the GD is demagnified ∼1.9× by a triplet ultraviolet–visible (UV–vis) achromat lens.…”

Atomic spectrometry update: review of advances in atomic spectrometry and related techniques

“…Commonly, an Abel inversion is used to extract this information, but this can lead to accumulation of errors towards the axial region, which is the area of most interest. These shortcomings were addressed by Shi et al , 82 who developed a Fourier Transform Abel inversion method designed to spread the error evenly across the radial profile. The method used OES images collected with a pushbroom hyperspectral imaging system using a sub-pixel shifting (SPS) sampling protocol in the direction of the radial reconstruction.…”

“…Pons et al 167 set out a revised analytical scheme for Se using a 76 Se- 78 Se double spike. This was chosen over the 82 Se- 78 Se and 74 Se- 77 Se spikes as it was predicted to generate lower analytical uncertainties over a much larger range of spike-sample mixing. However, a disadvantage of 76 Se- 78 Se is that both masses are isobaric with Ar dimers, e.g.…”